CN106636659A - Method for smelting tin from tin smelting powder residue - Google Patents
Method for smelting tin from tin smelting powder residue Download PDFInfo
- Publication number
- CN106636659A CN106636659A CN201610906538.8A CN201610906538A CN106636659A CN 106636659 A CN106636659 A CN 106636659A CN 201610906538 A CN201610906538 A CN 201610906538A CN 106636659 A CN106636659 A CN 106636659A
- Authority
- CN
- China
- Prior art keywords
- tin
- granulated slag
- smelting
- alcohol
- cracking
- 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.)
- Pending
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Classifications
-
- 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
- C22B7/04—Working-up slag
-
- 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
-
- 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
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/12—Dry methods smelting of sulfides or formation of mattes by gases
-
- 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
-
- 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 a method for smelting tin from tin smelting powder residue. The method comprises: pyrolysis gas obtained by alcohol pyrolysis and the tin smelting powder residue are subjected to reduction reaction under 400-800 DEG C to obtain a refined tin solution. According to the method, the alcohol pyrolysis gas is adopted as a reducer, no any impurity is introduced, the reduced tin has high grade, a flow is short and turnover is fast, a recycle rate is high, and raw material production and energy consumption costs are low.
Description
Technical field
The present invention relates to the smelting process of tin.It is more particularly related to a kind of smelt tin metallurgy in granulated slag from tin
Method.
Background technology
It is to carry out in gold-plating groove newborn tin crystals ingress of air when tin, lead are separated in tin refining process and quilt that tin smelts granulated slag
Aoxidize and formed.Its Main Ingredients and Appearance is stannous oxide, a small amount of tin sweat(ing), micro tin ash.Its Theil indices 85～92% it
Between, outward appearance gray powdery.The generation rate of granulated slag is 3% or so, that is often produce 100 tons of tin, about produces 3 tons of granulated slags.Pass
The granulated slag treating method of system is that itself and other tin materials are carried out into dispensing, then returns and reduced into row high melt when electric furnace or reverberatory furnace
Into thick tin.There are several shortcomings in the method：One is that the material cycling time is long；Two is that tin recovery rate is not high；Three are reduction of into stove
Tin grade；Four be to increase production this into；Five is, because the stanniferous amount high conduction performance of granulated slag is good, short circuit easily to be formed in electric furnace
And burn out electrode.
The content of the invention
It is an object of the invention to solve at least the above, and provide the advantage that at least will be described later.
It is a still further object of the present invention to provide a kind of handling process of the reverse-flow continuous reduction granulated slag of middle low temperature.
In order to realize these purposes of the invention and further advantage, there is provided a kind of to smelt tin metallurgy in granulated slag from tin
Method, including：The cracking gas that alcohol cracking is obtained carries out reduction reaction at 400-800 DEG C and obtains with tin smelting granulated slag
Refined tin liquid.
Preferably, the cracking gas is by alcohol and catalyst Co3O4·Fe3O4Carry out cracking at 400-700 DEG C to obtain.
Preferably, the volume fraction of the alcohol is 75-95%.
Preferably, the cracking gas obtains clean cracking gas and dust through water dust scrubber dedusting, described clean
Cracking gas smelts granulated slag with the tin carries out reduction reaction, and the dust mixes with the alcohol again.
Preferably, the addition of the alcohol is 0.3L/h, and it is 2kg/h that the tin smelts the addition of granulated slag.
Preferably, the granulated slag in the tail gas by cyclone dust collectors to reduction reaction is reclaimed.
The present invention at least includes following beneficial effect
1st, using alcohol cracking gas as reducing agent, any impurity will not be brought into, the tin grade for restoring is high；
2nd, the short turnover of flow process of the present invention is fast, and the rate of recovery is high；
3rd, by the way that the dust that cracking is produced is recycled, raw materials for production and energy consumption cost are low, often process for the present invention
1kg tin smelts granulated slag need to only consume 0.15L alcohol, and hinge structure often processes 1kg tin smelts granulated slag need to only consume 0.3-
0.5L alcohol has great progress.
The further advantage of the present invention, target and feature embody part by description below, and part will also be by this
The research of invention and practice and be understood by the person skilled in the art.
Description of the drawings
Fig. 1 is the schematic flow sheet of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is described in further detail, to make those skilled in the art with reference to specification text
Word can be implemented according to this.
It should be noted that experimental technique described in following embodiments, if no special instructions, is conventional method, institute
Reagent and material are stated, if no special instructions, is commercially obtained.
As shown in figure 1, the present invention provides a kind of method for smelting tin metallurgy in granulated slag from tin, including：Alcohol cracking is obtained
Cracking gas and the tin smelt granulated slag reduction reaction carried out at 400-800 DEG C and obtain refined tin liquid.
Preferably, the cracking gas is by alcohol and catalyst Co3O4·Fe3O4Carry out cracking at 400-700 DEG C to obtain.
Preferably, the volume fraction of the alcohol is 75-95%.
Preferably, the cracking gas obtains clean cracking gas and dust through water dust scrubber dedusting, described clean
Cracking gas smelts granulated slag with the tin carries out reduction reaction, and the dust mixes with the alcohol again.
Preferably, the addition of the alcohol is 0.3L/h, and it is 2kg/h that the tin smelts the addition of granulated slag.
Preferably, the granulated slag in the tail gas by cyclone dust collectors to reduction reaction is reclaimed.
Embodiment 1
A kind of method for smelting tin metallurgy in granulated slag from tin
Step one, in the pyrolysis furnace of 5L add 1kgCo3O4·Fe3O4, and it is 400 DEG C to control temperature in pyrolysis furnace, is led to
It is 75% alcohol that excessively stream gauge presses 0.3L/h and adds mass fraction, carries out alcohol cracking；
Step 2, the water dust scrubber by alcohol cracking gas through 5L carry out udst separation, obtain clean cracking gas and
Dust, dust is rejoined into pyrolysis furnace；
Step 3, in reduction furnace plus tin smelt granulated slag 100kg do bed material, control reduction furnace temperature be 400 DEG C, then
Add tin to smelt granulated slag from reduction furnace top continuous uniform by the addition speed of 2kg/h, be continuously passed through from lower furnace clean
Cracking gas, the refined tin liquid for obtaining is discharged from furnace bottom interruption, and tail gas is continuously discharged by stove top；Common property goes out refined tin within 9 hours
15kg, comprehensive recovery 99.2%, refined tin taste 99.92%.
Step 4, the granulated slag that the tail gas from reduction furnace out is taken out of is reclaimed by cyclone dust collectors, the powder of recovery
Slag is drained in reduction furnace.
Embodiment 2
A kind of method for smelting tin metallurgy in granulated slag from tin
Step one, in the pyrolysis furnace of 5L add 1kgCo3O4·Fe3O4, and it is 700 DEG C to control temperature in pyrolysis furnace, is led to
It is 95% alcohol that excessively stream gauge presses 0.3L/h and adds mass fraction, carries out alcohol cracking；
Step 2, the water dust scrubber by alcohol cracking gas through 5L carry out udst separation, obtain clean cracking gas and
Dust, dust is rejoined into pyrolysis furnace；
Step 3, in reduction furnace plus tin smelt granulated slag 100kg do bed material, control reduction furnace temperature be 800 DEG C, then
Add tin to smelt granulated slag from reduction furnace top continuous uniform by the addition speed of 2kg/h, be continuously passed through from lower furnace clean
Cracking gas, the refined tin liquid for obtaining is discharged from furnace bottom interruption, and tail gas is continuously discharged by stove top；Common property goes out refined tin within 9 hours
16.3kg, comprehensive recovery 99.5%, refined tin taste 99.95%.
Step 4, the granulated slag that the tail gas from reduction furnace out is taken out of is reclaimed by cyclone dust collectors, the powder of recovery
Slag is drained in reduction furnace.
Embodiment 3
A kind of method for smelting tin metallurgy in granulated slag from tin
Step one, in the pyrolysis furnace of 5L add 1kgCo3O4·Fe3O4, and it is 500 DEG C to control temperature in pyrolysis furnace, is led to
It is 85% alcohol that excessively stream gauge presses 0.3L/h and adds mass fraction, carries out alcohol cracking；
Step 2, the water dust scrubber by alcohol cracking gas through 5L carry out udst separation, obtain clean cracking gas and
Dust, dust is rejoined into pyrolysis furnace；
Step 3, in reduction furnace plus tin smelt granulated slag 100kg do bed material, control reduction furnace temperature be 600 DEG C, then
Add tin to smelt granulated slag from reduction furnace top continuous uniform by the addition speed of 2kg/h, be continuously passed through from lower furnace clean
Cracking gas, the refined tin liquid for obtaining is discharged from furnace bottom interruption, and tail gas is continuously discharged by stove top；Common property goes out refined tin within 9 hours
15.6kg, comprehensive recovery 99.3%, refined tin taste 99.93%.
Step 4, the granulated slag that the tail gas from reduction furnace out is taken out of is reclaimed by cyclone dust collectors, the powder of recovery
Slag is drained in reduction furnace.
The present invention at least includes following beneficial effect
1st, using alcohol cracking gas as reducing agent, any impurity will not be brought into, the tin grade for restoring is high；
2nd, the short turnover of flow process of the present invention is fast, and the rate of recovery is high；
3rd, by the way that the dust that cracking is produced is recycled, raw materials for production and energy consumption cost are low, often process for the present invention
1kg tin smelts granulated slag need to only consume 0.15L alcohol, and hinge structure often processes 1kg tin smelts granulated slag need to only consume 0.3-
0.5L alcohol has great progress.
