CN102021261A - Method for preparing iron ingots and co-producing cadmium sulfate and copper sulfate from mixed iron slag through arc method - Google Patents
Method for preparing iron ingots and co-producing cadmium sulfate and copper sulfate from mixed iron slag through arc method Download PDFInfo
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- CN102021261A CN102021261A CN 201010518877 CN201010518877A CN102021261A CN 102021261 A CN102021261 A CN 102021261A CN 201010518877 CN201010518877 CN 201010518877 CN 201010518877 A CN201010518877 A CN 201010518877A CN 102021261 A CN102021261 A CN 102021261A
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- cadmium
- iron
- copper sulfate
- scum
- mixed
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 31
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 20
- 229910000365 copper sulfate Inorganic materials 0.000 title claims abstract description 15
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 title claims abstract description 14
- QCUOBSQYDGUHHT-UHFFFAOYSA-L cadmium sulfate Chemical compound [Cd+2].[O-]S([O-])(=O)=O QCUOBSQYDGUHHT-UHFFFAOYSA-L 0.000 title claims abstract 4
- 239000002893 slag Substances 0.000 title abstract description 8
- 229910000331 cadmium sulfate Inorganic materials 0.000 title abstract 2
- 239000002699 waste material Substances 0.000 claims abstract description 13
- 238000004821 distillation Methods 0.000 claims abstract description 6
- 150000001875 compounds Chemical class 0.000 claims abstract description 3
- LQWCJVQHKJHKDZ-UHFFFAOYSA-N cadmium sulfuric acid Chemical compound [Cd].S(O)(O)(=O)=O LQWCJVQHKJHKDZ-UHFFFAOYSA-N 0.000 claims description 10
- 239000000047 product Substances 0.000 claims description 6
- 238000005260 corrosion Methods 0.000 claims description 5
- 230000007797 corrosion Effects 0.000 claims description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims 6
- 239000000706 filtrate Substances 0.000 claims 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims 2
- YKYOUMDCQGMQQO-UHFFFAOYSA-L cadmium dichloride Chemical compound Cl[Cd]Cl YKYOUMDCQGMQQO-UHFFFAOYSA-L 0.000 claims 2
- 239000007795 chemical reaction product Substances 0.000 claims 2
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims 2
- 239000012065 filter cake Substances 0.000 claims 2
- 238000010438 heat treatment Methods 0.000 claims 2
- 239000012535 impurity Substances 0.000 claims 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims 1
- 229910002092 carbon dioxide Inorganic materials 0.000 claims 1
- 239000001569 carbon dioxide Substances 0.000 claims 1
- 229910002091 carbon monoxide Inorganic materials 0.000 claims 1
- 229960003280 cupric chloride Drugs 0.000 claims 1
- 238000001914 filtration Methods 0.000 claims 1
- 235000012054 meals Nutrition 0.000 claims 1
- 239000000155 melt Substances 0.000 claims 1
- 238000002156 mixing Methods 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 230000000630 rising effect Effects 0.000 claims 1
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052793 cadmium Inorganic materials 0.000 abstract description 3
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 abstract description 3
- 239000010949 copper Substances 0.000 abstract description 3
- 229910052802 copper Inorganic materials 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000010814 metallic waste Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 238000011282 treatment Methods 0.000 abstract description 3
- 238000010306 acid treatment Methods 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract 1
- 239000005083 Zinc sulfide Substances 0.000 description 7
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 7
- 229910052984 zinc sulfide Inorganic materials 0.000 description 6
- 229910021591 Copper(I) chloride Inorganic materials 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- OXBLHERUFWYNTN-UHFFFAOYSA-M copper(I) chloride Chemical compound [Cu]Cl OXBLHERUFWYNTN-UHFFFAOYSA-M 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- CJDPJFRMHVXWPT-UHFFFAOYSA-N barium sulfide Chemical compound [S-2].[Ba+2] CJDPJFRMHVXWPT-UHFFFAOYSA-N 0.000 description 1
- 239000010428 baryte Substances 0.000 description 1
- 229910052601 baryte Inorganic materials 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- PIJPYDMVFNTHIP-UHFFFAOYSA-L lead sulfate Chemical compound [PbH4+2].[O-]S([O-])(=O)=O PIJPYDMVFNTHIP-UHFFFAOYSA-L 0.000 description 1
- 238000005649 metathesis reaction Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention belongs to the technical field of the comprehensive utilization of the waste lead slag obtained by the preparation of lithopone in the inorganic chemical industry and particularly relates to a method for preparing iron ingots and co-producing cadmium sulfate and copper sulfate from mixed iron slag through the arc method. The main technical scheme adopted by the invention is as follows: the technology of the arc furnace is adopted to extract heavy metals in the waste residue of lithopone, high-temperature treatment, acid treatment and distillation treatment are performed on the waste residue in turn to obtain iron, copper, cadmium and valuable compounds; and by adopting the invention, the heavy metal waste residue can be completely used and the pollution of heavy metals to the environment can be reduced; and the valuable products can be prepared and the invention has remarkable social benefit and economical benefit.
