CN103789544A - Synergistic leaching-copper arsenate removing method for leaching residues in high-iron zinc calcine and high-iron zinc sulfide concentrate - Google Patents
Synergistic leaching-copper arsenate removing method for leaching residues in high-iron zinc calcine and high-iron zinc sulfide concentrate Download PDFInfo
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- CN103789544A CN103789544A CN201410049421.3A CN201410049421A CN103789544A CN 103789544 A CN103789544 A CN 103789544A CN 201410049421 A CN201410049421 A CN 201410049421A CN 103789544 A CN103789544 A CN 103789544A
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- zinc
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000012141 concentrate Substances 0.000 title claims abstract description 25
- 239000005083 Zinc sulfide Substances 0.000 title claims abstract description 23
- 238000002386 leaching Methods 0.000 title claims abstract description 23
- 229910052984 zinc sulfide Inorganic materials 0.000 title claims abstract description 23
- 229940030341 copper arsenate Drugs 0.000 title abstract 2
- 230000002195 synergetic effect Effects 0.000 title abstract 2
- 239000010949 copper Substances 0.000 claims abstract description 83
- 229910052802 copper Inorganic materials 0.000 claims abstract description 75
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 65
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 57
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 55
- 239000011701 zinc Substances 0.000 claims abstract description 55
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 40
- 238000009854 hydrometallurgy Methods 0.000 claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- 239000007787 solid Substances 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 229910000365 copper sulfate Inorganic materials 0.000 claims abstract description 7
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 239000002184 metal Substances 0.000 claims abstract description 7
- 238000000926 separation method Methods 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 239000002699 waste material Substances 0.000 claims abstract description 4
- 229910052785 arsenic Inorganic materials 0.000 claims description 48
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims description 48
- 239000007788 liquid Substances 0.000 claims description 31
- 239000002893 slag Substances 0.000 claims description 21
- 239000004576 sand Substances 0.000 claims description 20
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 5
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims description 4
- 229910001431 copper ion Inorganic materials 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 238000013019 agitation Methods 0.000 claims description 2
- VUEDNLCYHKSELL-UHFFFAOYSA-N arsonium Chemical compound [AsH4+] VUEDNLCYHKSELL-UHFFFAOYSA-N 0.000 claims description 2
- 238000004070 electrodeposition Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- 239000011593 sulfur Substances 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract description 6
- 238000003723 Smelting Methods 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 3
- 150000002739 metals Chemical class 0.000 abstract 2
- 238000005363 electrowinning Methods 0.000 abstract 1
- 238000005272 metallurgy Methods 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 13
- 239000000243 solution Substances 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- 238000001556 precipitation Methods 0.000 description 7
- MKOYQDCOZXHZSO-UHFFFAOYSA-N [Cu].[Cu].[Cu].[As] Chemical compound [Cu].[Cu].[Cu].[As] MKOYQDCOZXHZSO-UHFFFAOYSA-N 0.000 description 4
- JEMGLEPMXOIVNS-UHFFFAOYSA-N arsenic copper Chemical compound [Cu].[As] JEMGLEPMXOIVNS-UHFFFAOYSA-N 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004886 process control Methods 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 235000011149 sulphuric acid Nutrition 0.000 description 3
- 239000001117 sulphuric acid Substances 0.000 description 3
- PLZFHNWCKKPCMI-UHFFFAOYSA-N cadmium copper Chemical compound [Cu].[Cd] PLZFHNWCKKPCMI-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
Classifications
-
- 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 belongs to the field of wet metallurgy of zinc, and particularly relates to a synergistic leaching-copper arsenate removing method for leaching residues in high-iron zinc calcine and high-iron zinc sulfide concentrate. The method comprises the following steps: mixing the leaching residues in the high-iron zinc calcine with the high-iron zinc sulfide concentrate; mixing zinc electrowinning waste liquor and a part of sulfuric acid-containing solution prepared from concentrated sulfuric acid and synergistically leaching; adding a reaction dosage of industrial iron powder into a synergistically-leached copper arsenate-removing primary solution; replenishing a proper amount of copper sulfate as required; reacting; performing liquid-solid separation on reaction ore pulp to obtain cuprous arsenide precipitate serving as a copper-leaching raw material and a copper arsenate-removing secondary solution; returning the copper arsenate-removing secondary solution to a zinc hydrometallurgy process to further recover valuable metals therein. The method is clean and efficient, efficient leaching of copper and efficient reduction of Fe<3+> can be realized, the solution treatment amount is small, the comprehensive recovery rate of valuable metals in a zinc hydrometallurgy process is increased comprehensively, and the smelting flow is simplified.
