CN102352445A - Zinc leached residue hot acid reduction leaching method - Google Patents
Zinc leached residue hot acid reduction leaching method Download PDFInfo
- Publication number
- CN102352445A CN102352445A CN2011102861586A CN201110286158A CN102352445A CN 102352445 A CN102352445 A CN 102352445A CN 2011102861586 A CN2011102861586 A CN 2011102861586A CN 201110286158 A CN201110286158 A CN 201110286158A CN 102352445 A CN102352445 A CN 102352445A
- Authority
- CN
- China
- Prior art keywords
- zinc
- leaching
- iron
- hot acid
- indium
- 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.)
- Pending
Links
- 238000002386 leaching Methods 0.000 title claims abstract description 90
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 88
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 88
- 239000011701 zinc Substances 0.000 title claims abstract description 88
- 239000002253 acid Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 60
- 229910052738 indium Inorganic materials 0.000 claims abstract description 32
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229910052742 iron Inorganic materials 0.000 claims abstract description 30
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 20
- 239000012141 concentrate Substances 0.000 claims abstract description 19
- 239000005083 Zinc sulfide Substances 0.000 claims abstract description 16
- 229910052984 zinc sulfide Inorganic materials 0.000 claims abstract description 16
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 claims abstract description 16
- 230000002829 reductive effect Effects 0.000 claims abstract description 14
- 239000003792 electrolyte Substances 0.000 claims abstract description 13
- 239000002699 waste material Substances 0.000 claims abstract description 13
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 11
- 235000011149 sulphuric acid Nutrition 0.000 claims abstract description 9
- 239000001117 sulphuric acid Substances 0.000 claims abstract description 9
- 238000000605 extraction Methods 0.000 claims description 12
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 9
- 150000007513 acids Chemical class 0.000 claims description 8
- 229910052717 sulfur Inorganic materials 0.000 claims description 4
- 239000011593 sulfur Substances 0.000 claims description 4
- 238000009835 boiling Methods 0.000 claims description 2
- 230000007935 neutral effect Effects 0.000 claims description 2
- 239000004576 sand Substances 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 19
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract description 7
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 abstract description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 6
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 239000005864 Sulphur Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 description 3
- 229910000360 iron(III) sulfate Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- WGEATSXPYVGFCC-UHFFFAOYSA-N zinc ferrite Chemical group O=[Zn].O=[Fe]O[Fe]=O WGEATSXPYVGFCC-UHFFFAOYSA-N 0.000 description 2
- 229910001308 Zinc ferrite Inorganic materials 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910000337 indium(III) sulfate Inorganic materials 0.000 description 1
- XGCKLPDYTQRDTR-UHFFFAOYSA-H indium(iii) sulfate Chemical compound [In+3].[In+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O XGCKLPDYTQRDTR-UHFFFAOYSA-H 0.000 description 1
- KFZAUHNPPZCSCR-UHFFFAOYSA-N iron zinc Chemical compound [Fe].[Zn] KFZAUHNPPZCSCR-UHFFFAOYSA-N 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000004575 stone Substances 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
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
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a zinc leached residue hot acid reduction leaching method, which comprises the following steps that: zinc leached residue comprises 20 weight percent to 40 weight percent of iron, 0.08 weight percent to 0.45 weight percent of indium and 20 weight percent to 40 weight percent of zinc, dilute sulphuric acid or zinc waste electrolyte is used as a leaching agents zinc sulfide concentrates are used as reducing agents, and the hot acid reduction leaching is carried out according to the following conditions that: the addition quantity of the dilute sulphuric acid or zinc waste electrolyte is 7 to 10 cubic meters in each ton zinc leached residue, the addition quantity of the zinc sulfide concentrates is 20 percent to 50 percent of the weight of the zinc leached residue, the initial leaching acidity is 130 to 220g/L, the terminal leaching acidity is 50 to 100g/L, the leaching temperature is 85 to 98 DEG C, and the leaching time is 3 to 5h. The method has the advantages that the hot acid leaching process of the zinc leaching residue and the process of reducing ferric iron into ferrous iron are merged into one hot acid reduction leaching technical process, the leaching rates of iron, zinc and indium are improved, the zinc leaching rate reaches higher than 98 percent, the indium leaching rate reaches higher than 96 percent, the equipment investment is saved, and the energy consumption is reduced.
