CN105132708A - Process method for sufficiently recycling precious metal from copper dross and copper matte - Google Patents
Process method for sufficiently recycling precious metal from copper dross and copper matte Download PDFInfo
- Publication number
- CN105132708A CN105132708A CN201510654081.1A CN201510654081A CN105132708A CN 105132708 A CN105132708 A CN 105132708A CN 201510654081 A CN201510654081 A CN 201510654081A CN 105132708 A CN105132708 A CN 105132708A
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- CN
- China
- Prior art keywords
- lead
- silver
- precious metal
- matte
- copper
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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 relates to a process method for sufficiently recycling precious metal from copper dross and copper matte and belongs to the technical field of precious metal recycle. The process method comprises the steps that when the copper dross is smelted through a reverberatory furnace, sodium carbonate is added firstly, and the copper dross is reduced and smelted into the copper matte and wet lead; surface slags are discharged; then most wet lead is discharged; a layer of base lead is left, high-lead and low-silver lead refining slags are added for refining, and high-grade lead oxidation refining slags are obtained; and the sodium carbonate is added again, powdered coal and scrap iron are added for conducting reduction smelting, and a large amount of gold and a large amount of silver enter the base lead. By means of the process method, the content of gold and silver in the copper matte can be reduced, the precious metal is made to enter the wet lead for conducting electrolytic recovery again, and it is guaranteed that valuable metal can be recycled sufficiently by enterprises.
Description
Technical field
The present invention relates to a kind of processing method of abundant recovery copper dross slag matte precious metal, belong to expensive golden recovery technology field.
Background technology
When the copper dross slag of plumbous electrolysis plant carries out melting by reverberatory furnace, if when silver content is higher in scum silica frost, then there will be situation very high containing gold and silver amount in matte.Because the technique of blister copper is not generally refined by plumbous manufacturing enterprise, therefore can only sell matte outward, gold and silver content higher in matte is because sell the loss causing enterprise profit at discount.
Summary of the invention
The technical problem to be solved in the present invention is the above-mentioned shortcoming for existing technique, propose a kind of processing method of abundant recovery copper dross slag matte precious metal, to reduce the gold and silver content in matte, make precious metal enter lead bullion and carry out electrolytic recovery again, ensure that enterprise fully reclaims valuable metal.
The present invention adopts following measure to implement: a kind of processing method of abundant recovery copper dross slag matte precious metal, when reverberatory furnace carries out copper dross slag melting, first adds soda ash, copper dross slag retailoring is become matte and lead bullion; Bleed off surperficial slag; Then by the plumbous mouth in the end of reverberatory furnace, lead bullion higher for argentiferous is released major part; Leaving lead at the bottom of one deck prevents matte from condensing in furnace bottom; Then the plumbous refining slag adding high plumbous low silver carries out refining, to the plumbous oxidation refining slag of the higher-grade of institute's output, again adds soda ash, fine coal, iron filings carry out retailoring; Because plumbous oxidation refining slag argentiferous is very low, therefore the lead bullion silver content of output reduces greatly; This low silver-colored lead bullion is taken away a large amount of gold and silver and is entered in end lead in sinking watching, and precious metal, at alternate reequilibrate, makes matte contain gold and silver precious metal and greatly reduces; Gold and silver precious metal carries out electrolytic recovery again by end lead.
The present invention is by design optimization technique, by adopting when melting copper scum silica frost, after slag and end lead are released major part, add the plumbous refining slag of high plumbous low silver, melting again, take away precious metal by low silver-colored lead bullion when sedimentation and enter end lead, precious metal is at alternate reequilibrate, make the gold and silver in matte carry out electrolytic recovery again by end lead, reach the object of abundant recover silver content.Present invention process principle is simple, easy to operate, greatly increases enterprise's productivity effect.
Compared with the prior art, the feature of present invention process:
1) carry out on the basis of original technique, simple to operation, without the need to the change of significantly reforming equipment and flow process;
2) the various scum silica frost higher containing gold and silver and other assorted material is gone for;
3) with low cost, utilize and natively need the plumbous refining slag of melting in copper dross slag reverberatory furnace to operate, additionally significantly do not increase auxiliary material and drop into;
4) because plumbous refining slag argentiferous is low, therefore precious metal can well be walked by. g., lead tape, and refining is reclaimed again, and benefit is very high.
Embodiment
The present invention's specific embodiment is described further, but is not restriction the present invention.
Embodiment: a kind of processing method of abundant recovery copper dross slag matte precious metal, adopts following measure to implement: by first by copper dross slag by after adding soda ash when melting its retailoring being become matte and lead bullion, surperficial slag is bled off; Then by the plumbous mouth in the end, lead bullion higher for argentiferous is released, general lead bullion does not need to put only, leaving lead at the bottom of the one deck accounting for total mass 5-20% prevents matte from condensing in furnace bottom, then adds the plumbous refining slag refining of high plumbous low silver, in the plumbous oxidation refining slag of the higher-grade of output, again add soda ash; Add fine coal simultaneously, iron filings carry out retailoring, because plumbous oxidation refining slag argentiferous is very low, therefore the lead bullion argentiferous of output will reduce greatly, and lead bullion is taken away a large amount of gold and silver and entered in end lead in sinking watching, make matte contain the precious metals such as gold and silver greatly to reduce, reach the object fully reclaiming precious metal.
