Title:
METHOD FOR PRODUCING LOW-MOLECULAR-WEIGHT FLUORINE COMPOUND
Document Type and Number:
WIPO Patent Application WO/2023/210826
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide such a temperature difference that the temperature of a product gas discharged from a reaction container becomes lower than the temperature in a decomposition reaction system, i.e., the temperature of a heated microwave absorber, in the decomposition of a fluororesin. Provided is a method for producing a low-molecular-weight fluorine compound, the method comprising a decomposition step for heating a microwave absorber by the irradiation with microwaves in a reaction container provided with a carrier gas inlet port and a decomposed gas outlet port and then bringing the heated microwave absorber into contact with particles of a material containing a fluororesin to decompose the fluororesin into the low-molecular-weight fluorine compound, in which the carrier gas temperature TI (°C) in the inlet port is set to a temperature lower than the temperature TR (°C) of the heated microwave absorber. According to this method, it becomes possible to provide such a temperature difference that the temperature of a product gas discharged from the reaction container becomes lower than the temperature in the decomposition reaction system, i.e., the temperature of the heated microwave absorber.
Inventors:
TSUKAHARA YASUNORI (JP)
TAKAMOTO TAMOTSU (JP)
OGATA TOSHIHIKO (JP)
KANNO MASAHIRO (JP)
DEGUCHI YUKARI (JP)
FUKUSHIMA KAZUAKI (JP)
KISHIKAWA YOSUKE (JP)
HANDA SHINYA (JP)
MATSUI MOTOSHI (JP)
SHIRAKAWA DAISUKE (JP)
YAMAKI YASUSHI (JP)
YAGISHITA MASAHITO (JP)
TAKAMOTO TAMOTSU (JP)
OGATA TOSHIHIKO (JP)
KANNO MASAHIRO (JP)
DEGUCHI YUKARI (JP)
FUKUSHIMA KAZUAKI (JP)
KISHIKAWA YOSUKE (JP)
HANDA SHINYA (JP)
MATSUI MOTOSHI (JP)
SHIRAKAWA DAISUKE (JP)
YAMAKI YASUSHI (JP)
YAGISHITA MASAHITO (JP)
Application Number:
PCT/JP2023/016962
Publication Date:
November 02, 2023
Filing Date:
April 28, 2023
Export Citation:
Assignee:
MICROWAVE CHEMICAL CO LTD (JP)
DAIKIN IND LTD (JP)
AGC INC (JP)
DAIKIN IND LTD (JP)
AGC INC (JP)
International Classes:
C07C21/18; C07C17/367; C07C21/185; C08J3/00; C08J11/12
Domestic Patent References:
| WO2021165923A1 | 2021-08-26 |
Foreign References:
| JP2012504633A | 2012-02-23 | |||
| JP2015142904A | 2015-08-06 | |||
| JP2006095475A | 2006-04-13 | |||
| JP2000516274A | 2000-12-05 |
Attorney, Agent or Firm:
TANAKA, Junya et al. (JP)
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