CN102011012A - Method for preparing lead ingots, zinc powder and mixed iron slag from waste residues in lithopone production - Google Patents
Method for preparing lead ingots, zinc powder and mixed iron slag from waste residues in lithopone production Download PDFInfo
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- CN102011012A CN102011012A CN2010105188748A CN201010518874A CN102011012A CN 102011012 A CN102011012 A CN 102011012A CN 2010105188748 A CN2010105188748 A CN 2010105188748A CN 201010518874 A CN201010518874 A CN 201010518874A CN 102011012 A CN102011012 A CN 102011012A
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- zinc
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- arc furnace
- electric arc
- zinc powder
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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
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- 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 provides a method for preparing lead ingots, zinc powder and mixed iron slag from waste residues in lithopone production. The method comprises the following steps of: uniformly mixing the waste residues and filings in lithopone production, hard coal and sodium carbonate, and delivering to a hermetic air-isolated arc furnace; raising the temperature to between 1,200 and 1,300 DEG C for reaction; casting lead to form a lead ingot crude product after the lead flows out from the furnace in a molten state, and remelting and refining to prepare quality metal lead; adding coke into the arc furnace when the temperature of the arc furnace is reduced to about 100 DEG C, raising the temperature to between 1,300 and 1,400 DEG C, reducing zinc oxide into zinc steam, condensing the zinc steam by using a serially connected condenser, collecting, and screening by using an 80-mesh screen to obtain qualified zinc powder which has no screen tailings; and mixing the rest of furnace slags in the arc furnace, which is a large quantity of iron slags, and a small amount of rare metal salt, further processing through smelting to obtain iron ingots.
Description
Technical field
The present invention relates to produce the comprehensive regulation of zinc sulfide white gained waste residue and utilize technical field, particularly a kind of with producing the method that zinc sulfide white gained waste residue is produced lead pig, zinc powder and mixed scum.
Background technology
Zinc sulfide white is commonly called as lithopone, is the mixture of zinc sulphide and barium sulfate, adopts roasting leaching method to produce usually.Be about to barium sulfate-containing greater than 95% natural barite and hard coal with 3: 1 (quality) mixed material feedings, below being crushed to the about 2cm of diameter, enter reduction furnace, control furnace temperature leading portion is 1000～1200 ℃, back segment is 500～600 ℃, reduction furnace rotates with the speed of revolution 80s, reaction conversion ratio is 80%～90%, the barium sulphide that makes enters leacher, controlled temperature is more than 65 ℃, and obtaining barium sulphide content is 701%, enters settling tank again, the clarification back adds the zinc sulfate reaction, control zinc sulfate content greater than 28%, pH=8～9, obtaining density is the barium sulfate of 1.296～1.357g/cm3 and the mixture of zinc sulphide.Reaction solution obtains filter cake shape zinc sulfide white through filter press, and water content is not more than 45%, enters the roasting of drying and roasting stove to change the zinc sulfide white crystal formation, uses sulfuric acid washing then under 80 ℃ of temperature.After washing, add laking agent, press filtration, drying and abrasive dust and form.Reaction equation wherein is as follows:
2C+O
2→2CO
2
BaSO
4+C→BaS+4CO
BaSO
4+4CO→BaS+4CO
2
BaS+ZnSO
4→ZnS·BaSO
4
Produced the various heavy waste residue in the process of above-mentioned zinc sulfide white production, as solid waste such as lead skim, cadmia, cadmium slag, barium slag, cinders.Wherein, plumbous and zinc content is the highest, lead element content is 25-38%, and zinc element content is 8-10%, and elements such as other sulphur, barium, calcium, cadmium, copper add together content for being no more than 10%.At present, resource is so not only wasted in the most air storage of this waste residue or be used to fill a vacancy, pave the way, and heavy metal is serious environment pollution also.
For this reason, be necessary to explore the comprehensive regulation and utilize production zinc sulfide white gained waste residue commercial run, produce of the pollution of zinc sulfide white gained waste residue environment to alleviate.
