IL52135A - Method of forming a membrane over a standard diaphragm cell foraminous electrode and a membrane separator thus formed - Google Patents
Method of forming a membrane over a standard diaphragm cell foraminous electrode and a membrane separator thus formedInfo
- Publication number
- IL52135A IL52135A IL7752135A IL5213577A IL52135A IL 52135 A IL52135 A IL 52135A IL 7752135 A IL7752135 A IL 7752135A IL 5213577 A IL5213577 A IL 5213577A IL 52135 A IL52135 A IL 52135A
- Authority
- IL
- Israel
- Prior art keywords
- foraminous electrode
- electrode
- membrane
- forming
- foraminous
- 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
- C08J5/2206—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
- 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
-
- 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
- C25B13/00—Diaphragms; Spacing elements
- C25B13/04—Diaphragms; Spacing elements characterised by the material
-
- 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)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Polymers & Plastics (AREA)
- Medicinal Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- Electrochemistry (AREA)
- Metallurgy (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Cell Separators (AREA)
Abstract
A method is disclosed forming a membrane over a standard diaphragm cell foraminous electrode and may comprise the steps of suspending a matting material in a liquid medium, inserting a foraminous electrode into the suspension, vacuum forming a layer of the suspended matting material over the surface of the foraminous electrode so as to substantially reduce the porosity of the foraminous electrode material, applying to the surface of the foraminous electrode with the matting material thereon; a layer of thermoplastic material which includes particles of perfluorosulfonic acid resin in the sulfonyl fluoride form, baking the foraminous electrode with the layers in place until the thermoplastic material is fused into a thin and uniform film on the surface of the matting material which is substantially permeable to hydraulic flow and hydrolyzing the perfluorosulfonic acid resin to change the sulfonyl fluoride form to the cation exchange sulfonic acid form. The forming of the membrane over a standard diaphragm cell electrode assembly eliminates substantial cathode costs involved currently for converting the diaphragm electrolytic cell to a membrane electrolytic cell.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/688,842 US4036728A (en) | 1976-05-21 | 1976-05-21 | Converting a diaphragm electrolytic cell to a membrane electrolytic cell |
| US05/790,756 US4112149A (en) | 1976-05-21 | 1977-04-25 | Converting a diaphragm electrolytic cell to a membrane electrolytic cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL52135A0 IL52135A0 (en) | 1977-07-31 |
| IL52135A true IL52135A (en) | 1980-05-30 |
Family
ID=27104291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL7752135A IL52135A (en) | 1976-05-21 | 1977-05-20 | Method of forming a membrane over a standard diaphragm cell foraminous electrode and a membrane separator thus formed |
Country Status (17)
| Country | Link |
|---|---|
| JP (1) | JPS52142678A (en) |
| AR (1) | AR218623A1 (en) |
| AU (1) | AU514868B2 (en) |
| BR (1) | BR7703280A (en) |
| CA (1) | CA1118717A (en) |
| DD (1) | DD131188A5 (en) |
| DE (1) | DE2722313A1 (en) |
| FI (1) | FI771620A (en) |
| FR (1) | FR2352073A1 (en) |
| GB (1) | GB1565876A (en) |
| IL (1) | IL52135A (en) |
| MX (1) | MX145160A (en) |
| NL (1) | NL7705600A (en) |
| NO (1) | NO771758L (en) |
| PL (1) | PL117739B1 (en) |
| RO (1) | RO72502A (en) |
| SE (1) | SE7705911L (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4470889A (en) * | 1980-06-11 | 1984-09-11 | The Dow Chemical Company | Electrolytic cell having an improved ion exchange membrane and process for operating |
| US4337137A (en) * | 1980-06-11 | 1982-06-29 | The Dow Chemical Company | Composite ion exchange membranes |
| US4358545A (en) * | 1980-06-11 | 1982-11-09 | The Dow Chemical Company | Sulfonic acid electrolytic cell having flourinated polymer membrane with hydration product less than 22,000 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE788557A (en) * | 1971-09-09 | 1973-03-08 | Ppg Industries Inc | DIAPHRAGMS FOR ELECTROLYTIC CELLS |
-
1977
- 1977-05-13 MX MX169139A patent/MX145160A/en unknown
- 1977-05-17 DE DE19772722313 patent/DE2722313A1/en not_active Withdrawn
- 1977-05-17 JP JP5698477A patent/JPS52142678A/en active Pending
- 1977-05-18 SE SE7705911A patent/SE7705911L/en not_active Application Discontinuation
- 1977-05-19 PL PL1977198230A patent/PL117739B1/en unknown
- 1977-05-20 NL NL7705600A patent/NL7705600A/en not_active Application Discontinuation
- 1977-05-20 CA CA000278937A patent/CA1118717A/en not_active Expired
- 1977-05-20 DD DD7700199046A patent/DD131188A5/en unknown
- 1977-05-20 FI FI771620A patent/FI771620A/fi not_active Application Discontinuation
- 1977-05-20 IL IL7752135A patent/IL52135A/en unknown
- 1977-05-20 RO RO7790423A patent/RO72502A/en unknown
- 1977-05-20 AU AU25346/77A patent/AU514868B2/en not_active Expired
- 1977-05-20 FR FR7715495A patent/FR2352073A1/en active Granted
- 1977-05-20 NO NO771758A patent/NO771758L/en unknown
- 1977-05-20 GB GB21385/77A patent/GB1565876A/en not_active Expired
- 1977-05-20 AR AR267723A patent/AR218623A1/en active
- 1977-05-20 BR BR7703280A patent/BR7703280A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IL52135A0 (en) | 1977-07-31 |
| PL198230A1 (en) | 1978-02-13 |
| SE7705911L (en) | 1977-11-22 |
| AU514868B2 (en) | 1981-03-05 |
| AU2534677A (en) | 1978-11-23 |
| DE2722313A1 (en) | 1977-12-01 |
| BR7703280A (en) | 1978-03-14 |
| RO72502A (en) | 1982-05-10 |
| MX145160A (en) | 1982-01-12 |
| FI771620A (en) | 1977-11-22 |
| CA1118717A (en) | 1982-02-23 |
| AR218623A1 (en) | 1980-06-30 |
| FR2352073A1 (en) | 1977-12-16 |
| NL7705600A (en) | 1977-11-23 |
| FR2352073B1 (en) | 1982-08-13 |
| JPS52142678A (en) | 1977-11-28 |
| NO771758L (en) | 1977-11-22 |
| PL117739B1 (en) | 1981-08-31 |
| GB1565876A (en) | 1980-04-23 |
| DD131188A5 (en) | 1978-06-07 |
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