Description
Technical field
The present invention relates to a kind of non-ferrous metal metallurgy technology, particularly a kind of iron content 20%～40%, contain indium In0.08%～0.45%, contain the zinc leaching residue hot acid acids reduction leaching method of zinc 20～40%.
Background technology
At present, iron content 20%～40%, contain indium In0.08%～0.45%, the zinc leaching residue treatment process that contains zinc 20～40% is: two step of zinc leaching residue hot acid leaching-leach liquor reduction treatment process.Iron content 20%～40%, contain indium In0.08%～0.45%, contain the zinc leaching residue of zinc 20～40%; Add sulfuric acid or zinc waste electrolyte and make leaching agent; Leaching beginning acid 100～170g/L, leaching eventually and leach under acid 50～100g/L, 85～98 ℃ of extraction temperatures, 2～5 hours the condition of extraction time, the instant heating acidleach goes out, and the hot acid leaching process leaches iron, zinc, indium and gets into solution; Through after the solid-liquid separation, the solution that obtains reduces.The purpose of solution reduction is that zinc, iron, the indium separation for next step creates conditions, and reduction process is generally made reductive agent with zinc sulfide concentrates, and 80～98 ℃ of reduction temperatures, 3～6 hours recovery times, reduction terminal point ferric iron content are lower than 2 grams per liters.
There are two subject matters in two step of zinc leaching residue hot acid leaching-leach liquor reduction treatment process:
1, the leaching yield of iron, zinc, indium is low, owing to the iron zinc element major part in the zinc leaching residue exists with the zinc ferrite form, under the condition that hot acid leaches; Iron in the solution exists with ferric form, and on thermodynamics, easy and leaching agent reaches a halfway running balance; Directly have influence on leaching process and proceed, therefore, the iron, zinc, the indium content that remain in the slag are higher; Thereby caused the leaching yield of iron, zinc, indium to reduce; The leaching yield of zinc is 90%～96%, and the leaching yield of indium is 85～92%, and the leaching yield of iron is 80～90%;
2, be divided into two processes because hot acid leaches with solution reduction, need two complete equipments, increased the equipment input; Simultaneously, because two processes all are to carry out for 85～98 ℃ at comparatively high temps, energy consumption obviously increases.
Summary of the invention
The purpose of this invention is to provide a kind of zinc leaching residue hot acid acids reduction leaching method; It can be reduced into the ferrous iron process with the hot acid leaching process of zinc leaching residue and ferric iron and merge into a technological process; It is hot acid reduction extract technology process; Improve iron, zinc, indium leaching yield, practice thrift facility investment, reduce energy consumption.
The present invention realizes above-mentioned purpose through following technical scheme:
A kind of zinc leaching residue hot acid acids reduction leaching method; Comprise the steps: that said zinc leaching residue contains (wt%) iron 20%～40%, contains indium In0.08%～0.45%, contains zinc 20～40%; With dilute sulphuric acid or zinc waste electrolyte as leaching agent; Zinc sulfide concentrates carries out the hot acid reduction by following condition and leaches as reductive agent:
The add-on of dilute sulphuric acid or zinc waste electrolyte is 7～10 cubic metres of/ton zinc leaching residues; The add-on of zinc sulfide concentrates is 20%～50% of a zinc leaching residue weight; Leaching initial acidity is 130～220g/L; Leach and stop acidity 50～100g/L, 85～98 ℃ of extraction temperatures, extraction time 3～5 hours.
Described dilute sulphuric acid concentration 180～220g/L, contains zinc 40～60g/L at zinc waste electrolyte sulfur acid 130～170g/L.
Said zinc sulfide concentrates is as reductive agent, and zinc sulfide concentrates contains zinc 45～55%, sulfur-bearing 27～33%.
Said zinc leaching residue for contain (wt%) iron 10%～20%, contain indium In0.04%～0.22%, zinc baking sand that the concentrate that contains zinc 45～55% obtains through boiling roaster is again through the filter residue of crossing after neutral the leaching.
