SE419453B - electrolysis - Google Patents
electrolysisInfo
- Publication number
- SE419453B SE419453B SE7511537A SE7511537A SE419453B SE 419453 B SE419453 B SE 419453B SE 7511537 A SE7511537 A SE 7511537A SE 7511537 A SE7511537 A SE 7511537A SE 419453 B SE419453 B SE 419453B
- Authority
- SE
- Sweden
- Prior art keywords
- membrane
- groups
- oct
- sulphonyl groups
- cation exchange
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/20—Manufacture of shaped structures of ion-exchange resins
- C08J5/22—Films, membranes or diaphragms
- C08J5/2287—After-treatment
- C08J5/2293—After-treatment of fluorine-containing membranes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2371/00—Characterised by the use of polyethers obtained by reactions forming an ether link in the main chain; Derivatives of such polymers
- C08J2371/08—Polyethers derived from hydroxy compounds or from their metallic derivatives
- C08J2371/10—Polyethers derived from hydroxy compounds or from their metallic derivatives from phenols
- C08J2371/12—Polyphenylene oxides
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
1485708 Cation exchange membranes DIAMOND SHAMROCK CORP 15 Oct 1975 [16 Oct 1974] 42310/75 Heading C3P [Also in Divisions B5 and C7] Cation exchange membranes for use in an electrolytic cell are obtained by surface treatment of a membrane comprising a fluorine-containing polymer having pendant sulphonyl groups with an ethylene diamine to convert the sulphonyl groups to a depth of 5-75 microns to the form on one side only, the remaining sulphonyl groups being converted to -SO 3 R where R is H, Na or K and R<SP>1</SP> is R or -SO 2 -. The membrane is preferably formed from a copolymer of tetrafluoroethylene and CF 2 = CFYfSO 2 F where Yf is a bivalent C 2 -C 8 perfluorinated radical. After treatment on one side with ethylene diamine, the membrane is further treated with alkali metal hydroxide to hydrolyse other -SO 2 F groups to -SO 3 R. The membrane is used in the electrolysis of brine with the treated surface facing the cathode.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US51514574A | 1974-10-16 | 1974-10-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE7511537L SE7511537L (en) | 1976-04-20 |
| SE419453B true SE419453B (en) | 1981-08-03 |
Family
ID=24050146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7511537A SE419453B (en) | 1974-10-16 | 1975-10-15 | electrolysis |
Country Status (20)
| Country | Link |
|---|---|
| JP (1) | JPS5164495A (en) |
| AR (1) | AR218606A1 (en) |
| AT (1) | AT340447B (en) |
| BE (1) | BE834517A (en) |
| BR (1) | BR7506694A (en) |
| CS (1) | CS193528B2 (en) |
| DD (1) | DD121033A5 (en) |
| DE (1) | DE2546194A1 (en) |
| FI (1) | FI752858A (en) |
| FR (1) | FR2288161A1 (en) |
| GB (1) | GB1485708A (en) |
| HU (1) | HU173979B (en) |
| IL (1) | IL48306A (en) |
| IN (1) | IN143622B (en) |
| IT (1) | IT1047770B (en) |
| NL (1) | NL7512112A (en) |
| PL (1) | PL95782B1 (en) |
| RO (1) | RO69556A (en) |
| SE (1) | SE419453B (en) |
