GB658326A - Improvements in or relating to the recovery of purified selenium-sulfur mixtures from crude selenium and sulfur containing material - Google Patents
Improvements in or relating to the recovery of purified selenium-sulfur mixtures from crude selenium and sulfur containing materialInfo
- Publication number
- GB658326A GB658326A GB2237349A GB2237349A GB658326A GB 658326 A GB658326 A GB 658326A GB 2237349 A GB2237349 A GB 2237349A GB 2237349 A GB2237349 A GB 2237349A GB 658326 A GB658326 A GB 658326A
- Authority
- GB
- United Kingdom
- Prior art keywords
- selenium
- sulfur
- sulphur
- purified
- relating
- 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
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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
In the process of recovering a purified sulphur-selenium mixture from crude material containing the same having a sulphur content of at least one-seventh the selenium content by weight, by heating the material out of contact with air in a mineral acid such as sulphuric or phosphoric acids, which have a boiling point above the liquefaction temperature of the material, followed by washing of the resultant mass with water, the mass is further purified by heating out of contact with air in boiling water thus freeing the residue from the acid treatment. The sulphur-selenium ratio is preferably between 1 : 7 and 1 : 2 by weight, and sulphur may be added to the crude material to ensure the lower limit is attained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2237349A GB658326A (en) | 1949-08-29 | 1949-08-29 | Improvements in or relating to the recovery of purified selenium-sulfur mixtures from crude selenium and sulfur containing material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2237349A GB658326A (en) | 1949-08-29 | 1949-08-29 | Improvements in or relating to the recovery of purified selenium-sulfur mixtures from crude selenium and sulfur containing material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB658326A true GB658326A (en) | 1951-10-03 |
Family
ID=10178323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2237349A Expired GB658326A (en) | 1949-08-29 | 1949-08-29 | Improvements in or relating to the recovery of purified selenium-sulfur mixtures from crude selenium and sulfur containing material |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB658326A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113912024A (en) * | 2021-10-22 | 2022-01-11 | 昆明理工大学 | Method for removing impurity sulfur from selenium-sulfur slag |
-
1949
- 1949-08-29 GB GB2237349A patent/GB658326A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113912024A (en) * | 2021-10-22 | 2022-01-11 | 昆明理工大学 | Method for removing impurity sulfur from selenium-sulfur slag |
| CN113912024B (en) * | 2021-10-22 | 2024-03-22 | 昆明理工大学 | Method for removing impurity sulfur from selenium-sulfur slag |
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