CN102230087A - Method for recovering copper from lead smelting furnace slag - Google Patents
Method for recovering copper from lead smelting furnace slag Download PDFInfo
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- CN102230087A CN102230087A CN2011101729123A CN201110172912A CN102230087A CN 102230087 A CN102230087 A CN 102230087A CN 2011101729123 A CN2011101729123 A CN 2011101729123A CN 201110172912 A CN201110172912 A CN 201110172912A CN 102230087 A CN102230087 A CN 102230087A
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- sulphuric acid
- dilute sulphuric
- copper
- slag
- smelting slag
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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 invention discloses a method for recovering copper from lead smelting furnace slag. According to the method, firstly, lead smelting furnace slag discharged from a pyrogenic lead smelting furnace is quenched with dilute sulfuric acid and soaked in dilute sulfuric acid in a slag pond after quenching; in the step of soaking the lead smelting furnace slag in dilute sulfuric acid, metal copper in the lead smelting furnace slag is dissolved in dilute sulfuric acid to produce copper sulfate; when the concentration of copper sulfate in the slag pond reaches 18 to 22 g/L, the solution in the slag pond is pumped to a replacement pond; and then iron chips are added to generate replacement reaction so that sponge copper is replaced out of the copper sulfate solution. As a method for recovering nonferrous metals in waste slag with low investment, the method provided by the invention can recover metal copper from the lead smelting furnace slag to improve the utilization rate of resources and increase the benefits of enterprises. Therefore, the method provided by the invention has remarkable economic and social benefits.
Description
Technical field
The present invention relates to a kind of treatment process of refining the plumbum smelting slag that produces in the plumbous industry, particularly relate to a kind of method of metal copper that from plumbum smelting slag, reclaims.
Background technology
In the technological process of pyrometallurgical smelting of lead, produced a large amount of plumbum smelting slags, and contained a certain amount of metallic copper in the plumbum smelting slag.At present, owing to lack effective recovery technology, the metallic copper in the plumbum smelting slag is not carried out efficient recovery, thereby caused the energy dissipation of a large amount of metallic coppers.
At present, along with petering out of resource, the minimizing day by day of profit margin, industrial and mining enterprises should reclaim the nonferrous metal resource in the waste residue as far as possible, improve the utilization ratio of resource, become the common problem that the heavy non-ferrous metal smelting industry faces.For the common problem that can fine solution faces, need the recovery technology problem of some heavy metals in the relevant heavy non-ferrous metal smelting process of development research.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of method of metal copper that reclaims from plumbum smelting slag.The inventive method is a kind of under the less situation of investment, reclaims the method for the non-ferrous metal in the waste residue, and the metallic copper in can the efficient recovery plumbum smelting slag improves resource utilization, increases the performance of enterprises.
In order to address the above problem, the technical solution used in the present invention is:
The invention provides a kind of method that reclaims copper from plumbum smelting slag, described recovery method may further comprise the steps:
A, the plumbum smelting slag that will discharge in the pyrometallurgical smelting of lead stove adopt dilute sulphuric acid to carry out shrend, and the mass percentage concentration of described dilute sulphuric acid is 8～12%, and the consumption of dilute sulphuric acid is 700～900m
3/ h, the temperature of plumbum smelting slag is 1200～1300 ℃ when carrying out shrend, the temperature of dilute sulphuric acid is 75～85 ℃;
B, plumbum smelting slag carry out adopting dilute sulphuric acid to soak in slag bath after the shrend, and the mass percentage concentration of described dilute sulphuric acid is 8～12%, and the ratio of add-on is 2.2～2.8 m between dilute sulphuric acid and the plumbum smelting slag
3: 1 ton, temperature is 75～85 ℃ when soaking, and soak time is 3～5h, and the metallic copper in the employing dilute sulphuric acid immersion plumbum smelting slag process in the plumbum smelting slag is dissolved in the dilute sulphuric acid, thereby generates copper sulfate;
C, the concentration of copper sulfate that generates in slag bath reach 18～22g/L, solution pump in the slag bath is delivered in the displacement pool, add iron filings then and carry out replacement(metathesis)reaction, the add-on of iron filings is 1.2～1.5 times of the theoretical requirement of replacement(metathesis)reaction, displace the copper in the copper-bath, obtain the copper sponge product at last.