| ZA (1) | ZA756520B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1166581B (en) * | 1979-01-17 | 1987-05-05 | Oronzio De Nora Impianti | CATIONIC MEMBRANES BASED ON STYRENE DIVINYLBENZENE AND 2- OR 4-VINYLPYRIDINE OR ACRYLIC ACID SULPHONATED COPOLYMERS, PROCEDURE FOR THEIR PREPARATION AND USE IN ELECTROLYSIS CELLS |
| JPS5785826A (en) * | 1980-11-17 | 1982-05-28 | Japan Atom Energy Res Inst | Cation exchange membrane |
| SG60007A1 (en) * | 1995-06-26 | 1999-02-22 | Tokuyama Corp | Fluorine-contained resin moulded articles |
| JP3307891B2 (en) * | 1998-12-22 | 2002-07-24 | 株式会社豊田中央研究所 | High heat-resistant polymer electrolyte and electrochemical device using the same |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2437395C3 (en) * | 1973-10-15 | 1979-02-08 | E.I. Du Pont De Nemours And Co., Wilmington, Del. (V.St.A.) | Film made from fluorine-containing polymers with side chains containing sulfonyl groups |
| US3969285A (en) * | 1973-12-17 | 1976-07-13 | E. I. Du Pont De Nemours And Company | Heat-treated fluorocarbon sulfonylamine cation permselectivity |
| US4037148A (en) * | 1975-08-15 | 1977-07-19 | General Electric Company | Ballast control device |
-
1975
- 1975-10-08 IN IN1932/CAL/75A patent/IN143622B/en unknown
- 1975-10-10 RO RO7583564A patent/RO69556A/en unknown
- 1975-10-14 BR BR7506694*A patent/BR7506694A/en unknown
- 1975-10-14 PL PL1975183992A patent/PL95782B1/en unknown
- 1975-10-14 FI FI752858A patent/FI752858A/fi not_active Application Discontinuation
- 1975-10-14 JP JP50123741A patent/JPS5164495A/ja active Pending
- 1975-10-15 BE BE160939A patent/BE834517A/en unknown
- 1975-10-15 GB GB42310/75A patent/GB1485708A/en not_active Expired
- 1975-10-15 FR FR7531532A patent/FR2288161A1/en active Granted
- 1975-10-15 ZA ZA756520A patent/ZA756520B/en unknown
- 1975-10-15 IT IT51779/75A patent/IT1047770B/en active
- 1975-10-15 AR AR260805A patent/AR218606A1/en active
- 1975-10-15 AT AT786775A patent/AT340447B/en not_active IP Right Cessation
- 1975-10-15 SE SE7511537A patent/SE419453B/en unknown
- 1975-10-15 DE DE19752546194 patent/DE2546194A1/en active Pending
- 1975-10-15 DD DD188875A patent/DD121033A5/xx unknown
- 1975-10-15 IL IL48306A patent/IL48306A/en unknown
- 1975-10-15 NL NL7512112A patent/NL7512112A/en not_active Application Discontinuation
- 1975-10-15 HU HU75DI275A patent/HU173979B/en unknown
- 1975-10-16 CS CS756992A patent/CS193528B2/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IL48306A0 (en) | 1975-12-31 |
| FI752858A (en) | 1976-04-17 |
| FR2288161B1 (en) | 1978-04-07 |
| HU173979B (en) | 1979-10-28 |
| BE834517A (en) | 1976-04-15 |
| GB1485708A (en) | 1977-09-14 |
| DD121033A5 (en) | 1976-07-12 |
| AR218606A1 (en) | 1980-06-30 |
| RO69556A (en) | 1980-08-15 |
| JPS5164495A (en) | 1976-06-03 |
| AT340447B (en) | 1977-12-12 |
| ATA786775A (en) | 1977-04-15 |
| PL95782B1 (en) | 1977-11-30 |
| IT1047770B (en) | 1980-10-20 |
| CS193528B2 (en) | 1979-10-31 |
| FR2288161A1 (en) | 1976-05-14 |
| SE7511537L (en) | 1976-04-20 |
| ZA756520B (en) | 1977-05-25 |
| DE2546194A1 (en) | 1976-04-29 |
| IN143622B (en) | 1978-01-07 |
| AU8565675A (en) | 1977-04-07 |
| NL7512112A (en) | 1976-04-21 |
| IL48306A (en) | 1978-09-29 |
| BR7506694A (en) | 1976-08-17 |
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