CN108034831B - A kind of integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust - Google Patents
A kind of integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust Download PDFInfo
- Publication number
- CN108034831B CN108034831B CN201810033731.4A CN201810033731A CN108034831B CN 108034831 B CN108034831 B CN 108034831B CN 201810033731 A CN201810033731 A CN 201810033731A CN 108034831 B CN108034831 B CN 108034831B
- Authority
- CN
- China
- Prior art keywords
- antimony
- liquid
- flue dust
- gold concentrate
- arsenic
- Prior art date
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- 239000012141 concentrate Substances 0.000 title claims abstract description 138
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 111
- 239000010931 gold Substances 0.000 title claims abstract description 111
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 109
- 238000000034 method Methods 0.000 title claims abstract description 100
- 239000003500 flue dust Substances 0.000 title claims abstract description 99
- 238000002844 melting Methods 0.000 title claims abstract description 68
- 230000008018 melting Effects 0.000 title claims abstract description 68
- 239000007788 liquid Substances 0.000 claims abstract description 181
- 238000002386 leaching Methods 0.000 claims abstract description 114
- 229910052787 antimony Inorganic materials 0.000 claims abstract description 112
- 229910052785 arsenic Inorganic materials 0.000 claims abstract description 112
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims abstract description 109
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims abstract description 106
- 230000007062 hydrolysis Effects 0.000 claims abstract description 88
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 88
- 239000007787 solid Substances 0.000 claims abstract description 60
- KAPYVWKEUSXLKC-UHFFFAOYSA-N [Sb].[Au] Chemical compound [Sb].[Au] KAPYVWKEUSXLKC-UHFFFAOYSA-N 0.000 claims abstract description 48
- LIYKJALVRPGQTR-UHFFFAOYSA-M oxostibanylium;chloride Chemical compound [Cl-].[Sb+]=O LIYKJALVRPGQTR-UHFFFAOYSA-M 0.000 claims abstract description 40
- 230000003301 hydrolyzing effect Effects 0.000 claims abstract description 26
- 238000006298 dechlorination reaction Methods 0.000 claims abstract description 21
- 230000009467 reduction Effects 0.000 claims abstract description 15
- 150000003839 salts Chemical class 0.000 claims abstract description 13
- 230000007704 transition Effects 0.000 claims abstract description 9
- BMWMWYBEJWFCJI-UHFFFAOYSA-K iron(3+);trioxido(oxo)-$l^{5}-arsane Chemical compound [Fe+3].[O-][As]([O-])([O-])=O BMWMWYBEJWFCJI-UHFFFAOYSA-K 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 75
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 60
- 238000000926 separation method Methods 0.000 claims description 49
- 238000006243 chemical reaction Methods 0.000 claims description 41
- 230000008569 process Effects 0.000 claims description 34
- 238000001704 evaporation Methods 0.000 claims description 29
- 230000008020 evaporation Effects 0.000 claims description 28
- 239000003795 chemical substances by application Substances 0.000 claims description 25
- 238000006722 reduction reaction Methods 0.000 claims description 23
- 239000012452 mother liquor Substances 0.000 claims description 22
- 230000001131 transforming effect Effects 0.000 claims description 21
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 238000004519 manufacturing process Methods 0.000 claims description 17
- 239000012153 distilled water Substances 0.000 claims description 16
- 238000000605 extraction Methods 0.000 claims description 16
- 238000012545 processing Methods 0.000 claims description 14
- VETKVGYBAMGARK-UHFFFAOYSA-N arsanylidyneiron Chemical compound [As]#[Fe] VETKVGYBAMGARK-UHFFFAOYSA-N 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 12
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 11
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 11
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 11
- 239000007800 oxidant agent Substances 0.000 claims description 11
- 230000001590 oxidative effect Effects 0.000 claims description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 9
- 239000003513 alkali Substances 0.000 claims description 9
- 239000000460 chlorine Substances 0.000 claims description 9
- 229910052801 chlorine Inorganic materials 0.000 claims description 9
- 239000002002 slurry Substances 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 8
- 239000000654 additive Substances 0.000 claims description 8
- 230000000996 additive effect Effects 0.000 claims description 8
- 239000003638 chemical reducing agent Substances 0.000 claims description 8
- FBAFATDZDUQKNH-UHFFFAOYSA-M iron chloride Chemical compound [Cl-].[Fe] FBAFATDZDUQKNH-UHFFFAOYSA-M 0.000 claims description 7
- 238000010792 warming Methods 0.000 claims description 7
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 6
- RCEAADKTGXTDOA-UHFFFAOYSA-N OS(O)(=O)=O.CCCCCCCCCCCC[Na] Chemical compound OS(O)(=O)=O.CCCCCCCCCCCC[Na] RCEAADKTGXTDOA-UHFFFAOYSA-N 0.000 claims description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 6
- 239000000908 ammonium hydroxide Substances 0.000 claims description 6
- 229910052725 zinc Inorganic materials 0.000 claims description 6
- 239000011701 zinc Substances 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 5
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 claims description 4
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 claims description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 4
- 235000012538 ammonium bicarbonate Nutrition 0.000 claims description 4
- 239000001099 ammonium carbonate Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- BZSXEZOLBIJVQK-UHFFFAOYSA-N 2-methylsulfonylbenzoic acid Chemical compound CS(=O)(=O)C1=CC=CC=C1C(O)=O BZSXEZOLBIJVQK-UHFFFAOYSA-N 0.000 claims description 3
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 3
- 230000035484 reaction time Effects 0.000 claims 1
- 238000003723 Smelting Methods 0.000 abstract description 25
- 229910000510 noble metal Inorganic materials 0.000 abstract description 13
- 239000007795 chemical reaction product Substances 0.000 abstract description 3
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 abstract description 2
- 231100001231 less toxic Toxicity 0.000 abstract description 2
- 238000003756 stirring Methods 0.000 description 21
- 229910052709 silver Inorganic materials 0.000 description 20
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 18
- 239000004332 silver Substances 0.000 description 18
- 238000011084 recovery Methods 0.000 description 14
- 239000000047 product Substances 0.000 description 13
- 239000012535 impurity Substances 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 239000002253 acid Substances 0.000 description 9
- 150000002500 ions Chemical class 0.000 description 8
- 239000000428 dust Substances 0.000 description 7
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 6
- DJHGAFSJWGLOIV-UHFFFAOYSA-N Arsenic acid Chemical compound O[As](O)(O)=O DJHGAFSJWGLOIV-UHFFFAOYSA-N 0.000 description 5
- 229940000488 arsenic acid Drugs 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000012065 filter cake Substances 0.000 description 5
- 239000010419 fine particle Substances 0.000 description 5
- 210000004209 hair Anatomy 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 238000004064 recycling Methods 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- 230000004044 response Effects 0.000 description 5
- 239000008399 tap water Substances 0.000 description 5
- 235000020679 tap water Nutrition 0.000 description 5
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 229910052708 sodium Inorganic materials 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- FYEHYMARPSSOBO-UHFFFAOYSA-N Aurin Chemical compound C1=CC(O)=CC=C1C(C=1C=CC(O)=CC=1)=C1C=CC(=O)C=C1 FYEHYMARPSSOBO-UHFFFAOYSA-N 0.000 description 3
- 241001060848 Carapidae Species 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 239000003599 detergent Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 235000010755 mineral Nutrition 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 230000001698 pyrogenic effect Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- KWSLGOVYXMQPPX-UHFFFAOYSA-N 5-[3-(trifluoromethyl)phenyl]-2h-tetrazole Chemical compound FC(F)(F)C1=CC=CC(C2=NNN=N2)=C1 KWSLGOVYXMQPPX-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 2
- 241001417490 Sillaginidae Species 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- DLISVFCFLGSHAB-UHFFFAOYSA-N antimony arsenic Chemical compound [As].[Sb] DLISVFCFLGSHAB-UHFFFAOYSA-N 0.000 description 2
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- SNRUBQQJIBEYMU-UHFFFAOYSA-N dodecane Chemical compound CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 2
- 231100000053 low toxicity Toxicity 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 2
- 235000017557 sodium bicarbonate Nutrition 0.000 description 2
- 229910001379 sodium hypophosphite Inorganic materials 0.000 description 2
- 239000012265 solid product Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- YFDKVXNMRLLVSL-UHFFFAOYSA-N 2-dodecylbenzenesulfonic acid;sodium Chemical compound [Na].CCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O YFDKVXNMRLLVSL-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- XEIPQVVAVOUIOP-UHFFFAOYSA-N [Au]=S Chemical compound [Au]=S XEIPQVVAVOUIOP-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000006256 anode slurry Substances 0.000 description 1
