CN102417988A - Process for comprehensively utilizing copper sulphonium and slag produced during bismuth smelting - Google Patents
Process for comprehensively utilizing copper sulphonium and slag produced during bismuth smelting Download PDFInfo
- Publication number
- CN102417988A CN102417988A CN2011103405379A CN201110340537A CN102417988A CN 102417988 A CN102417988 A CN 102417988A CN 2011103405379 A CN2011103405379 A CN 2011103405379A CN 201110340537 A CN201110340537 A CN 201110340537A CN 102417988 A CN102417988 A CN 102417988A
- Authority
- CN
- China
- Prior art keywords
- slag
- copper
- bismuth
- tail gas
- output
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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
-
- 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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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- Manufacture And Refinement Of Metals (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a process for smelting and producing copper sulphonium and slag by comprehensively utilizing bismuth. The process comprises the following steps of: 1) mechanically smashing the copper sulphonium and the slag produced during bismuth smelting, respectively adding water and leaching; 2) carrying out filter pressing and drying on leaching slag and then mixing and pelletizing, smelting in a tight blast furnace to produce copper matte, secondary slag, smoke and tail gas; and 3) smelting copper with the copper matte, recycling bismuth, lead and stibium with the smoke, producing cement with the secondary slag, absorbing SO2 in the tail gas with leachate obtained in the step 1), and discharging the tail gas after the standard is reached and Na2SO3, Na2S2O3 and NaHSO3 are produced. In the process disclosed by the invention, all the elements in the copper sulphonium and the slag which are produced during bismuth smelting are comprehensively recycled, and no secondary pollution is caused, thus the process is an environmentally friendly technology.
Description
Technical field
The present invention relates to a kind of copper matte regulus from bismuth melting output, the slag, the comprehensive reutilization valuable metal wherein and the method for element belong to comprehensive utilization of bismuth smelting waste and environment protection Pollution abatement technology field.
Background technology
The bismuth pyrometallurgical smelting generally adopts bismuth concentrate, bismuth-containing material to be equipped with flux (like iron filings, soda ash, fluorite etc.) and a spot of raw coal of going back of some amount, melting in reverberatory furnace or converter, and smelted product mainly contains: thick bismuth, flue dust, copper matte regulus and slag.The staple content of copper matte regulus is: Fe 31-37%, and S 12-23%, Na 12%, Cu 1.5-8.1%, Pb0.14-4.28%, Bi 0.19-2.58%, Sb 0.025-0.53%, Ag 0.18-0.35%, SiO
21-2%, CaO1.5-2%; The staple content of slag is: SiO
25.7-43%, FeO 8.4-31%, CaO 2-20%, Na
2O11-20%, S 5.2-9.1%, Bi 0.12-0.67%, Pb 2.9-5.0%, As+Sb 0.45-0.63%.
At present, for containing the high copper matte regulus of Cu, some producer adopts blast furnace smelting to reclaim Cu, Ag, contains Na but produce
2S, Na
2O waste residue and SO
2Waste gas causes secondary pollution; For containing low copper matte regulus of Cu grade and slag, generally stack on the spot, both contaminate environment had been wasted resource again.Therefore, the copper matte regulus of comprehensive reutilization bismuth melting output, slag are very important.
Summary of the invention
The objective of the invention is: a kind of leaching, melting, absorption technology linked together are provided, and comprehensive reutilization valuable metal and element wherein from the copper matte regulus of bismuth melting output, slag makes full use of resource, reduces waste sludge discharge, curbs environmental pollution.
For addressing the above problem, basic design of the present invention is:
A kind of copper matte regulus of bismuth melting output, technology of slag of fully utilizing may further comprise the steps:
1) with after the copper matte regulus of bismuth melting output, the slag mechanical disintegration, adds water extraction respectively;
2) ball is made in the leached mud mixing behind pressure-filteration drying, advances airtight blast furnace smelting output matte, secondary slag, flue dust and tail gas;
3) matte is used for copper metallurgy, and flue dust is used to reclaim bismuth, lead, antimony, and the secondary slag is used to produce cement, and tail gas absorbs SO with the leach liquor that obtains in the step 1)
2, output Na
2SO
3, Na
2S
2O
3And NaHSO
3Qualified discharge.
