Title:
METHOD FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE AND 1,1-DIFLUOROETHYLENE
Document Type and Number:
WIPO Patent Application WO/2014/080779
Kind Code:
A1
Abstract:
Provided is an economically advantageous method for producing HFO-1234yf, which is a substance useful as a novel cooling medium, with satisfactorily high yield by a one-cycle reaction involving thermal decomposition.
Provided is a method for producing 2,3,3,3-tetrafluoropropene and 1,1-difluoroethylene, characterized by comprising the steps of: (a) mixing chlorodifluoromethane and/or tetrafluoroethylene with methane in advance and then supplying the mixture to a reactor, or supplying chlorodifluoromethane and/or tetrafluoroethylene and methane separately to the reactor; (b) supplying a heating medium to the reactor; and (c) bringing the chlorodifluoromethane and/or the tetrafluoroethylene and the methane into contact with the heating medium in the reactor to produce 2,3,3,3-tetrafluoropropene and 1,1-difluoroethylene.
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Inventors:
TAKEUCHI YU (JP)
FURUTA SHOJI (JP)
FURUTA SHOJI (JP)
Application Number:
PCT/JP2013/080324
Publication Date:
May 30, 2014
Filing Date:
November 08, 2013
Export Citation:
Assignee:
ASAHI GLASS CO LTD (JP)
International Classes:
C07C17/272; C07C21/18
Domestic Patent References:
| WO2013137409A1 | 2013-09-19 |
Foreign References:
| JPS402132B | ||||
| US2931840A | 1960-04-05 | |||
| JP2012526043A | 2012-10-25 | |||
| JP2013227244A | 2013-11-07 | |||
| JP5149456B1 | 2013-02-20 | |||
| JP5201284B1 | 2013-06-05 |
Other References:
HAN, WENFENG ET AL., INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, vol. 49, no. 13, 2010, pages 6010 - 6019
Attorney, Agent or Firm:
SENMYO, Kenji et al. (JP)
Spring name Kenji (JP)
Spring name Kenji (JP)
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