Description
Technical field
The invention belongs to the hydrometallurgy field of zinc, particularly relate to and in a kind of high ferro zinc baking sand, soak slag and the collaborative leaching-copper removal arsenic method of high-iron zinc sulfide concentrate.
Background technology
In existing hydrometallurgical technology, in cupric acidic solution, the enriching method of copper is mainly solvent extration and metal replacement method.Solvent extration is mainly used in wet type copper smelting process and produces the enrichment process of copper in high copper ion concentration solution.In Zinc Hydrometallurgy Process because zinc ore concentrate cupric is low, in leach liquor, copper concentration is also thereupon lower, while now adopting solvent extration, production process solution-treated amount is large, process is restive, and the metal-powders such as zinc powder, iron powder or aluminium powder can effectively cement out the copper in solution with sponge copper ashes form output as reductive agent, copper sponge can be used as the raw material that reclaims copper.
In Zinc Hydrometallurgy Process, in zinc ore concentrate, approximately 35% copper enters neutral leach liquor, and after employing zinc dust precipitation, 99% above copper is enriched in copper-cadmium slag, becomes the raw material that reclaims copper cadmium.And the copper entering in neutral leaching residue is difficult to efficient recovery in the time adopting conventional wet smelting process, cause loss and the waste of copper resource.
Summary of the invention
The object of the invention is to overcome the comprehensive weak point that reclaims and utilize aspect of existing Zinc Hydrometallurgy Process valuable metal copper, provide one to clean, in high ferro zinc baking sand, soak slag and the collaborative leaching of high-iron zinc sulfide concentrate efficiently
-copper removal arsenic method, the method can leach with the copper of enrichment zinc metallurgical process and remove arsenic impurities.
Realizing the step that object of the present invention takes is: will in the high ferro zinc baking sand containing zinc 15 ~ 35%, iron 20 ~ 40%, copper 0.15 ~ 2.5%, arsenic 0.3 ~ 0.6%, soak slag and mix 1:0.15 ~ 0.35 in mass ratio containing the high-iron zinc sulfide concentrate of zinc 35 ~ 46%, iron 16 ~ 25%, copper 0.1 ~ 1.5%, arsenic 0.2 ~ 0.4%, size mixing with the solution of the sulfur acid 180 ~ 220g/L of zinc electrodeposition waste liquid and part vitriol oil preparation, control and leach liquid-solid ratio 6 ~ 8mL/g, 85 ℃ ~ 95 ℃ of temperature, collaborative leaching 2 ~ 4 hours under agitation condition, the leach liquor of output is the front liquid of copper removal arsenic; To the Industrial iron powder and the copper sulfate that add reaction metering in liquid before copper removal arsenic, and at 50 ~ 90 ℃ stirring reaction 20 ~ 40 minutes; After reaction finishes, by reaction ore pulp liquid after liquid-solid separation obtains the cuprous throw out of arsenicization and copper removal arsenic, the cuprous throw out of arsenicization is as carrying copper raw material, and after copper removal arsenic, liquid returns to zinc hydrometallurgy operation and further reclaims valuable metal wherein.
Before the copper removal arsenic of leaching gained, in liquid, should contain Cu
2+0.5 ~ 3.5g/L, Fe20 ~ 40g/L, Fe
3+1.5 ~ 6g/L, As
3+0.2 ~ 0.6g/L.
The Industrial iron powder amount adding in liquid before copper removal arsenic is Cu in liquid
2+and Fe
3+1 ~ 1.5 times of theoretical amount sum, the consumption of copper sulfate is according to being Cu in maintenance medium
2+and As
3+the ratio of mole theory amount is 3:1.
It is 0.2 ~ 0.8 that the initial pH of the described front liquid of copper removal arsenic should be adjusted into.
After copper removal arsenic, in liquid, should reach copper ion concentration and be less than 3mg/L, arsonium ion concentration is less than 1mg/L.
The invention has the beneficial effects as follows: in high ferro zinc baking sand, soak the efficient leaching and the Fe that in the collaborative leaching process of slag and high-iron zinc sulfide concentrate, have realized copper
3+efficient reduction, adopt iron replacement more than 99% copper and arsenic in solution can be enriched in copper arsenide precipitation, while having overcome the low copper ion concentration solution of extraction, solution-treated amount is large, process volume is difficult to the problems such as balance, detrimental impurity arsenic in solution is cured and is removed simultaneously, improve the comprehensive recovery of Zinc Hydrometallurgy Process valuable metal comprehensively, simplified smelting flow process.