- 229910000410 antimony oxide Inorganic materials 0.000 description 1
- FAWGZAFXDJGWBB-UHFFFAOYSA-N antimony(3+) Chemical compound [Sb+3] FAWGZAFXDJGWBB-UHFFFAOYSA-N 0.000 description 1
- MJLGNAGLHAQFHV-UHFFFAOYSA-N arsenopyrite Chemical compound [S-2].[Fe+3].[As-] MJLGNAGLHAQFHV-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 229910052792 caesium Inorganic materials 0.000 description 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 239000000413 hydrolysate Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- -1 mine Inorganic materials 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910052683 pyrite Inorganic materials 0.000 description 1
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 1
- 239000011028 pyrite Substances 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000008234 soft water Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 229910052569 sulfide mineral Inorganic materials 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- XSOKHXFFCGXDJZ-UHFFFAOYSA-N telluride(2-) Chemical compound [Te-2] XSOKHXFFCGXDJZ-UHFFFAOYSA-N 0.000 description 1
- 231100000701 toxic element Toxicity 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/02—Working-up flue dust
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B11/00—Obtaining noble metals
- C22B11/04—Obtaining noble metals by wet processes
- C22B11/042—Recovery of noble metals from waste materials
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B13/00—Obtaining lead
- C22B13/04—Obtaining lead by wet processes
- C22B13/045—Recovery from waste materials
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B30/00—Obtaining antimony, arsenic or bismuth
- C22B30/02—Obtaining antimony
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
- C22B7/007—Wet processes by acid leaching
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of integrated conduct methods containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust, belong to noble metal pyrometallurgical smelting technical field.Integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust of the invention, melting flue dust is first passed through into a salt Ore Leaching, ore pulp will be leached to carry out the reduction of high price antimony and hydrolyze solid antimony, liquid after obtaining high antimony gold concentrate and once hydrolyzing, secondary salt Ore Leaching is carried out to high antimony gold concentrate to obtain containing miscellaneous lower high-grade Gold Concentrate under Normal Pressure and secondary leachate, secondary leachate obtains liquid after high-grade antimony oxychloride and secondary hydrolysis after hydrolysis, and antimony oxychloride obtains stibium trioxide end product after carrying out dechlorination transition；Liquid containing arsenic uses molysite to consolidate arsenic technique and obtains liquid after stable less toxic arsenical ferric arsenate and arsenic removal.It is handled using method of the invention containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust, noble metal antimony therein can be made effectively to be recycled, harmful element arsenic is solidified, to solve the industry problems that As and Sb flue dust is difficult to handle.
Description
Technical field
The invention belongs to noble metal pyrometallurgical smelting technical fields, and in particular to from containing in miscellaneous Gold Concentrate under Normal Pressure pyrometallurgical smelting flue dust points
From Gold Concentrate under Normal Pressure, the technique of recycling valuable metal antimony, harmless treatment toxic element arsenic.
Background technique
China's gold resource is difficult gold sulfide ore there are about 30%, and gold is mainly in fine particles disseminated in sulfide mineral
State exists, and is usually wrapped up by pyrite, mispickel or magnetic iron ore, causes the cyanide leaching of gold relatively low；In addition, carbon containing
The gold minerals such as mine, antimony mine and telluride mine lead to the hydrometallurgic recovery rate of gold due to " robbing gold " effect of carbon or the package of non-ferrous metal
It is relatively low.Report about research difficult-treating gold mine is more, mainly there is two kinds of techniques of wet process and pyrogenic process.
Wherein, wet processing mainly uses multistage Cyanide Leaching, pressure oxidation leaching, chloride oxidation leaching, nitric acid to urge
Change the methods of Oxidation Leaching to carry out pretreatment or directly improve gold recovery.Thermal process is mainly using the pre- place of reinforcing roasting
Reason, two-stage calcination dearsenification pretreatment, direct pyrometallurgical smelting catch the techniques such as golden slag making, and it is coloured in addition will exactly to contain miscellaneous Gold Concentrate under Normal Pressure supplying
Smelting system comprehensive recovery of gold.Pyrogenic process pretreatment containing miscellaneous Gold Concentrate under Normal Pressure is not shown due to gained removal of impurities Gold Concentrate under Normal Pressure gold recovery raising
Work, separating obtained impurity element disposal technology require the reasons such as high, expense is larger, cause industrial application limited and develop slowly；
The processing method of the supplying nonferrous smelting system containing miscellaneous Gold Concentrate under Normal Pressure, since gold is returned in final step in the whole process flow
It receives, system overstocks that the time is longer, business finance cost is overweight and can not large-scale application.Therefore, contain miscellaneous Gold Concentrate under Normal Pressure pyrometallurgical smelting
Technique, due to having many advantages, such as that adaptability to raw material is strong, equipment easily enlargement and automation control, waste water yield is less and in industry
Change and has overwhelming superiority in treatment process.
During the pyrometallurgical smelting containing miscellaneous Gold Concentrate under Normal Pressure, there are about the productions of the fine particles complexity flue dust of Gold Concentrate under Normal Pressure treating capacity 1-3%
Raw, for the flue dust in addition to containing certain gold, silver noble metal, main component is the volatile impurity member of the low melting point in Gold Concentrate under Normal Pressure
Element, such as arsenic, antimony, lead, zinc, in addition fine particles mineral grain also not sufficiently reactive containing part.Some Enterprises are to melting cigarette
Dirt is handled using the directly mode of melting down, and a large amount of flue dust returns to production procedure and is easy to cause impurity content of the system accumulation raising, furnace
The problems such as condition deteriorates, effective treating capacity declines and effectively production cost increases.Therefore, contain miscellaneous Gold Concentrate under Normal Pressure melting flue dust valuable element
Synthetical recovery and the appropriate disposition of harmful element become and influence the important prerequisite that thermal process runs well.
Currently, the report about non-ferrous metal copper smelting smoke dust, lead-zinc smelting dust comprehensive processing technique, smoke is more, part is
It is carried out industrial experiment or enters industrialization phase.Such as, Central South University Guo Xueyi et al. has been done largely in terms of arsenic-containing smoke dust
Fruitful research, it was recently reported that (China YouSe Acta Metallurgica Sinica, 2015,25 (3): 806-814) certain lead Smelter Copper flotation dreg
Using vulcanized sodium, Selectively leaching separates arsenic to the flue dust of shaft smelting process production under alkaline condition, obtains antimony concentrate and contains
Arsenic liquid, liquid containing arsenic further produce natrium arsenicum technique.Zhang Xu et al. report (Central South University's journal (natural science edition), 2014,45
(5): 1390-1396) lead smelts high-arsenic antimony flue dust using alkaline oxygen leaching technique, and arsenic and antimony is made respectively to be oxidized to high price
State, high price arsenic enters solution, and high price antimony is fixed in leached mud.Hu Xin et al. reports (mining and metallurgy, 2014,23 (6): 36-
39) lead anode slurry melting As and Sb flue dust uses hydrochloric acid leaching arsenic antimony technique, obtains elemental arsenic using sodium hypophosphite reducing leaching liquid,
To realize the separation of arsenic antimony, the hydrolysis production of antimony liquid is divided to obtain antimony oxide.Zhou Wei et al. has invented a kind of " wet-treating high-arsenic antimony
The method (CN201310288689.8) of oxygen powder " dissolves antimony trioxide powder with high arsenic, obtained filtrate using 36%~38% concentrated hydrochloric acid
Using sodium hypophosphite arsenic removal at high temperature.Above-mentioned wet processing can be suitable for fixing for different raw material sources designs
The process flow of raw material, but the above method is not quite identical to the target containing miscellaneous Gold Concentrate under Normal Pressure pyrometallurgical smelting flue dust integrated treatment, together
When flue dust as handled by it in noble metal gold and silver content it is less, do not consider the enriching and recovering of noble metal, therefore above-mentioned wet process
Technique cannot be effectively applicable to the integrated treatment containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust.