According to the above-mentioned method that reclaims copper from plumbum smelting slag, the mass percentage concentration of dilute sulphuric acid described in the step a is 10%; The consumption of described dilute sulphuric acid is 800m
3/ h; The temperature of described plumbum smelting slag is 1250 ℃, and the temperature of dilute sulphuric acid is 80 ℃.
According to the above-mentioned method that reclaims copper from plumbum smelting slag, the mass percentage concentration of the described dilute sulphuric acid of step b is 10%, and the ratio of add-on is 2.5 m between dilute sulphuric acid and the plumbum smelting slag
3: 1 ton; Temperature is 80 ℃ during described the immersion, and soak time is 4h.
According to the above-mentioned method that reclaims copper from plumbum smelting slag, the concentration of copper sulfate that generates in slag bath described in the step c reaches 20g/L; The add-on of described iron filings is 1.2 times of the theoretical requirement of replacement(metathesis)reaction.
Positive beneficial effect of the present invention:
1, utilizes the metallic copper of the inventive method in can the efficient recovery plumbum smelting slag.Adopt the inventive method to reclaim the plumbous metallic copper of smelting in the road, its cost of investment is low.
2, adopt the inventive method that the metallic copper in its plumbum smelting slag has been carried out effective recycling, thereby improved the utilization ratio of resource, increased the performance of enterprises.Thereby the present invention has remarkable economic efficiency and social benefit.
Four, embodiment:
Following examples only in order to further specify the present invention, do not limit content of the present invention.
Embodiment 1:
The present invention reclaims the method for copper from plumbum smelting slag, the detailed step of described recovery method is as follows:
A, the plumbum smelting slag that will discharge in the pyrometallurgical smelting of lead stove adopt dilute sulphuric acid to carry out shrend, and the mass percentage concentration of described dilute sulphuric acid is 10%, and the consumption of dilute sulphuric acid is 800m
3/ h, the temperature of plumbum smelting slag is 1250 ℃ when carrying out shrend, the temperature of dilute sulphuric acid is 80 ℃;
B, plumbum smelting slag carry out adopting dilute sulphuric acid to soak in slag bath after the shrend, and the mass percentage concentration of described dilute sulphuric acid is 10%, and the consumption of dilute sulphuric acid is 40m
3, by the amount of the plumbum smelting slag that soaked be 16 tons (dilute sulphuric acid and plumbum smelting slag between the two the ratio of add-on be 2.5 m
3: 1 ton), temperature is 80 ℃ when soaking, and soak time is 4h, and the metallic copper in the employing dilute sulphuric acid immersion plumbum smelting slag process in the plumbum smelting slag is dissolved in the dilute sulphuric acid, thereby generates copper sulfate;
C, the concentration of copper sulfate that generates in slag bath reach 20g/L, solution pump in the slag bath is delivered in the displacement pool, add iron filings then and carry out replacement(metathesis)reaction, the add-on of iron filings is 1.2 times of the theoretical requirement of replacement(metathesis)reaction, displace the copper in the copper-bath, obtain the copper sponge product at last, remaining waste water send sewage works to handle.
