CN105603186B - A kind of technique of efficient selective separation Zinc Content in Zinc Sulphide Concentrate - Google Patents
A kind of technique of efficient selective separation Zinc Content in Zinc Sulphide Concentrate Download PDFInfo
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- CN105603186B CN105603186B CN201610043502.1A CN201610043502A CN105603186B CN 105603186 B CN105603186 B CN 105603186B CN 201610043502 A CN201610043502 A CN 201610043502A CN 105603186 B CN105603186 B CN 105603186B
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- zinc
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- sulfide concentrates
- slag
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- 239000011701 zinc Substances 0.000 title claims abstract description 79
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 67
- 239000012141 concentrate Substances 0.000 title claims abstract description 50
- 239000005083 Zinc sulfide Substances 0.000 title claims abstract description 48
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000000926 separation method Methods 0.000 title claims abstract description 19
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000002386 leaching Methods 0.000 claims abstract description 33
- 229910052984 zinc sulfide Inorganic materials 0.000 claims abstract description 33
- 239000002893 slag Substances 0.000 claims abstract description 22
- 239000002253 acid Substances 0.000 claims abstract description 15
- 239000003792 electrolyte Substances 0.000 claims abstract description 12
- 239000002699 waste material Substances 0.000 claims abstract description 12
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000011084 recovery Methods 0.000 claims abstract description 9
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- 238000001238 wet grinding Methods 0.000 claims abstract description 8
- 229910052785 arsenic Inorganic materials 0.000 claims abstract description 7
- DJHGAFSJWGLOIV-UHFFFAOYSA-N Arsenic acid Chemical compound O[As](O)(O)=O DJHGAFSJWGLOIV-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229940000488 arsenic acid Drugs 0.000 claims abstract description 3
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims abstract description 3
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000010949 copper Substances 0.000 claims description 17
- 238000005516 engineering process Methods 0.000 claims description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 14
- 229910052802 copper Inorganic materials 0.000 claims description 13
- 230000003647 oxidation Effects 0.000 claims description 13
- 238000007254 oxidation reaction Methods 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 238000005868 electrolysis reaction Methods 0.000 claims description 10
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 9
- 239000005864 Sulphur Substances 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 229910052745 lead Inorganic materials 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052709 silver Inorganic materials 0.000 claims description 6
- 238000003723 Smelting Methods 0.000 claims description 5
- 238000009867 copper metallurgy Methods 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 229920005551 calcium lignosulfonate Polymers 0.000 claims description 3
- RYAGRZNBULDMBW-UHFFFAOYSA-L calcium;3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Ca+2].COC1=CC=CC(CC(CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O RYAGRZNBULDMBW-UHFFFAOYSA-L 0.000 claims description 3
- YDEXUEFDPVHGHE-GGMCWBHBSA-L disodium;(2r)-3-(2-hydroxy-3-methoxyphenyl)-2-[2-methoxy-4-(3-sulfonatopropyl)phenoxy]propane-1-sulfonate Chemical compound [Na+].[Na+].COC1=CC=CC(C[C@H](CS([O-])(=O)=O)OC=2C(=CC(CCCS([O-])(=O)=O)=CC=2)OC)=C1O YDEXUEFDPVHGHE-GGMCWBHBSA-L 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 229910052924 anglesite Inorganic materials 0.000 claims description 2
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000007800 oxidant agent Substances 0.000 claims description 2
- 230000001590 oxidative effect Effects 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 abstract description 5
- 239000002994 raw material Substances 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract 1
- 239000000284 extract Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 description 9
- 238000004070 electrodeposition Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000003556 assay Methods 0.000 description 2
- 238000009854 hydrometallurgy Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 229910001308 Zinc ferrite Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000004965 peroxy acids Chemical class 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- WGEATSXPYVGFCC-UHFFFAOYSA-N zinc ferrite Chemical compound O=[Zn].O=[Fe]O[Fe]=O WGEATSXPYVGFCC-UHFFFAOYSA-N 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
- 229960001763 zinc sulfate Drugs 0.000 description 1
