IT1075838B - Metodo per migliorare la caratteristica di una membrana a scambio di cationi - Google Patents
Metodo per migliorare la caratteristica di una membrana a scambio di cationiInfo
- Publication number
- IT1075838B IT1075838B IT2285877A IT2285877A IT1075838B IT 1075838 B IT1075838 B IT 1075838B IT 2285877 A IT2285877 A IT 2285877A IT 2285877 A IT2285877 A IT 2285877A IT 1075838 B IT1075838 B IT 1075838B
- Authority
- IT
- Italy
- Prior art keywords
- cation exchange
- improve
- characteristic
- exchange membrane
- membranes
- 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
- 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
- C08J5/2206—Films, membranes or diaphragms based on organic and/or inorganic macromolecular compounds
- C08J5/2218—Synthetic macromolecular compounds
- C08J5/2231—Synthetic macromolecular compounds based on macromolecular compounds obtained by reactions involving unsaturated carbon-to-carbon bonds
- C08J5/2237—Synthetic macromolecular compounds based on macromolecular compounds obtained by reactions involving unsaturated carbon-to-carbon bonds containing fluorine
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/34—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis
- C25B1/46—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in diaphragm cells
-
- 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
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Electrochemistry (AREA)
- Metallurgy (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Treatments Of Macromolecular Shaped Articles (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4723376A JPS52130491A (en) | 1976-04-27 | 1976-04-27 | Improvement of current efficiency of cation exchange membranes |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1075838B true IT1075838B (it) | 1985-04-22 |
Family
ID=12769484
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT2285877A IT1075838B (it) | 1976-04-27 | 1977-04-27 | Metodo per migliorare la caratteristica di una membrana a scambio di cationi |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS52130491A (it) |
CA (1) | CA1091406A (it) |
DE (1) | DE2718307B2 (it) |
FR (1) | FR2361435A1 (it) |
GB (1) | GB1547534A (it) |
IT (1) | IT1075838B (it) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE453603B (sv) * | 1977-11-02 | 1988-02-15 | Asahi Glass Co Ltd | Forfarande for atervinning av elektrokemiska egenskaper for katjonbytarmembranmaterial |
GB2014590B (en) * | 1978-02-08 | 1982-06-16 | Toyo Soda Mfg Co Ltd | Process for producing cation exchange membrane |
JPS6038973B2 (ja) * | 1978-04-18 | 1985-09-04 | 旭化成株式会社 | フツ素系陽イオン交換膜の再生方法 |
US4360412A (en) * | 1980-11-17 | 1982-11-23 | Ppg Industries, Inc. | Treatment of permionic membrane |
GB2121827B (en) * | 1982-06-08 | 1985-10-16 | Ici Plc | Swelling ion-exchange membrane |
AU557081B2 (en) * | 1982-06-08 | 1986-12-04 | Imperial Chemical Industries Plc | Treatment of ion-exchange membrane |
DE3473476D1 (en) * | 1983-11-29 | 1988-09-22 | Ici Plc | Production of ion-exchange membrane |
EP0145426A3 (en) * | 1983-12-06 | 1986-07-30 | E.I. Du Pont De Nemours And Company | Process for making oriented film of fluorinated polymer |
JPH02114244U (it) * | 1989-03-01 | 1990-09-12 | ||
US6042959A (en) * | 1997-10-10 | 2000-03-28 | 3M Innovative Properties Company | Membrane electrode assembly and method of its manufacture |
US5879828A (en) * | 1997-10-10 | 1999-03-09 | Minnesota Mining And Manufacturing Company | Membrane electrode assembly |
US6136412A (en) * | 1997-10-10 | 2000-10-24 | 3M Innovative Properties Company | Microtextured catalyst transfer substrate |
US5879827A (en) * | 1997-10-10 | 1999-03-09 | Minnesota Mining And Manufacturing Company | Catalyst for membrane electrode assembly and method of making |
JP4779213B2 (ja) * | 2001-02-23 | 2011-09-28 | ユニマテック株式会社 | コーティング材 |
US20050131116A1 (en) | 2002-07-12 | 2005-06-16 | Qun Sun | Process for dissolution of highly fluorinated ion-exchange polymers |
US20030013787A1 (en) * | 2001-07-13 | 2003-01-16 | Qun Sun | Process for dissolution of highly fluorinated ion-exchange polymers |
-
1976
- 1976-04-27 JP JP4723376A patent/JPS52130491A/ja active Granted
-
1977
- 1977-04-22 CA CA276,815A patent/CA1091406A/en not_active Expired
- 1977-04-25 DE DE19772718307 patent/DE2718307B2/de not_active Ceased
- 1977-04-26 FR FR7712538A patent/FR2361435A1/fr active Granted
- 1977-04-27 IT IT2285877A patent/IT1075838B/it active
- 1977-04-27 GB GB1764477A patent/GB1547534A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6145653B2 (it) | 1986-10-09 |
FR2361435A1 (fr) | 1978-03-10 |
JPS52130491A (en) | 1977-11-01 |
GB1547534A (en) | 1979-06-20 |
DE2718307A1 (de) | 1977-11-17 |
DE2718307B2 (de) | 1979-05-03 |
FR2361435B1 (it) | 1981-03-27 |
CA1091406A (en) | 1980-12-16 |
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