CN1102673A - Method of electrolysis extracting copper from material containing cupric sulfide - Google Patents
Method of electrolysis extracting copper from material containing cupric sulfide Download PDFInfo
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- CN1102673A CN1102673A CN94115472A CN94115472A CN1102673A CN 1102673 A CN1102673 A CN 1102673A CN 94115472 A CN94115472 A CN 94115472A CN 94115472 A CN94115472 A CN 94115472A CN 1102673 A CN1102673 A CN 1102673A
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- copper
- electrolysis
- temperature
- fusing
- material containing
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- 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 process for extracting copper by electrolyzing materials containing copper sulfide such as copper sulfide ore concentrate, lead matte or scum, and nickel matte features pickling raw material, smelting, casting plate, electrolysis and copper output. After electrolysis, the copper is educed from cathode and sulfur is in anode mud. Its advantages include high quality of electrolytic copper or copper powder, no pollution of SO2.
Description
The method of electrolysis extracting copper from material containing cupric sulfide relates to a kind of production technique of electrolytic copper, is used for Containing Sulfur copper material: copper production is proposed in the electrolysis as copper sulfide concentrate, lead matte or scum silica frost, high ice nickel leached mud etc.
At present, to the copper-extracting process of Containing Sulfur copper material, adopt pyrometallurgical smelting to become matte to blow into the method for electrolysis production electrolytic copper behind the blister copper more more.Lead matte or scum silica frost then adopted bessemerize into black copper electrolysis production electrolytic copper.The aforesaid method complex process, energy consumption is higher, and the sulphur in the cupric sulfide is transformed into the sulfur dioxide pollution environment.Also have and adopt ammonia to soak or the acid leaching-extraction electrodeposition process is handled lead matte, plumbous scum silica frost is produced electrolytic copper, its process complexity, equipment requirements strictness.
The objective of the invention is the shortcoming that exists in the prior art in order to overcome, the method for inventing the electrolysis extracting copper from material containing cupric sulfide that a kind of technology is simple, facility investment is few, pollution-free, good in economic efficiency.
The present invention is achieved by the following technical solutions.
The method of electrolysis extracting copper from material containing cupric sulfide is characterized in that: the production process of electrolysis extracting copper from material containing cupric sulfide is: with Containing Sulfur copper material pickling pre-treatment → fusing → casting system positive plate → electrolysis → copper.
The pretreated processing condition of pickling are: sulfuric acid concentration 5～20%(V/V), temperature are 40～90 ℃, and the time is 1～4 hour, cupric＞28% of pickling postcure copper material, iron content＜6%, PH＜2.
Fusing can be added with Na
2CO
3, SiO
2Carry out under the situation, temperature of fusion is 800～1200 ℃.
The casting back is incubated 10～48 hours and makes positive plate under 350～750 ℃ of temperature.
Electrolytic solution is CuSO
4+ H
2SO
4, the electrolysis process condition is:
Electrolysis temperature: 40～80 ℃
The electrolytic solution cupric: 30～50g/l contains H
2SO
4: 100～200g/l
Bath voltage: 1.8～2.5V cathode current density: 150～250A/m
2
Diaphragm case is arranged on the positive plate during electrolysis.
The acid that the pickling pre-treatment is used also can be hydrochloric acid, phosphoric acid.
Method technology of the present invention is simple, facility investment is few, do not produce sulfur dioxide pollution, the reliable in quality of electrolytic copper, and cost is low, and is profitable.
Below the present invention is described in detail.
At first Containing Sulfur copper material is done the pickling pre-treatment, melt, water the laggard capable wet method electrolysis copper of cast plate then.The pretreated purpose of pickling is in order to remove impurity effectively, the iron that contains in the Containing Sulfur lead materials particularly, make its content＜6%, so just can guarantee the unlikely brittle failure of the positive plate of casting and influence electrolytic carrying out, the processing condition of pickling are: sulfuric acid concentration 5～20%(V/V), 40～90 ℃ of temperature, 1～4 hour time.Operation for guaranteeing that electrolysis is effectively economic simultaneously, Containing Sulfur copper material cupric answers＞28%.Can add Na therein for further deironing during fusing
2CO
3And SiO
2, can make the iron of part remnants and other impurity enter into slag.Temperature of fusion does not coexist 800～1200 ℃ because of the material composition.After the fusing it being cast, and make positive plate after being incubated 10～48 hours under 350～750 ℃ the temperature, is CuSO at electrolytic solution then
4+ H
2SO
4Electrolysis in the electrolyzer.
Electrode reaction is:
Electrolysis process condition: electrolysis temperature: 40～80 ℃
The electrolytic solution cupric: 30～50g/l contains H
2SO
4: 100～200g/l
Bath voltage: 1.8～2.5V
The catholyte flow density is 150～250A/m
2
Electrolyticly to carry out smoothly in order keeping, diaphragm case to be arranged on the positive plate, to guarantee the cathode copper quality.