- 229910000368 zinc sulfate Inorganic materials 0.000 description 1
- 229910000859 α-Fe Inorganic materials 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
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
- C22B3/06—Extraction of metal compounds from ores or concentrates by wet processes by leaching in inorganic acid solutions, e.g. with acids generated in situ; in inorganic salt solutions other than ammonium salt solutions
- C22B3/08—Sulfuric acid, other sulfurated acids or salts thereof
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/16—Electrolytic production, recovery or refining of metals by electrolysis of solutions of zinc, cadmium or mercury
-
- 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
Abstract
The invention discloses a kind of technique of efficient selective separation Zinc Content in Zinc Sulphide Concentrate, it is using zinc sulfide concentrates as raw material, pour into autoclave and leached after being sized mixing after wet-milling with sulfuric acid or waste electrolyte, add regulator A and be passed through pure oxygen, the suitable acid eventually of control, can be such that most Fe, As in zinc sulfide concentrates enter in the form of bloodstone, siderotil and arsenic acid molysite in slag.Leachate directly carries out cyclone electrolytic cell after acid adjustment and extracts zinc therein, can obtain the electric zinc product for meeting national standard；Present invention eliminates traditional cleaning procedure, simplifies technological process and equipment so that technique is simple, easy to operate, and energy consumption reduces, and improves the leaching rate and the rate of recovery of zinc, so as to save resource, reduces cost.
Description
Technical field
The present invention relates to a kind of technique of efficient selective separation Zinc Content in Zinc Sulphide Concentrate, is using oxygen pressure acidleach-eddy flow
Electrolysis processing zinc sulfide concentrates, belong to non-ferrous metal field of hydrometallurgy.
Background technology
The invention belongs to the hydrometallurgical processes of zinc.The processing method overwhelming majority of zinc sulfide concentrates is refined using wet method at present
Zinc technology, traditional technological process are：Zinc sulfide concentrates -- roasting -- sulfuric acid leaching-electrodeposition.This technique is more ripe, the leaching of zinc
Extracting rate is also higher, but needs huge acid making system, and investment is very big；Technological process is also more complicated；Iron dodges zinc in other zinc concentrate
Ore deposit generates a large amount of zinc ferrites in roasting process, and this part zinc ferrite need to use high temperature peracid to leach, and acid consumption is very high, and zinc
Leaching rate it is relatively low；In addition, electrodeposition sink zinc when it is harsh to zinc electrolyte component requirements, therefore there is also suitable during electrodeposition
More technical problems.Therefore, technology of some enterprises using HTHP pure oxygen Oxidation Leaching processing zinc sulfide concentrates, such as
On July 18th, 2012, Chinese invention patent publication number CN102586597A disclose a kind of side of zinc sulfide concentrates pressure leaching
Method, it is to make zinc sulfide concentrates under the acid condition of HTHP, and solution of zinc sulfate and simple substance are obtained by oxygen direct oxidation
Sulphur, so as to eliminate acid making system huge in traditional handicraft, have that to pollute that low, small and zinc the rate of recovery of investment is higher etc. excellent
Point.But gained leachate is using conventional Zinc electrolysis method processing after pressure leaching, because traditional Zinc electrolysis is to electrolyte
Component requirements it is very harsh, so needed before electrodeposition increase cleaning procedure（Except impurity such as Cu, Fe, As）, in purification process
Need to consume a large amount of reagents and take away the zinc of part, cause production cost to increase considerably.
Therefore, the high-efficiency cleaning metallurgical technology for being suitable for handling zinc sulfide concentrates is developed to have important practical significance.
The content of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the invention provides a kind of efficient selective to separate in zinc sulfide concentrates
The technique of zinc, acidleach-cyclone electrolytic cell is pressed to handle zinc sulfide concentrates using oxygen；The technology has environmentally safe, nothing " three wastes "
Discharge；Belong to clean metallurgical technology, strong to adaptability to raw material, flow is simple；Automaticity is high, easy to operate, reagent consumption
Less, running cost is low；The advantages that process intensification, high metal recovery rate.