Description
Technical field
The present invention relates to inorganic chemical industry zinc sulfide white and make the comprehensive utilization technique field of scrap lead slag, especially a kind of arc process is mixed the method that scum is produced ingot iron co-producing sulfuric acid cadmium and copper sulfate.
Technical background
Zinc sulfide white is being commonly called as of white senior pigment lithopone, and its main raw materials for production are zinc oxide, sulfuric acid, barite and hard coal.Be to carry out replacement(metathesis)reaction and make by barium sulphide and zinc sulphide.In the process that zinc sulfide white is produced, produce the various heavy waste residue, solid useless as lead skim, cadmia, cadmium slag, barium slag, cinder etc., annual generation accumulation has about last kiloton approximately, not only polluted agricultural land, environment, the growth that harms the crops, but also caused lead, pick, copper, zinc and germanium in the waste residue, sowed, pluged with molten metal, the waste of several metal element such as inscription.Resource and contaminate environment are so not only wasted in the most air storage of present this waste residue or fill a vacancy, pave the way.People have carried out a large amount of research for this reason, study producing multiple product in 1973 01 phases " fine-chemical intermediate " with the zinc sulfide white waste residue, " Hunan chemical industry " 1992 the 22nd the 1st phase of volume has also been reported " research of producing lead sulfate from zinc sulfide white acidleach waste residue ", but all also just be in theoretical investigation in the literary composition, also actual without comparison processing and utilize method does not have arc process to mix the relevant report that scum is produced the method for ingot iron co-producing sulfuric acid cadmium and copper sulfate at present yet.
Summary of the invention
The invention provides and a kind ofly can not only as clean as a pennyly gulp down heavy metal waste slag, the arc process that can make valuable article is again mixed the method that scum is produced ingot iron co-producing sulfuric acid cadmium and copper sulfate.
To achieve the above object, technical scheme of the present invention is:
Arc process is mixed the method that scum is produced ingot iron co-producing sulfuric acid cadmium and copper sulfate, comprises being prepared as follows step:
Steps A, arc process is mixed scum put reverberatory furnace into, slowly heating makes temperature rise to 1600 ℃～1700 ℃; The compound of scum and iron thereof melts the molten iron that becomes happy and harmonious state and trickles out, and molten iron is used to produce ingot iron, and carbon monoxide that the inside is remaining and carbon dioxide evaporate with the rising of temperature in the reverberatory furnace; Remaining waste residue ejects and is cooled to next process and carries out deep processing and extract rare metal salts;
Step B, waste residue that pyroprocessing in the steps A is remaining are ground into 80～120 purpose meal with pulverizer earlier, transfer to then in first corrosion-resistant reactor, react with hydrochloric acid with pure mass ratio 1: 0.91;
Step C, step B gained reaction product is filtered with first strainer, muriatic filter cake impurity that obtains carrying secretly and clarifying cupric chloride, Cadmium chloride fine powder filtrate, filter cake impurity is transferred to another operation and is carried out deep processing;
Step D, send filtering the filtrate obtain among the step C into second corrosion-resistant reactor, carry out chemical reaction with pure mass ratio 1: 0.23～0.63 with sulfuric acid; Reaction generates the mixing solutions of Cadmium Sulphate, copper sulfate and hydrochloric acid;
The gained reaction product is filtered with second strainer among step e, the step D, the filter cake impurity burning that obtains, buried;
The filtrate of gained is passed through underpressure distillation device and cooling tower successively in step F, the step e, carries out underpressure distillation and cooling, successively obtains Cadmium Sulphate product and copper sulfate product.
Wherein, the slowly heating in the described steps A is slowly to heat with heat up 2 ℃～5 ℃ speed of per minute.
