CN108611492A - A kind of technique that thick tin is smelted in the press filtration solids from sodium stannate solution - Google Patents
A kind of technique that thick tin is smelted in the press filtration solids from sodium stannate solution Download PDFInfo
- Publication number
- CN108611492A CN108611492A CN201810343220.2A CN201810343220A CN108611492A CN 108611492 A CN108611492 A CN 108611492A CN 201810343220 A CN201810343220 A CN 201810343220A CN 108611492 A CN108611492 A CN 108611492A
- Authority
- CN
- China
- Prior art keywords
- sodium stannate
- press filtration
- thick tin
- smelting
- technique
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- C22B7/001—Dry processes
-
- 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
- C22B25/00—Obtaining tin
- C22B25/02—Obtaining tin by dry processes
-
- 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
- C22B25/00—Obtaining tin
- C22B25/06—Obtaining tin from scrap, especially tin scrap
-
- 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 the techniques that thick tin is smelted in a kind of press filtration solids from sodium stannate solution, include the following steps：(1) sodium stannate solution press filtration solid is dried by drying machine, obtains the aqueous siccative 3 5%；(2) by sodium stannate siccative, quartz sand, coal dust according to mass ratio 100：(1‑2)：10 are matched, continuous uniform is to furnace charge after the intermediate frequency furnace used needed for smelting is warming up to 1000 DEG C by uniform stirring at mixture (3), temperature is risen to 1,200 1400 DEG C after material melting, melt liquid after reacting 1 2h (4) and being completely melt imports natural cooling layering in mold, upper layer dross is removed after complete solidification, lower metal layer is the thick tin that grade is more than 70%.The present invention is easy to operate, environmental-friendly, short, high financial profit when smelting furnace.
Description
Technical field
The present invention relates to non-ferrous metal metallurgy technical fields, and in particular to a kind of smelting from sodium stannate solution press filtration solids
The technique for refining thick tin.
Background technology
Although current various battery new technologies are evolving, possess the lead-acid batteries of 150 years development history still with
By means of its excellent cost performance, the chemical property of stabilization, ripe production technology and its higher recycling of waste product etc.
Advantage occupies first place in secondary cell market.The sustainable growth of annual output had both represented importance of the lead-acid battery to the mankind,
Mean there is a large amount of lead to be consumed on lead-acid accumulator product every year.
Lead-acid accumulator also becomes most important lead regenerated resources as the main consumer products in the whole world.China
The primary raw material of reviver has 80% or more to come from waste and old lead acid accumulator.Lead is as a kind of highly toxic heavy metal, from environmental protection
From the point of view of, it is of great significance to the recycling of lead in waste and old lead acid accumulator.
Contained tin enters by reduction melting in lead bullion together with lead in accumulator, and slag making shape is carried out by pyro-refining
It is removed from lead at sodium stannate, sodium stannate can enter solution by water under certain condition, if do not recycled to it, then make
At the waste of resource.
Invention content
In order to overcome the defect of existing granulation sintering process technically, the present invention proposes a kind of from sodium stannate solution press filtration
The technique that thick tin is smelted in solids, the technical process is simple, at low cost, energy consumption is low.
The technical problems to be solved by the invention are realized using following technical scheme：
The technique that thick tin is smelted in a kind of press filtration solids from sodium stannate solution, includes the following steps：
(1) sodium stannate solution press filtration solid is dried by drying machine, is obtained containing water content in the dry of 3%-5%
Material；
(2) by sodium stannate siccative, quartz sand, coal dust according to mass ratio 100：(1-2)：10 are matched, uniform stirring at
Mixture；
(3) by the intermediate frequency furnace used needed for smelting be warming up to continuous uniform after 1000 DEG C into stove plus mixture, it is to be added
Temperature is risen to 1200-1400 DEG C after the mixture fusing entered, reacts 1-2h；
(4) melt liquid after being completely melt imports natural cooling layering in mold, and upper layer is removed after complete solidification
Dross, lower metal layer are the thick tin that grade is more than 70%.
The beneficial effects of the invention are as follows：Compared with the prior art, by the way that auxiliary agent quartz sand, coal dust is added, impurity can be made
It is cooling to float, it is convenient for the separation of tin, greatly reduces the inventory of production cost and material, the closed circuit of lead-acid accumulator is pushed to follow
Ring, economic benefit is apparent, and environment and social benefit are huge.
Specific implementation mode
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention be easy to understand, tie below
Specific embodiment is closed, the present invention is further explained.
Embodiment 1
The technique that thick tin is smelted in a kind of press filtration solids from sodium stannate solution, includes the following steps：
(1) sodium stannate solution press filtration solid is dried by drying machine, is obtained containing water content in the dry of 3%-5%
Material；
(2) by sodium stannate siccative, quartz sand, coal dust according to mass ratio 100：1：10 are matched, and uniform stirring is at mixing
Material；
(3) by the intermediate frequency furnace used needed for smelting be warming up to continuous uniform after 1000 DEG C into stove plus mixture, it is to be added
Temperature is risen to 1200-1400 DEG C after the mixture fusing entered, reacts 1-2h；
(4) melt liquid after being completely melt imports natural cooling layering in mold, and upper layer is removed after complete solidification
Dross, lower metal layer are the thick tin that grade is more than 70%.
Embodiment 2
The technique that thick tin is smelted in a kind of press filtration solids from sodium stannate solution, includes the following steps：
(1) sodium stannate solution press filtration solid is dried by drying machine, is obtained containing water content in the dry of 3%-5%
Material；
(2) by sodium stannate siccative, quartz sand, coal dust according to mass ratio 100：2：10 are matched, and uniform stirring is at mixing
Material；
(3) by the intermediate frequency furnace used needed for smelting be warming up to continuous uniform after 1000 DEG C into stove plus mixture, it is to be added
Temperature is risen to 1200-1400 DEG C after the mixture fusing entered, reacts 1-2h；
(4) melt liquid after being completely melt imports natural cooling layering in mold, and upper layer is removed after complete solidification
Dross, lower metal layer are the thick tin that grade is more than 70%.