Embodiment 2:
The present invention reclaims the method for copper from plumbum smelting slag, the detailed step of described recovery method is as follows:
A, the plumbum smelting slag that will discharge in the pyrometallurgical smelting of lead stove adopt dilute sulphuric acid to carry out shrend, and the mass percentage concentration of described dilute sulphuric acid is 8%, and the consumption of dilute sulphuric acid is 900m
3/ h, the temperature of plumbum smelting slag is 1200 ℃ when carrying out shrend, the temperature of dilute sulphuric acid is 75 ℃;
B, plumbum smelting slag carry out adopting dilute sulphuric acid to soak in slag bath after the shrend, and the mass percentage concentration of described dilute sulphuric acid is 8%, and the consumption of dilute sulphuric acid is 44.8m
3, by the amount of the plumbum smelting slag that soaked be 16 tons (dilute sulphuric acid and plumbum smelting slag between the two the ratio of add-on be 2.8 m
3: 1 ton), temperature is 78 ℃ when soaking, and soak time is 4.5h, and the metallic copper in the employing dilute sulphuric acid immersion plumbum smelting slag process in the plumbum smelting slag is dissolved in the dilute sulphuric acid, thereby generates copper sulfate;
C, the concentration of copper sulfate that generates in slag bath reach 18g/L, solution pump in the slag bath is delivered in the displacement pool, add iron filings then and carry out replacement(metathesis)reaction, the add-on of iron filings is 1.3 times of the theoretical requirement of replacement(metathesis)reaction, displace the copper in the copper-bath, obtain the copper sponge product at last, remaining waste water send sewage works to handle.
Embodiment 3:
The present invention reclaims the method for copper from plumbum smelting slag, the detailed step of described recovery method is as follows:
A, the plumbum smelting slag that will discharge in the pyrometallurgical smelting of lead stove adopt dilute sulphuric acid to carry out shrend, and the mass percentage concentration of described dilute sulphuric acid is 12%, and the consumption of dilute sulphuric acid is 700m
3/ h, the temperature of plumbum smelting slag is 1300 ℃ when carrying out shrend, the temperature of dilute sulphuric acid is 85 ℃;
B, plumbum smelting slag carry out adopting dilute sulphuric acid to soak in slag bath after the shrend, and the mass percentage concentration of described dilute sulphuric acid is 12%, and the consumption of dilute sulphuric acid is 35.2m
3, by the amount of the plumbum smelting slag that soaked be 16 tons (dilute sulphuric acid and plumbum smelting slag between the two the ratio of add-on be 2.2 m
3: 1 ton), temperature is 82 ℃ when soaking, and soak time is 3.8h, and the metallic copper in the employing dilute sulphuric acid immersion plumbum smelting slag process in the plumbum smelting slag is dissolved in the dilute sulphuric acid, thereby generates copper sulfate;
C, the concentration of copper sulfate that generates in slag bath reach 22g/L, solution pump in the slag bath is delivered in the displacement pool, add iron filings then and carry out replacement(metathesis)reaction, the add-on of iron filings is 1.2 times of the theoretical requirement of replacement(metathesis)reaction, displace the copper in the copper-bath, obtain the copper sponge product at last, remaining waste water send sewage works to handle.
Embodiment 4:
The present invention reclaims the method for copper from plumbum smelting slag, the detailed step of described recovery method is as follows:
A, the plumbum smelting slag that will discharge in the pyrometallurgical smelting of lead stove adopt dilute sulphuric acid to carry out shrend, and the mass percentage concentration of described dilute sulphuric acid is 9%, and the consumption of dilute sulphuric acid is 850m
3/ h, the temperature of plumbum smelting slag is 1280 ℃ when carrying out shrend, the temperature of dilute sulphuric acid is 82 ℃;
B, plumbum smelting slag carry out adopting dilute sulphuric acid to soak in slag bath after the shrend, and the mass percentage concentration of described dilute sulphuric acid is 9%, and the consumption of dilute sulphuric acid is 43m
3, by the amount of the plumbum smelting slag that soaked be 16 tons (dilute sulphuric acid and plumbum smelting slag between the two the ratio of add-on be 2.7 m
3: 1 ton), the temperature when soaking is 82 ℃, and soak time is 3.5h, and the metallic copper in the employing dilute sulphuric acid immersion plumbum smelting slag process in the plumbum smelting slag is dissolved in the dilute sulphuric acid, thereby generates copper sulfate;
C, the concentration of copper sulfate that generates in slag bath reach 19g/L, solution pump in the slag bath is delivered in the displacement pool, add iron filings then and carry out replacement(metathesis)reaction, the add-on of iron filings is 1.4 times of the theoretical requirement of replacement(metathesis)reaction, displace the copper in the copper-bath, obtain the copper sponge product at last, remaining waste water send sewage works to handle.
