CN103173787A - Method for preparing indium electrolyte - Google Patents
Method for preparing indium electrolyte Download PDFInfo
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- CN103173787A CN103173787A CN2013101222141A CN201310122214A CN103173787A CN 103173787 A CN103173787 A CN 103173787A CN 2013101222141 A CN2013101222141 A CN 2013101222141A CN 201310122214 A CN201310122214 A CN 201310122214A CN 103173787 A CN103173787 A CN 103173787A
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- indium
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- kerosene
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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
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Abstract
The invention discloses a method for preparing an indium electrolyte, and aims at providing a method for preparing indium electrolyte containing no indium. The method for preparing the indium electrolyte is characterized by comprising the following steps: A, mixing kerosene and aluminum potassium ethyl chloride at the weight ratio of 1:0.1 in a liquid tank, then heating to 45-60 DEG C, and mixing by using a glass rod to dissolve aluminum potassium ethyl chloride to obtain an initial indium electrolyte; and B, cooling the initial indium electrolyte obtained from the step A to 25 DEG C, then sequentially adding and dissolving solid sodium chloride and absolute ethyl alcohol to obtain the final electrolyte, wherein the purity of aluminum potassium ethyl chloride is 99.99 percent, the purity grades of the solid sodium chloride and the absolute ethyl alcohol are analytically pure or above, and the kerosene is aviation kerosene. The method is mainly used for preparing indium electrolyte.
Description
Technical field
The present invention relates to a kind of compound method of electrolytic solution, relate in particular to a kind of compound method of indium electrolytic solution.
Background technology
Indium deserves to be called " VITAMIN of alloy ", and indium alloy can be used as braze, and indium is the new important interpolation element of lead-free solder, and the development trend of world's lead-free solder is conducive to the application of indium braze.Utilize the low-melting characteristics of indium alloy also to can be made into specific alloy, be used for the broken circuit protecting equipment of fire-extinguishing system and the thermal controls apparatus of automatic control system; The bearing metal that adds a small amount of indium manufacturing is 4～5 times of general bearing metal work-ing life; Indium alloy also can be used for the aspects such as the corrosion-resistanting decoration spare, plastic-metal of dental care, iron and steel and non-ferrous metal.Because indium has stronger resistance to corrosion and to the reflection of light ability, can be made into the speculum on warship or passenger steamer.Indium is radiosensitive to neutron, can be used as the monitoring dosage material of nuclear industry, is used at present the indium of nuclear industry, and is approximately close with the consumption on electronic industry.
Indium can be made additive in store battery, as inhibiter, can make battery become Green Product in mercury-free alkaline battery.Indium is preventing that the consumption aspect atomizing layer from constantly increasing, and the indium coating is to adopt in automobile industry at first, might spread in industry and high-grade covil construction industry to go.Sony corporation of Japan has been invented the new negative electrode that replaces scandium with indium, and the cost of every electron beam gun has just dropped to 1/10th left and right of mixing the scandium electron beam gun like this.Therefore, aspect the high-power output of televisor, long lifetime, the application development prospect of indium is noticeable.
At present, the process from 98% purification of crude indium to 99.995% indium is mainly electrolysis, and the foreign matter content of electrolytic solution is the key whether electrolytic process can the output qualified product.Because the contained impurity element of thick indium electrolytic process Anodic such as Cd, Sn, Tl, Pb etc. easily accumulate in electrolytic solution, when causing electrolysis, to separate out the indium foreign matter content high and cause product defective for negative electrode.Existing electrolyte prescription is mainly to have added sodium-chlor, gelatin, to improve the electroconductibility of solution, prevent that simultaneously negative electrode from separating out the indium lunge and short circuit, but Sn, Cd, Tl that current potential approaches are difficult to remove, and cause impurity enrichment in electrolytic solution, in order to slow down the enrichment in electrolytic solution of impurity, in current electrolysis liquid, indium content is generally all at 100 grams per liters, so need a large amount of indium configuration electrolytic solution, expense is very high and setup time is long.
Summary of the invention
The object of the present invention is to provide a kind of compound method of indium electrolytic solution, to address the above problem.
For achieving the above object, technical solution of the present invention is: a kind of compound method of indium electrolytic solution is characterized in that following steps:
A, the part by weight mixing of kerosene, ethylaluminium chloride potassium being pressed 1:0.1 in the liquid making tank reheat to 45-60 ℃, make the dissolving of ethylaluminium chloride potassium after stirring with glass stick, obtain initial indium electrolytic solution;
B, the initial indium electrolytic solution that steps A is obtained are cooled to 25 ℃, then add successively solid sodium chloride, dehydrated alcohol, namely make final electrolytic solution after dissolving.
The purity of described ethylaluminium chloride potassium is 99.99%.
Described solid sodium chloride, dehydrated alcohol be analytical pure or more than.
Described kerosene is aviation kerosene.
The invention has the beneficial effects as follows: during the electrolysis production indium in electrolytic solution residual impurity low; During electrolysis, inhibition of impurities is separated out successful; Electrolytic solution is long duration of service; Do not contain indium in electrolytic solution, expense is very low; Be applicable to the scale operationization needs.
Use the comparison of ingredients of electrolytic solution and new electrolyte after 60 days
| Classification | Pb(mg/L) | Sn(mg/L) | Cd(mg/L) | Tl(mg/L) |
| New configuration electrolytic solution | 1 | 1 | 3 | 2 |
| Use the electrolytic solution after 60 days | 2 | 2 | 3 | 3 |
Can find out in the middle of above list data, use electrolytic solution (newly configuring electrolytic solution) that the present invention makes to have life cycle long, the advantage such as in electrolytic solution foreign matter content is low was used after 60 days, and in electrolytic solution, the impurity of enrichment is less.
