CN107130115B - A method of separating arsenic, antimony from silver-colored smelting ash - Google Patents
A method of separating arsenic, antimony from silver-colored smelting ash Download PDFInfo
- Publication number
- CN107130115B CN107130115B CN201710289303.3A CN201710289303A CN107130115B CN 107130115 B CN107130115 B CN 107130115B CN 201710289303 A CN201710289303 A CN 201710289303A CN 107130115 B CN107130115 B CN 107130115B
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- Prior art keywords
- antimony
- silver
- flue gas
- arsenic
- ash
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/02—Working-up flue dust
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B30/00—Obtaining antimony, arsenic or bismuth
- C22B30/02—Obtaining antimony
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B30/00—Obtaining antimony, arsenic or bismuth
- C22B30/04—Obtaining arsenic
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
-
- 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 method that the present invention relates to a kind of to separate arsenic, antimony from silver-colored smelting ash is by lead anode slurry and char particle, iron filings, soda ash, fluorite, and mix carries out melting in proportion；The flue gas of output is through the high silver-colored cigarette ash of waste heat boiler lowered temperature reclamation and bottom convertor is sent to carry out reduction melting；Flue gas is passed through the high antimony flue dust that cottrell cooling is collected in flue gas again, and to form needle antimony white and be sent into antimony rectification systems；The flue gas that electricity gathers dust out is passed through flash cold column cooling down again, through the high-arsenic dust in bag collection and collection flue gas, to realize that arsenic antimony separates.The present invention is improved resource utilization and metal recovery rate by the recovery and utilization technology of gold and silver and valuable metal in improve and perfect lead anode slurry, reduces environmental pollution.
Description
Technical field
The invention belongs to non-ferrous metallurgy fields, and in particular to a method of arsenic, antimony are separated from silver-colored smelting ash.
Background technique
During pyrogenic attack lead anode slurry, it will usually which output one kind contains arsenic, the very high flue gas of antimony, due to arsenic and its change
Closing object has stronger volatility, and arsenic is more contained by raw materials for metallurgy is enriched in all kinds of flue dust.These high arsenic flue gases also contain simultaneously
There are a large amount of other valuable metals, arsenic is removed from this kind of flue gas and recycle other valuable metals, is to improve resource utilization
Effective way.In processing flue gas very high containing arsenic, antimony, Main way is concentrated in the recycling of antimony and the improvement of arsenic, and arsenic antimony
For same major element, property is similar, therefore the separation of arsenic antimony is always the problem on smelting.
On 06 27th, 2012, Chinese invention patent application publication No.: CN102517449A disclosed a kind of smelting cigarette
Grey valuable element comprehensive recycling process is the recovery technology combined using wet process with pyrogenic process, by smelting ash plus sulfuric acid pulp
The lead silver bismuth slag that filters pressing is formed after two-stage leaching passes through melting, founding, electrolysis, refining, converter reduction melting, obtains lead bullion, ice
Copper, refined bismuth and silver-zine slag；Arsenic acid copper ashes after the heavy arsenic of supernatant addition Kocide SD is after sulfur dioxide sinks copper formation cupric arsenic
Liquid obtains arsenic and copper sulfate solution by condensing crystallizing separated and dissolved；Copper zinc cadmium liquid after heavy arsenic is respectively obtained by electrodeposition twice
Secondary zinc oxide is sequentially added after cathode copper and black copper, zinc powder carries out deacidification, high temperature copper removal, low temperature are except cadmium, obtained Spongy Cadmium warp
It crosses melting and obtains thick cadmium, zinc sulfate solution obtains white vitriol by concentration, crystallization.The technique is the de- thing to smelting ash
Post-processing.Complex process, liquid waste processing are difficult, result in waste of resources and serious environmental pollution.
Summary of the invention
In view of this, it is an object of the invention to propose a kind of method for separating arsenic, antimony from silver-colored smelting ash, by changing
Into with the recovery and utilization technology that improves gold and silver and valuable metal in lead anode slurry, improve resource utilization and metal recovery rate, subtract
Few environmental pollution.