The technical scheme is that：A kind of technique of efficient selective separation Zinc Content in Zinc Sulphide Concentrate；Zinc sulfide concentrates
Sized mixing after wet-milling with sulfuric acid, be then pumped into autoclave and enter horizontal high voltage acidleach；Leaching is constantly passed through pure oxygen during aoxidizing out, and
Regulator A is added during Oxidation Leaching in autoclave；Control suitable technical indicator；Zn is with Zn in zinc sulfide concentrates2+Form
Into solution, most of sulphur is oxidized to elemental sulfur and is transferred in slag, and Pb is then with PbSO4Form and silver stay in slag；Leaching
Solid-liquor separation is carried out after the completion of going out；Solid-liquor separation is carried out, realizes the initial gross separation of zinc and other valuable elements；Leachate containing zinc
Cyclone electrolytic cell is directly carried out after acid adjustment, the electric zinc product of national standard must be met, leached mud delivers to pyrometallurgical smelting of lead system synthetical recovery
The valuable elements such as Pb, Ag, S, electrolysis waste solution return to autoclave and recycled as leaching solvent.
Further, above-mentioned zinc sulfide concentrates the whole sour pH=1-2 of control, can make zinc sulphide in autoclave Oxidation Leaching
Most Fe, As in concentrate are entered in slag in the form of bloodstone, siderotil and arsenic acid molysite.
Further, the composition of above-mentioned zinc sulfide concentrates is：Zn：30~60%；S：15~38%；As：0.05~0.2%；
Pb：2~8%；Fe：5~20%.
Further, above-mentioned zinc sulfide concentrates after wet-milling granularity in -200 mesh；Above-mentioned zinc sulfide concentrates are in autoclave oxygen
Change and use pure oxygen when leaching as oxidant.
Further, its appropriate technology index is above-mentioned zinc sulfide concentrates during Oxidation Leaching in autoclave：Sulfuric acid concentration
120~180g/L, liquid solid product mass ratio 4~6: 1mL/g, 130~160 DEG C of temperature, oxygen press 0.8~1.4MPa, mixing speed
500~700 r/min, the h of reaction time 1.5~2.5.
Further, described regulator A is calcium lignosulfonate or sodium lignin sulfonate, and its dosage is zinc sulfide concentrates
Adjust the 0.8~1.5% of gross mass。
Further, in above-mentioned high pressure acidleach, the leaching rate of Zinc Content in Zinc Sulphide Concentrate is up to more than 98.5%；Lead, silver etc. have
Valency metal enters slag rate for 100%；Iron, arsenic enter slag rate more than 95%；Sulphur enters slag rate more than 90%.
Further, the above-mentioned leachate containing zinc after acid adjustment as the electrolyte in cyclone electrolytic cell, Zn2+Content is not
Less than 5 g/L.
Further, technical indicator during the above-mentioned progress cyclone electrolytic cell containing zinc lixiviating solution is：Sulfuric acid concentration 80~150
G/L, the V of tank voltage 3.0~3.8, the A/m of current density 800~9002, the h of electrolysing period 36.
Further, above-mentioned when carrying out cyclone electrolytic cell containing zinc lixiviating solution, its electrolytic efficiency is up to 92%.
Further, above-mentioned cyclone electrolytic cell sink zinc after electrolysis waste solution add moderate amount of sulfuric acid return autoclave it is anti-as leachate
It is multiple to use, as Cu in waste electrolyte2+Accumulate it is a certain amount of after by controlling tank voltage to carry out the heavy copper of selectivity obtain black copper slag；Black copper
Slag returns copper metallurgy industry.
The invention provides a kind of new technology for handling zinc sulfide concentrates, the technology has environmentally safe, nothing " three
It is useless " discharge；Belong to clean metallurgical technology, strong to adaptability to raw material, flow is simple；Automaticity is high, easy to operate, reagent disappears
Consumption less, running cost it is low；The advantages that process intensification, high metal recovery rate.The present invention has significant economic benefit and is easy to
Realize industrialization continuous production.