In the step 1) with copper matte regulus, slag mechanical disintegration to the granularity >=80 orders of bismuth melting output.
Adding in the water extraction process of step 1): copper matte regulus or slag, be 1: 2 with the liquid-solid volume ratio of water, the agitation leach time is no more than 24 hours under the normal temperature, preferred 6-10 hour.
Step 2) in, leached mud mixes behind pressure-filteration drying to moisture≤10wt%.
Step 2) in, the slag leached mud is 1-2 with the copper matte regulus leached mud according to weight ratio: 1 mixes.
Step 2) in, use apparatus for making pearl ball to be pressed into the pelletizing of particle diameter as 10-12cm, pelletizing and coke (burnt rate about 15%) advance airtight blast furnace smelting, output matte, secondary slag and flue dust, tail gas.
Copper matte regulus or slag after the present invention pulverizes add water extraction, and the chemical reaction that slag leaches the operation generation is mainly: Na
2O+H
2O → 2NaOH; Other compositions are in leached mud; Na in the copper matte regulus
2S when leaching with Na
2The S form is soluble in water; Other compositions are in leached mud.Therefore, in the absorption tower, absorb the SO in the tail gas with leach liquor
2, chemical reaction is: 6Na
2S+10SO
2+ 7H
2O → 4H
2S+6NaHSO
3+ 3Na
2S
2O
3, 2NaOH+SO
2→ Na
2SO
3+ H
2O absorbs back tail gas qualified discharge; Absorption liquid is through condensing crystal, output Na
2SO
3, Na
2S
2O
3And NaHSO
3Product.
The matte that technology of the present invention obtains is the main raw material of copper metallurgy, wherein principal element content: Cu 15-20%, and S22-24%, Fe 38-42% can direct marketing arrive copper smelting plant copper metallurgy.
The secondary slag staple content that technology of the present invention obtains: SiO
234-39%, Fe 24-29%, CaO 8-13% can be used as grog and is sold to cement mill production cement.
The flue dust that technology of the present invention obtains is sold to the smeltery and reclaims bismuth, lead, antimony.
The present invention both comprehensive reutilization the copper matte regulus of bismuth melting output, all elements in the slag, can not cause secondary pollution again, be a kind of environment-protective process technology.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment:
Be intended to further specify the present invention below in conjunction with embodiment, and unrestricted the present invention.
Embodiment 1
1) with behind the copper matte regulus of bismuth melting output, slag mechanical disintegration to 80 order, respectively according to copper matte regulus or slag, be 1: 2 with the liquid-solid volume ratio of water, add water and stir leaching 10 hours;
2) slag leached mud and copper matte regulus leached mud are to mix at 2: 1 according to weight ratio; Behind pressure-filteration drying, process the pelletizing of particle diameter 10cm; Pelletizing and coke (burnt rate about 15%) advance airtight blast furnace smelting output matte, secondary slag and flue gas, and flue gas obtains flue dust and tail gas through bag-type dusting; The tail gas staple is SO
2
3) matte is used for copper metallurgy, and flue dust is used to reclaim bismuth, lead, antimony, and the secondary slag all is used to produce cement, and tail gas absorbs SO with the leach liquor that obtains in the step 1)
2, output Na
2SO
3, Na
2S
2O
3And NaHSO
3Qualified discharge.
Copper is about 85% with the direct yield of silver.Direct yield is meant from copper matte regulus, slag and begins that to the yield of output matte product, direct yield depends on the content height and the suitable proportioning of copper matte regulus and slag.
Embodiment 2
1) with behind the copper matte regulus of bismuth melting output, slag mechanical disintegration to 80 order, respectively according to copper matte regulus or slag, be 1: 2 with the liquid-solid volume ratio of water, added water extraction 20 hours;
2) slag leached mud and copper matte regulus leached mud are to mix at 1: 1 according to weight ratio; Behind pressure-filteration drying, process the pelletizing of particle diameter 12cm; Pelletizing and coke (burnt rate about 15%) advance airtight blast furnace smelting output matte, secondary slag and flue gas, and flue gas obtains flue dust and tail gas through bag-type dusting; The tail gas staple is SO
2
3) matte is used for copper metallurgy, and flue dust is used to reclaim bismuth, lead, antimony, and the secondary slag all is used to produce cement, and tail gas absorbs SO with the leach liquor that obtains in the step 1)
2, output Na
2SO
3, Na
2S
2O
3And NaHSO
3Qualified discharge.