Containing miscellaneous Gold Concentrate under Normal Pressure pyrometallurgical smelting flue dust due to dopant species, grade composition, element object phase etc. and non-ferrous metal
It smelts gained flue dust to differ greatly, the processing method of flue dust obtained by non-ferrous metal metallurgy is not particularly suited for molten containing miscellaneous Gold Concentrate under Normal Pressure pyrogenic process
Refine the processing of flue dust.And it is less about the report containing miscellaneous Gold Concentrate under Normal Pressure pyrometallurgical smelting dust treatment technique at present, such as the part flue dust
It is not disposed properly, will affect the normal operation of pyrometallurgical smelting enterprise production, long-term stockpiling be easy to cause harmful element and again
Metal loss pollutes soil and water resources, while valuable element cannot be recycled effectively, influence the performance of enterprises and normal operation.Therefore,
The appropriate disposition of melting flue dust is that complicated golden ore concentrate pyrometallurgical smelting technique is able to the important link operated normally and basic guarantee.
Summary of the invention
1. technical problems to be solved by the inivention
It is an object of the invention to overcome to be difficult to effectively be located to containing miscellaneous Gold Concentrate under Normal Pressure pyrometallurgical smelting flue dust in the prior art
Reason provides a kind of containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust to cause the deficiency of the valuable element wasting of resources and problem of environmental pollution
Integrated conduct method.It is handled using method of the invention containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust, your gold therein can be made
Belong to antimony effectively to be recycled, solidifies harmful element arsenic, to solve the industry problems that As and Sb flue dust is difficult to handle.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention are as follows:
A kind of integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust of the invention, comprising the following steps:
Step 1: the reinforcing salt Ore Leaching of melting flue dust
Under stirring condition, consolidating mass ratio by liquid is that hydrochloric acid leachate progress is added into melting flue dust to be processed by 3:1-8:1
Leaching process；
Step 2: leaching the reduction of high price antimony in ore pulp and hydrolyzing solid antimony
It after Leach reaction, maintains to leach slurry temperature and leachate consolidates mass ratio, pentavalent is added to leaching in ore pulp
The reducing agent of 1.0-1.2 times of antimony stoichiometric number carries out reduction reaction；Continue addition water after reduction reaction to be hydrolyzed admittedly
Antimony, to hydrolysis after be separated by solid-liquid separation, obtain high antimony gold concentrate and liquid containing arsenic；
Step 3: the secondary leaching of high antimony gold concentrate
The high antimony gold concentrate of gained is placed in hydrochloric acid leachate and carries out secondary leaching, is separated by solid-liquid separation after leaching,
It obtains containing miscellaneous lower high-grade Gold Concentrate under Normal Pressure and secondary leachate (scavenging solution containing antimony), wherein tradition can be used in high-grade Gold Concentrate under Normal Pressure
Technique directly carries out the noble metals such as recycling gold, silver；
Step 4: secondary leachate hydrolysis and the production of stibium trioxide
Secondary leachate is added to the water and carries out secondary hydrolysis, then liquid and height after being separated by solid-liquid separation and obtaining secondary hydrolysis
Grade antimony oxychloride；Distilled water and transforming agent are added into gained high-grade antimony oxychloride, and pH value of solution is adjusted to 7-9 and carries out dechlorination turn
Type is separated by solid-liquid separation after reacting 1-4h, obtains stibium trioxide product and dechlorination liquid；
Step 5: the solid arsenic of the liquid containing arsenic is handled
Arsenic liquid will be contained to be placed in reactor, be that iron chloride or frerrous chloride is added in 1:1.05-1.2 by arsenic iron molar ratio, rise
Then temperature is added oxidant and carries out aoxidizing solid arsenic reaction 2-4h, be separated by solid-liquid separation after reaction, obtain arsenic to 40-85 DEG C
Liquid after sour scum and solid arsenic.
Further, it is 2-8mol/L that concentration of hydrochloric acid is controlled in the step 1, and extraction temperature is 20-85 DEG C, is leached
Time is 0.5-4h.
Further, the reducing agent in the step 2 selects iron, zinc or antimony simple substance, preferably antimony simple substance, and reduction is anti-
It is 0.5-2h between seasonable.
Further, the additive amount of water is 1.0-5.0 times for leaching ore pulp total volume, water when hydrolyzing in the step 2
The solution time is 0.5-4h；The additive amount of water is 1.0-6.0 times of secondary leachate volume, water when secondary hydrolysis in the step 4
The solution time is 0.5-2h.
Further, liquid after the secondary hydrolysis of gained in step 4 is evaporated concentration, concentrated mother liquor circulation is for height
The secondary leaching of antimony gold concentrate, evaporation condensed water circulation are used for the hydrolysis of secondary leachate；Dechlorination transition gained dechlorination liquid return into
Liquid is evaporated processing after secondary hydrolysis.
Further, the transforming agent that dechlorination makes the transition in the step 4 selects lauryl sodium sulfate, detergent alkylate
Any two or three of mixture in sodium sulfonate and EDTA, the additive amount of transforming agent are the 0.5-8% of antimony oxychloride quality, water
Additive amount be 1-3 times of high-grade antimony oxychloride quality.
Further, in the step 4 using two kinds in sodium hydroxide, sodium bicarbonate, ammonium hydroxide and ammonium hydrogen carbonate or
PH is adjusted in two or more combination alkali.
Further, the transforming agent that dechlorination makes the transition in the step 4 selects the combination transforming agent comprising EDTA, and adopts
The pH value of high-grade antimony oxychloride solution is adjusted with the combination alkali containing ammonium hydroxide.
Further, liquid after the solid arsenic of gained in step 5 is subjected to cooling heavy lead, obtained after separation of solid and liquid lead concentrate and
De- lead liquid is evaporated and is concentrated to get evaporation mother liquor and condensed water by de- lead liquid, and evaporation mother liquor returns to flue dust and leaches process, condensation
Water returns to the solid antimony process of hydrolysis.
Further, the oxidant in step 5 selects one or both of hydrogen peroxide, ozone, chlorine and sodium chlorate
Above any combination oxidant.
3. beneficial effect
Using technical solution provided by the invention, compared with prior art, there is following remarkable result:
(1) a kind of integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust of the invention, using hydrochloric acid solution to melting cigarette
Dirt carries out leaching process, then carries out the reduction of high price antimony in leaching ore pulp and hydrolyzes solid antimony, so as to remove through being separated by solid-liquid separation
Harmful element arsenic in ore pulp；Secondary leaching and hydrolysis are carried out to the high antimony gold concentrate of gained again, low contained so as to isolated
The Gold Concentrate under Normal Pressure of miscellaneous high-purity can handle the complicated golden ore concentrate melting flue dust of different arsenic, antimony content using method of the invention,
It is effectively ensured on the basis of gold and silver recoveries, synthetical recovery antimony forms stibium trioxide product, and solidifies harmful element arsenic, comparatively ideal
Solve the industry problems that As and Sb flue dust is difficult to handle.
(2) a kind of integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust of the invention, process flow is short, using primary
It leaches ore pulp direct hydrolysis to consolidate antimony while separating foreign ion, obtains being conducive to produce Gao Pin containing miscellaneous lower high antimony gold concentrate
Matter stibium trioxide product can directly obtain high-grade Gold Concentrate under Normal Pressure after the high secondary leaching of antimony gold concentrate, which can be used biography
System method recycles gold, silver noble metal.