Specific embodiment
embodiment mono-:
1. material chemical component and each composition weight percent.
Take from that in the high ferro zinc baking sand of certain zinc hydrometallurgy enterprise, to soak the chemical composition of slag as follows: zinc 36%, iron 37%, copper 0.93%, arsenic 0.75%;
The chemical composition of high-iron zinc sulfide concentrate of taking from certain zinc hydrometallurgy enterprise is as follows: zinc 45.8%, iron 18.9%, copper 0.58%, arsenic 0.41%;
2, in high ferro zinc baking sand, soak the collaborative leaching of slag and high-iron zinc sulfide concentrate.
(1) by high ferro zinc baking sand, soak slag and high-iron zinc sulfide concentrate in mass ratio 1:0.25 mix, size mixing with the sulphuric acid soln of 180g/L, leach liquid-solid ratio 8mL/g;
(2) process control: 90 ℃ of temperature, 500 revs/min of mixing speed, 4 hours reaction times.The leaching yield of zinc is 98.5%, and the leaching yield of copper is 95.6%, Cu in liquid before copper removal arsenic
2+1.26g/ L, Fe
3+concentration is 2.8 g/L, As
3+concentration is 0.58 g/L, pH 0.76.
3, the precipitation enrichment of copper arsenic in liquid before copper removal arsenic.
The Industrial iron powder that adds 1 times of theoretical amount before copper removal arsenic in liquid, adds a small amount of copper sulfate, Cu in maintenance medium
2+and As
3+the ratio of mole theory amount is 3:1, and at 90 ℃, stirring reaction reacts ore pulp liquid after liquid-solid separation obtains copper arsenide precipitation and copper removal after 20 minutes.The deposition rate of copper is 99.5%, and arsenic removal efficiency is 99.8%.
embodiment bis-:
1. material chemical component and each composition weight percent.
Take from that in the high ferro zinc baking sand of certain zinc hydrometallurgy enterprise, to soak the chemical composition of slag as follows: zinc 28%, iron 31.4%, copper 1.2%, arsenic 0.35%;
The chemical composition of high-iron zinc sulfide concentrate of taking from certain zinc hydrometallurgy enterprise is as follows: zinc 40%, iron 25%, copper 0.18%, arsenic 0.23%;
2, in high ferro zinc baking sand, soak the collaborative leaching of slag and high-iron zinc sulfide concentrate.
(1) by high ferro zinc baking sand, soak slag and high-iron zinc sulfide concentrate in mass ratio 1:0.35 mix, size mixing with the sulphuric acid soln of 220g/L, leach liquid-solid ratio 6mL/g;
(2) process control: 95 ℃ of temperature, 550 revs/min of mixing speed, 3 hours reaction times.The leaching yield of zinc is 97.9%, and the leaching yield of copper is 96.8%, Cu in solution
2+0.62g/ L, Fe
3+concentration is 1.66 g/L, As
3+concentration is 0.25 g/L, pH 0.2.
3, the precipitation enrichment of copper arsenic in liquid before copper removal arsenic.
The Industrial iron powder that adds 1.5 times of theoretical amount before copper removal in liquid, adds a small amount of copper sulfate, Cu in maintenance medium
2+and As
3+the ratio of mole theory amount is 3:1, and at 70 ℃, stirring reaction reacts ore pulp liquid after liquid-solid separation obtains copper arsenide throw out and copper removal arsenic after 30 minutes.The deposition rate of copper is 99.9%, and arsenic removal efficiency is 99.2%.
embodiment tri-:
1. material chemical component and each composition weight percent.
Take from that in the high ferro zinc baking sand of certain zinc hydrometallurgy enterprise, to soak the chemical composition of slag as follows: zinc 15%, iron 21%, copper 2.13%, arsenic 0.65%;
The chemical composition of high-iron zinc sulfide concentrate of taking from certain zinc hydrometallurgy enterprise is as follows: zinc 35%, iron 18%, copper 1.5%, arsenic 0.42%;
2, in high ferro zinc baking sand, soak the collaborative leaching of slag and high-iron zinc sulfide concentrate.
(1) by high ferro zinc baking sand, soak slag and high-iron zinc sulfide concentrate in mass ratio 1:0.15 mix, size mixing with the sulphuric acid soln of 190g/L, leach liquid-solid ratio 7mL/g;
(2) process control: 85 ℃ of temperature, 500 revs/min of mixing speed, 2 hours reaction times.The leaching yield of zinc is 98.5%, and the leaching yield of copper is 96.9%, Cu in liquid before copper removal arsenic
2+3.16g/ L, Fe
3+concentration is 3.98 g/L, As
3+concentration is 0.58 g/L, pH 0.56.
