JPS6461452A - Production of fluorocarbonsulfonic acid - Google Patents
Production of fluorocarbonsulfonic acidInfo
- Publication number
- JPS6461452A JPS6461452A JP62215195A JP21519587A JPS6461452A JP S6461452 A JPS6461452 A JP S6461452A JP 62215195 A JP62215195 A JP 62215195A JP 21519587 A JP21519587 A JP 21519587A JP S6461452 A JPS6461452 A JP S6461452A
- Authority
- JP
- Japan
- Prior art keywords
- solution
- potassium hydroxide
- amount
- fluorocarbonsulfonic
- precipitated
- 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.)
- Granted
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
PURPOSE:To obtain a large amount of the titled compound by a complete circulation system by a simple device and by simple operation, by bringing a fluorocarbonsulfonic acid fluoride into contact with a solution of potassium hydroxide in such a way that the surface area of the solution based on the amount of gas is enlarged. CONSTITUTION:A fluorocarbonsulfonic acid fluoride RfSO2F (Rf is 1-3C saturated or unsaturated perfluoroalkyl) is brought into contact with a solution of potassium hydroxide (absorbing solution) at <=0.5(mol./hr.m<2>), especially <=0.15 per unit gas-liquid contact area at <=room temperature, especially 60-90 deg.C, absorbed and hydrolyzed. Then potassium hydroxide is added or the system is concentrated and cooled. Potassium salt (RfSO3K) is precipitated, separated and decomposed with an acid to give the aimed compound (RfSO3H). The residual solution after separating the potassium salt is incorporated with a hydroxide of an alkali (earth) metal, the precipitated fluoride is removed, the dissipated amount of potassium hydroxide is added to the solution, which is circulated as the absorbing solution.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62215195A JPS6461452A (en) | 1987-08-31 | 1987-08-31 | Production of fluorocarbonsulfonic acid |
| US07/237,072 US4927962A (en) | 1987-08-31 | 1988-08-29 | Process of preparing fluorocarbon carboxylic or sulfonic acid from its fluoride |
| DE3829409A DE3829409C2 (en) | 1987-08-31 | 1988-08-30 | Process for the preparation of fluorocarboxylic acids or -sulfonic acids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62215195A JPS6461452A (en) | 1987-08-31 | 1987-08-31 | Production of fluorocarbonsulfonic acid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6461452A true JPS6461452A (en) | 1989-03-08 |
| JPH05382B2 JPH05382B2 (en) | 1993-01-05 |
Family
ID=16668259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62215195A Granted JPS6461452A (en) | 1987-08-31 | 1987-08-31 | Production of fluorocarbonsulfonic acid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6461452A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08245546A (en) * | 1995-02-08 | 1996-09-24 | Haldor Topsoee As | Method of hydrolyzing fluorinated sulfonyl fluoride |
| WO2007037411A1 (en) | 2005-09-30 | 2007-04-05 | Mitsubishi Materials Corporation | Potassium perfluoroalkanesulfonates and process for production thereof |
| JP2007119458A (en) * | 2005-09-30 | 2007-05-17 | Mitsubishi Materials Corp | Potassium perfluoroalkane sulfonate and process for production thereof |
| JP2010001261A (en) * | 2008-06-20 | 2010-01-07 | Mitsubishi Materials Corp | Perfluoro-bifunctional acid and method for producing the same |
| WO2013018848A1 (en) * | 2011-08-04 | 2013-02-07 | セントラル硝子株式会社 | Fluoroalkanesulfonic acid production method |
| CN115894308A (en) * | 2022-11-04 | 2023-04-04 | 中船(邯郸)派瑞特种气体股份有限公司 | Process for preparing trifluoromethanesulfonic acid |
-
1987
- 1987-08-31 JP JP62215195A patent/JPS6461452A/en active Granted
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08245546A (en) * | 1995-02-08 | 1996-09-24 | Haldor Topsoee As | Method of hydrolyzing fluorinated sulfonyl fluoride |
| WO2007037411A1 (en) | 2005-09-30 | 2007-04-05 | Mitsubishi Materials Corporation | Potassium perfluoroalkanesulfonates and process for production thereof |
| JP2007119458A (en) * | 2005-09-30 | 2007-05-17 | Mitsubishi Materials Corp | Potassium perfluoroalkane sulfonate and process for production thereof |
| US8026391B2 (en) | 2005-09-30 | 2011-09-27 | Mitsubishi Materials Corporation | Potassium perfluoroalkanesulfonate and method for producing the same |
| JP2010001261A (en) * | 2008-06-20 | 2010-01-07 | Mitsubishi Materials Corp | Perfluoro-bifunctional acid and method for producing the same |
| WO2013018848A1 (en) * | 2011-08-04 | 2013-02-07 | セントラル硝子株式会社 | Fluoroalkanesulfonic acid production method |
| JP2013035757A (en) * | 2011-08-04 | 2013-02-21 | Central Glass Co Ltd | Method for producing fluoroalkanesulfonic acid |
| US8987507B2 (en) | 2011-08-04 | 2015-03-24 | Central Glass Company, Limited | Fluoroalkanesulfonic acid production method |
| CN115894308A (en) * | 2022-11-04 | 2023-04-04 | 中船(邯郸)派瑞特种气体股份有限公司 | Process for preparing trifluoromethanesulfonic acid |
| CN115894308B (en) * | 2022-11-04 | 2024-04-05 | 中船(邯郸)派瑞特种气体股份有限公司 | Technological method for preparing trifluoromethanesulfonic acid |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05382B2 (en) | 1993-01-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |