Title:
PRODUCTION METHOD FOR 2,3,3,3-TETRA-FLUOROPROPENE
Document Type and Number:
WIPO Patent Application WO/2013/137408
Kind Code:
A1
Abstract:
Provided is an economic method for efficiently producing, in a sufficiently controlled state and in one reaction involving thermal decomposition, industrially useful HFO-1234yf, using readily procurable raw materials. Provided is a method for producing 2,3,3,3-tetra-fluoropropene from a raw material composition including chlorodifluoromethane and chloromethane, using a synthesizing reaction involving thermal decomposition, said method characterized by having: a step (a) in which chloromethane is premixed with chlorodifluoromethane at a ratio of 0.01-3.0 mols chloromethane to 1 mol of chlorodifluoromethane and supplied to a reaction vessel, or same are supplied separately thereto; a step (b) in which a heat medium is supplied to the reaction vessel; and a step in which the heat medium is brought in contact with the chlorodifluoromethane and the chloromethane inside the reaction vessel, and 2,3,3,3-tetra-fluoropropene is generated.
Inventors:
FURUTA SHOJI (JP)
TAKEUCHI YU (JP)
TAKEUCHI YU (JP)
Application Number:
PCT/JP2013/057257
Publication Date:
September 19, 2013
Filing Date:
March 14, 2013
Export Citation:
Assignee:
ASAHI GLASS CO LTD (JP)
International Classes:
C07C17/269; C07C21/18
Foreign References:
| CN102675038A | 2012-09-19 | |||
| US2931840A | 1960-04-05 | |||
| GB904022A | 1962-08-22 | |||
| JP2007514747A | 2007-06-07 | |||
| JPS402132B1 | 1965-02-04 | |||
| US2931840A | 1960-04-05 |
Other References:
See also references of EP 2826766A4
Attorney, Agent or Firm:
SENMYO, Kenji et al. (JP)
Spring name Kenji (JP)
Spring name Kenji (JP)
Download PDF:
Previous Patent: ELECTROPHORETIC DISPLAY DEVICE
Next Patent: PRODUCTION METHOD FOR 2,3,3,3-TETRA-FLUOROPROPENE AND 1,1-DIFLUOROETHYLENE
Next Patent: PRODUCTION METHOD FOR 2,3,3,3-TETRA-FLUOROPROPENE AND 1,1-DIFLUOROETHYLENE