3, the precipitation enrichment of copper arsenic in liquid before copper removal arsenic.
Before copper removal arsenic, in liquid, add the Industrial iron powder of 1.2 times of theoretical amount, at 50 ℃, stirring reaction reacts ore pulp liquid after liquid-solid separation obtains copper arsenide precipitation and copper removal after 40 minutes.The deposition rate of copper is 99.7%, and arsenic removal efficiency is 99.8%.
Claims (5)
1. in a high ferro zinc baking sand, soak the collaborative leaching-copper removal arsenic method of slag and high-iron zinc sulfide concentrate, it is characterized in that: will be containing zinc 15 ~ 35%, iron 20 ~ 40%, copper 0.15 ~ 2.5%, in the high ferro zinc baking sand of arsenic 0.3 ~ 0.6%, soak slag and contain zinc 35 ~ 46%, iron 16 ~ 25%, copper 0.1 ~ 1.5%, the high-iron zinc sulfide concentrate of arsenic 0.2 ~ 0.4% in mass ratio 1:0.15 ~ 0.35 mixes, size mixing with the solution of the sulfur acid 180 ~ 220g/L of zinc electrodeposition waste liquid and part vitriol oil preparation, control and leach liquid-solid ratio 6 ~ 8mL/g, 85 ℃ ~ 95 ℃ of temperature, collaborative leaching 2 ~ 4 hours under agitation condition, the leach liquor of output is the front liquid of copper removal arsenic, to the Industrial iron powder and the copper sulfate that add reaction metering in liquid before copper removal arsenic, and at 50 ~ 90 ℃ stirring reaction 20 ~ 40 minutes, after reaction finishes, by reaction ore pulp liquid after liquid-solid separation obtains the cuprous throw out of arsenicization and copper removal arsenic, the cuprous throw out of arsenicization is as carrying copper raw material, and after copper removal arsenic, liquid returns to zinc hydrometallurgy operation and further reclaims valuable metal wherein.
2. in high ferro zinc baking sand according to claim 1, soak the collaborative leaching-copper removal arsenic method of slag and high-iron zinc sulfide concentrate, it is characterized in that: before the copper removal arsenic of leaching gained, in liquid, should contain Cu
2+0.5 ~ 3.5g/L, Fe20 ~ 40g/L, Fe
3+1.5 ~ 6g/L, As
3+0.2 ~ 0.6g/L.
3. in high ferro zinc baking sand according to claim 1, soak the collaborative leaching-copper removal arsenic method of slag and high-iron zinc sulfide concentrate, it is characterized in that: the Industrial iron powder amount adding in liquid before copper removal arsenic is Cu in liquid
2+and Fe
3+1 ~ 1.5 times of theoretical amount sum, the consumption of copper sulfate is according to being Cu in maintenance medium
2+and As
3+the ratio of mole theory amount is 3:1.
4. in high ferro zinc baking sand according to claim 1, soak the collaborative leaching-copper removal arsenic method of slag and high-iron zinc sulfide concentrate, it is characterized in that: it is 0.2 ~ 0.8 that the initial pH of the described front liquid of copper removal arsenic should be adjusted into.