Embodiment
Below in conjunction with embodiment, the present invention and embodiment thereof are described in further detail.
The invention is characterized in following steps:
A, the part by weight mixing of kerosene, ethylaluminium chloride potassium being pressed 1:0.1 in the liquid making tank reheat to 45-60 ℃, make the dissolving of ethylaluminium chloride potassium after stirring with glass stick, obtain initial indium electrolytic solution;
B, the initial indium electrolytic solution that steps A is obtained are cooled to 25 ℃, then add successively solid sodium chloride, dehydrated alcohol, namely make final electrolytic solution after dissolving.
The purity of described ethylaluminium chloride potassium is 99.99%.
Described solid sodium chloride, dehydrated alcohol be analytical pure or more than.
Described kerosene is aviation kerosene.
Below provide embodiments of the invention:
Example 1
Be 99.99% ethylaluminium chloride potassium K[Al with purity
2(C
2H
5)
6Cl] 0.1kg add aviation kerosene 1kg be heated in liquid making tank (titanium tank) 45 ℃ and with glass stick stir make the dissolving of ethylaluminium chloride potassium after, obtain initial indium electrolytic solution; Then be cooled to 25 ℃, then add successively 99.99% solid sodium chloride 5g, 99.99% dehydrated alcohol 25g after stirring and dissolving, namely make final indium electrolytic solution.
Example 2
With purity be 99.99% ethylaluminium chloride potassium 0.5kg add aviation kerosene 5kg be heated in container (titanium tank) 50 ℃ and with glass stick stir make the dissolving of ethylaluminium chloride potassium after, obtain initial indium electrolytic solution; Then be cooled to 25 ℃, then add successively 99.99% solid sodium chloride 25g, 99.99% dehydrated alcohol 125g after dissolving, namely make final indium electrolytic solution, all the other are with example 1.
Example 3
With purity be 99.99% ethylaluminium chloride potassium 1kg add aviation kerosene 10kg be heated in container (titanium tank) 60 ℃ and with glass stick stir make the dissolving of ethylaluminium chloride potassium after, obtain initial indium electrolytic solution; Then be cooled to 25 ℃, then add successively 99.99% solid sodium chloride 50g, 99.99% dehydrated alcohol 250g after dissolving, namely make final indium electrolytic solution, all the other are with example 1.
Solid sodium chloride, the dehydrated alcohol place of production is Shanghai traditional Chinese medicines group, analytical pure; Ethylaluminium chloride potassium K[Al
2(C
2H
5)
6Cl] be DuPont production, be imported product, to purchase, aviation kerosene is that Sinopec company produces, and has commercially available.
Claims (4)
1. the compound method of an indium electrolytic solution is characterized in that following steps:
A, the part by weight mixing of kerosene, ethylaluminium chloride potassium being pressed 1:0.1 in the liquid making tank reheat to 45-60 ℃, make the dissolving of ethylaluminium chloride potassium after stirring with glass stick, obtain initial indium electrolytic solution;
B, the initial indium electrolytic solution that steps A is obtained are cooled to 25 ℃, then add successively solid sodium chloride, dehydrated alcohol, namely make final electrolytic solution after dissolving.
2. by compound method claimed in claim 1, the purity that it is characterized in that described ethylaluminium chloride potassium is 99.99%.
3. by compound method claimed in claim 1, it is characterized in that described solid sodium chloride, dehydrated alcohol be analytical pure or more than.
4. by compound method claimed in claim 1, it is characterized in that described kerosene is aviation kerosene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310122214.1A CN103173787B (en) | 2013-04-10 | 2013-04-10 | A kind of compound method of indium electrolytic solution |
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| CN201310122214.1A CN103173787B (en) | 2013-04-10 | 2013-04-10 | A kind of compound method of indium electrolytic solution |
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| CN103173787A true CN103173787A (en) | 2013-06-26 |
| CN103173787B CN103173787B (en) | 2015-11-11 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1905853A1 (en) * | 2006-09-29 | 2008-04-02 | Paul Wurth S.A. | Heat treatment method of metal-containing waste materials contaminated with organics and apparatus therefor |
| CN102534227A (en) * | 2012-03-01 | 2012-07-04 | 郴州市金贵银业股份有限公司 | Method for extracting indium from indium-rich smoke dust by using oxygen pressure technology |
-
2013
- 2013-04-10 CN CN201310122214.1A patent/CN103173787B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1905853A1 (en) * | 2006-09-29 | 2008-04-02 | Paul Wurth S.A. | Heat treatment method of metal-containing waste materials contaminated with organics and apparatus therefor |
| CN102534227A (en) * | 2012-03-01 | 2012-07-04 | 郴州市金贵银业股份有限公司 | Method for extracting indium from indium-rich smoke dust by using oxygen pressure technology |
Non-Patent Citations (2)
| Title |
|---|
| （俄）费多洛夫等著: "《铟化学手册》", 31 May 2005, 北京大学出版社 * |
| 王树楷著: "《铟冶炼》", 30 April 2006, 冶金工业出版社 * |
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| CN103173787B (en) | 2015-11-11 |
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Address after: 412000 Jinshan private science and Technology Park, Hetang District, Zhuzhou City, Hunan Province Patentee after: Zhuzhou Keneng New Material Co.,Ltd. Address before: 412000 Jinshan Industrial Park, Hetang District, Zhuzhou City, Hunan Province Patentee before: ZHUZHOU KENENG NEW MATERIAL Co.,Ltd. |