Outstanding effect of the present invention is:
Technological process of hot acid reduction leaching is merged in the hot acid leaching and two technological processs of reducing.In hot acid reduction extract technology process; Do the leaching agent except that adding dilute sulphuric acid or zinc waste electrolyte; Also add zinc sulfide concentrates and make reductive agent, red stone in the zinc leaching residue and Indium sesquioxide are generated the ferric sulfate of solubility by the acid dissolving and the indium sulfate of solubility gets into solution, and the zinc ferrite in the zinc leaching residue is decomposed, and leaching generates zinc sulfate and ferric sulfate gets into solution; Ferric sulfate is under the effect of reductive agent zinc ore concentrate; Be reduced to the ferrous sulfate of divalence, the element sulphur in the zinc sulfide concentrates is oxidized to elemental sulfur, and hot acid reduction leaching process reaches simultaneously and leaches iron, zinc, indium and the ferric purpose of reduction; Optimize technical process, reduced facility investment and energy consumption; Simultaneously, because the iron in the solution exists with the ferrous iron form, on thermodynamics, can reach a running balance completely with leaching agent; Iron, zinc, indium leaching yield have been improved; The leaching yield of zinc is 96%～99%, and the leaching yield of indium is 93～97%, and the leaching yield of iron is 90～95%.
Embodiment
Below further describe through the technical scheme of specific embodiment the present inventor.
Embodiment 1
To contain (wt%) iron 23%, contain indium In0.08%, contain 0.2 ton of the zinc leaching residue of zinc 22%; The zinc waste electrolyte that adds and contain zinc 48 grams per liters, contains sour 153 grams per liters is made leaching agent for 1.88 cubic metres; Add and to contain (wt%) sulphur 31%, contain zinc 48%, iron content 16%, the zinc sulfide concentrates that contains indium 0.04% make reductive agent for 0.04 ton; 94～98 ℃ of extraction temperatures, extraction time 4.5 hours.Get 1.90 cubic metres of leach liquors, leach liquor contains zinc 80.25 grams per liters, ferric iron 1.20 grams per liters, ferrous iron 24.47 grams per liters, contains indium 0.089 grams per liter, sour 60.0 grams per liters, zinc leaching rate 98.5%, and the indium leaching yield is 96.6%, the iron leaching yield is 93.2%.
Embodiment 2
To contain (wt%) iron 32%, contain indium In0.30%, contain 3.0 tons of the zinc leaching residues of zinc 30%; The zinc waste electrolyte that adds and contain zinc 50 grams per liters, contains sour 160 grams per liters is made leaching agent for 30 cubic metres; Add and to contain (wt%) sulphur 31%, contain zinc 48%, iron content 16%, the zinc sulfide concentrates that contains indium 0.04% make reductive agent for 0.82 ton; 93～97 ℃ of extraction temperatures, extraction time 4.0 hours.Get 30.2 cubic metres of leach liquors, leach liquor contains zinc 88.9 grams per liters, ferric iron 1.09 grams per liters, ferrous iron 32.46 grams per liters, contains indium 0.299 grams per liter, sour 52.8 grams per liters, zinc leaching rate 98.6%, and the indium leaching yield is 96.9%, the iron leaching yield is 92.8%.
Embodiment 3
To contain (wt%) iron 40%, contain indium In0.40%, contain 3.0 tons of the zinc leaching residues of zinc 38%; The zinc waste electrolyte that adds and contain zinc 45 grams per liters, contains sour 170 grams per liters is made leaching agent for 29.3 cubic metres; Add and to contain (wt%) sulphur 31%, contain zinc 48%, iron content 16%, the zinc sulfide concentrates that contains indium 0.04% make reductive agent for 1.06 tons; 90～95 ℃ of extraction temperatures, extraction time 3.5 hours.Get 29.5 cubic metres of leach liquors, leach liquor contains zinc 97.82 grams per liters, ferric iron 1.41 grams per liters, ferrous iron 39.80 grams per liters, contains indium 0.403 grams per liter, sour 54.5 grams per liters, zinc leaching rate 98.3%, and the indium leaching yield is 96.8%, the iron leaching yield is 91.8%.
Claims (4)
1. zinc leaching residue hot acid acids reduction leaching method; It is characterized in that; Comprise the steps: that said zinc leaching residue contains (wt%) iron 20%～40%, contains indium In0.08%～0.45%, contains zinc 20～40%; As leaching agent, zinc sulfide concentrates carries out the hot acid reduction by following condition and leaches as reductive agent with dilute sulphuric acid or zinc waste electrolyte:
The add-on of dilute sulphuric acid or zinc waste electrolyte is 7～10 cubic metres of/ton zinc leaching residues; The add-on of zinc sulfide concentrates is 20%～50% of a zinc leaching residue weight; Leaching initial acidity is 130～220g/L; Leach and stop acidity 50～100g/L, 85～98 ℃ of extraction temperatures, extraction time 3～5 hours.
