Claims
- 1. In an electrolysis process for brine wherein a diaphragm is utilized in an electrolytic cell, the improvement wherein said diphragm is of a size of at least 1 cm in length in at least two directions, said diaphragm having permeability to water of 0.003 - 0.32 ml/cm.sup.2 /hr/cm.H.sub.2 O and comprising a diaphragm base composed of inorganic fibers selected from the group consisting of asbestos and graphite fibers and a fluorine-containing resin, said fluorine-containing resin being present in an amount of 0.5 - 60% by weight based on the weight of said diaphragm, and said diaphragm being prepared by homogeneously blending a dispersion of said inorganic fibers with said fluorine-containing resin, forming said blend into a film, and then heat treating said film so that said resin is locally sintered and adhered to the film.
- 2. The process of claim 1 wherein said fluorine-containing resin is at least one member of the group consisting of polytetrafluoroethylene, poly(tetrafluoroethylene-hexafluoropropylene), polychlorotrifluoroethylene, polyvinylidene fluoride and polyvinyl fluoride.
- 3. The process of claim 1 wherein said fluorine-containing resin is present in an amount of 5 - 50% by weight based on the weight of said diaphragm.
Priority Claims (1)
Number |
Date |
Country |
Kind |
45-70397 |
Aug 1970 |
JA |
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Parent Case Info
This is a continuation, of Application Ser. No. 398,465, filed Sept. 18, 1973, now abandoned, which is in turn, a divisional of application Ser. No. 170,999 filed Aug. 11, 1971 now abandoned.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
3694281 |
Leduc |
Sep 1972 |
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Divisions (1)
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Number |
Date |
Country |
Parent |
170999 |
Aug 1971 |
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Continuations (1)
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Number |
Date |
Country |
Parent |
398465 |
Sep 1973 |
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