Compared with the prior art, the invention has the advantages that：
1）The present invention uses calcium lignosulfonate or sodium lignin sulfonate, as regulator；Solves sulphur in experimentation
The problem of wrapping up material, the leaching rate of zinc is greatly improved；The leaching rate of zinc of the present invention is more than 98.5%, and the rate of recovery of zinc can
Up to more than 97%；So as to save resource, cost is reduced；
2）The present invention makes the elements such as Pb, Fe, Ag, As in raw material be fixed on leaching by controlling above-mentioned technical conditions
In slag, and Zn is then entered in leachate, realizes the initial gross separation of zinc and other valuable elements；The efficient selective of zinc is reached
Leach；
3）Gained leachate need not increase cleaning procedure after zinc sulfide concentrates of the present invention leach in autoclave, through acid adjustment
Cyclone electrolytic cell is directly carried out afterwards can obtain qualified electric zinc product；Traditional cleaning procedure is eliminated, simplifies technological process
And equipment so that technique is simple, easy to operate；
4）Leachate of the invention containing zinc is after acid adjustment as the electrolyte in cyclone electrolytic cell, Zn2+Content is not less than 5
G/L is with regard to that can obtain qualified electric zinc product, and compared with common zinc electro-deposition, Zn in electrolyte can be greatly lowered in cyclone electrolytic cell2+
Concentration；
5）The present invention contains cyclone electrolytic cell technology used by zinc lixiviating solution, has, electrolysis week insensitive to electrolyte impurity
The features such as phase is short, electrolytic efficiency is high, cost is cheap, good product quality；
6）Electrolysis waste solution is added moderate amount of sulfuric acid return autoclave and made repeatedly as leachate after the heavy zinc of cyclone electrolytic cell of the present invention
With as Cu in waste electrolyte2+Accumulate it is a certain amount of after by controlling tank voltage to carry out the heavy copper of selectivity obtain black copper slag；Black copper slag returns
Copper metallurgy industry.This technique realizes " zero-emission " truly.
Brief description of the drawings
Fig. 1 is the process chart of the present invention.
Embodiment
The present invention is described in detail below in conjunction with the accompanying drawings and with specific embodiment.Accompanying drawing 1 represents a kind of efficient selective separation
The processing step of Zinc Content in Zinc Sulphide Concentrate is：
1. zinc sulfide concentrates are through wet-milling to the mesh of granularity -200；
2. size mixing
Zinc sulfide concentrates, sulfuric acid solution and regulator A are sized mixing in pulp pond together；
Pressure leaching
Slurries are poured into autoclave, are constantly passed through pure oxygen and control condition：The g/L of sulfuric acid concentration 120~280, liquid-solid ratio
4~6: 1,130~160 DEG C of temperature, adjustment and maintenance pressure 1.0~1.4 MPa, the r/min of mixing speed 500~700, reaction
The h of time 1.5~2.5；
4. solid-liquor separation
After the completion of leaching, ore pulp is discharged into autoclave, solid-liquor separation is carried out, send pyrometallurgical smelting of lead system to integrate back leached mud
Receive the valuable elements such as Pb, Ag, S；Leachate enters next process；
5. cyclone electrolytic cell and heavy zinc
Cyclone electrolytic cell system will be sent directly into after acid adjustment containing zinc lixiviating solution obtained by Oxidation Leaching, carries out cyclone electrolytic cell and obtain electric zinc
Product；
6. the processing of electrolysis waste solution
Waste electrolyte returns to autoclave and used as leachate after the heavy zinc of cyclone electrolytic cell, as Cu in waste electrolyte2+Accumulate
Black copper slag can be obtained by controlling tank voltage to carry out the heavy copper of selectivity after a certain amount of, black copper slag returns copper metallurgy industry.Therefore, the technique
The characteristics of with " zero-emission ".
