GB640187A - Method of producing sodium selenate - Google Patents
Method of producing sodium selenateInfo
- Publication number
- GB640187A GB640187A GB29429/47A GB2942947A GB640187A GB 640187 A GB640187 A GB 640187A GB 29429/47 A GB29429/47 A GB 29429/47A GB 2942947 A GB2942947 A GB 2942947A GB 640187 A GB640187 A GB 640187A
- Authority
- GB
- United Kingdom
- Prior art keywords
- approximately
- sodium
- solution
- concentration
- cell
- 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
- C01B19/008—Salts of oxyacids of selenium or tellurium
Abstract
640,187. Electrolytic production of sodium selenate. CANADIAN COPPER REFINERS, Ltd. Nov. 4, 1947, No. 29429. Convention date, Jan. 8. [Class 41] A method of producing sodium selenate electrolytically comprises the steps of preparing an electrolyte consisting of an aqueous solution of sodium selenite having a concentration of approximately 400 grams per litre and containing a minor proportion of at least one addition agent consisting of sodium dichromate in a concentration of approximately 5 grams per litre, sodium orthovanadate in a concentration of approximately 10 grams per litre, and sodium molybdate in a concentration of approximately 25 grams per litre, adjusting the pH value of the solution to a range of approximately 7.1 to 8.0, supplying the solution to a cell having electrodes of metallic material composed predominantly of lead, applying a direct current so as to produce an anode current density of approximately 15 amperes per sq. ft. and a cathode current density of approximately 50 amperes per sq. ft. maintaining the temperature of the solution at approximately 120‹ F., continuing the process until the selenite has been completely converted to selenate, and recovering sodium selenate from the solution after the electrolysis. A cell for use in carrying out the process comprises a case 2 provided with a lining 1 of sheet lead to which is secured at each end of the cell a pair of socket members 4. These members support pipes 5 from which depend sheet metal anodes 6. The cathode 9 is supported by a pipe 10 carried at each end by an insulating member 8. Air at a low pressure may be introduced into the cell through a U-shaped perforated pipe 18, for the purpose of agitating the electrolyte.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US640187XA | 1947-01-08 | 1947-01-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB640187A true GB640187A (en) | 1950-07-12 |
Family
ID=22053023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29429/47A Expired GB640187A (en) | 1947-01-08 | 1947-11-04 | Method of producing sodium selenate |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB640187A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115535973A (en) * | 2022-10-28 | 2022-12-30 | 四川蜀旺新能源股份有限公司 | Preparation and application of vanadium-tungsten bimetallic selenide material |
-
1947
- 1947-11-04 GB GB29429/47A patent/GB640187A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115535973A (en) * | 2022-10-28 | 2022-12-30 | 四川蜀旺新能源股份有限公司 | Preparation and application of vanadium-tungsten bimetallic selenide material |
| CN115535973B (en) * | 2022-10-28 | 2023-06-09 | 四川蜀旺新能源股份有限公司 | Preparation and application of vanadium-tungsten bimetallic selenide material |
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