2. zinc leaching residue hot acid acids reduction leaching method according to claim 1 is characterized in that, described dilute sulphuric acid concentration 180～220g/L, contains zinc 40～60g/L at zinc waste electrolyte sulfur acid 130～170g/L.
3. zinc leaching residue hot acid acids reduction leaching method according to claim 1 is characterized in that, said zinc sulfide concentrates is as reductive agent, and zinc sulfide concentrates contains zinc 45～55%, sulfur-bearing 27～33%.
4. zinc leaching residue hot acid acids reduction leaching method according to claim 1; It is characterized in that, said zinc leaching residue for contain (wt%) iron 10%～20%, contain indium In0.04%～0.22%, zinc baking sand that the concentrate that contains zinc 45～55% obtains through boiling roaster is again through the filter residue of crossing after neutral the leaching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102861586A CN102352445A (en) | 2011-09-23 | 2011-09-23 | Zinc leached residue hot acid reduction leaching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102861586A CN102352445A (en) | 2011-09-23 | 2011-09-23 | Zinc leached residue hot acid reduction leaching method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102352445A true CN102352445A (en) | 2012-02-15 |
Family
ID=45576081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102861586A Pending CN102352445A (en) | 2011-09-23 | 2011-09-23 | Zinc leached residue hot acid reduction leaching method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102352445A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102690942A (en) * | 2012-06-18 | 2012-09-26 | 中南大学 | Method for reduction roasting and fortified acid dissolving of sulfur-containing gold concentrate calcine |
| CN103409621A (en) * | 2013-07-22 | 2013-11-27 | 昆明理工大学科技产业经营管理有限公司 | Combined leaching method for high-iron zinc sulfide concentrate and high-iron zinc calcine leaching slag |
| CN104004923A (en) * | 2014-06-11 | 2014-08-27 | 长沙有色冶金设计研究院有限公司 | Method for extracting zinc by combination of roasting leaching and direct leaching of zinc sulfide concentrate |
| CN105525093A (en) * | 2015-12-25 | 2016-04-27 | 云南云铜锌业股份有限公司 | Method for simplifying zinc hydrometallurgy process |
| CN105624426A (en) * | 2015-12-30 | 2016-06-01 | 河南豫光锌业有限公司 | High-acid filtrate reduction method for zinc hydrometallurgy |
| CN105695733A (en) * | 2016-03-29 | 2016-06-22 | 云南华联锌铟股份有限公司 | Zinc hydrometallurgy technology |
| CN105821208A (en) * | 2016-03-29 | 2016-08-03 | 云南华联锌铟股份有限公司 | Method for reducing and lixiviating zinc containing material by sulfur dioxide |
| CN108165774A (en) * | 2016-12-07 | 2018-06-15 | 北京有色金属研究总院 | A kind of method of recovery indium in pickle liquor from high-iron zinc sulfide concentrate |
| CN108929954A (en) * | 2018-05-31 | 2018-12-04 | 西北矿冶研究院 | Method for efficiently recovering zinc from zinc leaching residues |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007074207A1 (en) * | 2005-12-29 | 2007-07-05 | Outotec Oyj. | Method for recovering rare metals in a zinc leaching process |
| CN101876008A (en) * | 2009-12-17 | 2010-11-03 | 株洲冶炼集团股份有限公司 | Method for reducing zinc content of leached residue in zinc hydrometallurgy process |
-
2011
- 2011-09-23 CN CN2011102861586A patent/CN102352445A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007074207A1 (en) * | 2005-12-29 | 2007-07-05 | Outotec Oyj. | Method for recovering rare metals in a zinc leaching process |
| CN101876008A (en) * | 2009-12-17 | 2010-11-03 | 株洲冶炼集团股份有限公司 | Method for reducing zinc content of leached residue in zinc hydrometallurgy process |
Non-Patent Citations (1)
| Title |
|---|
| 李诚国等: "氯盐体系中锌焙砂中浸渣高温高酸还原浸出研究", 《湿法冶金》, vol. 24, no. 4, 31 December 2005 (2005-12-31), pages 203 - 207 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102690942A (en) * | 2012-06-18 | 2012-09-26 | 中南大学 | Method for reduction roasting and fortified acid dissolving of sulfur-containing gold concentrate calcine |
| CN103409621A (en) * | 2013-07-22 | 2013-11-27 | 昆明理工大学科技产业经营管理有限公司 | Combined leaching method for high-iron zinc sulfide concentrate and high-iron zinc calcine leaching slag |
