JPS54112382A - Regenerating method for ion exchange membrane - Google Patents
Regenerating method for ion exchange membraneInfo
- Publication number
- JPS54112382A JPS54112382A JP1857778A JP1857778A JPS54112382A JP S54112382 A JPS54112382 A JP S54112382A JP 1857778 A JP1857778 A JP 1857778A JP 1857778 A JP1857778 A JP 1857778A JP S54112382 A JPS54112382 A JP S54112382A
- Authority
- JP
- Japan
- Prior art keywords
- membrane
- acid
- exchange membrane
- soln
- electrolysis
- 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
Abstract
PURPOSE: To recover the deteriorated performance of a cation exchange membrane for electrolysis of an aq. soln. of an alkali metal salt up to above 90% of the performance of a fresh membrane by washing the deteriorated membrane with an acid, followed by swelling in an org. solvent of high polarity and dipping in a caustic alkali of higher concn. than that used in electrolysis.
CONSTITUTION: The above cation exchange membrane the performance of which is deteriorated is dipped in a soln. of an acid, e.g. mineral acid such as hydrochloric acid or org. acid such as acetic acid at about 30W80°C. The dipped membrane is then swollen in a solvent of high polarity, e.g. methanol at room temp. W the b.p. of the solvent. The swollen membrane is further dipped in a soln. of a caustic alkali of higher concn. than that present in a cathode chamber at the time of electrolysis to be regenerated.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53018577A JPS6054341B2 (en) | 1978-02-22 | 1978-02-22 | How to regenerate ion exchange membrane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53018577A JPS6054341B2 (en) | 1978-02-22 | 1978-02-22 | How to regenerate ion exchange membrane |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54112382A true JPS54112382A (en) | 1979-09-03 |
JPS6054341B2 JPS6054341B2 (en) | 1985-11-29 |
Family
ID=11975469
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53018577A Expired JPS6054341B2 (en) | 1978-02-22 | 1978-02-22 | How to regenerate ion exchange membrane |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6054341B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54137482A (en) * | 1978-04-18 | 1979-10-25 | Asahi Chem Ind Co Ltd | Regeneration of flouric cation-exchange membrane |
JPS57187042A (en) * | 1981-05-15 | 1982-11-17 | Nippon Petrochem Co Ltd | Regeneration method for ion exchange resin |
JPS591689A (en) * | 1982-06-08 | 1984-01-07 | インペリアル・ケミカル・インダストリ−ズ・ピ−エルシ− | Treatment of ion exchange membrane |
FR3032206A1 (en) * | 2015-02-04 | 2016-08-05 | Commissariat Energie Atomique | METHOD OF OPERATING A PEMFC ELECTROLYSET OR PEMFC FUEL CELL TO INCREASE LIFETIME |
-
1978
- 1978-02-22 JP JP53018577A patent/JPS6054341B2/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54137482A (en) * | 1978-04-18 | 1979-10-25 | Asahi Chem Ind Co Ltd | Regeneration of flouric cation-exchange membrane |
JPS6038973B2 (en) * | 1978-04-18 | 1985-09-04 | 旭化成株式会社 | Method for regenerating fluorine-based cation exchange membrane |
JPS57187042A (en) * | 1981-05-15 | 1982-11-17 | Nippon Petrochem Co Ltd | Regeneration method for ion exchange resin |
JPS591689A (en) * | 1982-06-08 | 1984-01-07 | インペリアル・ケミカル・インダストリ−ズ・ピ−エルシ− | Treatment of ion exchange membrane |
FR3032206A1 (en) * | 2015-02-04 | 2016-08-05 | Commissariat Energie Atomique | METHOD OF OPERATING A PEMFC ELECTROLYSET OR PEMFC FUEL CELL TO INCREASE LIFETIME |
WO2016124625A1 (en) * | 2015-02-04 | 2016-08-11 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Method for the operation of an electrolyser or a pemfc fuel cell, for increasing the service life thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS6054341B2 (en) | 1985-11-29 |
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