GB644743A - Improvements in or relating to the purification of selenium - Google Patents
Improvements in or relating to the purification of seleniumInfo
- Publication number
- GB644743A GB644743A GB2232648A GB2232648A GB644743A GB 644743 A GB644743 A GB 644743A GB 2232648 A GB2232648 A GB 2232648A GB 2232648 A GB2232648 A GB 2232648A GB 644743 A GB644743 A GB 644743A
- Authority
- GB
- United Kingdom
- Prior art keywords
- selenium
- precipitation
- solution
- hydroxide
- adsorbent
- 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.)
- Expired
Links
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 title abstract 3
- 229910052711 selenium Inorganic materials 0.000 title abstract 3
- 239000011669 selenium Substances 0.000 title abstract 3
- 238000000746 purification Methods 0.000 title 1
- 238000001556 precipitation Methods 0.000 abstract 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 abstract 2
- 239000003463 adsorbent Substances 0.000 abstract 2
- -1 aluminium hydroxide Chemical class 0.000 abstract 2
- JPJALAQPGMAKDF-UHFFFAOYSA-N selenium dioxide Chemical compound O=[Se]=O JPJALAQPGMAKDF-UHFFFAOYSA-N 0.000 abstract 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract 1
- ZGSDJMADBJCNPN-UHFFFAOYSA-N [S-][NH3+] Chemical compound [S-][NH3+] ZGSDJMADBJCNPN-UHFFFAOYSA-N 0.000 abstract 1
- 150000001399 aluminium compounds Chemical class 0.000 abstract 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 abstract 1
- 229910021502 aluminium hydroxide Inorganic materials 0.000 abstract 1
- 239000001164 aluminium sulphate Substances 0.000 abstract 1
- 235000011128 aluminium sulphate Nutrition 0.000 abstract 1
- 239000000908 ammonium hydroxide Substances 0.000 abstract 1
- BUACSMWVFUNQET-UHFFFAOYSA-H dialuminum;trisulfate;hydrate Chemical compound O.[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O BUACSMWVFUNQET-UHFFFAOYSA-H 0.000 abstract 1
- 229960004887 ferric hydroxide Drugs 0.000 abstract 1
- 239000000706 filtrate Substances 0.000 abstract 1
- IEECXTSVVFWGSE-UHFFFAOYSA-M iron(3+);oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Fe+3] IEECXTSVVFWGSE-UHFFFAOYSA-M 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 229940000207 selenious acid Drugs 0.000 abstract 1
- MCAHWIHFGHIESP-UHFFFAOYSA-N selenous acid Chemical compound O[Se](O)=O MCAHWIHFGHIESP-UHFFFAOYSA-N 0.000 abstract 1
- 235000010269 sulphur dioxide Nutrition 0.000 abstract 1
- 239000004291 sulphur dioxide Substances 0.000 abstract 1
- 239000006228 supernatant Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B19/00—Selenium; Tellurium; Compounds thereof
- C01B19/02—Elemental selenium or tellurium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/06—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising selenium or tellurium in uncombined form other than as impurities in semiconductor bodies of other materials
- H01L21/10—Preliminary treatment of the selenium or tellurium, its application to the foundation plate, or the subsequent treatment of the combination
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Removal Of Specific Substances (AREA)
Abstract
A solution of impure selenious acid is purified by precipitation therein of an adsorbent, e.g. a basic aluminium compound, such as aluminium hydroxide, or ferric hydroxide. Thus crude selenium is oxidized to selenium dioxide, which is dissolved in water. The pH of this solution is adjusted to 6 or 6.5 by adding ammonium hydroxide and aluminium sulphate solution is then added. After standing for 24 hours the supernatant liquid is removed, and the selenium recovered by passing sulphur dioxide through the warmed filtrate. The precipitation of the adsorbent is preferably effected in the presence of sulphide ions, e.g. by adding ammonium sulphide liquor before the precipitation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2232648A GB644743A (en) | 1948-08-24 | 1948-08-24 | Improvements in or relating to the purification of selenium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2232648A GB644743A (en) | 1948-08-24 | 1948-08-24 | Improvements in or relating to the purification of selenium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB644743A true GB644743A (en) | 1950-10-18 |
Family
ID=10177570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2232648A Expired GB644743A (en) | 1948-08-24 | 1948-08-24 | Improvements in or relating to the purification of selenium |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB644743A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2860954A (en) * | 1953-08-18 | 1958-11-18 | Vickers Inc | Method of producing purified selenium from selenious acid solution containing impurities |
| US2970051A (en) * | 1959-05-01 | 1961-01-31 | Sherritt Gordon Mines Ltd | Process for the separation of lead from solutions |
| US3474577A (en) * | 1966-09-09 | 1969-10-28 | Expo Nord Ab | House of trifurcate configuration |
| CN105018729A (en) * | 2015-08-18 | 2015-11-04 | 云南驰宏锌锗股份有限公司 | Composite additive for removing selenium and tellurium in zinc sulfate solution for purification and use method of composite additive |
-
1948
- 1948-08-24 GB GB2232648A patent/GB644743A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2860954A (en) * | 1953-08-18 | 1958-11-18 | Vickers Inc | Method of producing purified selenium from selenious acid solution containing impurities |
| US2970051A (en) * | 1959-05-01 | 1961-01-31 | Sherritt Gordon Mines Ltd | Process for the separation of lead from solutions |
| US3474577A (en) * | 1966-09-09 | 1969-10-28 | Expo Nord Ab | House of trifurcate configuration |
| CN105018729A (en) * | 2015-08-18 | 2015-11-04 | 云南驰宏锌锗股份有限公司 | Composite additive for removing selenium and tellurium in zinc sulfate solution for purification and use method of composite additive |
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