Copper is about 85% with the direct yield of silver.
Claims (6)
1. one kind fully utilizes the copper matte regulus of bismuth melting output, the technology of slag, it is characterized in that, may further comprise the steps:
1) with after the copper matte regulus of bismuth melting output, the slag mechanical disintegration, adds water extraction respectively;
2) leached mud mixed ball behind pressure-filteration drying advances airtight blast furnace smelting output matte, secondary slag, flue dust and tail gas;
3) matte is used for copper metallurgy, and flue dust is used to reclaim bismuth, lead, antimony, and the secondary slag is used to produce cement, and tail gas absorbs SO with the leach liquor that obtains in the step 1)
2, output Na
2SO
3, Na
2S
2O
3And NaHSO
3Back qualified discharge.
2. technology according to claim 1 is characterized in that,
In the step 1) with copper matte regulus, slag mechanical disintegration to the granularity >=80 orders of bismuth melting output.
3. technology according to claim 1 is characterized in that,
Adding in the water extraction process of step 1): copper matte regulus or slag, be 1: 2 with the solid-liquid volume ratio of water, the agitation leach time is no more than 24 hours under the normal temperature.
4. technology according to claim 1 is characterized in that,
Step 2) in, leached mud through pressure-filteration drying to moisture≤10wt%.
5. technology according to claim 1 is characterized in that,
Step 2) in, the slag leached mud is 1-2 with the copper matte regulus leached mud according to weight ratio: 1 mixes.
6. technology according to claim 1 is characterized in that,
Step 2) in, use apparatus for making pearl ball to be pressed into the pelletizing of particle diameter as 10-12cm, pelletizing and coke advance airtight blast furnace smelting, output matte, secondary slag and flue dust, tail gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103405379A CN102417988B (en) | 2011-11-02 | 2011-11-02 | Process for comprehensively utilizing copper sulphonium and slag produced during bismuth smelting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103405379A CN102417988B (en) | 2011-11-02 | 2011-11-02 | Process for comprehensively utilizing copper sulphonium and slag produced during bismuth smelting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102417988A true CN102417988A (en) | 2012-04-18 |
| CN102417988B CN102417988B (en) | 2013-06-19 |
Family
ID=45942631
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103405379A Expired - Fee Related CN102417988B (en) | 2011-11-02 | 2011-11-02 | Process for comprehensively utilizing copper sulphonium and slag produced during bismuth smelting |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1800421A (en) * | 2005-12-02 | 2006-07-12 | 河南豫光金铅股份有限公司 | Recovering process of valent metal from crude bismuth |
| CN101403045A (en) * | 2008-11-17 | 2009-04-08 | 河南豫光金铅股份有限公司 | Synthetic recovery method for plumbum anode slime slag rich in bismuth |
| CN101928836A (en) * | 2010-09-07 | 2010-12-29 | 湖南昭山冶金化工有限公司 | Method for comprehensively recovering valuable metals from bismuth-containing complex materials |
-
2011
- 2011-11-02 CN CN2011103405379A patent/CN102417988B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1800421A (en) * | 2005-12-02 | 2006-07-12 | 河南豫光金铅股份有限公司 | Recovering process of valent metal from crude bismuth |
| CN101403045A (en) * | 2008-11-17 | 2009-04-08 | 河南豫光金铅股份有限公司 | Synthetic recovery method for plumbum anode slime slag rich in bismuth |
| CN101928836A (en) * | 2010-09-07 | 2010-12-29 | 湖南昭山冶金化工有限公司 | Method for comprehensively recovering valuable metals from bismuth-containing complex materials |
Non-Patent Citations (2)
| Title |
|---|
| 李怀仁: "从铜转炉烟尘中回收铅、铜、铋的工艺实践", 《云南冶金》 * |
| 李立清: "从含铜铋的炉渣中回收有价金属", 《环境保护》 * |
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| CN102417988B (en) | 2013-06-19 |
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Granted publication date: 20130619 Termination date: 20161102 |