CN108034831A - 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
- CN108034831A CN108034831A CN201810033731.4A CN201810033731A CN108034831A CN 108034831 A CN108034831 A CN 108034831A CN 201810033731 A CN201810033731 A CN 201810033731A CN 108034831 A CN108034831 A CN 108034831A
- Authority
- CN
- China
- Prior art keywords
- antimony
- liquid
- flue dust
- gold concentrate
- arsenic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012141 concentrate Substances 0.000 title claims abstract description 137
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 110
- 239000010931 gold Substances 0.000 title claims abstract description 110
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 108
- 239000003500 flue dust Substances 0.000 title claims abstract description 98
- 238000000034 method Methods 0.000 title claims abstract description 98
- 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 180
- 229910052787 antimony Inorganic materials 0.000 claims abstract description 113
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims abstract description 110
- 229910052785 arsenic Inorganic materials 0.000 claims abstract description 110
- 238000002386 leaching Methods 0.000 claims abstract description 106
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims abstract description 104
- 239000007787 solid Substances 0.000 claims abstract description 104
- 230000007062 hydrolysis Effects 0.000 claims abstract description 102
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 102
- 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 36
- 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 40
- 230000008569 process Effects 0.000 claims description 30
- 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
- 238000012545 processing Methods 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
- 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
- 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
- 239000000654 additive Substances 0.000 claims description 8
- 230000000996 additive effect Effects 0.000 claims description 8
- 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 7
- 239000003638 chemical reducing agent Substances 0.000 claims description 7
- 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
- 230000001186 cumulative effect Effects 0.000 claims description 6
- 229910052725 zinc Inorganic materials 0.000 claims description 6
- 239000011701 zinc Substances 0.000 claims description 6
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 5
- 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
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 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
- 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
- 238000001816 cooling Methods 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 230000002000 scavenging effect Effects 0.000 claims description 2
- BMSYAGRCQOYYMZ-UHFFFAOYSA-N [As].[As] Chemical compound [As].[As] BMSYAGRCQOYYMZ-UHFFFAOYSA-N 0.000 claims 1
- 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
- 230000003301 hydrolyzing effect Effects 0.000 abstract description 10
- 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
- 235000011114 ammonium hydroxide Nutrition 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
- 238000004458 analytical method Methods 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
- -1 ore deposit Inorganic materials 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
- 241000370738 Chlorion Species 0.000 description 4
- 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
- 238000005516 engineering process Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- 229910052708 sodium Inorganic materials 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
- 235000019504 cigarettes Nutrition 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 239000003599 detergent Substances 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
- 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
- 238000004064 recycling Methods 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
- 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
- 230000008901 benefit Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- SNRUBQQJIBEYMU-UHFFFAOYSA-N dodecane Chemical compound CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 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
- 229910001379 sodium hypophosphite Inorganic materials 0.000 description 2
- 239000012265 solid product 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
- 241001417490 Sillaginidae Species 0.000 description 1
- KEAYESYHFKHZAL-UHFFFAOYSA-N Sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 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
- 239000012295 chemical reaction liquid Substances 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
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging 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
- 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
- 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
- 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
- 239000002699 waste material Substances 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 method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust, belong to noble metal pyrometallurgical smelting technical field.The integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust of the present 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 relatively low 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 consolidates arsenic technique using molysite and obtains stablizing liquid after less toxic arsenical ferric arsenate and arsenic removal.Method using the present invention can be such that noble metal antimony therein is effectively recycled, be cured harmful element arsenic, so as to solve the industry problems that As and Sb flue dust is difficult to handle to being handled containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust.
Description
Technical field
The invention belongs to noble metal pyrometallurgical smelting technical field, and in particular to divide from containing miscellaneous Gold Concentrate under Normal Pressure pyrometallurgical smelting flue dust
From Gold Concentrate under Normal Pressure, the technique for recycling valuable metal antimony, harmless treatment toxic element arsenic.
Background technology
It is difficult aurosulfo ore deposit that China's gold resource, which there are about 30%, and it is in fine particles disseminated that gold is main 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；It is in addition, carbon containing
The gold minerals such as ore deposit, antimony ore deposit and telluride ore deposit cause the hydrometallurgic recovery rate of gold due to " robbing gold " effect of carbon or the parcel of non-ferrous metal
It is relatively low.Report on studying difficult-treating gold mine is more, mainly there is two kinds of techniques of wet method and pyrogenic process.
Wherein, wet processing is mainly urged using multistage Cyanide Leaching, pressure oxidation leaching, chloride oxidation leaching, nitric acid
The methods of changing Oxidation Leaching is pre-processed or directly improves 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 since gained removal of impurities Gold Concentrate under Normal Pressure gold recovery improves
Work, separating obtained impurity element disposal technology require the reasons such as high, expense is larger, cause commercial Application to be 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 whole technological process in final step
Receive, system overstocks that the time is longer, business finance cost is overweight and can not large-scale application.Therefore, containing miscellaneous Gold Concentrate under Normal Pressure pyrometallurgical smelting
Technique, due to having the advantages that adaptability to raw material is strong, equipment easily maximizes and automated control, waste water yield are less and in industry
Change and have overwhelming superiority in processing procedure.
During the pyrometallurgical smelting containing miscellaneous Gold Concentrate under Normal Pressure, the fine particles complexity flue dust production of Gold Concentrate under Normal Pressure treating capacity 1-3% there are about
Raw, for the flue dust in addition to containing certain gold, silver noble metal, its 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 also containing the not sufficiently reactive fine particles mineral grain in part.Some Enterprises are to melting cigarette
Dirt is handled using the directly mode of melting down, and substantial amounts of flue dust returns to production procedure and is easy to cause impurity content of the system accumulation rise, stove
The problems such as condition deteriorates, effective treating capacity declines and effectively production cost raises.Therefore, containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust valuable element
Synthetical recovery and the appropriate disposal of harmful element become and influence the important prerequisite that thermal process runs well.
At present, the report on non-ferrous metal copper smelting smoke dust, lead-zinc smelting dust comprehensive processing technique, smoke is more, and part is
Through carrying out industrial experiment or into industrialization phase.Such as, Central South University Guo Xue benefits et al. have 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 in alkaline conditions, obtains antimony concentrate and contains
Arsenic liquid, liquid containing arsenic further produce natrium arsenicum technique.Zhang Xu et al. reports (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, arsenic and antimony is respectively 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, and elemental arsenic is obtained using sodium hypophosphite reducing leaching liquid,
So as to fulfill 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 directed to different raw material sources designs and be suitable for fixing
The technological process 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 due in its handled flue dust noble metal gold and silver content it is less, do not consider the enriching and recovering of noble metal, therefore above-mentioned wet method
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 thing phase etc. and non-ferrous metal
Smelt gained flue dust to differ greatly, the processing method of flue dust is not particularly suited for melting containing miscellaneous Gold Concentrate under Normal Pressure pyrogenic process obtained by non-ferrous metal metallurgy
Refine the processing of flue dust.And it is less on the report containing miscellaneous Gold Concentrate under Normal Pressure pyrometallurgical smelting dust treatment technique at present, such as the part flue dust
Do not disposed properly, will influence 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 disposal of melting flue dust, is important step and basic guarantee that complicated golden ore concentrate pyrometallurgical smelting technique is able to normal operation.
The content of the invention
1. technical problems to be solved by the inivention
It is an object of the invention to overcome in the prior art to be difficult to containing miscellaneous Gold Concentrate under Normal Pressure pyrometallurgical smelting flue dust effectively being located
Reason, so as to cause the deficiency of the valuable element wasting of resources and problem of environmental pollution, there is provided one kind contains miscellaneous Gold Concentrate under Normal Pressure melting flue dust
Integrated conduct method.Your gold therein can be made to being handled containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust for method using the present invention
Belong to antimony effectively to be recycled, cured harmful element arsenic, so as to solve the industry problems that As and Sb flue dust is difficult to handle.
2. technical solution
To reach above-mentioned purpose, technical solution provided by the invention is：
A kind of integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust of the present invention, comprises the following steps：
Step 1: the reinforcing salt Ore Leaching of melting flue dust
Under stirring condition, consolidate mass ratio by liquid as 3:1-8:1 adds hydrochloric acid leachate into pending melting flue dust carries out
Leaching process；
Step 2: leach reduction and the solid antimony of hydrolysis of high price antimony in ore pulp
After Leach reaction, maintain 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, treats to carry out separation of solid and liquid 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, separation of solid and liquid is carried out after leaching,
Obtain that containing miscellaneous relatively low high-grade Gold Concentrate under Normal Pressure and secondary leachate (scavenging solution containing antimony), wherein high-grade Gold Concentrate under Normal Pressure tradition can be used
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 separation of solid and liquid obtains 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, carries out separation of solid and liquid after reacting 1-4h, obtains stibium trioxide product and dechlorination liquid；
Step 5: the solid arsenic processing of the liquid containing arsenic
Arsenic liquid will be contained to be placed in reactor, be 1 by arsenic iron molar ratio：1.05-1.2 adding iron chloride or frerrous chloride, rise
Then temperature adds oxidant and carries out aoxidizing solid arsenic reaction 2-4h, carry out separation of solid and liquid 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, is preferably antimony simple substance, and reduction is anti-
It is 0.5-2h between seasonable.