In the described step F, the remaining hydrochloric acid of distillation returns in first corrosion-resistant reactor described in the steps A and recycles.
The present invention has used the technology of electric arc furnace to extract heavy metal in the zinc sulfide white waste residue, waste residue is passed through pyroprocessing, acid treatment and distillation treatment process successively, thereby make fe, copper, cadmium element and, valuable compounds therefrom, the present invention can as clean as a pennyly gulp down heavy metal waste slag, alleviates the pollution of heavy metal to environment; Can make value product again, have remarkable social benefit and economic benefit; Especially technology and production unit are simple, are a kind of relatively actual processing and utilize method.
Reaction principle of the present invention is:
CuO+2HCl＝＝＝＝CuCl
2+H
2O
CdO+2HCl＝＝＝＝CdCl
2+H
2O
CuCl
2+H
2SO
4＝＝＝＝CuSO
4+2HCl
CdCl
2+H
2SO
4＝＝＝＝CdSO
4+2HCl
Description of drawings
Fig. 1 is that arc process is mixed the process flow sheet that scum is produced the method for ingot iron co-producing sulfuric acid cadmium and copper sulfate;
Wherein:
The 1-reverberatory furnace, 2-ingot iron, 3-pulverizer, 4-first corrosion-resistant reactor, 5-first strainer, 6-second corrosion-resistant reactor, 7-second strainer, 8-underpressure distillation device, 9-cooling tower, 10-Cadmium Sulphate product, 11-copper sulfate product.
Concrete embodiment
Embodiment 1
Arc process is mixed the method that scum is produced ingot iron co-producing sulfuric acid cadmium and copper sulfate, comprises being prepared as follows step:
Steps A, arc process is mixed scum put reverberatory furnace 1 into, slowly heating (per minute heat up 2 ℃ speed slowly heat) makes temperature rise to 1600 ℃; The compound of scum and iron thereof melted the molten iron that becomes happy and harmonious state and trickled out this moment, and molten iron is used to produce ingot iron 2; Remaining carbon monoxide of the inside part and carbon dioxide also evaporate with the rising of temperature in the reverberatory furnace 1, and remaining waste residue ejects and is cooled to next process and carries out deep processing and extract rare metal salts;
Step B, waste residue (in 500kg pure zirconia copper and 200kg pure zirconia cadmium) that pyroprocessing in the steps A is remaining, earlier be ground into 80 purpose meal with pulverizer 3, transfer to 4 li of first corrosion-resistant reactors then, react with pure mass ratio 1: 0.91 and hydrochloric acid;
Step C, step B gained reaction product is filtered with first strainer 5, obtain carrying secretly muriatic filter cake impurity and clarifying 839.72kg cupric chloride, 686.84kg Cadmium chloride fine powder filtrate, filter cake impurity is transferred to another operation and is carried out deep processing;
Step D, send filtering the filtrate (in Cadmium chloride fine powder) obtain among the step C into second corrosion-resistant reactor 6, carry out chemical reaction at 1: 0.23 with pure mass ratio with sulfuric acid; Reaction generates the mixing solutions of 223.97kg Cadmium Sulphate, 314.24kg copper sulfate and hydrochloric acid;
The gained reaction product is filtered with second strainer 7 among step e, the step D, the filter cake impurity burning that obtains, buried;
The filtrate of gained is passed through underpressure distillation device 8 and cooling tower 9 successively in step F, the step e, carries out underpressure distillation and cooling, successively obtains 377.62kg Cadmium Sulphate product 10 and 491.61kg copper sulfate product 11; The remaining hydrochloric acid of distillation returns in first corrosion-resistant reactor 4 described in the steps A and recycles.