Although embodiment of the present invention is disclosed as above, it is not restricted to listed in specification and embodiment
With, it can be applied to completely various suitable the field of the invention, for those skilled in the art, can be easily
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited
In specific details and shown here as the legend with description.
Claims (6)
1. it is a kind of from tin smelt granulated slag in tin metallurgy method, it is characterised in that include：The cracking gas that alcohol cracking is obtained and institute
Stating tin and smelting granulated slag carries out reduction reaction at 400-800 DEG C and obtains refined tin liquid.
2. the as claimed in claim 1 method for smelting tin metallurgy in granulated slag from tin, it is characterised in that the cracking gas by alcohol and
Catalyst Co3O4·Fe3O4Carry out cracking at 400-700 DEG C to obtain.
3. the method for smelting tin metallurgy in granulated slag from tin as claimed in claim 2, it is characterised in that the volume fraction of the alcohol
For 75-95%.
4. the method for smelting tin metallurgy in granulated slag from tin as claimed in claim 3, it is characterised in that the cracking gas is through moisture film
Deduster dedusting obtains clean cracking gas and dust, and the clean cracking gas smelts granulated slag with the tin to carry out reducing instead
Should, the dust mixes with the alcohol again.
5. the as claimed in claim 3 method for smelting tin metallurgy in granulated slag from tin, it is characterised in that the addition of the alcohol is
0.3L/h, it is 2kg/h that the tin smelts the addition of granulated slag.
6. the method for smelting tin metallurgy in granulated slag from tin as claimed in claim 3, it is characterised in that by cyclone dust collectors to institute
The granulated slag stated in the tail gas of reduction reaction is reclaimed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610906538.8A CN106636659A (en) | 2016-10-17 | 2016-10-17 | Method for smelting tin from tin smelting powder residue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610906538.8A CN106636659A (en) | 2016-10-17 | 2016-10-17 | Method for smelting tin from tin smelting powder residue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106636659A true CN106636659A (en) | 2017-05-10 |
Family
ID=58856788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610906538.8A Pending CN106636659A (en) | 2016-10-17 | 2016-10-17 | Method for smelting tin from tin smelting powder residue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106636659A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108913911A (en) * | 2018-06-20 | 2018-11-30 | 扬州市华翔有色金属有限公司 | A kind of refining alkaline residue mentions tin new process |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0149776B2 (en) * | 1985-06-12 | 1989-10-26 | Kawasaki Steel Co | |
| CN102212675A (en) * | 2011-04-12 | 2011-10-12 | 昆明理工大学 | Method for reclaiming tin and iron from oxidized vein tin tailings |
| CN103667701A (en) * | 2013-10-15 | 2014-03-26 | 北京神雾环境能源科技集团股份有限公司 | Metal smelting method |
| CN104131177A (en) * | 2014-07-31 | 2014-11-05 | 河北钢铁股份有限公司 | Method for recovering refined stannum for tinning from electroplate tin mud |
| CN104152715A (en) * | 2014-05-13 | 2014-11-19 | 中国恩菲工程技术有限公司 | Bottom blowing tin smelting process |
| CN104818384A (en) * | 2015-05-06 | 2015-08-05 | 昆明鼎邦科技有限公司 | Method of vacuum-reducing for separating zinc from tin from Zn/Sn alloy powder |
-
2016
- 2016-10-17 CN CN201610906538.8A patent/CN106636659A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0149776B2 (en) * | 1985-06-12 | 1989-10-26 | Kawasaki Steel Co | |
| CN102212675A (en) * | 2011-04-12 | 2011-10-12 | 昆明理工大学 | Method for reclaiming tin and iron from oxidized vein tin tailings |
| CN103667701A (en) * | 2013-10-15 | 2014-03-26 | 北京神雾环境能源科技集团股份有限公司 | Metal smelting method |
| CN104152715A (en) * | 2014-05-13 | 2014-11-19 | 中国恩菲工程技术有限公司 | Bottom blowing tin smelting process |
| CN104131177A (en) * | 2014-07-31 | 2014-11-05 | 河北钢铁股份有限公司 | Method for recovering refined stannum for tinning from electroplate tin mud |
| CN104818384A (en) * | 2015-05-06 | 2015-08-05 | 昆明鼎邦科技有限公司 | Method of vacuum-reducing for separating zinc from tin from Zn/Sn alloy powder |
Non-Patent Citations (2)
| Title |
|---|
| 张耀宸 主编: "《机械加工工艺设计实用手册》", 31 December 1993 * |
| 礼华 译: ""连续炼锡——以气体还原为基础的新炼锡法"", 《有色金属（冶炼部分）》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108913911A (en) * | 2018-06-20 | 2018-11-30 | 扬州市华翔有色金属有限公司 | A kind of refining alkaline residue mentions tin new process |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170510 |
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| RJ01 | Rejection of invention patent application after publication |