(3) a kind of integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust of the invention, will once leach ore pulp and first carry out
Hydrolysis process, then be separated by solid-liquid separation, due to the presence of superfine-particle ore particles a large amount of in ore pulp, it can be used as the solid antimony of hydrolysis
The nucleus of reaction exists, and so as to promote the progress of hydrolysis, advantageously reduces the content of antimony in liquid after hydrolyzing, improves antimony
The rate of recovery, and reduce impurity content.
(4) a kind of integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust of the invention, primary to ore pulp progress is leached
First high price antimony is restored before hydrolysis, so as to which the gold, silver noble metal of effects of ion state will be dissolved on a small quantity,
It is adsorbed and is enriched in high antimony gold concentrate by fine particles flue dust and the solid product hydrolyzed to form during hydrolyzing solid antimony, avoid
Gold, silver losses, while also helping the subsequent rate of recovery for improving antimony.
(5) a kind of integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust of the invention, containing antimony liquid, directly arsenic obtains admittedly
The stable ferric arsenate product of low toxicity thus greatly reduces the harm of arsenic, while liquid is heavy using the recycling of crystallisation by cooling method after solid arsenic
Metallic lead reduces resource waste so that multiple element is effectively recycled and handled.
(6) a kind of integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust of the invention, liquid passes through evaporation after secondary hydrolysis
Make the secondary leaching that high antimony gold concentrate is used for after leaching agent regeneration of hydrochloric acid, the condensed water evaporated takes off lead liquid for hydrolyzing antimony
It is used for flue dust leaching after making leaching agent regeneration of hydrochloric acid by evaporation, obtained condensed water to pass through evaporation technology for hydrolyzing solid antimony
The shunting of removing contamination of hydrochloric acid leaching agent is realized, so that the closed cycle for effectively realizing system water and acid utilizes, without poisonous and harmful powder
Dirt generates, and non-wastewater discharge, operating environment are friendly, environmentally protective, is convenient for commercial introduction application.
Detailed description of the invention
Fig. 1 is a kind of process flow chart of integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure pyrometallurgical smelting flue dust of the invention.
Specific embodiment
In the pyrometallurgical smelting technique containing miscellaneous Gold Concentrate under Normal Pressure, other than output is without miscellaneous Gold Concentrate under Normal Pressure and smelting slag, it can not keep away
It generates a large amount of melting flue dust with exempting from, on the one hand will lead to the loss of the valuable metals such as gold, silver, antimony, on the other hand can also
Serious environmental pollution is caused, arsenic especially therein has biggish toxicity.It is usually all directly will in currently available technology
Above-mentioned melting flue dust carries out melting down use, increases so as to cause impurity content of the system accumulation, working of a furnace deterioration, effective treating capacity decline, because
This many researcher starts to put forth effort on the research of above-mentioned melting dust comprehensive processing technique, smoke.But at present in most of research usually
It is all to be handled using alkali leaching mode non-ferrous metal pyrometallurgical smelting flue dust, but this method is difficult to containing miscellaneous Gold Concentrate under Normal Pressure melting cigarette
Arsenic in dirt is effectively removed, and does not consider gold and silver recoveries.
The present invention is difficult to be effectively treated not to containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust primarily directed to using existing method
Foot, and provide it is a kind of be simple and efficient, method of the technique closed cycle integrated treatment containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust.Wherein, such as
Where effectively improve the rate of recovery of gold, silver in flue dust, guarantee in final gained Gold Concentrate under Normal Pressure on the basis of gold, silver grade and content,
The impurity contents such as arsenic, antimony in gained Gold Concentrate under Normal Pressure are effectively reduced, and realize that the high efficiente callback of antimony and the efficient removal of arsenic are this hairs
Bright key difficulties, and the Major Difficulties containing miscellaneous Gold Concentrate under Normal Pressure melting dust treatment.
Based on problem above, the present invention is first by melting flue dust by a salt Ore Leaching, in acidic environment and chloride ion network
Cooperation makes most arsenic, antimony and soluble component enter leachate under using, and the high price antimony in leachate becomes trivalent through reduction
Antimony obtains liquid (liquid containing arsenic) after high antimony gold concentrate and primary hydrolysis after primary hydrolysis.Secondary salt acidleach is carried out to high antimony gold concentrate
Obtained out containing miscellaneous lower high-grade Gold Concentrate under Normal Pressure and secondary leachate, secondary leachate obtain after hydrolysis high-grade antimony oxychloride and
Liquid after secondary hydrolysis, antimony oxychloride obtain stibium trioxide end product after carrying out dechlorination transition, and liquid is obtained through being concentrated by evaporation after secondary hydrolysis
Mother liquor and condensed water, the mother liquid obtained secondary leaching for returning to high antimony gold concentrate are evaporated, condensed water is used for the hydrolysis of secondary leachate.
Liquid containing arsenic uses molysite to consolidate arsenic technique and obtains liquid after stable less toxic arsenical ferric arsenate and arsenic removal, and liquid is dense through evaporating after arsenic removal
Mother liquor after contracting is used for the primary leaching of melting flue dust, and evaporation condensed water hydrolyzes solid antimony for once leaching ore pulp.Specifically, knot
Fig. 1 is closed, the integrated conduct method of the invention containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust includes the following steps:
Step 1: the reinforcing salt Ore Leaching of melting flue dust
Hydrochloric acid leachate is added in the acid tolerance response container with heating and stirring device, control concentration of hydrochloric acid is 2-
8mol/L consolidate mass ratio 3:1-8:1 by liquid under stirring condition and melting flue dust, 20-85 DEG C of extraction temperature of control, leaching is added
0.5-4h.Above-mentioned concentration of hydrochloric acid and liquid consolidate mass ratio and need whole consideration, to guarantee that the total amount of hydrogen ion and chloride ion meets leaching
It requires, wherein although higher concentration of hydrochloric acid and liquid, which consolidate mass ratio, is conducive to arsenic, antimony and foreign ion, but also will increase simultaneously out
The water consumption of sequential hydrolysis, to increase production cost.
The present invention is by the way that concentration of hydrochloric acid, liquid stereoplasm amount, when extraction temperature is optimized, to be conducive to accelerate
The dissolution and diffusion velocity of ion, while improving the solubility of different kinds of ions, and reduce extraction time, so can guarantee arsenic,
The abundant leaching of antimony and foreign ion, and water consumption and time when can reduce sequential hydrolysis, make to leach cost and obtain effectively
It reduces.
Step 2: leaching the reduction of high price antimony in ore pulp and hydrolyzing solid antimony
It is above-mentioned to maintain to leach slurry temperature and leachate consolidates mass ratio after reaction, by quinquevalence antimony in leaching ore pulp
Learn the reducing agent that stoichiometric number is added 1.0-1.2 times, reduction reaction 0.5-2h.Above-mentioned reducing agent can be gone back for iron, zinc, antimony etc.
Former Sb5+Metal simple-substance, preferred simple substance antimony, simple substance antimony is in reduction Sb5+System contaminants, and the simple substance antimony being added are not introduced afterwards
Form Sb3+After can be recycled in hydrolytic process.The present invention by optimizing control to the extraction temperature in step 1, and
It maintains to leach slurry temperature in above-mentioned reduction reaction and leachate consolidates mass ratio, be produced on the one hand advantageously reduce
This, is on the other hand conducive to the progress of reduction reaction, and can be effectively reduced the content of lead in the high antimony gold concentrate of subsequent gained.
The water for leaching 1.0-5.0 times of ore pulp total volume is added after reduction reaction, solid antimony 0.5-4h is hydrolyzed, to water
Solution is separated by solid-liquid separation after reaction, obtains high antimony gold concentrate and liquid containing arsenic.Above-mentioned hydrolysis can be tap water with water, industry softens
Water, evaporation condensed water or distilled water select tap water that can reduce production cost since impurity content is higher in ore pulp, and select
With the evaporation condensed water of de- lead liquid, the closed cycle of industrial water may be implemented, prevent discharging of waste liquid, pollute environment.And
Antimony content is high in gained liquid containing arsenic when antimony content when addition water is less in gained liquid containing arsenic is larger compared to water, less water
Amount advantageously reduces the evaporation capacity of subsequent handling, reduces production cost.
