Title:
METHOD FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE
Document Type and Number:
WIPO Patent Application WO/2014/080916
Kind Code:
A1
Abstract:
Provided is an economically advantageous method for efficient production using readily available raw materials by a single reaction associated with thermal decomposition, with HFO-1234yf, which is useful as a new refrigerant, in a well-controlled state, wherein production of CTFE, which is a byproduct that is difficult to separate from HFO-1234yf by distillation, is suppressed and high-purity HFO-1234yf is obtained. Provided is a method for producing HFO-1234yf from R40 and TFE having: (a) a step for feeding R40 and TFE, separately or premixed, to a reactor; (b) a step for feeding a heating medium to the reactor; and (c) a step for bringing the R40, TFE, and heating medium into contact inside the reactor and producing HFO-1234yf; wherein the temperature inside the reactor in step (c) is adjusted to 400-870°C.
Inventors:
FURUTA SHOJI (JP)
TAKEUCHI YU (JP)
TAKEUCHI YU (JP)
Application Number:
PCT/JP2013/081202
Publication Date:
May 30, 2014
Filing Date:
November 19, 2013
Export Citation:
Assignee:
ASAHI GLASS CO LTD (JP)
International Classes:
C07C17/269; C07C21/18
Foreign References:
| CN102442880A | 2012-05-09 | |||
| US2931840A | 1960-04-05 | |||
| JPH02262531A | 1990-10-25 | |||
| JP5149456B1 | 2013-02-20 | |||
| JP2013241390A | 2013-12-05 |
Attorney, Agent or Firm:
SENMYO, Kenji et al. (JP)
Spring name Kenji (JP)
Spring name Kenji (JP)
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