Further, the additive amount of water is leaches 1.0-5.0 times of ore pulp cumulative volume when being hydrolyzed in the step 2, water
The solution time is 0.5-4h；The additive amount of water is 1.0-6.0 times of secondary leachate volume during secondary hydrolysis in the step 4, water
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 used for height
The secondary leaching of antimony gold concentrate, hydrolysis of the evaporation condensed water circulation for 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 use sodium hydroxide, sodium acid carbonate, ammonium hydroxide and ammonium hydrogen carbonate in two kinds 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 for including 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 carried out cooling down heavy lead, obtained after separation of solid and liquid lead concentrate and
De- lead liquid, de- lead liquid is evaporated and is concentrated to give evaporation mother liquor and condensed water, 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
Any combination oxidant above.
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, reduction and the solid antimony of hydrolysis of high price antimony in leaching ore pulp is then carried out, so as to be removed through separation of solid and liquid
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, method using the present invention can handle the complicated golden ore concentrate melting flue dust of different arsenic, antimony content,
It is effectively ensured on the basis of gold and silver recoveries, synthetical recovery antimony forms stibium trioxide product, and cures 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, its technological process is short, using once
Leaching ore pulp direct hydrolysis consolidates antimony and separates foreign ion at the same time, obtains containing miscellaneous relatively low high antimony gold concentrate, is conducive to produce Gao Pin
Matter stibium trioxide product, high-grade Gold Concentrate under Normal Pressure can be directly obtained after the high secondary leaching of antimony gold concentrate, which can use and pass
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 separation of solid and liquid is carried out, due to the presence of a large amount of superfine-particle ore particles in ore pulp, the solid antimony of hydrolysis can be used as
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, carries out once to leaching ore pulp
First high price antimony is reduced before hydrolysis, so as to which the gold, silver noble metal of effects of ion state will be dissolved on a small quantity,
Adsorbed and be enriched in high antimony gold concentrate by fine particles flue dust and the solid product hydrolyzed to form during the solid antimony of hydrolysis, avoid
Gold, silver losses, while also help the follow-up 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 ferric arsenate product that low toxicity is stablized, thus greatly reduces the harm of arsenic, while liquid recycles weight using crystallisation by cooling method after solid arsenic
Metallic lead, so that multiple element is effectively recycled and handled, reduces the wasting of resources.
(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 for being used for high antimony gold concentrate after leaching agent regeneration of hydrochloric acid, the condensed water evaporated is used to hydrolyze antimony, takes off lead liquid
It is used for flue dust leaching after making leaching agent regeneration of hydrochloric acid by evaporation, obtained condensed water is used to hydrolyze solid antimony, passes through evaporation technology
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 produces, and non-wastewater discharge, operating environment are friendly, environmentally protective, easy to commercial introduction application.
Brief description of the drawings
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 present invention.
Embodiment
In the pyrometallurgical smelting technique containing miscellaneous Gold Concentrate under Normal Pressure, in addition to output is without miscellaneous Gold Concentrate under Normal Pressure and smelting slag, it can not keep away
Produce substantial amounts of melting flue dust with exempting from, so that the loss of the valuable metals such as gold, silver, antimony on the one hand can be caused, on the other hand can also
Serious environmental pollution is caused, arsenic especially therein has larger toxicity.Usually all it is directly will in currently available technology
Above-mentioned melting flue dust carries out melting down use, so that cause impurity content of the system accumulation rise, the working of a furnace to deteriorate, 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
All it is that non-ferrous metal pyrometallurgical smelting flue dust is handled using alkali leaching mode, 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 being effectively treated not containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust primarily directed to using existing method
Foot, and provide a kind of simple 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, ensure 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 Gold Concentrate under Normal Pressure obtained by effectively reducing, 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 sour environment and chlorion network
Cooperation makes most arsenic, antimony and soluble component enter leachate under using, and the high price antimony in leachate becomes trivalent through reducing
Antimony, liquid (liquid containing arsenic) after high antimony gold concentrate is obtained after once hydrolyzing and is once hydrolyzed.Secondary salt acidleach is carried out to high antimony gold concentrate
Go out to obtain containing miscellaneous relatively low high-grade Gold Concentrate under Normal Pressure and secondary leachate, secondary leachate obtained 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 consolidates arsenic technique using molysite and obtains stablizing liquid after 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 once leaching of melting flue dust, and evaporation condensed water is used to once leach the solid antimony of ore pulp hydrolysis.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, it is 2- to control concentration of hydrochloric acid
8mol/L, consolidates mass ratio 3 under stirring condition by liquid:1-8:1 adds melting flue dust, controls 20-85 DEG C of extraction temperature, leaching
0.5-4h.Above-mentioned concentration of hydrochloric acid and liquid, which consolidate mass ratio, needs overall consideration, to ensure that the total amount of hydrogen ion and chlorion meets leaching
Go out requirement, wherein although higher concentration of hydrochloric acid and liquid, which consolidate mass ratio, is conducive to arsenic, antimony and foreign ion, but can also increase at the same time
The water consumption of sequential hydrolysis, so as to increase production cost.