| CN104004923A (en) * | 2014-06-11 | 2014-08-27 | 长沙有色冶金设计研究院有限公司 | Method for extracting zinc by combination of roasting leaching and direct leaching of zinc sulfide concentrate |
| CN105525093A (en) * | 2015-12-25 | 2016-04-27 | 云南云铜锌业股份有限公司 | Method for simplifying zinc hydrometallurgy process |
| CN105525093B (en) * | 2015-12-25 | 2018-11-02 | 云南云铜锌业股份有限公司 | A kind of method of simplified Zinc hydrometallurgy process |
| CN105624426A (en) * | 2015-12-30 | 2016-06-01 | 河南豫光锌业有限公司 | High-acid filtrate reduction method for zinc hydrometallurgy |
| CN105624426B (en) * | 2015-12-30 | 2018-06-15 | 河南豫光锌业有限公司 | A kind of peracid filtrate restoring method of zinc hydrometallurgy |
| CN105695733A (en) * | 2016-03-29 | 2016-06-22 | 云南华联锌铟股份有限公司 | Zinc hydrometallurgy technology |
| CN105821208A (en) * | 2016-03-29 | 2016-08-03 | 云南华联锌铟股份有限公司 | Method for reducing and lixiviating zinc containing material by sulfur dioxide |
| CN108165774A (en) * | 2016-12-07 | 2018-06-15 | 北京有色金属研究总院 | A kind of method of recovery indium in pickle liquor from high-iron zinc sulfide concentrate |
| CN108929954A (en) * | 2018-05-31 | 2018-12-04 | 西北矿冶研究院 | Method for efficiently recovering zinc from zinc leaching residues |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102352445A (en) | Zinc leached residue hot acid reduction leaching method | |
| CN102094126B (en) | Process for smelting zinc with wet method of high temperature and high acid-jarosite iron removing-iron vitriol slag pickling by two stages | |
| CN102312083A (en) | Method for extracting zinc indium and recovering iron from high-iron high indium zinc concentrate | |
| CN109207740A (en) | The extraction vanadium method of vanadium-bearing slag of high calcium and high phosphor | |
| CN102251122B (en) | Silver-extracting process of lead-silver slag acidification roasting leaching | |
| CN103952572B (en) | Method for optimizing zinc hydrometallurgy hot acid leaching process by pressure leaching | |
| CN109112314B (en) | A method for comprehensively recovering zinc-lead-tin from tin-rich lead-zinc soot by two-stage countercurrent sulfuric acid leaching | |
| CN104060106B (en) | From bismuth-containing solution, extract bismuth with solvent extration and prepare the method for bismuth oxide | |
| CN102690947A (en) | Smelting process of silver concentrate | |
| CN102676805B (en) | Low grade zinc concentrate associated lead and silver recovery process | |
| CN102399997A (en) | A method of combined zinc smelting and smelting | |
| CN103014344A (en) | Method for two-stage iron settlement in high-temperature peracid zinc leachate | |
| CN104212976A (en) | Method for recovering silver from wet zinc smelting waste slag | |
| CN102002598A (en) | Method for recovering copper and cobalt from cobalt-containing copper converter slag | |
| CN103409621A (en) | Combined leaching method for high-iron zinc sulfide concentrate and high-iron zinc calcine leaching slag | |
| CN103276207B (en) | Method for preparing titanium solution by wet-processing on vanadium-titanium magnetite concentrates | |
| CN102660690A (en) | Method for recovering valuable metal from zinc hydrometallurgy high acid leach residue | |
| WO2025145819A1 (en) | Waste residue treatment method for recovering pb and zn from residues of zinc hydrometallurgy by means of full wet process | |
| CN103898339A (en) | Method for improving extraction and separation efficiency of nickel and cobalt in biological leaching liquid | |
| CN107739834A (en) | The method of processing sintering ash | |
| CN104561565A (en) | Method for reduction leaching of cadmium from zinc smelting neutral leaching residues | |
| CN105755283B (en) | The method of valuable metal in villaumite Selectively leaching lateritic nickel ore | |
| CN103740932B (en) | A kind for the treatment of process of high indium high-iron zinc sulfide concentrate | |
| CN103882222A (en) | Method for extracting nickel and cobalt from nickel laterite by chloride roasting | |
| CN106044726B (en) | The method of tellurium in low-temp low-pressure counterflow leaching copper anode mud |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120215 |