Title:
FLUORINE-CONTAINING VINYLSULFONONIC ACID FLUORIDE OR FLUORINE-CONTAINING VINYLSULFONATE PRODUCTION METHOD, AND SEPARATION METHOD
Document Type and Number:
Japanese Patent JP2022129213
Kind Code:
A
Abstract:
To provide a method for producing a fluorine-containing vinylsulfonic acid fluoride (3) which is useful as a raw material of a fluorine-based polymer electrolyte as a main component of a diaphragm for a fuel cell, a catalyst binder polymer for a fuel cell and a diaphragm for salt electrolysis with a high yield, or a method for producing a fluorine-containing vinylsulfonate (4) which can be converted into various fluorine compounds, and to provide a method for separating a fluorine-containing vinylsulfonic acid fluoride (3) and a fluorine-containing vinylsulfonate (4) and a method for recycling a compound used in the separation method.SOLUTION: A method for producing a fluorine-containing vinylsulfonic acid fluoride (3) or a fluorine-containing vinylsulfonate (4) adds a fluorine-containing a vinylsulfonic acid anhydride (1) to an alkali metal fluoride (2) under heating, and reacts them.SELECTED DRAWING: None
Inventors:
DATE HIDEKI
NAKAMURA MITSUTAKE
NAKAMURA MITSUTAKE
Application Number:
JP2021027822A
Publication Date:
September 05, 2022
Filing Date:
February 24, 2021
Export Citation:
Assignee:
ASAHI KASEI CORP
International Classes:
C07C303/02; C07C309/10; C07C309/82
Attorney, Agent or Firm:
Kenji Sugimura
Mitsutsugu Sugimura
Koichiro Kami
Mitsutsugu Sugimura
Koichiro Kami