The present invention is by the way that to concentration of hydrochloric acid, liquid stereoplasm amount, when extraction temperature optimizes, so as to be conducive to accelerate
The dissolving of ion and diffusion velocity, while improve the solubility of different kinds of ions, and reduce extraction time, so can ensure arsenic,
The abundant leaching of antimony and foreign ion, and water consumption when can reduce sequential hydrolysis and time, make leaching cost obtain effectively
Reduce.
Step 2: leach reduction and the solid antimony of hydrolysis of high price antimony in ore pulp
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 adds 1.0-1.2 times, reduction reaction 0.5-2h.Above-mentioned reducing agent can be that iron, zinc, antimony etc. can be also
Former Sb5+Metal simple-substance, preferred simple substance antimony, simple substance antimony is in reduction Sb5+System contaminants, and the simple substance antimony 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
Maintain to leach slurry temperature in above-mentioned reduction reaction and leachate consolidates mass ratio, be produced into so as on the one hand advantageously reduce
This, is on the other hand conducive to the progress of reduction reaction, and can effectively reduce the content of lead in the follow-up high antimony gold concentrate of gained.
The water for leaching 1.0-5.0 times of ore pulp cumulative volume is added after reduction reaction, solid antimony 0.5-4h is hydrolyzed, treats water
Solution separation of solid and liquid after reaction, obtains high antimony gold concentrate and liquid containing arsenic.Above-mentioned hydrolysis water can be tap water, industry softening
Water, evaporation condensed water or distilled water, since impurity content is higher in ore pulp, select tap water to reduce production cost, and select
With the evaporation condensed water of de- lead liquid, it is possible to achieve the closed cycle of industrial water, prevents discharging of waste liquid, pollutes 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.
Processing will be hydrolyzed through ore pulp obtained by salt Ore Leaching, and can effectively remove the arsenic in ore pulp, reduce the harm of arsenic,
Then high antimony gold concentrate and liquid containing arsenic (liquid after hydrolysis) are obtained through separation of solid and liquid.Inventor has found in the course of the research, if through
Separation of solid and liquid first being carried out after salt Ore Leaching solid antimony is hydrolyzed again, obtained hydrolysate is higher containing miscellaneous (arsenic, lead, tin, caesium),
So as to influence the recovering effect of antimony.And solid antimony is first hydrolyzed in the present invention after salt Ore Leaching, separation of solid and liquid is then carried out again, by
In the presence for leaching a large amount of superfine-particle ore particles in ore pulp, can exist as the nucleus of the solid antimony reaction of hydrolysis, so as to
Enough promote the progress of hydrolysis, advantageously reduce the content of antimony in liquid after hydrolyzing, improve 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, be easily dispersed in after leaching in leachate, and continue in leachate processing procedure to be dispersed in links, so that
Permanent material unaccounted for is caused, causes the rate of recovery of gold, silver to be affected.Therefore, inventor is by many experiments, in hydrochloric acid
Leach in ore pulp and reduction high price antimony is first carried out using reducing agent, so as on the one hand+5 valency antimony can be made to be reduced to+trivalent antimony, at the same time also
To can on a small quantity be dissolved in the gold, silver noble metal of effects of ion state, during the solid antimony of hydrolysis by fine particles flue dust and
The solid product hydrolyzed to form is adsorbed and is enriched in high antimony gold concentrate, so as to effectively prevent gold, silver loss.
Step 3: the secondary leaching of high antimony gold concentrate
High antimony gold concentrate presses control parameter in step 1 and carries out secondary Leaching of Antimony, carries out separation of solid and liquid after leaching, obtains
To containing miscellaneous relatively low high-grade Gold Concentrate under Normal Pressure and secondary leachate.Due to once leaching soluble impurity in the solid antimony process point of hydrolysis
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 use
Secondary leaching is carried out relative to leaching condition more gentle 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 in Gold Concentrate under Normal Pressure, and so as to recycle to obtain, high-grade is low contains miscellaneous Gold Concentrate under Normal Pressure, the high-grade aurin
Ore deposit can use the traditional handicrafts such as direct cyaniding, sulfuric acid baking-acidleach-cyanidation gold-extracted method directly to 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 under secondary leachate stirring condition in the water of 1-6 times of volume, be slowly stirred lower hydrolysis 0.5-
2h, separation of solid and liquid obtains liquid and high-grade antimony oxychloride after secondary hydrolysis after hydrolysis；Liquid is evaporated after secondary hydrolysis
Concentration, the secondary leaching of the high antimony gold concentrate of concentrated mother liquor return, the hydrolysis of the secondary leachate of evaporation condensed water return, 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 preferably using liquid after secondary hydrolysis
Evaporation condensed water, so as to be advantageously implemented the balanced use of whole technical process water.