Embodiment 1：
By 500 g zinc sulfide concentrates (Zn 16.58%；As 0.13%；S 31.68%；Pb 3.85%；Ag 26g/t；Fe
12.37%) wet-milling to granularity is less than after 200 mesh and sized mixing with dilute sulfuric acid, is subsequently poured into autoclave, in leaching process constantly
It is passed through pure oxygen and control technology condition：The g/L of sulfuric acid concentration 160, liquid-solid ratio 5: 1,140 DEG C of temperature, adjustment and maintenance pressure 1.2
MPa, the r/min of mixing speed 600, the h of reaction time 2, ore pulp is discharged into autoclave after the completion of Oxidation Leaching, carry out liquid and divide admittedly
From Zn is with Zn2+Into leachate, obtain zinc leaching rate through assay and be up to 98.73%, leached mud returns the recovery of pyrometallurgical smelting of lead system
The valuable elements such as Ag, Pb, S.Cyclone electrolytic cell, control technology condition are directly carried out after acid adjustment containing zinc lixiviating solution：The g/L of acidity 110
, the V of tank voltage 3.5, the A/m of current density 8002, the h of electrolysing period 36；Negative electrode zinc product, cathode zinc founding into after zinc ingot metal its
Purity is 99.996%, meets national standard electricity zinc product quality requirement.
Embodiment 2：
By 500 g zinc sulfide concentrates (Zn 51.58%；As 0.15%；S 28.73%；Pb 5.07%；Ag 37g/t；Fe
15.11%) wet-milling to granularity is less than after 200 mesh and sized mixing with dilute sulfuric acid, is subsequently poured into autoclave, in leaching process constantly
It is passed through pure oxygen and control technology condition：The g/L of sulfuric acid concentration 160, liquid-solid ratio 6: 1,150 DEG C of temperature, adjustment and maintenance pressure 1.4
MPa, the r/min of mixing speed 600, the h of reaction time 2.5, ore pulp is discharged into autoclave after the completion of Oxidation Leaching, carry out liquid and divide admittedly
From Zn is with Zn2+Into leachate, obtain zinc leaching rate through assay and be up to 99.08%, leached mud returns the recovery of pyrometallurgical smelting of lead system
The valuable elements such as Ag, Pb, S.Cyclone electrolytic cell, control technology condition are directly carried out after acid adjustment containing zinc lixiviating solution：The g/L of acidity 120
, the V of tank voltage 3.5, the A/m of current density 9002, the h of electrolysing period 36；Negative electrode zinc product, cathode zinc founding into after zinc ingot metal its
Purity is 99.997%, meets national standard electricity zinc product quality requirement.
Claims (6)
- A kind of 1. technique of efficient selective separation Zinc Content in Zinc Sulphide Concentrate, it is characterised in that：Zinc sulfide concentrates after wet-milling with Sulfuric acid is sized mixing, and is then pumped into autoclave and is entered horizontal high voltage acidleach；Pure oxygen is constantly passed through during Oxidation Leaching, and in autoclave Regulator A is added during Oxidation Leaching；Control suitable technical indicator；Zn is with Zn in zinc sulfide concentrates2+Form enter solution, greatly Part sulphur is oxidized to elemental sulfur and is transferred in slag, and Pb is then with PbSO4Form and silver stay in slag；Carried out after the completion of leaching Solid-liquor separation, the leachate containing zinc directly carry out cyclone electrolytic cell after acid adjustment, must meet the electric zinc product of national standard, and leached mud is delivered to Pyrometallurgical smelting of lead system synthetical recovery Pb, Ag, S valuable element, cyclone electrolytic cell sink electrolysis waste solution after zinc add moderate amount of sulfuric acid return it is high Kettle is pressed as leachate Reusability, as Cu in electrolysis waste solution2+Accumulate it is a certain amount of after by control tank voltage carry out selectivity Heavy copper obtains black copper slag；Black copper slag returns copper metallurgy industry；The composition of the zinc sulfide concentrates is：Zn：30~60%；S：15~38%；As：0.05~0.2%；Pb：2~8%；Fe：5~ 20%；Described zinc sulfide concentrates after wet-milling granularity in -200 mesh；Zinc sulfide concentrates use pure oxygen in autoclave Oxidation Leaching For oxidant；The zinc sulfide concentrates are in autoclave Oxidation Leaching, the whole sour pH=1-2 of control, can make exhausted big in zinc sulfide concentrates Part Fe, As are entered in slag in the form of bloodstone, siderotil and arsenic acid molysite.