It will be hydrolyzed through ore pulp obtained by salt Ore Leaching, the arsenic in ore pulp can be effectively removed, reduce the harm of arsenic,
Then high antimony gold concentrate and liquid containing arsenic (liquid after hydrolysis) are obtained through being separated by solid-liquid separation.Inventor has found in the course of the research, if through
It being first separated by solid-liquid separation after salt Ore Leaching and solid antimony is hydrolyzed again, obtained hydrolysate is higher containing miscellaneous (arsenic, lead, tin, caesium),
To influence the recovering effect of antimony.And solid antimony is first hydrolyzed in the present invention after salt Ore Leaching, is then separated by solid-liquid separation again, by
In the presence for leaching a large amount of superfine-particle ore particles in ore pulp, it can be used as the nucleus for hydrolyzing solid antimony reaction and exist, so as to
The progress for enough promoting hydrolysis advantageously reduces the content of antimony in liquid after hydrolyzing, improves the recovering effect of antimony, and reduce impurity
Content.
It is also desirable to illustrate, your gold such as trace soluble gold, silver easily generated under complicated golden ore concentrate hot conditions
Belong to ion, is easily dispersed in leachate after leaching, and continue to be dispersed in links in leachate treatment process, thus
Permanent material unaccounted for is caused, the rate of recovery of gold, silver is caused to be affected.Therefore, inventor is by many experiments, in hydrochloric acid
It leaches in ore pulp and reduction high price antimony is first carried out using reducing agent, on the one hand+5 valence antimony can be made to be reduced to+trivalent antimony, simultaneously also
To can be dissolved on a small quantity the gold, silver noble metal of effects of ion state, during hydrolyzing solid antimony by fine particles flue dust and
The solid product hydrolyzed to form is adsorbed and is enriched in high antimony gold concentrate, to effectively prevent gold, silver loss.
Step 3: the secondary leaching of high antimony gold concentrate
High antimony gold concentrate carries out secondary Leaching of Antimony by control parameter in step 1, is separated by solid-liquid separation, is obtained after leaching
To containing miscellaneous lower high-grade Gold Concentrate under Normal Pressure and secondary leachate.Soluble impurity is being hydrolyzed into solid antimony process point due to once leaching
From leaching hydrochloric acid dosage can directly be controlled according to the amount of metal of antimony in high antimony gold concentrate.
The present invention uses two-stage leaching technique, and since flue dust passes through one section of salt Ore Leaching, soluble impurity is substantially all
It is dissolved in leachate, is finally separating and is enriched in liquid containing arsenic, the impurity content in high antimony gold concentrate substantially reduces, therefore can be used
Secondary leaching is carried out relative to leaching condition more mild in step 1, the Gold Concentrate under Normal Pressure and gangue mineral of slightly solubility include being gone back
Former a small amount of concentration of precious metal is low containing miscellaneous Gold Concentrate under Normal Pressure, the high-grade aurin so as to recycle to obtain high-grade in Gold Concentrate under Normal Pressure
Mine can be used the traditional handicrafts such as direct cyaniding, the cyanidation gold-extracted method of sulfuric acid baking-acidleach-and directly carry out the noble metals such as gold, silver
Recycling.
Step 4: secondary leachate hydrolysis and the production of stibium trioxide
It will be slowly added in the water of 1-6 times of volume under secondary leachate stirring condition, be slowly stirred lower hydrolysis 0.5-
2h is separated by solid-liquid separation after hydrolysis and obtains liquid and high-grade antimony oxychloride after secondary hydrolysis；Liquid is evaporated after secondary hydrolysis
Concentration, concentrated mother liquor return to the secondary leaching of high antimony gold concentrate, and evaporation condensed water returns to the hydrolysis of secondary leachate, and evaporation capacity
Control with evaporate mother liquor meet secondary salt Ore Leaching, evaporation condensed water meet hydrolysis antimony be advisable.Secondary hydrolysis is used in the present invention
Water can be liquid evaporation condensed water or boiler soft water after distilled water, secondary hydrolysis, wherein it is preferable to use liquid after secondary hydrolysis
Evaporation condensed water, to be advantageously implemented the balanced use of entire technical process water.
The distilled water of 1-3 times of its quality is added in high-grade antimony oxychloride in the reactor that resistance to acid band stirs, and antimony oxychloride is added
PH value of solution is adjusted to 7-9 with alkali, is separated by solid-liquid separation after reacting 1-4h, obtains stibium trioxide product and dechlorination by the transforming agent of quality 0.5-8%
Liquid, liquid is evaporated processing after dechlorination liquid returns secondary hydrolysis.Above-mentioned transforming agent is lauryl sodium sulfate, detergent alkylate sulphur
Any two or three of mixture in sour sodium, EDTA preferably has the combination transforming agent of EDTA, to advantageously form cubic crystal
Type stibium trioxide.Above-mentioned pH adjusting is sodium hydroxide, sodium bicarbonate, ammonium hydroxide, two or more the group in ammonium hydrogen carbonate with alkali
Alkali is closed, wherein the combination alkali with ammonium hydroxide is also beneficial to form the stibium trioxide of cubic.
Step 5: the solid arsenic of the liquid containing arsenic is handled
Liquid containing arsenic is added in the reactor of resistance to acid band stirring, iron chloride or chlorine is added by arsenic iron molar ratio 1:1.05-1.2
Change ferrous iron, be warming up to 40-85 DEG C, oxidant is added and carries out aoxidizing solid arsenic reaction 2-4h, is separated by solid-liquid separation after reaction, obtains arsenic
Liquid after sour scum and solid arsenic；Gu liquid cooling but sinks lead after arsenic, lead concentrate and de- lead liquid are obtained after separation of solid and liquid, de- lead liquid is evaporated
It is concentrated to get evaporation mother liquor and condensed water, evaporation mother liquor returns flue dust and leaches process, and condensed water returns the solid antimony process of hydrolysis, takes off lead liquid and steam
The control of hair amount is advisable with meeting flue dust leaching and hydrolyzing solid antimony system balancing.Wherein, above-mentioned oxidant can be hydrogen peroxide, smelly
Oxygen, chlorine or sodium chlorate is one such or more than one any combination oxidant, wherein select ozone as oxidant not
It introduces system contaminants, break systematic water balance, be conducive to the normal operation of system, and chlorine is selected not introduce as oxidant
System contaminants can be advantageously implemented the physical equilibrium of system with replenishment system chloride ion.
Efficient integrated treatment can be realized to containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust using method of the invention, be effectively ensured
On the basis of the noble metals rate of recovery such as Au, Ag, arsenic, the antimony content in gained Gold Concentrate under Normal Pressure are significantly reduced, obtains stibium trioxide, high-grade gold
The end products such as concentrate, and so that harmful element arsenic is formed the ferric arsenate of high stable, low toxicity, while realizing hydrochloric acid by evaporation mode
Recycling for middle hydrogen ion and chloride ion, is not required to increase new water and leaching agent in principle in system operation, realizes salt
The closed cycle of acid and water.The present invention designs whole flow process and does not generate waste water, and Whote-wet method technique avoids the generation of harmful dust,
The industry problems containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust integrated treatment can effectively be solved.
To further appreciate that the contents of the present invention, now in conjunction with specific embodiment, the present invention is described in detail.
Embodiment 1
The integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust of the present embodiment, includes the following steps:
Step 1: the enhanced leaching of melting flue dust
The hydrochloric acid 500ml of 4mol/L is added in 1L beaker, is put into water-bath and fixes and open stirring, controls water-bath temperature
60 DEG C of degree accurately weighs 100.00g and is slowly added in beaker containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust, leaching 1h, melting flue dust at
Point analysis result such as table 1, in table it can be seen from flue dust to be processed the content of antimony and arsenic it is higher.