High-grade antimony oxychloride adds the distilled water of 1-3 times of its quality in the reactor that resistance to acid band stirs, and adds antimony oxychloride
The transforming agent of quality 0.5-8%, is adjusted to 7-9 by pH value of solution with alkali, reacts separation of solid and liquid after 1-4h, obtain stibium trioxide product and dechlorination
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, the combination transforming agent preferably with EDTA, so as to advantageously form cubic crystal
Type stibium trioxide.Above-mentioned pH adjustings are with two or more the group that alkali is in sodium hydroxide, sodium acid carbonate, ammonium hydroxide, ammonium hydrogen carbonate
Alkali is closed, wherein the combination alkali with ammonium hydroxide is also beneficial to be formed the stibium trioxide of cubic.
Step 5: the solid arsenic processing of the liquid containing arsenic
Liquid containing arsenic is added in the reactor of resistance to acid band stirring, by arsenic iron molar ratio 1：1.05-1.2 add iron chloride or chlorine
Change ferrous iron, be warming up to 40-85 DEG C, add oxidant and carry out aoxidizing solid arsenic reaction 2-4h, separation of solid and liquid, obtains arsenic after reaction
Liquid after sour scum and solid arsenic；Gu liquid cools down heavy lead after arsenic, lead concentrate and de- lead liquid are obtained after separation of solid and liquid, de- lead liquid is evaporated
Evaporation mother liquor and condensed water are concentrated to give, 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
To meet flue dust leaching and hydrolysis, antimony system balancing is advisable admittedly for the control of hair amount.Wherein, above-mentioned oxidant can be hydrogen peroxide, smelly
Oxygen, chlorine or sodium chlorate one or more kinds of any combination oxidant therein, wherein select ozone as oxidant not
Introduce system contaminants, do not break systematic water balance, be conducive to the normal operation of system, and select chlorine not introduced as oxidant
System contaminants, can be advantageously implemented the physical equilibrium of system with replenishment system chlorion.
Method using the present invention can be effectively ensured to realizing efficient integrated treatment containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust
On the basis of the noble metal rate of recovery such as Au, Ag, arsenic, 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 harmful element arsenic is formed high stable, the ferric arsenate of low toxicity, while hydrochloric acid is realized by evaporation mode
Middle hydrogen ion and chlorion recycle, and are not required to increase new water and leaching agent in principle in system operation, realize salt
The closed cycle of acid and water.Present invention design whole flow process does not produce 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 present disclosure, 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 beakers, is put into water-bath and fixes and open stirring, controls water-bath temperature
Degree 60 DEG C, accurately weigh 100.00g and be slowly added to containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust in beaker, leaching 1h, melting flue dust into
Point analysis result such as table 1, in table it can be seen from pending flue dust the content of antimony and arsenic it is higher.
Step 2: leach reduction and the solid antimony of hydrolysis of high price antimony in ore pulp
The above-mentioned leaching slurry temperature and leachate for after reaction, maintaining 60 DEG C consolidate mass ratio, and addition 1.0g antimony powders are anti-
After answering 0.5h, above-mentioned ore pulp is transferred in 2L beakers, is slowly added to 1L25 DEG C of tap water, is carried out after hydrolyzing solid antimony reaction 1h
Separation of solid and liquid, 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 after the solid antimony processing of enhanced leaching, reduction and hydrolysis, the arsenic leached in ore pulp can be effectively removed, arsenic is reduced and contains
Amount, and efficiently concentrating is carried out to noble metals such as the antimony in melting flue dust and gold, silver.
Step 3: the secondary leaching of high antimony gold concentrate
Above-mentioned high antimony gold concentrate is added in 500ml beakers, is added the hydrochloric acid 250ml of 4mol/L, is controlled under stirring condition
60 DEG C of leaching 1h of extraction temperature, secondary leaching carry out separation of solid and liquid after leaching, obtain containing miscellaneous relatively low high-grade Gold Concentrate under Normal Pressure
13.65g and secondary leachate 265ml, high-grade Gold Concentrate under Normal Pressure analysis result such as table 1.It can thus be seen that using the present embodiment
Method can be on the basis of ensureing to have higher gold and silver recoveries, arsenic, antimony, zinc, lead effectively in reduction gained Gold Concentrate under Normal Pressure etc.
Constituent content, so as to effectively reduce the wasting of resources and environmental pollution.