Arc process is mixed the method that scum is produced ingot iron co-producing sulfuric acid cadmium and copper sulfate, comprises being prepared as follows step:
Steps A, arc process is mixed scum put reverberatory furnace 1 into, slowly heating (per minute heat up 4 ℃ speed slowly heat) makes temperature rise to 1650 ℃; The compound of scum and iron thereof melted the molten iron that becomes happy and harmonious state and trickled out this moment, and molten iron is used to produce ingot iron 2; Remaining carbon monoxide of the inside part and carbon dioxide also evaporate with the rising of temperature in the reverberatory furnace 1, and remaining waste residue ejects and is cooled to next process and carries out deep processing and extract rare metal salts;
Step B, waste residue (in 500kg pure zirconia copper and 200kg pure zirconia cadmium) that pyroprocessing in the steps A is remaining, earlier be ground into 100 purpose meal with pulverizer 3, transfer to 4 li of first corrosion-resistant reactors then, react with pure mass ratio 1: 0.91 and hydrochloric acid;
Step C, step B gained reaction product is filtered with first strainer 5, obtain carrying secretly muriatic filter cake impurity and clarifying 839.72kg cupric chloride, 686.84kg Cadmium chloride fine powder filtrate, filter cake impurity is transferred to another operation and is carried out deep processing;
Step D, send filtering the filtrate (in Cadmium chloride fine powder) obtain among the step C into second corrosion-resistant reactor 6, carry out chemical reaction at 1: 0.43 with pure mass ratio with sulfuric acid; Reaction generates the mixing solutions of 418.72kg Cadmium Sulphate, 587.49kg copper sulfate and hydrochloric acid;
The gained reaction product is filtered with second strainer 7 among step e, the step D, the filter cake impurity burning that obtains, buried;
The filtrate of gained is passed through underpressure distillation device 8 and cooling tower 9 successively in step F, the step e, carries out underpressure distillation and cooling, successively obtains 707.53kg Cadmium Sulphate product 10 and 919.09kg copper sulfate product 11; The remaining hydrochloric acid of distillation returns in first corrosion-resistant reactor 4 described in the steps A and recycles.
Arc process is mixed the method that scum is produced ingot iron co-producing sulfuric acid cadmium and copper sulfate, comprises being prepared as follows step:
Steps A, arc process is mixed scum put reverberatory furnace 1 into, slowly heating (per minute heat up 5 ℃ speed slowly heat) makes temperature rise to 1700 ℃; The compound of scum and iron thereof melted the molten iron that becomes happy and harmonious state and trickled out this moment, and molten iron is used to produce ingot iron 2; Remaining carbon monoxide of the inside part and carbon dioxide also evaporate with the rising of temperature in the reverberatory furnace 1, and remaining waste residue ejects and is cooled to next process and carries out deep processing and extract rare metal salts;
Step B, waste residue (in 500kg pure zirconia copper and 200kg pure zirconia cadmium) that pyroprocessing in the steps A is remaining, earlier be ground into 120 purpose meal with pulverizer 3, transfer to 4 li of first corrosion-resistant reactors then, react with pure mass ratio 1: 0.91 and hydrochloric acid;
Step C, step B gained reaction product is filtered with first strainer 5, obtain carrying secretly muriatic filter cake impurity and clarifying 839.72kg cupric chloride, 686.84kg Cadmium chloride fine powder filtrate, filter cake impurity is transferred to another operation and is carried out deep processing;
Step D, send filtering the filtrate (in Cadmium chloride fine powder) obtain among the step C into second corrosion-resistant reactor 6, carry out chemical reaction at 1: 0.63 with pure mass ratio with sulfuric acid; Reaction generates the mixing solutions of 613.47kg Cadmium Sulphate, 860.74kg copper sulfate and hydrochloric acid;
The gained reaction product is filtered with second strainer 7 among step e, the step D, the filter cake impurity burning that obtains, buried;
The filtrate of gained is passed through underpressure distillation device 8 and cooling tower 9 successively in step F, the step e, carries out underpressure distillation and cooling, successively obtains 1037.34kg Cadmium Sulphate product 10 and 1346.58kg copper sulfate product 11; The remaining hydrochloric acid of distillation returns in first corrosion-resistant reactor 4 described in the steps A and recycles.
The foregoing description is preferred embodiment of the present invention, is not to be used for limiting the scope of the present invention, so all equivalences of being done with described feature of claim of the present invention and principle change or modify, all should be included within the claim scope of the present invention.