Step 2: leaching the reduction of high price antimony in ore pulp and hydrolyzing solid antimony
It is above-mentioned to maintain 60 DEG C of leaching slurry temperature and leachate to consolidate mass ratio after reaction, it is anti-that 1.0g antimony powder is added
After answering 0.5h, above-mentioned ore pulp is transferred in 2L beaker, is slowly added to 1L25 DEG C of tap water, is carried out after hydrolyzing solid antimony reaction 1h
It is separated by solid-liquid separation, obtains high antimony gold concentrate 60.78g and the 1480ml of liquid containing arsenic, high antimony gold concentrate composition analysis result such as table 1, by table 1
As can be seen that can effectively remove the arsenic leached in ore pulp after enhanced leaching, reduction and hydrolyzing solid antimony processing, reduce arsenic and contain
Amount, and in melting flue dust antimony and the noble metals such as gold, silver carry out efficiently concentrating.
Step 3: the secondary leaching of high antimony gold concentrate
Above-mentioned high antimony gold concentrate is added in 500ml beaker, and the hydrochloric acid 250ml of 4mol/L is added, controls under stirring condition
60 DEG C of leaching 1h of extraction temperature, secondary leaching are separated by solid-liquid separation after leaching, are obtained containing miscellaneous lower high-grade Gold Concentrate under Normal Pressure
13.65g and secondary leachate 265ml, high-grade Gold Concentrate under Normal Pressure analyze result such as table 1.It can thus be seen that using the present embodiment
Arsenic, antimony, zinc, lead etc. in gained Gold Concentrate under Normal Pressure can be effectively reduced on the basis of guaranteeing has higher gold and silver recoveries in method
Constituent content, so as to effectively reduce the wasting of resources and environmental pollution.
1 melting flue dust of table and process product analyze result %
Note: Au, Ag unit are g/t
Step 4: the hydrolysis of secondary leachate and the production of stibium trioxide
It will be slowly added in 750ml distilled water under secondary leachate 265ml stirring condition, reacted under the conditions of being slowly stirred
1h is separated by solid-liquid separation after hydrolysis and obtains liquid 1000ml and high-grade antimony oxychloride 48.50g after secondary hydrolysis；Secondary hydrolysis
Liquid, which is evaporated, afterwards is concentrated into 250ml or so, and concentrated mother liquor returns to the secondary leaching of high antimony gold concentrate, collects evaporation condensed water
750ml or so returns to the hydrolysis of secondary leachate of next period.
High-grade antimony oxychloride is added in 200ml beaker, and 100ml distilled water is added, and the dodecane that mass ratio is 1:1:1 is added
Base sodium sulphate, neopelex and EDTA antimony oxychloride amount to 3g, the sodium hydroxide for being 2mol/L with molar ratio 1:1 concentration
And ammonia water mixture, 1h is reacted after adjusting pH values of pulp=7, is separated by solid-liquid separation, after filter cake drying, dechlorination liquid return secondary hydrolysis
Liquid is evaporated processing, obtains stibium trioxide product 37.01g, stibium trioxide composition analysis result such as table 2, in table it can be seen from using this
The method of embodiment can effectively recycle the antimony in flue dust, and the purity of gained stibium trioxide product is relatively high, containing it is miscellaneous compared with
It is few.
2 stibium trioxide product analysis result % of table
Step 5: the solid arsenic of the liquid containing arsenic is handled
1480ml liquid containing arsenic is added in 2L beaker, frerrous chloride is added by arsenic iron molar ratio 1:1.1, is warming up to 85 DEG C,
Be passed through ozone by the total amount of arsenic iron substance and aoxidize solid arsenic reaction 3h, be separated by solid-liquid separation after reaction, obtain arsenic acid scum and
Gu liquid after arsenic, so as to effectively reduce the harm of arsenic.Gu liquid filters after being cooled to 20 DEG C after arsenic, lead concentrate and de- lead are obtained
Liquid, it is 500ml or so that de- lead liquid, which is concentrated by evaporation to mother liquor, and the flue dust for next period leaches, and collects condensed water 980ml or so
Antimony process is consolidated in hydrolysis for next period.
Embodiment 2
The integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure pyrometallurgical smelting flue dust of the present embodiment, includes the following steps:
Step 1: the enhanced leaching of melting flue dust
The hydrochloric acid 500ml of 8mol/L is added in the acid tolerance response container with heating and stirring device, then presses liquid stereoplasm
Amount accurately weighs complicated golden ore concentrate melting flue dust than 8:1 and is slowly added in reaction vessel, controls 40 DEG C of extraction temperature, leaching
2h。
Step 2: leaching the reduction of high price antimony in ore pulp and hydrolyzing solid antimony
It is above-mentioned to maintain to leach slurry temperature and leachate consolidates mass ratio after reaction, pentavalent is added to leaching in ore pulp
After the antimony reaction 0.5h that 1.2 times of antimony stoichiometric number, above-mentioned ore pulp is transferred in beaker, is slowly added to leach ore pulp total volume
4.0 times 25 DEG C of tap water is separated by solid-liquid separation after hydrolyzing solid antimony reaction 2.5h, obtains high antimony gold concentrate and liquid containing arsenic.
Step 3: the secondary leaching of high antimony gold concentrate
Above-mentioned high antimony gold concentrate is added in 500ml beaker, and the hydrochloric acid 250ml of 8mol/L is added, controls under stirring condition
40 DEG C of leaching 1.5h of extraction temperature, secondary leaching are separated by solid-liquid separation after leaching, are obtained containing miscellaneous lower high-grade aurin
Mine and secondary leachate.
Step 4: the hydrolysis of secondary leachate and the production of stibium trioxide
Secondary leachate is slowly added in the distilled water of 6 times of volumes under stirring condition, is reacted under the conditions of being slowly stirred
0.5h is separated by solid-liquid separation after hydrolysis and obtains liquid and high-grade antimony oxychloride after secondary hydrolysis；Liquid is steamed after secondary hydrolysis
Hair concentration, concentrated mother liquor return to the secondary leaching of high antimony gold concentrate, collect evaporation condensed water and return to next period secondary leachate
Hydrolysis.
High-grade antimony oxychloride adds in beaker, and the distilled water and antimony oxychloride quality of 2.5 times of high-grade antimony oxychloride quality is added
2.5% transforming agent, the transforming agent of the present embodiment are the mixing of the lauryl sodium sulfate that mass ratio is 1:1 and EDTA antimony oxychloride
Object, the sodium bicarbonate and ammonia water mixture for being 2.2mol/L with molar ratio 1:1 concentration react 4h after adjusting pH values of pulp=9, carry out
It is separated by solid-liquid separation, liquid is evaporated processing to get stibium trioxide product is arrived after secondary hydrolysis is returned in filter cake drying, dechlorination liquid.
Step 5: the solid arsenic of the liquid containing arsenic is handled
Arsenic liquid will be contained to be added in 2L beaker, iron chloride is added by arsenic iron molar ratio 1:1.2,40 DEG C are warming up to, by arsenic iron object
The total amount of matter is passed through chlorine and carries out aoxidizing solid arsenic reaction 2h, is separated by solid-liquid separation after reaction, obtains liquid after arsenic acid scum and solid arsenic.
Gu liquid filters after being cooled to 20 DEG C after arsenic, obtain containing lead skim and de- lead liquid, de- lead liquid is evaporated concentration, mother liquor is for next
The flue dust in period leaches, and antimony process is consolidated in the hydrolysis for collecting condensed water for next period.