Based on above-mentioned purpose, a kind of method separating arsenic, antimony from silver-colored smelting ash provided by the invention, including following step
It is rapid:
1) by lead anode slurry and char particle, iron filings, soda ash, fluorite, mix in proportion, then through helical feed to oxygen-enriched bottom
Blown converter carries out melting；
2) it is passed through oxygen into oxygen-enriched bottom-blowing furnace, melting 2-6 hours under conditions of temperature is 800-1200 DEG C, melting is complete
Smelting slag, flue gas and precious metals containing lead are obtained after, and the stockpiling of danger solid waste warehouse is sent after smelting slag is cooling；Precious metals containing lead passes through moulds in casting wheel ingot casting,
Then refinement oxide system is sent；
3) in step 2, in such a way that heterogeneity condensation temperature difference in flue dust is using fractional condensation, first by oxygen-enriched bottom
The flue gas of blown converter output is cooled to 400-410 DEG C through waste heat boiler recovery waste heat, because silver-colored cigarette ash is than great, most silver cigarette ash
It being collected in waste heat boiler, the silver-colored cigarette ash rate of recovery is greater than 98%, silver-colored cigarette ash through helical feed to raw material silo, send bottom convertor again
Carry out reduction melting；Flue gas after waste heat boiler cools down separation of Silver cigarette ash is sent into cottrell, continues cooling down to 375-
385 DEG C, most of high antimony flue dust translates into solid-state in flue dust, and formation needle antimony is white, collects recycling, and high antimony fume recovery rate is greater than
95%, high antimony flue dust is sent into antimony rectification systems and is further processed；The flue gas that cottrell comes out, which is passed through flash cold column, to be continued to be cooled to
100-200 DEG C, the high arsenic flue gas of wherein most is converted into solid-state, after through bag collection and collecting recycling, can sell or fill out outside on the spot
It buries, high arsenic off-gas recovery rate is greater than 98%；Residue gather dust tail gas after desulfurizing tower desulfurization and dedusting through smoke stack emission.
In the step 1) in proportion mix be char particle: 1-10%, iron filings: 0.1-2%, soda ash: 0.1-3%, fluorite:
0.01-0.03%, lead anode slurry: 85-95%.
A kind of method separating arsenic, antimony from silver-colored smelting ash provided by the present invention is using lead anode slurry as raw material, sufficiently
The characteristics of lead anode slurry is utilized, the recovery and utilization technology of gold and silver and valuable metal in improve and perfect lead anode slurry keep lead positive
Valuable metal in the mud of pole is reasonably recycled.Compared with the prior art, advantage includes: (1) Easy dosing, different
Enrichment, reduction, slag making, volatilization trend and the progress program and degree difference of element are obvious；(2) chemical reagent for needing to consume
Kind and quantity are few；(3) production efficiency and device efficiency are improved, it is very friendly to environment；(4) good to the adaptability of raw material；
(5) production cost is low.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.
Embodiment 1
A method of separating arsenic, antimony from silver-colored smelting ash, comprising the following steps:
(1) appropriate lead anode slurry and char particle, iron filings, soda ash, fluorite are taken, in proportion mix, mixed material ingredient is
(being calculated in mass percent): lead anode slurry 84%, char particle 11%, iron filings 2%, soda ash 3%, fluorite 0.03%, then through helical feed to richness
Oxygen bottom convertor carries out melting；
(2) it is passed through oxygen into oxygen-enriched bottom-blowing furnace, melting 6 hours under conditions of temperature is 1100 DEG C, after the completion of melting
Smelting slag, flue gas and precious metals containing lead are obtained, the stockpiling of danger solid waste warehouse is sent after smelting slag is cooling；Precious metals containing lead is by moulds in casting wheel ingot casting, then
Send refinement oxide system；
(3) in step (2), the flue gas of oxygen-enriched bottom-blowing furnace output is cooled to 400 DEG C through waste heat boiler recovery waste heat and is re-fed into
Cottrell gathers dust, and silver therein is because than great, most of silver cigarette ash is collected in waste heat boiler, then through helical feed to original
Bin area send bottom convertor to carry out reduction melting；The silver-colored cigarette ash rate of recovery is 98%；
(4) flue gas cool-down that will be fed into cottrell is cooled to 380 DEG C, and most of high antimony flue dust is converted into solid in flue gas
State, formation needle antimony is white, collects recycling, and be sent into antimony rectification systems；High antimony fume recovery rate is 95%；；
(5) flue gas that cottrell comes out is passed through flash cold column to continue to be cooled to 150 DEG C, the high arsenic flue gas of wherein most turns
Solid-state is turned to, after through bag collection and collecting recycling, can sell or fill out on the spot outside；High arsenic off-gas recovery rate is 98%.Residue is gathered dust tail
Through smoke stack emission after the washed tower desulfurization and dedusting of gas.