1 melting flue dust of table and process product analysis 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 conditions, reacted under the conditions of being slowly stirred
1h, separation of solid and liquid obtains liquid 1000ml and high-grade antimony oxychloride 48.50g after secondary hydrolysis after 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 cycle.
High-grade antimony oxychloride is added in 200ml beakers, adds 100ml distilled water, and it is 1 to add mass ratio:1:1 dodecane
Base sodium sulphate, neopelex and EDTA antimony oxychlorides amount to 3g, with molar ratio 1:1 concentration is the sodium hydroxide of 2mol/L
And ammonia water mixture, 1h is reacted after adjusting pH values of pulp=7, separation of solid and liquid is carried out, 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 of a relatively high, containing it is miscellaneous compared with
It is few.
2 stibium trioxide product analysis result % of table
Step 5: the solid arsenic processing of the liquid containing arsenic
1480ml liquid containing arsenic is added in 2L beakers, by arsenic iron molar ratio 1：1.1 add frerrous chloride, are warming up to 85 DEG C,
Be passed through ozone by the total amount of arsenic iron substance and aoxidize solid arsenic reaction 3h, after reaction separation of solid and liquid, 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 cycle leaches, and collects condensed water 980ml or so
Antimony process is consolidated in hydrolysis for next cycle.
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 by liquid stereoplasm
Measure ratio 8:1, which accurately weighs complicated golden ore concentrate melting flue dust, is slowly added in reaction vessel, controls 40 DEG C of extraction temperature, leaching
2h。
Step 2: leach reduction and the solid antimony of hydrolysis of high price antimony in ore pulp
It is above-mentioned to maintain to leach slurry temperature and leachate consolidates mass ratio after reaction, add pentavalent 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 cumulative volume
4.0 times 25 DEG C of tap water, carries out separation of solid and liquid 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 beakers, is added the hydrochloric acid 250ml of 8mol/L, is controlled under stirring condition
40 DEG C of leaching 1.5h of extraction temperature, secondary leaching carry out separation of solid and liquid after leaching, obtain containing miscellaneous relatively low high-grade aurin
Ore deposit and secondary leachate.
Step 4: the hydrolysis of secondary leachate and the production of stibium trioxide
Secondary leachate is slowly added under stirring condition in the distilled water of 6 times of volumes, is reacted under the conditions of being slowly stirred
0.5h, separation of solid and liquid obtains liquid and high-grade antimony oxychloride after secondary hydrolysis after 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 cycle secondary leachate
Hydrolysis.
High-grade antimony oxychloride adds in beaker, and adds the distilled water and antimony oxychloride quality of 2.5 times of high-grade antimony oxychloride quality
2.5% transforming agent, the transforming agent of the present embodiment is that mass ratio is 1:1 lauryl sodium sulfate and the mixing of EDTA antimony oxychlorides
Thing, with molar ratio 1:1 concentration is the sodium acid carbonate and ammonia water mixture of 2.2mol/L, reacts 4h after adjusting pH values of pulp=9, is carried out
Separation of solid and liquid, liquid is evaporated processing after filter cake is dried, dechlorination liquid returns secondary hydrolysis, that is, obtains stibium trioxide product.
Step 5: the solid arsenic processing of the liquid containing arsenic
Arsenic liquid will be contained to add in 2L beakers, by arsenic iron molar ratio 1：1.2 add iron chloride, 40 DEG C are warming up to, by arsenic iron thing
The total amount of matter is passed through chlorine and carries out aoxidizing solid arsenic reaction 2h, after reaction separation of solid and liquid, 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 used for next
The flue dust in cycle leaches, and antimony process is consolidated in the hydrolysis for collecting condensed water for next cycle.
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 by liquid stereoplasm
Measure ratio 3:1, which accurately weighs complicated golden ore concentrate melting flue dust, is slowly added in reaction vessel, controls 85 DEG C of extraction temperature, leaching
0.5h。
Step 2: leach reduction and the solid antimony of hydrolysis of high price antimony in ore pulp
It is above-mentioned to maintain to leach slurry temperature and leachate consolidates mass ratio after reaction, add pentavalent 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 cumulative volume
3.0 times 25 DEG C of tap water, carries out separation of solid and liquid 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 beakers, is added the hydrochloric acid 330ml of 2mol/L, is controlled under stirring condition
82 DEG C of leaching 0.5h of extraction temperature, secondary leaching carry out separation of solid and liquid after leaching, obtain containing miscellaneous relatively low high-grade aurin
Ore deposit and secondary leachate.
Step 4: the hydrolysis of secondary leachate and the production of stibium trioxide
Secondary leachate is slowly added under stirring condition in the distilled water of 4 times of volumes, is reacted under the conditions of being slowly stirred
2h, separation of solid and liquid obtains liquid and high-grade antimony oxychloride after secondary hydrolysis after 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 next cycle secondary leachate
Hydrolysis.