Claims (3)
1. an arc process is mixed the method that scum is produced ingot iron co-producing sulfuric acid cadmium and copper sulfate, it is characterized in that, comprises being prepared as follows step:
Steps A, arc process is mixed scum put reverberatory furnace (1) into, slowly heating makes temperature rise to 1600 ℃～1700 ℃; The compound of scum and iron thereof melts the molten iron that becomes happy and harmonious state and trickles out, and molten iron is used to produce ingot iron (2); Carbon monoxide that the inside is remaining and carbon dioxide evaporate with the rising of the interior temperature of reverberatory furnace (1), and remaining waste residue ejects cooling;
Step B, waste residue that pyroprocessing in the steps A is remaining are ground into 80～120 purpose meal with pulverizer (3) earlier, transfer to first corrosion-resistant reactor (4) lining then, react with pure mass ratio 1: 0.91 and hydrochloric acid;
Step C, step B gained reaction product is filtered with first strainer (5), obtain carrying secretly muriatic filter cake impurity and clarifying cupric chloride, Cadmium chloride fine powder filtrate;
Step D, send filtering the filtrate obtain among the step C into second corrosion-resistant reactor (6), carry out chemical reaction with pure mass ratio 1: 0.23～0.63 with sulfuric acid; Reaction generates the mixing solutions of Cadmium Sulphate, copper sulfate and hydrochloric acid;
The gained reaction product is filtered with second strainer (7) among step e, the step D, the filter cake impurity burning that obtains, buried;
The filtrate of gained is passed through underpressure distillation device (8) and cooling tower (9) successively in step F, the step e, carries out underpressure distillation and cooling, successively obtains Cadmium Sulphate product (10) and copper sulfate product (11).
2. arc process according to claim 1 is mixed the method that scum is produced ingot iron co-producing sulfuric acid cadmium and copper sulfate, it is characterized in that, slowly heating in the described steps A is that the speed with 2 ℃～5 ℃ of per minute intensifications slowly heats.
3. arc process according to claim 1 is mixed the method that scum is produced ingot iron co-producing sulfuric acid cadmium and copper sulfate, it is characterized in that, in the described step F, the remaining hydrochloric acid of distillation returns in first corrosion-resistant reactor described in the steps A and recycles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010518877A CN102021261B (en) | 2010-10-25 | 2010-10-25 | Method for preparing iron ingots and co-producing cadmium sulfate and copper sulfate from mixed iron slag through arc method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010518877A CN102021261B (en) | 2010-10-25 | 2010-10-25 | Method for preparing iron ingots and co-producing cadmium sulfate and copper sulfate from mixed iron slag through arc method |
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| Publication Number | Publication Date |
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| CN102021261A true CN102021261A (en) | 2011-04-20 |
| CN102021261B CN102021261B (en) | 2012-10-24 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1084895A (en) * | 1992-09-30 | 1994-04-06 | 武汉市冶炼科研所 | Ammonia dipping precipitation is handled the technology of low-grade copper ashes or copper oxide ore |
| CN1095110A (en) * | 1993-05-11 | 1994-11-16 | 封瑞 | Method with direct production of cupric sulfate from cupric oxide ore |
| WO2007075112A1 (en) * | 2005-12-27 | 2007-07-05 | Obchestvo S Ogranichennoy Otvetstvennostju Promishlennaya Kompaniya 'tekhnologiya Metallov | Metal and alloy melting device |
-
2010
- 2010-10-25 CN CN201010518877A patent/CN102021261B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1084895A (en) * | 1992-09-30 | 1994-04-06 | 武汉市冶炼科研所 | Ammonia dipping precipitation is handled the technology of low-grade copper ashes or copper oxide ore |
| CN1095110A (en) * | 1993-05-11 | 1994-11-16 | 封瑞 | Method with direct production of cupric sulfate from cupric oxide ore |
| WO2007075112A1 (en) * | 2005-12-27 | 2007-07-05 | Obchestvo S Ogranichennoy Otvetstvennostju Promishlennaya Kompaniya 'tekhnologiya Metallov | Metal and alloy melting device |
Non-Patent Citations (1)
| Title |
|---|
| 《湖南化工》 19920301 李文郁等 从立德粉酸浸废渣制取硫酸铅的研究 32-34 , 第1期 2 * |
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Address after: 523000, room five, building 508, Jinhai building, Dongcheng District Tong Road, Dongguan, Guangdong Patentee after: Wang Jiaxing Address before: Wushi Village Primary School in Dongguan city of Dongcheng District province Guangdong road 523000 Lane 1 No. 6 main mountain Patentee before: Wang Jiaxing |
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Effective date of registration: 20130814 Address after: 226300 No. 14, Tong Hai Road, Tongzhou District Development Zone, Jiangsu, Nantong Patentee after: Huashan Nantong Industrial Co., Ltd. Address before: 523000, room five, building 508, Jinhai building, Dongcheng District Tong Road, Dongguan, Guangdong Patentee before: Wang Jiaxing |
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