Embodiment 5:
The present invention reclaims the method for copper from plumbum smelting slag, the detailed step of described recovery method is as follows:
A, the plumbum smelting slag that will discharge in the pyrometallurgical smelting of lead stove adopt dilute sulphuric acid to carry out shrend, and the mass percentage concentration of described dilute sulphuric acid is 11%, and the consumption of dilute sulphuric acid is 780m
3/ h, the temperature of plumbum smelting slag is 1280 ℃ when carrying out shrend, the temperature of dilute sulphuric acid is 80 ℃;
B, plumbum smelting slag carry out adopting dilute sulphuric acid to soak in slag bath after the shrend, and the mass percentage concentration of described dilute sulphuric acid is 11%, and the consumption of dilute sulphuric acid is 38.4m
3, by the amount of the plumbum smelting slag that soaked be 16 tons (dilute sulphuric acid and plumbum smelting slag between the two the ratio of add-on be 2.4 m
3: 1 ton), temperature is 80 ℃ when soaking, and soak time is 4h, and the metallic copper in the employing dilute sulphuric acid immersion plumbum smelting slag process in the plumbum smelting slag is dissolved in the dilute sulphuric acid, thereby generates copper sulfate;
C, the concentration of copper sulfate that generates in slag bath reach 20g/L, solution pump in the slag bath is delivered in the displacement pool, add iron filings then and carry out replacement(metathesis)reaction, the add-on of iron filings is 1.2 times of the theoretical requirement of replacement(metathesis)reaction, displace the copper in the copper-bath, obtain the copper sponge product at last, remaining waste water send sewage works to handle.
Claims (4)
1. method that reclaims copper from plumbum smelting slag is characterized in that described recovery method may further comprise the steps:
A, the plumbum smelting slag that will discharge in the pyrometallurgical smelting of lead stove adopt dilute sulphuric acid to carry out shrend, and the mass percentage concentration of described dilute sulphuric acid is 8～12%, and the consumption of dilute sulphuric acid is 700～900m
3/ h, the temperature of plumbum smelting slag is 1200～1300 ℃ when carrying out shrend, the temperature of dilute sulphuric acid is 75～85 ℃;
B, plumbum smelting slag carry out adopting dilute sulphuric acid to soak in slag bath after the shrend, and the mass percentage concentration of described dilute sulphuric acid is 8～12%, and the ratio of add-on is 2.2～2.8 m between dilute sulphuric acid and the plumbum smelting slag
3: 1 ton, temperature is 75～85 ℃ when soaking, and soak time is 3～5h, and the metallic copper in the employing dilute sulphuric acid immersion plumbum smelting slag process in the plumbum smelting slag is dissolved in the dilute sulphuric acid, thereby generates copper sulfate;
C, the concentration of copper sulfate that generates in slag bath reach 18～22g/L, solution pump in the slag bath is delivered in the displacement pool, add iron filings then and carry out replacement(metathesis)reaction, the add-on of iron filings is 1.2～1.5 times of the theoretical requirement of replacement(metathesis)reaction, displace the copper in the copper-bath, obtain the copper sponge product at last.
2. the method that from plumbum smelting slag, reclaims copper according to claim 1, it is characterized in that: the mass percentage concentration of dilute sulphuric acid described in the step a is 10%; The consumption of described dilute sulphuric acid is 800m
3/ h; The temperature of described plumbum smelting slag is 1250 ℃, and the temperature of dilute sulphuric acid is 80 ℃.