High-grade antimony oxychloride is added in beaker, and adds the distilled water of 2 times of high-grade antimony oxychloride quality, and adds antimony oxychloride
The transforming agent of quality 8%, the transforming agent of the present embodiment is that mass ratio is 1:1.3 neopelex and EDTA antimony oxychlorides
Mixture, with molar ratio 1:1.5 concentration are the ammonium hydrogen carbonate and ammonia water mixture of 1.8mol/L, are adjusted anti-behind pH values of pulp=7
3h is answered, carries out separation of solid and liquid, liquid is evaporated processing after filter cake is dried, dechlorination liquid returns secondary hydrolysis, that is, obtains stibium trioxide product.
Step 5: the solid arsenic processing of the liquid containing arsenic
Arsenic liquid will be contained to add in 2L beakers, by arsenic iron molar ratio 1：1.15 add iron chloride, 52 DEG C are warming up to, by arsenic iron thing
The total amount of matter is passed through chlorine and carries out aoxidizing solid arsenic reaction 3.5h, after reaction separation of solid and liquid, after obtaining arsenic acid scum and solid arsenic
Liquid.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 used for
The flue dust in next cycle leaches, and antimony process is consolidated in the hydrolysis for collecting condensed water for next cycle.
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 by liquid stereoplasm
Measure ratio 5:1, which accurately weighs complicated golden ore concentrate melting flue dust, is slowly added in reaction vessel, controls 20 DEG C of extraction temperature, leaching
4h。
Step 2: leach reduction and the solid antimony of hydrolysis of high price antimony in ore pulp
It is above-mentioned to maintain to leach slurry temperature and leachate consolidates mass ratio after reaction, add pentavalent 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, carries out separation of solid and liquid 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 beakers, is added the hydrochloric acid 275ml of 5mol/L, is controlled under stirring condition
20 DEG C of leaching 3h of extraction temperature, secondary leaching carry out separation of solid and liquid after leaching, obtain containing miscellaneous relatively low 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 under stirring condition in the distilled water of 2 times of volumes, is reacted under the conditions of being slowly stirred
0.5h, separation of solid and liquid obtains liquid and high-grade antimony oxychloride after secondary hydrolysis after 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 cycle secondary leachate
Hydrolysis.
High-grade antimony oxychloride is added in beaker, adds the distilled water and antimony oxychloride quality of 3 times of high-grade antimony oxychloride quality
0.5% transforming agent, the transforming agent of the present embodiment is that mass ratio is 1:1:1 lauryl sodium sulfate, dodecyl benzene sulfonic acid
Sodium and EDTA antimony oxychlorides, with molar ratio 1:1 concentration is sodium hydroxide, sodium acid carbonate and the ammonia water mixture of 1.5mol/L, is adjusted
2.5h is reacted behind pH values of pulp=8, carries out separation of solid and liquid, liquid is evaporated processing after filter cake is dried, dechlorination liquid returns secondary hydrolysis,
Obtain stibium trioxide product.
Step 5: the solid arsenic processing of the liquid containing arsenic
Arsenic liquid will be contained to add in 2L beakers, by arsenic iron molar ratio 1：1.2 add iron chloride, 70 DEG C are warming up to, by arsenic iron thing
The total amount of matter is passed through chlorine and carries out aoxidizing solid arsenic reaction 4h, after reaction separation of solid and liquid, 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 used for next
The flue dust in cycle leaches, and antimony process is consolidated in the hydrolysis for collecting condensed water for next cycle.
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 by liquid stereoplasm
Measure ratio 5:1, which accurately weighs complicated golden ore concentrate melting flue dust, is slowly added in reaction vessel, controls 70 DEG C of extraction temperature, leaching
1.5h。
Step 2: leach reduction and the solid antimony of hydrolysis of high price antimony in ore pulp
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 valency antimony stoichiometric number, above-mentioned ore pulp is transferred in beaker, is slowly added to leach 5.0 times of ore pulp cumulative volume
Industrial softened water, carries out separation of solid and liquid 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 leachings of extraction temperature are controlled under stirring condition
1h, separation of solid and liquid is carried out after secondary leaching, is obtained containing miscellaneous relatively low 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 under stirring condition in isometric distilled water, is reacted under the conditions of being slowly stirred
1.5h, separation of solid and liquid obtains liquid and high-grade antimony oxychloride after secondary hydrolysis after 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 cycle secondary leachate
Hydrolysis.