Summary of the invention
The objective of the invention is to, provide a kind of with producing the method that zinc sulfide white gained waste residue is produced lead pig, zinc powder and mixed scum.This method turns waste into wealth, effectively will produce zinc sulfide white gained waste residue is converted into lead pig, the zinc powder that has than the large economy meaning and mixes scum, fully excavate and utilized the potential economic worth, also provide new approach for the comprehensive utilization and the improvement of producing zinc sulfide white gained waste residue.
Technical scheme of the present invention is as follows: a kind of with producing the method that zinc sulfide white gained waste residue is produced lead pig, zinc powder and mixed scum, comprise following concrete steps:
Steps A: lead sulfate and the zinc ferrite mass content in the zinc sulfide white gained waste residue produced in conversion, and weighing iron is cut and anthracite, and according to lead sulfate, the pure substance mass ratio of iron and carbon is 1: 0.08-0.38: 0.02-0.06 weighing iron is cut and anthracite, simultaneously, according to zinc ferrite and yellow soda ash with pure mass ratio 1: 0.39-0.79 weighing yellow soda ash, after each material mixed, send into electric arc furnace (1) lining of airtight secluding air from electric arc furnace (1) top, being heated to 1200-1300 ℃ reacts, lead in the waste residue is separated with zinc oxide, lead flows out in stove with happy and harmonious state, is cast into lead pig crude product product, through melting the refining elaboration metallic lead that obtains again;
Step B: treat that electric arc furnace (1) temperature is reduced to about 100 ℃, pure substance mass ratio according to zinc oxide and carbon is 1: 0.05-0.35 continues to drop into coke in electric arc furnace (1), electric arc furnace (1) temperature is risen to 1300-1400 ℃, this moment, zinc oxide was reduced into zinc fume by carbon monoxide, zinc fume is condensed into the collector that zinc powder falls into zinc powder through three series connection condensers (2), and can get 80 screen residues through screening is zero qualified zinc powder;
Step C: remaining slag is the mixture of a large amount of scums and a small amount of rare metal salts in the electric arc furnace, carries out deep processing through smelting, makes ingot iron and valuable rare metal.
Of the present inventionly produce lead pig, zinc powder and mix its chemical equation of method of scum as follows with producing zinc sulfide white gained waste residue:
PbSO
4+Fe＝＝＝＝＝Pb+FeSO
4
PbSO
4+C＝＝＝＝＝Pb+CO
2+SO
2
ZnFe
2O
4+Na
2CO
3＝＝＝＝＝ZnO+CO
2+Na
2FeO
4
CO
2+C＝＝＝＝＝2CO
ZnO+CO＝＝＝＝＝Zn+CO
2
The invention has the beneficial effects as follows: of the present invention with producing the method that zinc sulfide white gained waste residue is produced lead pig, zinc powder and mixed scum, effectively produce zinc sulfide white gained waste residue and will be converted into simple substance lead, simple substance zinc and the iron that has than the large economy meaning, fully excavate and utilized the potential economic worth, also for fully utilizing and administer the new approach that provides.Simultaneously, this method is simple to operate, and the facility investment expense is low, and by product is few, is suitable for applying.
Description of drawings
Fig. 1, produce the process flow sheet of the method for lead pig, zinc powder and mixing scum, (1) electric arc furnace among this figure, (2) three series connection condensers with producing zinc sulfide white gained waste residue for of the present invention.
Embodiment
A kind ofly produce lead pig with producing zinc sulfide white gained waste residue, zinc powder and the method for mixing scum, comprise following concrete steps: weighing 600kg produces zinc sulfide white gained waste residue, the mass content that the lead sulfate in the zinc sulfide white gained waste residue is produced in conversion is 303kg and zinc ferrite mass content 241kg, according to lead sulfate, the pure substance mass ratio of iron and carbon is that 1: 0.28: 0.04 weighing iron is cut and anthracite, simultaneously, according to zinc ferrite and yellow soda ash with 1: 0.59 weighing yellow soda ash of pure mass ratio, after each material mixed, send into from the electric arc furnace top in the electric arc furnace of airtight secluding air, being heated to 1200 ℃ reacts, lead in the waste residue is separated with zinc oxide, lead flows out in stove with happy and harmonious state, be cast into lead pig crude product product, obtain the elaboration metallic lead through melting to make with extra care again, wherein Qian pure substance quality is 207kg; Treat that electric arc furnace temperature is reduced to about 100 ℃, pure substance mass ratio according to zinc oxide and carbon is that 1: 0.15 input continues to drop into coke in electric arc furnace, electric arc furnace temperature is risen to 1300 ℃, this moment, zinc oxide was reduced into zinc fume by carbon monoxide, zinc fume becomes zinc powder to fall into the collector of zinc powder through three series connection condenser condenses, can get 80 screen residues through screening is zero qualified zinc powder, and wherein the pure substance mass content of zinc is 65kg; Remaining slag is the mixture of a large amount of scums and a small amount of rare metal salts in the electric arc furnace, carries out deep processing through smelting, makes ingot iron and valuable rare metal.