Embodiment 2
A method of separating arsenic, antimony from silver-colored smelting ash, comprising the following steps:
(1) appropriate lead anode slurry and char particle, iron filings, soda ash, fluorite are taken, in proportion mix, mixed material ingredient is
(being calculated in mass percent): lead anode slurry 88%, char particle 8%, iron filings 2%, soda ash 1.87%, fluorite 0.03%, then extremely through helical feed
Oxygen-enriched bottom-blowing furnace carries out melting；
(2) it is passed through oxygen into oxygen-enriched bottom-blowing furnace, melting 6 hours under conditions of temperature is 1000 DEG C, after the completion of melting
Smelting slag, flue gas and precious metals containing lead are obtained, the stockpiling of danger solid waste warehouse is sent after smelting slag is cooling；Precious metals containing lead is by moulds in casting wheel ingot casting, then
Send refinement oxide system；
(3) in step (2), the flue gas of oxygen-enriched bottom-blowing furnace output is cooled to 410 DEG C through waste heat boiler recovery waste heat and is re-fed into
Cottrell gathers dust, and silver therein is because than great, most of silver cigarette ash is collected in waste heat boiler, then through helical feed to original
Bin area send bottom convertor to carry out reduction melting；The silver-colored cigarette ash rate of recovery is 97%；
(4) flue gas cool-down that will be fed into cottrell is cooled to 390 DEG C, and most of high antimony flue dust is converted into solid in flue gas
State, formation needle antimony is white, collects recycling, and be sent into antimony rectification systems；High antimony fume recovery rate is 95%；
(5) flue gas that cottrell comes out is passed through flash cold column to continue to be cooled to 160 DEG C, the high arsenic flue gas of wherein most turns
Solid-state is turned to, after through bag collection and collecting recycling, can sell or fill out on the spot outside；High arsenic off-gas recovery rate is 97%.Residue is gathered dust tail
Through smoke stack emission after the washed tower desulfurization and dedusting of gas.
Claims (2)
1. a kind of method for separating arsenic, antimony from silver-colored smelting ash, it is characterised in that: the following steps are included:
1) by lead anode slurry and char particle, iron filings, soda ash, fluorite, mix in proportion, then through helical feed to oxygen-enriched bottom-blowing furnace
Carry out melting；
2) it is passed through oxygen into oxygen-enriched bottom-blowing furnace, melting 2-6 hours under conditions of temperature is 800-1200 DEG C, after the completion of melting
Smelting slag, flue gas and precious metals containing lead are obtained, the stockpiling of danger solid waste warehouse is sent after smelting slag is cooling；Precious metals containing lead is by moulds in casting wheel ingot casting, then
Send refinement oxide system；
3) in step 2, in such a way that heterogeneity condensation temperature difference in flue dust is using fractional condensation, first by oxygen-enriched bottom-blowing furnace
The flue gas of output is cooled to 400-410 DEG C through waste heat boiler recovery waste heat, and because silver-colored cigarette ash is than great, most silver cigarette ash is received
Collection is in waste heat boiler, and the silver-colored cigarette ash rate of recovery is greater than 98%, and silver-colored cigarette ash through helical feed to raw material silo, send bottom convertor to carry out again
Reduction melting；Flue gas after waste heat boiler cools down separation of Silver cigarette ash is sent into cottrell, continues cooling down to 375-385
DEG C, most of high antimony flue dust translates into solid-state in flue dust, and formation needle antimony is white, collects recycling, and high antimony fume recovery rate is greater than
95%, high antimony flue dust is sent into antimony rectification systems and is further processed；The flue gas that cottrell comes out, which is passed through flash cold column, to be continued to be cooled to
100-200 DEG C, the high arsenic flue gas of wherein most is converted into solid-state, after through bag collection and collecting recycling, can sell or fill out outside on the spot
It buries, high arsenic off-gas recovery rate is greater than 98%；Residue gather dust tail gas after desulfurizing tower desulfurization and dedusting through smoke stack emission.