Claims (1)
1. fully reclaim a processing method for copper dross slag matte precious metal, it is characterized in that: when reverberatory furnace carries out copper dross slag melting, first add soda ash, copper dross slag retailoring is become matte and lead bullion; Bleed off surperficial slag; Then by the plumbous mouth in the end of reverberatory furnace, lead bullion higher for argentiferous is released major part; Leaving lead at the bottom of one deck prevents matte from condensing in furnace bottom; Then the plumbous refining slag adding high plumbous low silver carries out refining, to the plumbous oxidation refining slag of the higher-grade of institute's output, again adds soda ash, fine coal, iron filings carry out retailoring; Because plumbous oxidation refining slag argentiferous is very low, therefore the lead bullion silver content of output reduces greatly; This low silver-colored lead bullion is taken away a large amount of gold and silver and is entered in end lead in sinking watching, and precious metal, at alternate reequilibrate, makes matte contain gold and silver precious metal and greatly reduces; Gold and silver precious metal carries out electrolytic recovery again by end lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510654081.1A CN105132708B (en) | 2015-10-12 | 2015-10-12 | A kind of abundant process for reclaiming copper dross slag matte noble metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510654081.1A CN105132708B (en) | 2015-10-12 | 2015-10-12 | A kind of abundant process for reclaiming copper dross slag matte noble metal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105132708A true CN105132708A (en) | 2015-12-09 |
| CN105132708B CN105132708B (en) | 2017-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510654081.1A Expired - Fee Related CN105132708B (en) | 2015-10-12 | 2015-10-12 | A kind of abundant process for reclaiming copper dross slag matte noble metal |
Country Status (1)
| Country | Link |
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| CN (1) | CN105132708B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109022809A (en) * | 2018-07-27 | 2018-12-18 | 郴州雄风环保科技有限公司 | A kind of organic acid sodium-iron chip filter reduction melting copper dross slag new process |
| US11319613B2 (en) | 2020-08-18 | 2022-05-03 | Enviro Metals, LLC | Metal refinement |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101358286A (en) * | 2008-09-25 | 2009-02-04 | 昆明理工大学 | Method for treating copper scum using converter |
| CN101525694A (en) * | 2009-04-17 | 2009-09-09 | 深圳市中金岭南有色金属股份有限公司韶关冶炼厂 | Separation process for material containing lead, antimony, copper, bismuth and silver |
| CN102373336A (en) * | 2011-11-03 | 2012-03-14 | 昆明理工大学 | Method for separating copper and silver from dross produced by producing copper from smelting lead |
| CN102643996A (en) * | 2012-05-23 | 2012-08-22 | 云南驰宏锌锗股份有限公司 | Method for producing lead bullion by means of copper dross side-blown smelting |
| CN102747231A (en) * | 2012-07-06 | 2012-10-24 | 赵志强 | Method for treating copper dross by induction electric furnace |
| CN103924094A (en) * | 2014-04-16 | 2014-07-16 | 济源市万洋冶炼(集团)有限公司 | Method for treating copper dross |
-
2015
- 2015-10-12 CN CN201510654081.1A patent/CN105132708B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101358286A (en) * | 2008-09-25 | 2009-02-04 | 昆明理工大学 | Method for treating copper scum using converter |
| CN101525694A (en) * | 2009-04-17 | 2009-09-09 | 深圳市中金岭南有色金属股份有限公司韶关冶炼厂 | Separation process for material containing lead, antimony, copper, bismuth and silver |
| CN102373336A (en) * | 2011-11-03 | 2012-03-14 | 昆明理工大学 | Method for separating copper and silver from dross produced by producing copper from smelting lead |
| CN102643996A (en) * | 2012-05-23 | 2012-08-22 | 云南驰宏锌锗股份有限公司 | Method for producing lead bullion by means of copper dross side-blown smelting |
| CN102747231A (en) * | 2012-07-06 | 2012-10-24 | 赵志强 | Method for treating copper dross by induction electric furnace |
| CN103924094A (en) * | 2014-04-16 | 2014-07-16 | 济源市万洋冶炼(集团)有限公司 | Method for treating copper dross |
Non-Patent Citations (1)
| Title |
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| 陈海清: "铜浮渣苏打-铅精矿熔炼新工艺研究", 《有色金属（冶炼部分）》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109022809A (en) * | 2018-07-27 | 2018-12-18 | 郴州雄风环保科技有限公司 | A kind of organic acid sodium-iron chip filter reduction melting copper dross slag new process |
| CN109022809B (en) * | 2018-07-27 | 2020-05-22 | 郴州雄风环保科技有限公司 | Process for reducing and smelting copper dross by using sodium organic acid-scrap iron method |
| US11319613B2 (en) | 2020-08-18 | 2022-05-03 | Enviro Metals, LLC | Metal refinement |
| US11578386B2 (en) | 2020-08-18 | 2023-02-14 | Enviro Metals, LLC | Metal refinement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105132708B (en) | 2017-07-07 |
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Granted publication date: 20170707 Termination date: 20211012 |