5. in high ferro zinc baking sand according to claim 1, soak the collaborative leaching-copper removal arsenic method of slag and high-iron zinc sulfide concentrate, it is characterized in that: after copper removal arsenic, in liquid, should reach copper ion concentration and be less than 3mg/L, arsonium ion concentration is less than 1mg/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410049421.3A CN103789544A (en) | 2014-02-13 | 2014-02-13 | Synergistic leaching-copper arsenate removing method for leaching residues in high-iron zinc calcine and high-iron zinc sulfide concentrate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410049421.3A CN103789544A (en) | 2014-02-13 | 2014-02-13 | Synergistic leaching-copper arsenate removing method for leaching residues in high-iron zinc calcine and high-iron zinc sulfide concentrate |
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| Publication Number | Publication Date |
|---|---|
| CN103789544A true CN103789544A (en) | 2014-05-14 |
Family
ID=50665595
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|---|---|---|---|
| CN201410049421.3A Pending CN103789544A (en) | 2014-02-13 | 2014-02-13 | Synergistic leaching-copper arsenate removing method for leaching residues in high-iron zinc calcine and high-iron zinc sulfide concentrate |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104745810A (en) * | 2015-04-01 | 2015-07-01 | 昆明理工大学科技产业经营管理有限公司 | Treatment technique of copper-containing high-indium high-iron zinc sulfide concentrate |
| CN105838904A (en) * | 2016-03-29 | 2016-08-10 | 云南华联锌铟股份有限公司 | Method for removing copper and arsenic in zinc-containing material sulfur dioxide-reduced leaching liquid |
| CN109437619A (en) * | 2018-12-04 | 2019-03-08 | 上海中冶环境工程科技有限公司 | A kind of purposes and cement for smelting copper ashes as cement irony correction agent |
| CN111003834A (en) * | 2018-10-08 | 2020-04-14 | 昆明理工大学 | Method for removing arsenic and chlorine from waste acid |
| CN111018212A (en) * | 2018-10-09 | 2020-04-17 | 昆明理工大学 | Method for removing arsenic and chlorine from waste acid wastewater of metallurgical enterprise |
| CN111018211A (en) * | 2018-10-09 | 2020-04-17 | 昆明理工大学 | Method for removing arsenic by adding zinc powder into ultrasonically-reinforced polluted acid |
| CN111072200A (en) * | 2018-10-18 | 2020-04-28 | 昆明理工大学 | Method for removing arsenic and chlorine by adding metal powder and inorganic salt into waste acid |
| CN114438340A (en) * | 2022-01-11 | 2022-05-06 | 云南云铜锌业股份有限公司 | Wet zinc smelting leaching process |
| CN114606400A (en) * | 2022-01-28 | 2022-06-10 | 云锡文山锌铟冶炼有限公司 | Method for treating arsenic-zinc-containing leaching residues of high-iron |
| CN115216628A (en) * | 2022-06-14 | 2022-10-21 | 云锡文山锌铟冶炼有限公司 | Method for removing copper and arsenic from copper and arsenic-containing acidic solution |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104745810A (en) * | 2015-04-01 | 2015-07-01 | 昆明理工大学科技产业经营管理有限公司 | Treatment technique of copper-containing high-indium high-iron zinc sulfide concentrate |
| CN105838904A (en) * | 2016-03-29 | 2016-08-10 | 云南华联锌铟股份有限公司 | Method for removing copper and arsenic in zinc-containing material sulfur dioxide-reduced leaching liquid |
| CN111003834A (en) * | 2018-10-08 | 2020-04-14 | 昆明理工大学 | Method for removing arsenic and chlorine from waste acid |
| CN111018211A (en) * | 2018-10-09 | 2020-04-17 | 昆明理工大学 | Method for removing arsenic by adding zinc powder into ultrasonically-reinforced polluted acid |
| CN111018212A (en) * | 2018-10-09 | 2020-04-17 | 昆明理工大学 | Method for removing arsenic and chlorine from waste acid wastewater of metallurgical enterprise |
| CN111072200A (en) * | 2018-10-18 | 2020-04-28 | 昆明理工大学 | Method for removing arsenic and chlorine by adding metal powder and inorganic salt into waste acid |
| CN111072200B (en) * | 2018-10-18 | 2022-01-04 | 昆明理工大学 | Method for removing arsenic and chlorine by adding metal powder and inorganic salt into waste acid |
| CN109437619A (en) * | 2018-12-04 | 2019-03-08 | 上海中冶环境工程科技有限公司 | A kind of purposes and cement for smelting copper ashes as cement irony correction agent |
| CN114438340A (en) * | 2022-01-11 | 2022-05-06 | 云南云铜锌业股份有限公司 | Wet zinc smelting leaching process |
| CN114438340B (en) * | 2022-01-11 | 2023-12-29 | 云南云铜锌业股份有限公司 | Zinc hydrometallurgy leaching process |
| CN114606400A (en) * | 2022-01-28 | 2022-06-10 | 云锡文山锌铟冶炼有限公司 | Method for treating arsenic-zinc-containing leaching residues of high-iron |
| CN114606400B (en) * | 2022-01-28 | 2023-09-22 | 云锡文山锌铟冶炼有限公司 | Treatment method of high-iron arsenic-zinc-containing leaching residues |
| CN115216628A (en) * | 2022-06-14 | 2022-10-21 | 云锡文山锌铟冶炼有限公司 | Method for removing copper and arsenic from copper and arsenic-containing acidic solution |
| CN115216628B (en) * | 2022-06-14 | 2023-09-22 | 云锡文山锌铟冶炼有限公司 | Method for removing copper and arsenic from copper-arsenic-containing acidic solution |
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Application publication date: 20140514 |