A kind ofly produce lead pig with producing zinc sulfide white gained waste residue, zinc powder and the method for mixing scum, comprise following concrete steps: weighing 600kg produces zinc sulfide white gained waste residue, the mass content that the lead sulfate in the zinc sulfide white gained waste residue is produced in conversion is 303kg and zinc ferrite mass content 241kg, and according to lead sulfate, the pure substance mass ratio of iron and carbon is that 1: 0.38: 0.06 weighing iron is cut and anthracite, simultaneously, according to zinc ferrite and yellow soda ash with 1: 0.79 weighing yellow soda ash of pure mass ratio, after each material mixed, send into from the electric arc furnace top in the electric arc furnace of airtight secluding air, being heated to 1300 ℃ reacts, lead in the waste residue is separated with zinc oxide, lead flows out in stove with happy and harmonious state, be cast into lead pig crude product product, obtain the elaboration metallic lead through melting to make with extra care again, wherein Qian pure substance quality is 207kg; Treat that electric arc furnace temperature is reduced to about 100 ℃, pure substance mass ratio according to zinc oxide and carbon is that 1: 0.35 input continues to drop into coke in electric arc furnace, electric arc furnace temperature is risen to 1400 ℃, this moment, zinc oxide was reduced into zinc fume by carbon monoxide, zinc fume becomes zinc powder to fall into the collector of zinc powder through three series connection condenser condenses, can get 80 screen residues through screening is zero qualified zinc powder, and wherein the pure substance mass content of zinc is 65kg; Remaining slag is the mixture of a large amount of scums and a small amount of rare metal salts in the electric arc furnace, carries out deep processing through smelting, makes ingot iron and valuable rare metal.
Embodiment 3
A kind ofly produce lead pig with producing zinc sulfide white gained waste residue, zinc powder and the method for mixing scum, comprise following concrete steps: lead sulfate meter and the zinc ferrite mass content in the zinc sulfide white gained waste residue produced in conversion, and weighing iron is cut and anthracite, and according to lead sulfate, the pure substance mass ratio of iron and carbon is that 1: 0.08: 0.02 weighing iron is cut and anthracite, simultaneously, according to zinc ferrite and yellow soda ash with 1: 0.39 weighing yellow soda ash of pure mass ratio, after each material mixed, send into from the electric arc furnace top in the electric arc furnace of airtight secluding air, being heated to 1250 ℃ reacts, lead in the waste residue is separated with zinc oxide, lead flows out in stove with happy and harmonious state, be cast into lead pig crude product product, obtain the elaboration metallic lead through melting to make with extra care again, wherein Qian pure substance quality is 193.2kg; Treat that electric arc furnace temperature is reduced to about 100 ℃, pure substance mass ratio according to zinc oxide and carbon is that 1: 0.05 input continues to drop into coke in electric arc furnace, electric arc furnace temperature is risen to 1350 ℃, this moment, zinc oxide was reduced into zinc fume by carbon monoxide, zinc fume becomes zinc powder to fall into the collector of zinc powder through three series connection condenser condenses, can get 80 screen residues through screening is zero qualified zinc powder, and wherein the pure substance mass content of zinc is 8.78kg; Remaining slag is the mixture of a large amount of scums and a small amount of rare metal salts in the electric arc furnace, carries out deep processing through smelting, makes ingot iron and valuable rare metal.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, its framework form can be flexible and changeable, can the subseries method.Just make some simple deduction or replace, all should be considered as belonging to the scope of patent protection that the present invention is determined by claims of being submitted to.