- A kind of 2. technique of efficient selective separation Zinc Content in Zinc Sulphide Concentrate according to claim 1, it is characterised in that：Sulphur Changing zinc concentrate, its appropriate technology index is during Oxidation Leaching in autoclave：120~180g/L of sulfuric acid concentration, liquid-solid ratio 4~6: 1mL/g, 130~160 DEG C of temperature, oxygen press 0.8~1.4MPa, the r/min of mixing speed 500~700, reaction time 1.5~2.5 h。
- A kind of 3. technique of efficient selective separation Zinc Content in Zinc Sulphide Concentrate according to claim 1, it is characterised in that：Institute The regulator A stated is calcium lignosulfonate or sodium lignin sulfonate, and its dosage is the 0.8~1.5% of zinc sulfide concentrates gross mass.
- A kind of 4. technique of efficient selective separation Zinc Content in Zinc Sulphide Concentrate according to claim 1, it is characterised in that：Institute In the high pressure acidleach stated, the leaching rate of Zinc Content in Zinc Sulphide Concentrate is up to more than 98.5%；Lead, silver-colored valuable metal enter slag rate for 100%； Iron, arsenic enter slag rate more than 95%；Sulphur enters slag rate more than 90%；When leachate carries out cyclone electrolytic cell, its electrolytic efficiency is up to 92%.
- A kind of 5. technique of efficient selective separation Zinc Content in Zinc Sulphide Concentrate according to claim 1, it is characterised in that：Institute The leachate stated is after acid adjustment as the electrolyte in cyclone electrolytic cell, Zn2+Content is not less than 5 g/L.
- A kind of 6. technique of efficient selective separation Zinc Content in Zinc Sulphide Concentrate according to claim 1, it is characterised in that：Institute The technical indicator when leachate stated carries out cyclone electrolytic cell is：The g/L of sulfuric acid concentration 80~150, the V of tank voltage 3.0~3.8, electricity The A/m of current density 800~9002, the h of electrolysing period 36.
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| CN106757155A (en) * | 2016-12-19 | 2017-05-31 | 内蒙古兴安铜锌冶炼有限公司 | A kind of measuring method of bath voltage |
| CN106906363B (en) * | 2017-01-19 | 2019-02-05 | 昆明理工大学 | A kind of processing method of the slag containing arsenical copper |
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| CN112458309A (en) * | 2020-12-14 | 2021-03-09 | 昆明冶金研究院有限公司 | Method for improving zinc leaching rate in zinc sulfide concentrate |
| CN114934192B (en) * | 2022-06-14 | 2024-01-30 | 长沙有色冶金设计研究院有限公司 | Method for cooperatively leaching zinc concentrate and arsenic sulfide slag |
| CN114990351B (en) * | 2022-06-14 | 2024-01-30 | 长沙有色冶金设计研究院有限公司 | Method for cooperatively treating zinc concentrate and copper white smoke dust |
| CN115505735A (en) * | 2022-10-28 | 2022-12-23 | 昆明冶金研究院有限公司 | Method for separating silver and zinc from high-zinc silver concentrate |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1245686A2 (en) * | 2001-03-28 | 2002-10-02 | Dowa Mining Co., Ltd. | Method and apparatus for leaching zinc concentrates |
| CN101709373A (en) * | 2009-11-18 | 2010-05-19 | 云南冶金集团股份有限公司技术中心 | Method and system for treating lead-zinc sulfide ores |
| CN102586597A (en) * | 2012-03-09 | 2012-07-18 | 云南冶金集团股份有限公司 | Pressure leaching method of zinc sulfide concentrate |
-
2016
- 2016-01-24 CN CN201610043502.1A patent/CN105603186B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1245686A2 (en) * | 2001-03-28 | 2002-10-02 | Dowa Mining Co., Ltd. | Method and apparatus for leaching zinc concentrates |
| CN101709373A (en) * | 2009-11-18 | 2010-05-19 | 云南冶金集团股份有限公司技术中心 | Method and system for treating lead-zinc sulfide ores |
| CN102586597A (en) * | 2012-03-09 | 2012-07-18 | 云南冶金集团股份有限公司 | Pressure leaching method of zinc sulfide concentrate |
Non-Patent Citations (1)
| Title |
|---|
| 旋流电解技术及其应用;邓涛;《世界有色金属》;20121231;第36页旋流电解技术的应用第1段，第37页结论 * |
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