High-grade antimony oxychloride adds in beaker, and adds the distilled water and antimony oxychloride quality of the quality such as high-grade antimony oxychloride
3.5% transforming agent, the transforming agent of the present embodiment is that mass ratio is 1:1:1.2 lauryl sodium sulfate, detergent alkylate sulphur
Sour sodium and EDTA antimony oxychloride, with molar ratio 1:1 concentration is the sodium hydroxide and ammonia water mixture of 2mol/L, adjusts pH values of pulp=9
After react 4h, carry out separation of solid and liquid, filter cake drying, liquid is evaporated processing after dechlorination liquid returns secondary hydrolysis, that is, obtains stibium trioxide
Product.
Step 5: the solid arsenic processing of the liquid containing arsenic
Arsenic liquid will be contained to add in 2L beakers, by arsenic iron molar ratio 1：1.05 add iron chloride, 85 DEG C are warming up to, by arsenic iron thing
The total amount of matter is passed through chlorine and carries out aoxidizing solid arsenic reaction 3h, after reaction separation of solid and liquid, 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 used for next
The flue dust in cycle leaches, and antimony process is consolidated in the hydrolysis for collecting condensed water for next cycle.
Claims (10)
1. a kind of integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust, it is characterised in that comprise the following steps：
Step 1: the reinforcing salt Ore Leaching of melting flue dust
Consolidate mass ratio by liquid as 3:1-8:1 will carry out leaching process in pending melting flue dust addition hydrochloric acid leachate；
Step 2: leach reduction and the solid antimony of hydrolysis of high price antimony in ore pulp
After Leach reaction, maintain to leach slurry temperature and leachate consolidates mass ratio, quinquevalence antimony is added in ore pulp to leaching
The reducing agent for learning 1.0-1.2 times of stoichiometric number carries out reduction reaction；Continue addition water after reduction reaction and solid antimony is hydrolyzed, treat
Separation of solid and liquid is carried out 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, separation of solid and liquid is carried out after leaching, is obtained
Containing miscellaneous relatively low high-grade Gold Concentrate under Normal Pressure and secondary leachate (scavenging solution containing antimony)；
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 separation of solid and liquid obtains 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,
Separation of solid and liquid is carried out after reaction 1-4h, obtains stibium trioxide product and dechlorination liquid；
Step 5: the solid arsenic processing of the liquid containing arsenic
Arsenic liquid will be contained to be placed in reactor, be 1 by arsenic iron molar ratio：1.05-1.2 adding iron chloride or frerrous chloride, it is warming up to
40-85 DEG C, then add oxidant and carry out aoxidizing solid arsenic reaction 2-4h, carry out separation of solid and liquid after reaction, obtain ferric arsenate
Liquid after slag and solid arsenic.
A kind of 2. integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust according to claim 1, it is characterised in that：It is 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.
A kind of 3. integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust according to claim 1, it is characterised in that：It is described
Reducing agent in step 2 selects iron, zinc or antimony simple substance, is preferably antimony simple substance, the reduction reaction time is 0.5-2h.
A kind of 4. integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust according to claim 1, it is characterised in that：It is described
The additive amount of water is leaches 1.0-5.0 times of ore pulp cumulative volume when being hydrolyzed in step 2, hydrolysis time 0.5-4h；The step
The additive amount of water is 1.0-6.0 times of secondary leachate volume during secondary hydrolysis in four, hydrolysis time 0.5-2h.
5. a kind of integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust according to any one of claim 1-4, it is special
Sign is：Liquid after the secondary hydrolysis of gained in step 4 is evaporated concentration, concentrated mother liquor circulation is used for the two of high antimony gold concentrate
Secondary leaching, hydrolysis of the evaporation condensed water circulation for secondary leachate；Dechlorination transition gained dechlorination liquid returns liquid after secondary hydrolysis
It is evaporated processing.
6. a kind of integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust according to any one of claim 1-4, it is 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.
A kind of 7. integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust according to claim 6, it is characterised in that：It is described
In step 4 use sodium hydroxide, sodium acid carbonate, ammonium hydroxide and ammonium hydrogen carbonate in two or more combination alkali to pH into
Row is adjusted.
A kind of 8. integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust according to claim 7, it is characterised in that：It is described
The transforming agent that dechlorination makes the transition in step 4 selects the combination transforming agent for including EDTA, and using the combination alkali containing ammonium hydroxide to high-grade
The pH value of antimony oxychloride solution is adjusted.
9. a kind of integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust according to any one of claim 1-4, it is special
Sign is：Liquid after the solid arsenic of gained in step 5 is carried out cooling down 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 give 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.
A kind of 10. integrated conduct method containing miscellaneous Gold Concentrate under Normal Pressure melting flue dust according to claim 9, it is characterised in that：Step
Oxidant in rapid five selects any combination oxidant more than one or both of hydrogen peroxide, ozone, chlorine and sodium chlorate.
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| 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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