Embodiment 3
The integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure pyrometallurgical smelting flue dust of the present embodiment, includes the following steps:
Step 1: the enhanced leaching of melting flue dust
The hydrochloric acid 500ml of 2mol/L is added in the acid tolerance response container with heating and stirring device, then presses liquid stereoplasm
Amount accurately weighs complicated golden ore concentrate melting flue dust than 3:1 and is slowly added in reaction vessel, controls 85 DEG C of extraction temperature, leaching
0.5h。
Step 2: leaching the reduction of high price antimony in ore pulp and hydrolyzing solid antimony
It is above-mentioned to maintain to leach slurry temperature and leachate consolidates mass ratio after reaction, pentavalent is added to leaching in ore pulp
After the antimony reaction 1.5h that 1.1 times of antimony stoichiometric number, above-mentioned ore pulp is transferred in beaker, is slowly added to leach ore pulp total volume
3.0 times 25 DEG C of tap water is separated by solid-liquid separation after hydrolyzing solid antimony reaction 2h, obtains high antimony gold concentrate and liquid containing arsenic.
Step 3: the secondary leaching of high antimony gold concentrate
Above-mentioned high antimony gold concentrate is added in 500ml beaker, and the hydrochloric acid 330ml of 2mol/L is added, controls under stirring condition
82 DEG C of leaching 0.5h of extraction temperature, secondary leaching are separated by solid-liquid separation after leaching, are obtained containing miscellaneous lower high-grade aurin
Mine and secondary leachate.
Step 4: the hydrolysis of secondary leachate and the production of stibium trioxide
Secondary leachate is slowly added in the distilled water of 4 times of volumes under stirring condition, is reacted under the conditions of being slowly stirred
2h is separated by solid-liquid separation after hydrolysis and obtains liquid and high-grade antimony oxychloride after secondary hydrolysis；Liquid is evaporated after secondary hydrolysis
Concentration, concentrated mother liquor return to the secondary leaching of high antimony gold concentrate, collect evaporation condensed water and return to secondary leachate of next period
Hydrolysis.
High-grade antimony oxychloride is added in beaker, and the distilled water of 2 times of high-grade antimony oxychloride quality is added, and antimony oxychloride is added
The transforming agent of quality 8%, the transforming agent of the present embodiment are the neopelex that mass ratio is 1:1.3 and EDTA antimony oxychloride
Mixture, the ammonium hydrogen carbonate and ammonia water mixture for being 1.8mol/L with molar ratio 1:1.5 concentration adjusts anti-behind pH values of pulp=7
3h is answered, is separated by solid-liquid separation, liquid is evaporated processing to get stibium trioxide product is arrived after secondary hydrolysis is returned in filter cake drying, dechlorination liquid.
Step 5: the solid arsenic of the liquid containing arsenic is handled
Arsenic liquid will be contained to be added in 2L beaker, iron chloride is added by arsenic iron molar ratio 1:1.15,52 DEG C are warming up to, by arsenic iron object
The total amount of matter is passed through chlorine and carries out aoxidizing solid arsenic reaction 3.5h, is separated by solid-liquid separation after reaction, after obtaining arsenic acid scum and solid arsenic
Liquid.Gu liquid filters after being cooled to 20 DEG C after arsenic, obtain de- lead liquid being evaporated concentration, mother liquor is used for containing lead skim and de- lead liquid
The flue dust in next period leaches, and antimony process is consolidated in the hydrolysis for collecting condensed water for next period.
Embodiment 4
The integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure pyrometallurgical smelting flue dust of the present embodiment, includes the following steps:
Step 1: the enhanced leaching of melting flue dust
The hydrochloric acid 500ml of 5mol/L is added in the acid tolerance response container with heating and stirring device, then presses liquid stereoplasm
Amount accurately weighs complicated golden ore concentrate melting flue dust than 5:1 and is slowly added in reaction vessel, controls 20 DEG C of extraction temperature, leaching
4h。
Step 2: leaching the reduction of high price antimony in ore pulp and hydrolyzing solid antimony
It is above-mentioned to maintain to leach slurry temperature and leachate consolidates mass ratio after reaction, pentavalent is added to leaching in ore pulp
After the iron reaction 0.5h that 1.2 times of antimony stoichiometric number, above-mentioned ore pulp is transferred in beaker, it is isometric to be slowly added to leaching ore pulp
Distilled water, is separated by solid-liquid separation after hydrolyzing solid antimony reaction 4h, obtains high antimony gold concentrate and liquid containing arsenic.
Step 3: the secondary leaching of high antimony gold concentrate
Above-mentioned high antimony gold concentrate is added in 500ml beaker, and the hydrochloric acid 275ml of 5mol/L is added, controls under stirring condition
20 DEG C of leaching 3h of extraction temperature, secondary leaching are separated by solid-liquid separation after leaching, are obtained containing miscellaneous lower high-grade Gold Concentrate under Normal Pressure
With secondary leachate.
Step 4: the hydrolysis of secondary leachate and the production of stibium trioxide
Secondary leachate is slowly added in the distilled water of 2 times of volumes under stirring condition, is reacted under the conditions of being slowly stirred
0.5h is separated by solid-liquid separation after hydrolysis and obtains liquid and high-grade antimony oxychloride after secondary hydrolysis；Liquid is steamed after secondary hydrolysis
Hair concentration, concentrated mother liquor return to the secondary leaching of high antimony gold concentrate, collect evaporation condensed water and return to next period secondary leachate
Hydrolysis.
High-grade antimony oxychloride is added in beaker, and the distilled water and antimony oxychloride quality of 3 times of high-grade antimony oxychloride quality is added
0.5% transforming agent, the transforming agent of the present embodiment be mass ratio be 1:1:1 lauryl sodium sulfate, dodecyl benzene sulfonic acid
Sodium and EDTA antimony oxychloride, sodium hydroxide, sodium bicarbonate and the ammonia water mixture for being 1.5mol/L with molar ratio 1:1 concentration are adjusted
2.5h is reacted behind pH values of pulp=8, is separated by solid-liquid separation, liquid is evaporated processing after filter cake is dried, dechlorination liquid returns secondary hydrolysis,
Obtain stibium trioxide product.
Step 5: the solid arsenic of the liquid containing arsenic is handled
Arsenic liquid will be contained to be added in 2L beaker, iron chloride is added by arsenic iron molar ratio 1:1.2,70 DEG C are warming up to, by arsenic iron object
The total amount of matter is passed through chlorine and carries out aoxidizing solid arsenic reaction 4h, is separated by solid-liquid separation after reaction, obtains liquid after arsenic acid scum and solid arsenic.
Gu liquid filters after being cooled to 20 DEG C after arsenic, obtain containing lead skim and de- lead liquid, de- lead liquid is evaporated concentration, mother liquor is for next
The flue dust in period leaches, and antimony process is consolidated in the hydrolysis for collecting condensed water for next period.
Embodiment 5
The integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure pyrometallurgical smelting flue dust of the present embodiment, includes the following steps:
Step 1: the enhanced leaching of melting flue dust
The hydrochloric acid 500ml of 3mol/L is added in the acid tolerance response container with heating and stirring device, then presses liquid stereoplasm
Amount accurately weighs complicated golden ore concentrate melting flue dust than 5:1 and is slowly added in reaction vessel, controls 70 DEG C of extraction temperature, leaching
1.5h。
Step 2: leaching the reduction of high price antimony in ore pulp and hydrolyzing solid antimony
It is above-mentioned to maintain to leach slurry temperature and leachate consolidates mass ratio after reaction, addition etc. five into leaching ore pulp
After the zinc reaction 2h of valence antimony stoichiometric number, above-mentioned ore pulp is transferred in beaker, is slowly added to leach 5.0 times of ore pulp total volume
Industrial softened water, is separated by solid-liquid separation after hydrolyzing solid antimony reaction 0.5h, obtains high antimony gold concentrate and liquid containing arsenic.
Step 3: the secondary leaching of high antimony gold concentrate
The hydrochloric acid 200ml of 3mol/L is added to above-mentioned high antimony gold concentrate, 70 DEG C of extraction temperature leachings of control under stirring condition
1h is separated by solid-liquid separation after secondary leaching, is obtained containing miscellaneous lower high-grade Gold Concentrate under Normal Pressure and secondary leachate.