Separate out copper at negative electrode after the electrolysis, sulphur enters in the anode sludge, and this technology can be used for producing electrolytic copper or copper powder, and the electrolytic copper of production can reach the standard of 1# copper, and the power consumption of cathode copper per ton is suitable with copper electrodeposition current consumption, is a kind of copper extraction method of practical and effective Containing Sulfur copper material.
Embodiment table 1
Composition after the pickling of numbering raw material composition
Cu??Pb??Ni??Fe??S??Cu??Pb??Ni??Fe??S
1??34.25??4.18??-??15.88??18.23??36.47??5.03??-??4.36??17.11
2?27.61??33.04??-??10.07??16.69??28.78??33.88??-??5.81??14.23
3??35.40??-??20.11??13.45??22.67??36.13??-??21.27??3.21??19.38
Continuous table 1
Temperature of fusion holding temperature soaking time electrolysis temperature
(℃)??(℃)??(h)??(℃)
970??500??10??50
800??350??20??60
1200??700??40??60
Continuous table 1
Annotate: the surplus of composition is other element in the table.
Claims (1)
1, the method for electrolysis extracting copper from material containing cupric sulfide is characterized in that: the production process of electrolysis extracting copper from material containing cupric sulfide is: with Containing Sulfur copper material pickling pre-treatment → fusing → casting system positive plate → electrolysis → copper,
A. the processing condition of pickling are:
Sulfuric acid concentration: 5～20% (V/V)
Temperature: 40～90 ℃
Time is: 1～4 hour pH＜2
Copper content＞28% of pretreated Containing Sulfur copper material, iron content＜6%,
B. fusing can be added with Na
2CO
3, SiO
2Carry out under the situation, temperature of fusion is 800～1200 ℃,
C. cast after the fusing, and under 350～750 ℃, be incubated 10～48 hours,
D. electrolytic electrolytic solution composition is CuSO
4+ H
2SO
4,
The electrolysis process condition is:
Electrolysis temperature: 40～80 ℃
The electrolytic solution cupric: 30～50g/l contains H
2SO
4: 100～200g/l
Bath voltage: 1.8～2.5V
Cathode current density: 150～250A/m
2
Diaphragm case is arranged on the positive plate during electrolysis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94115472A CN1032704C (en) | 1994-08-31 | 1994-08-31 | Method of electrolysis extracting copper from material containing cupric sulfide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94115472A CN1032704C (en) | 1994-08-31 | 1994-08-31 | Method of electrolysis extracting copper from material containing cupric sulfide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1102673A true CN1102673A (en) | 1995-05-17 |
| CN1032704C CN1032704C (en) | 1996-09-04 |
Family
ID=5037510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94115472A Expired - Fee Related CN1032704C (en) | 1994-08-31 | 1994-08-31 | Method of electrolysis extracting copper from material containing cupric sulfide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1032704C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1071382C (en) * | 1996-09-10 | 2001-09-19 | 恩索恩Omi公司 | Polyacrylic acid additive for copper electrolytic purification and copper electrolytic metallurgy |
| CN103469255A (en) * | 2013-09-09 | 2013-12-25 | 梧州漓佳铜棒有限公司 | Device and method for recycling copper anode plate soaking liquid |
| CN108360025A (en) * | 2018-05-02 | 2018-08-03 | 东北大学 | A kind of method that aqueous solution electrolysis solid metallic sulfide prepares metal |
| CN109338406A (en) * | 2018-12-05 | 2019-02-15 | 昆明理工大学 | A kind of electroreduction metal sulfide method and device |
-
1994
- 1994-08-31 CN CN94115472A patent/CN1032704C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1071382C (en) * | 1996-09-10 | 2001-09-19 | 恩索恩Omi公司 | Polyacrylic acid additive for copper electrolytic purification and copper electrolytic metallurgy |
| CN103469255A (en) * | 2013-09-09 | 2013-12-25 | 梧州漓佳铜棒有限公司 | Device and method for recycling copper anode plate soaking liquid |
| CN103469255B (en) * | 2013-09-09 | 2015-12-23 | 重庆潼双机械制造有限公司 | The recycling device of copper anode plate foam washing liquid and method |
| CN108360025A (en) * | 2018-05-02 | 2018-08-03 | 东北大学 | A kind of method that aqueous solution electrolysis solid metallic sulfide prepares metal |
| CN108360025B (en) * | 2018-05-02 | 2019-05-07 | 东北大学 | A kind of method that aqueous solution electrolysis solid metallic sulfide prepares metal |
| CN109338406A (en) * | 2018-12-05 | 2019-02-15 | 昆明理工大学 | A kind of electroreduction metal sulfide method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1032704C (en) | 1996-09-04 |
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