3. the method that from plumbum smelting slag, reclaims copper according to claim 1, it is characterized in that: the mass percentage concentration of the described dilute sulphuric acid of step b is 10%, the ratio of add-on is 2.5 m between dilute sulphuric acid and the plumbum smelting slag
3: 1 ton; Temperature is 80 ℃ during described the immersion, and soak time is 4h.
4. the method that reclaims copper from plumbum smelting slag according to claim 1 is characterized in that: the concentration of copper sulfate that generates in slag bath described in the step c reaches 20g/L; The add-on of described iron filings is 1.2 times of the theoretical requirement of replacement(metathesis)reaction.
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| CN201110172912A CN102230087B (en) | 2011-06-24 | 2011-06-24 | Method for recovering copper from lead smelting furnace slag |
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| CN201110172912A CN102230087B (en) | 2011-06-24 | 2011-06-24 | Method for recovering copper from lead smelting furnace slag |
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| CN102230087A true CN102230087A (en) | 2011-11-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104404258A (en) * | 2014-12-05 | 2015-03-11 | 攀枝花火凤凰再生资源回收利用有限责任公司 | Comprehensive utilization process of iron ore sintering dust ash |
| CN108007816A (en) * | 2017-12-18 | 2018-05-08 | 清远先导材料有限公司 | The detection method of active metal simple substance in a kind of hard zinc |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4002544A (en) * | 1975-04-03 | 1977-01-11 | Outokumpu Oy | Hydrometallurgical process for the recovery of valuable components from the anode slime produced in the electrolytical refining of copper |
| US6440194B1 (en) * | 2000-11-21 | 2002-08-27 | Fenicem Minerals Inc. | Recovery of precious metals from metal alloys produced aluminothermically from base metal smelter slag |
| CN101818250A (en) * | 2009-02-27 | 2010-09-01 | 浙江华友钴业股份有限公司 | Method for processing cobalt-copper-iron alloy |
-
2011
- 2011-06-24 CN CN201110172912A patent/CN102230087B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4002544A (en) * | 1975-04-03 | 1977-01-11 | Outokumpu Oy | Hydrometallurgical process for the recovery of valuable components from the anode slime produced in the electrolytical refining of copper |
| US6440194B1 (en) * | 2000-11-21 | 2002-08-27 | Fenicem Minerals Inc. | Recovery of precious metals from metal alloys produced aluminothermically from base metal smelter slag |
| CN101818250A (en) * | 2009-02-27 | 2010-09-01 | 浙江华友钴业股份有限公司 | Method for processing cobalt-copper-iron alloy |
Non-Patent Citations (1)
| Title |
|---|
| 《铜业工程》 19941231 陈根太 从水淬渣中综合回收铜、钴、锌的试验研究 23-26 1-4 , 第03期 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104404258A (en) * | 2014-12-05 | 2015-03-11 | 攀枝花火凤凰再生资源回收利用有限责任公司 | Comprehensive utilization process of iron ore sintering dust ash |
| CN104404258B (en) * | 2014-12-05 | 2016-06-08 | 攀枝花火凤凰再生资源回收利用有限责任公司 | The comprehensive utilization process of agglomeration for iron mine smoke dust |
| CN108007816A (en) * | 2017-12-18 | 2018-05-08 | 清远先导材料有限公司 | The detection method of active metal simple substance in a kind of hard zinc |
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| CN102230087B (en) | 2012-10-17 |
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Address after: 459000, Jiaozuo City, Henan province Jiyuan City Applicant after: HENAN GOLD RAKEM LEAD CO., LTD. Address before: 459000, Jiaozuo City, Henan province Jiyuan City Applicant before: Jiyuan Jinlin Smelts Co.,Ltd. |
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