2. a kind of method for separating arsenic, antimony from silver-colored smelting ash according to claim 1, it is characterised in that: the step
It is rapid 1) in proportion mix be char particle: 1-10%, iron filings: 0.1-2%, soda ash: 0.1-3%, fluorite: 0.01-0.03%, lead sun
Pole mud: 85-95%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710289303.3A CN107130115B (en) | 2017-04-27 | 2017-04-27 | A method of separating arsenic, antimony from silver-colored smelting ash |
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| CN201710289303.3A CN107130115B (en) | 2017-04-27 | 2017-04-27 | A method of separating arsenic, antimony from silver-colored smelting ash |
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| CN107130115B true CN107130115B (en) | 2018-12-07 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109097587B (en) * | 2018-10-18 | 2020-07-31 | 郴州市金贵银业股份有限公司 | Method for efficiently recovering precious metal in lead anode slime |
| CN109722544A (en) * | 2019-01-21 | 2019-05-07 | 中国恩菲工程技术有限公司 | Fume recovery system and method |
| CN112919538B (en) * | 2021-02-26 | 2023-04-11 | 广西华远金属化工有限公司 | Oxygen-enriched production process of catalyst-grade antimony trioxide |
| CN114427034A (en) * | 2021-12-27 | 2022-05-03 | 湖南金业环保科技有限公司 | Method and equipment for treating industrial solid waste smelting furnace slag |
| CN114774699A (en) * | 2022-04-25 | 2022-07-22 | 金川集团股份有限公司 | Method for recovering gold and silver from smelting slag of alloy converting converter |
| CN115305356A (en) * | 2022-08-30 | 2022-11-08 | 河南豫光金铅股份有限公司 | Method for recovering valuable metals from lead anode slime antimony smelting smoke dust |
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| JPS5920739B2 (en) * | 1979-05-31 | 1984-05-15 | 三菱マテリアル株式会社 | How to remove arsenic from lead containing tin |
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| CN103602834A (en) * | 2013-11-07 | 2014-02-26 | 昆明理工大学 | Selective oxidation-reduction method for recycling arsenic and antimony from arsenic-antimony smoke |
| CN104561604A (en) * | 2014-12-15 | 2015-04-29 | 河南豫光金铅股份有限公司 | Process and device for separating antimony and arsenic by adopting quenching technology |
| CN105296764A (en) * | 2015-12-02 | 2016-02-03 | 郴州市金贵银业股份有限公司 | Method for synchronously pre-removing arsenic and antimony from lead anode mud |
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2017
- 2017-04-27 CN CN201710289303.3A patent/CN107130115B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5920739B2 (en) * | 1979-05-31 | 1984-05-15 | 三菱マテリアル株式会社 | How to remove arsenic from lead containing tin |
| GB2118536A (en) * | 1982-04-05 | 1983-11-02 | Samim Soc Azionaria Minero Met | Metal recovery |
| CN101255500A (en) * | 2008-04-02 | 2008-09-03 | 河南豫光金铅股份有限公司 | Smelting method for separating value metals from anode mud by firing process and device thereof |
| CN103397191A (en) * | 2013-08-05 | 2013-11-20 | 昆明冶金研究院 | Method for comprehensively efficiently processing lead anode slime by using top-blown converter |
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| CN104561604A (en) * | 2014-12-15 | 2015-04-29 | 河南豫光金铅股份有限公司 | Process and device for separating antimony and arsenic by adopting quenching technology |
| CN105296764A (en) * | 2015-12-02 | 2016-02-03 | 郴州市金贵银业股份有限公司 | Method for synchronously pre-removing arsenic and antimony from lead anode mud |
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Inventor after: Tan Lin Inventor after: Yang Yuexin Inventor after: Qin Xiaolong Inventor after: Huang Pengfei Inventor before: Yang Yuexin Inventor before: Tan Lin Inventor before: Qin Xiaolong Inventor before: Huang Pengfei |