Method for preparing aqueous quaternary ammonium hydroxide solut

Details Method for preparing aqueous quaternary ammonium hydroxide solut Method for preparing aqueous quaternary ammonium hydroxide solut

1993-12-15

1995-02-28

Niebling, John

Chemistry: electrical and wave energy

Processes and products

204 84, 2041824, C25B 302

Patent

active

053933869

ABSTRACT:
The present invention-provides a method for preparing a high-purity aqueous quaternary ammonium hydroxide solution, and there is here disclosed this method for preparing the high-purity aqueous quaternary ammonium hydroxide solution which comprises reacting a quaternary ammonium organic acid salt with hydrogen peroxide, oxygen or an oxygen-containing gas in the presence of a platinum group metal catalyst to produce a quaternary ammonium inorganic acid salt, and then electrolyzing this inorganic acid salt by the use of an electrolytic tank having a cation exchange membrane.

REFERENCES:
patent: 4572769 (1986-02-01), Shimizu
patent: 4634509 (1987-01-01), Shimizu et al.
Database WPI, Derwent Publications Ltd., London, GB; AN 88-068532 of JP-A-60 165 469 Jul. 16, 1986.

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