Embodiment 3
The technique that thick tin is smelted in a kind of press filtration solids from sodium stannate solution, includes the following steps：
(1) sodium stannate solution press filtration solid is dried by drying machine, is obtained containing water content in the dry of 3%-5%
Material；
(2) by sodium stannate siccative, quartz sand, coal dust according to mass ratio 100：1.5：10 are matched, and uniform stirring is at mixed
Close material；
(3) by the intermediate frequency furnace used needed for smelting be warming up to continuous uniform after 1000 DEG C into stove plus mixture, it is to be added
Temperature is risen to 1200-1400 DEG C after the mixture fusing entered, reacts 1-2h；
(4) melt liquid after being completely melt imports natural cooling layering in mold, and upper layer is removed after complete solidification
Dross, lower metal layer are the thick tin that grade is more than 70%.
For drying machine wherein in step (1) using heated-air drying, hot wind is to collect to come from lead skim reclaiming smelting process
In, specific collection method is as follows：
S1. red-hot lead skim mine is encased in by feeding system in a vertical closed tank body, the temperature of lead skim mine is
950 DEG C~1200 DEG C；
S2. it is uniformly given on entire tank body cross section from the apparatus of oxygen supply of the tank base and is passed through cryogenic oxygen, oxygen stream
The ratio of amount and lead skim mine treating capacity, i.e.,：Gas-solid ratio is 2000：2500Nm3/ t makes red-hot lead skim mine in the tank body and oxygen
Gas, which comes into full contact with, to be cooled down；
S3. lead skim mine after cooling is discharged by tank base, and the carrying lead skim mine after being come into full contact with lead skim mine is whole
The air of sensible heat is then discharged from tank body top, is directly entered in drying machine.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (5)
1. smelting the technique of thick tin in a kind of press filtration solids from sodium stannate solution, it is characterised in that include the following steps：
(1) sodium stannate solution press filtration solid is dried by drying machine, obtains the siccative in 3%-5% containing water content；
(2) by sodium stannate siccative, quartz sand, coal dust according to mass ratio 100：(1-2)：10 are matched, and uniform stirring is at mixing
Material；
(3) by the intermediate frequency furnace used needed for smelting be warming up to continuous uniform after 1000 DEG C into stove plus mixture, it is to be added
Temperature is risen to 1200-1400 DEG C after mixture fusing, reacts 1-2h；
(4) melt liquid after being completely melt imports natural cooling layering in mold, and upper layer dross is removed after complete solidification,
Lower metal layer is the thick tin that grade is more than 70%.
2. smelting the technique of thick tin in a kind of press filtration solids from sodium stannate solution according to claim 1, feature exists
In：Sodium stannate siccative, quartz sand, coal dust are according to mass ratio 100 in step (2)：1：10 are matched.
3. smelting the technique of thick tin in a kind of press filtration solids from sodium stannate solution according to claim 1, feature exists
In：Sodium stannate siccative, quartz sand, coal dust are according to mass ratio 100 in step (2)：2：10 are matched.
4. smelting the technique of thick tin in a kind of press filtration solids from sodium stannate solution according to claim 1, feature exists
In：Sodium stannate siccative, quartz sand, coal dust are according to mass ratio 100 in step (2)：1.5：10 are matched.
5. smelting the technique of thick tin in a kind of press filtration solids from sodium stannate solution according to claim 1, feature exists
In：Reaction time in step (4) is 1.5 hours.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810343220.2A CN108611492A (en) | 2018-04-17 | 2018-04-17 | A kind of technique that thick tin is smelted in the press filtration solids from sodium stannate solution |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810343220.2A CN108611492A (en) | 2018-04-17 | 2018-04-17 | A kind of technique that thick tin is smelted in the press filtration solids from sodium stannate solution |
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| Publication Number | Publication Date |
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| CN108611492A true CN108611492A (en) | 2018-10-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113737016A (en) * | 2021-09-18 | 2021-12-03 | 安徽华铂再生资源科技有限公司 | Process for smelting crude tin from sodium stannate solution filter-pressed solid |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103725900A (en) * | 2013-12-27 | 2014-04-16 | 灌阳县贵达有色金属有限公司 | Method for removing arsenic and sulfur from tin concentrate |
| CN104073654A (en) * | 2014-06-25 | 2014-10-01 | 中国恩菲工程技术有限公司 | Side-blowing tin smelting technique |
| CN104593621A (en) * | 2014-12-31 | 2015-05-06 | 柳州华锡铟锡材料有限公司 | Method for producing crude tin from sodium stannate extraction residues |
-
2018
- 2018-04-17 CN CN201810343220.2A patent/CN108611492A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103725900A (en) * | 2013-12-27 | 2014-04-16 | 灌阳县贵达有色金属有限公司 | Method for removing arsenic and sulfur from tin concentrate |
| CN104073654A (en) * | 2014-06-25 | 2014-10-01 | 中国恩菲工程技术有限公司 | Side-blowing tin smelting technique |
| CN104593621A (en) * | 2014-12-31 | 2015-05-06 | 柳州华锡铟锡材料有限公司 | Method for producing crude tin from sodium stannate extraction residues |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113737016A (en) * | 2021-09-18 | 2021-12-03 | 安徽华铂再生资源科技有限公司 | Process for smelting crude tin from sodium stannate solution filter-pressed solid |
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Application publication date: 20181002 |