Step 4: the hydrolysis of secondary leachate and the production of stibium trioxide
Secondary leachate is slowly added in isometric distilled water under stirring condition, is reacted under the conditions of being slowly stirred
1.5h is separated by solid-liquid separation after hydrolysis and obtains liquid and high-grade antimony oxychloride after secondary hydrolysis；Liquid is steamed after secondary hydrolysis
Hair concentration, concentrated mother liquor return to the secondary leaching of high antimony gold concentrate, collect evaporation condensed water and return to next period secondary leachate
Hydrolysis.
High-grade antimony oxychloride adds in beaker, and the distilled water and antimony oxychloride quality of the quality such as high-grade antimony oxychloride is added
3.5% transforming agent, the transforming agent of the present embodiment be mass ratio be 1:1:1.2 lauryl sodium sulfate, detergent alkylate sulphur
Sour sodium and EDTA antimony oxychloride, the sodium hydroxide and ammonia water mixture for being 2mol/L with molar ratio 1:1 concentration adjust pH values of pulp=9
After react 4h, be separated by solid-liquid separation, filter cake drying, dechlorination liquid return liquid after secondary hydrolysis and be evaporated processing to get to stibium trioxide
Product.
Step 5: the solid arsenic of the liquid containing arsenic is handled
Arsenic liquid will be contained to be added in 2L beaker, iron chloride is added by arsenic iron molar ratio 1:1.05,85 DEG C are warming up to, by arsenic iron object
The total amount of matter is passed through chlorine and carries out aoxidizing solid arsenic reaction 3h, is separated by solid-liquid separation after reaction, obtains liquid after arsenic acid scum and solid arsenic.
Gu liquid filters after being cooled to 20 DEG C after arsenic, obtain containing lead skim and de- lead liquid, de- lead liquid is evaporated concentration, mother liquor is for next
The flue dust in period leaches, and antimony process is consolidated in the hydrolysis for collecting condensed water for next period.
Claims (11)
1. a kind of integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust, which comprises the following steps:
Step 1: the reinforcing salt Ore Leaching of melting flue dust
Consolidating mass ratio by liquid is that 3:1-8:1 will carry out leaching process in melting flue dust to be processed addition hydrochloric acid leachate；
Step 2: leaching the reduction of high price antimony in ore pulp and hydrolyzing solid antimony
It after Leach reaction, maintains to leach slurry temperature and leachate consolidates mass ratio, quinquevalence antimony is added in ore pulp to leaching
It learns 1.0-1.2 times of stoichiometric number of reducing agent and carries out reduction reaction；Continue addition water after reduction reaction and solid antimony is hydrolyzed, to
It is separated by solid-liquid separation after hydrolysis, obtains high antimony gold concentrate and liquid containing arsenic；
Step 3: the secondary leaching of high antimony gold concentrate
The high antimony gold concentrate of gained is placed in hydrochloric acid leachate and carries out secondary leaching, is separated by solid-liquid separation, is obtained after leaching
Containing miscellaneous lower high-grade Gold Concentrate under Normal Pressure and secondary leachate；
Step 4: secondary leachate hydrolysis and the production of stibium trioxide
Secondary leachate is added to the water and carries out secondary hydrolysis, then liquid and high-grade after being separated by solid-liquid separation and obtaining secondary hydrolysis
Antimony oxychloride；Distilled water and transforming agent are added into gained high-grade antimony oxychloride, and pH value of solution is adjusted to 7-9 and carries out dechlorination transition,
It is separated by solid-liquid separation after reaction 1-4h, obtains stibium trioxide product and dechlorination liquid；
Step 5: the solid arsenic of the liquid containing arsenic is handled
Arsenic liquid will be contained to be placed in reactor, be that iron chloride or frerrous chloride is added in 1:1.05-1.2 by arsenic iron molar ratio, be warming up to
40-85 DEG C, oxidant is then added and carries out aoxidizing solid arsenic reaction 2-4h, is separated by solid-liquid separation after reaction, obtains ferric arsenate
Liquid after slag and solid arsenic.
2. a kind of integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust according to claim 1, it is characterised in that: described
It is 2-8mol/L that concentration of hydrochloric acid is controlled in step 1, and extraction temperature is 20-85 DEG C, extraction time 0.5-4h.
3. a kind of integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust according to claim 1, it is characterised in that: described
Reducing agent in step 2 selects iron, zinc or antimony simple substance, and the reduction reaction time is 0.5-2h.
4. a kind of integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust according to claim 3, it is characterised in that: described
Reducing agent in step 2 is preferably antimony simple substance.
5. a kind of integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust according to claim 1, it is characterised in that: described
The additive amount of water is 1.0-5.0 times for leaching ore pulp total volume, hydrolysis time 0.5-4h when hydrolyzing in step 2；The step
The additive amount of water is 1.0-6.0 times of secondary leachate volume, hydrolysis time 0.5-2h when secondary hydrolysis in four.
6. a kind of integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust according to any one of claims 1-5, special
Sign is: liquid after the secondary hydrolysis of gained in step 4 being evaporated concentration, concentrated mother liquor circulation is used for the two of high antimony gold concentrate
Secondary leaching, evaporation condensed water circulation are used for the hydrolysis of secondary leachate；Dechlorination transition gained dechlorination liquid returns liquid after secondary hydrolysis
It is evaporated processing.
7. a kind of integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust according to any one of claims 1-5, special
Sign is: the transforming agent that dechlorination makes the transition in the step 4 selects lauryl sodium sulfate, neopelex and EDTA
In any two or three of mixture, the additive amount of transforming agent is the 0.5-8% of antimony oxychloride quality, and the additive amount of water is height
1-3 times of grade antimony oxychloride quality.
8. a kind of integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust according to claim 7, it is characterised in that: described
PH is adjusted using the two or more combination alkali in sodium hydroxide, sodium bicarbonate, ammonium hydroxide and ammonium hydrogen carbonate in step 4.
9. a kind of integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust according to claim 8, it is characterised in that: described
The transforming agent that dechlorination makes the transition in step 4 selects the combination transforming agent comprising EDTA, and using the combination alkali containing ammonium hydroxide to high-grade
The pH value of antimony oxychloride solution is adjusted.
10. a kind of integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust according to any one of claims 1-5, special
Sign is: liquid after the solid arsenic of gained in step 5 being carried out cooling heavy lead, lead concentrate and de- lead liquid are obtained after separation of solid and liquid, by de- lead
Liquid, which is evaporated, is concentrated to get evaporation mother liquor and condensed water, and evaporation mother liquor returns to flue dust and leaches process, and it is solid that condensed water returns to hydrolysis
Antimony process.
11. a kind of integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust according to claim 10, it is characterised in that: step
Oxidant in rapid five selects any combination oxidant of one or more of hydrogen peroxide, ozone, chlorine and sodium chlorate.
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| CN109402410B (en) * | 2018-08-10 | 2020-09-22 | 安徽工业大学 | Method for enriching precious metals through iron matte acid slag pretreatment |
| CN109022816A (en) * | 2018-08-24 | 2018-12-18 | 淄博淦达环保科技有限公司 | The leaching liquid and extract technology of remaining lead in a kind of lead ore |
| CN109173340B (en) * | 2018-11-08 | 2020-11-17 | 中南大学 | Method for removing chlorine from strong acidic solution by adsorption |
| CN110016575B (en) * | 2019-04-22 | 2020-03-13 | 中南大学 | Antimony sulfide concentrate smelting process |
| CN111041239A (en) * | 2019-11-08 | 2020-04-21 | 西部黄金伊犁有限责任公司 | Arsenic removal method for high-arsenic waste acid derived from pyrometallurgy of gold concentrate |
| CN113499851B (en) * | 2021-07-10 | 2022-07-19 | 南昌航空大学 | Combined beneficiation method for recycling superfine feldspar ore concentrate from sodium-potassium feldspar ore washing mud residue |
| CN115572832B (en) * | 2022-10-24 | 2023-09-08 | 福建华荣鑫业环保科技有限公司 | Method for treating Gao Jingao silver material containing copper, antimony, tin and lead |
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