Claims (1)
1. a method of producing lead pig, zinc powder and mixing scum with production zinc sulfide white gained waste residue is characterized in that, comprises following concrete steps:
Steps A: lead sulfate and the zinc ferrite mass content in the zinc sulfide white gained waste residue produced in conversion, and weighing iron is cut and anthracite, and according to lead sulfate, the pure substance mass ratio of iron and carbon is 1: 0.08-0.38: 0.02-0.06 weighing iron is cut and anthracite, simultaneously, according to zinc ferrite and yellow soda ash with pure mass ratio 1: 0.39-0.79 weighing yellow soda ash, after each material mixed, send into electric arc furnace (1) lining of airtight secluding air from electric arc furnace (1) top, being heated to 1200-1300 ℃ reacts, lead in the waste residue is separated with zinc oxide, lead flows out in stove with happy and harmonious state, is cast into lead pig crude product product, through melting the refining elaboration metallic lead that obtains again;
Step B: treat that electric arc furnace (1) temperature is reduced to about 100 ℃, pure substance mass ratio according to zinc oxide and carbon is 1: 0.05-0.35 continues to drop into coke in electric arc furnace (1), electric arc furnace (1) temperature is risen to 1300-1400 ℃, this moment, zinc oxide was reduced into zinc fume by carbon monoxide, zinc fume is condensed into the collector that zinc powder falls into zinc powder through three series connection condensers (2), and can get 80 screen residues through screening is zero qualified zinc powder;
Step C: remaining slag is the mixture of a large amount of scums and a small amount of rare metal salts in the electric arc furnace, carries out deep processing through smelting, makes ingot iron and valuable rare metal.
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|---|---|---|---|
| CN2010105188748A CN102011012A (en) | 2010-10-25 | 2010-10-25 | Method for preparing lead ingots, zinc powder and mixed iron slag from waste residues in lithopone production |
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|---|---|---|---|
| CN2010105188748A CN102011012A (en) | 2010-10-25 | 2010-10-25 | Method for preparing lead ingots, zinc powder and mixed iron slag from waste residues in lithopone production |
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| CN102011012A true CN102011012A (en) | 2011-04-13 |
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| CN2010105188748A Pending CN102011012A (en) | 2010-10-25 | 2010-10-25 | Method for preparing lead ingots, zinc powder and mixed iron slag from waste residues in lithopone production |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776376A (en) * | 2012-08-08 | 2012-11-14 | 汉源县广超有色金属综合回收有限责任公司 | Method for recovering valuable metal from waste residue containing lead and zinc through wet-fire combination process |
| CN106077690A (en) * | 2016-08-16 | 2016-11-09 | 白银有色集团股份有限公司 | A kind of Water Quenching Slag that reduces contains the alloy zinc powder production technology of zinc |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1058926A (en) * | 1990-08-13 | 1992-02-26 | 云南会泽铅锌矿 | The oxygen enrichment zinc ore crude is produced the method and apparatus of alloy zinc powder |
-
2010
- 2010-10-25 CN CN2010105188748A patent/CN102011012A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1058926A (en) * | 1990-08-13 | 1992-02-26 | 云南会泽铅锌矿 | The oxygen enrichment zinc ore crude is produced the method and apparatus of alloy zinc powder |
Non-Patent Citations (2)
| Title |
|---|
| 《化工环保》 19930630 戴友芝等 立德粉生产废渣的回收利用 第154-157页 1 第13卷, 第3期 * |
| 《湖南化工》 19730331 湘潭市化工厂 用立德粉废渣生产多种产品 第60-63页 1 , 第1期 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102776376A (en) * | 2012-08-08 | 2012-11-14 | 汉源县广超有色金属综合回收有限责任公司 | Method for recovering valuable metal from waste residue containing lead and zinc through wet-fire combination process |
| CN102776376B (en) * | 2012-08-08 | 2013-10-30 | 汉源县广超有色金属综合回收有限责任公司 | Method for recovering valuable metal from waste residue containing lead and zinc through wet-fire combination process |
| CN106077690A (en) * | 2016-08-16 | 2016-11-09 | 白银有色集团股份有限公司 | A kind of Water Quenching Slag that reduces contains the alloy zinc powder production technology of zinc |
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Application publication date: 20110413 |