Title:
METHOD FOR PRODUCING TETRAFLUOROPROPENE
Document Type and Number:
WIPO Patent Application WO/2017/135443
Kind Code:
A1
Abstract:
The invention provides a method for producing tetrafluoropropene represented by general formula (1) by reacting monochlorotrifluoropropene represented by general formula (2) and anhydrous hydrogen fluoride in the presence of a catalyst, wherein the production method makes it possible to suppress deterioration of the catalyst while maintaining the conversion rate of the raw material and the selectivity of the target product within good ranges and to continue the reaction for an extended period of time. The invention specifically provides a method for producing tetrafluoropropene represented by general formula (1): CF3CX=CHX (in general formula (1), each X is different from the other and indicates H or F), wherein the production method includes a step for bringing an organic material including monochlorotrifluoropropene represented by general formula (2): CF3CY=CHY (in general formula (2), each Y is different from the other and indicates H or Cl.) into contact with anhydrous hydrogen fluoride in a reactor in which a catalyst is present, and the anhydrous hydrogen fluoride supplied to the reactor is 30 mol or more per mole of the organic material supplied to the reactor.
Inventors:
OHKUBO SHUN (JP)
USUI TAKASHI (JP)
CHAKI TAKEHIRO (JP)
KARUBE DAISUKE (JP)
USUI TAKASHI (JP)
CHAKI TAKEHIRO (JP)
KARUBE DAISUKE (JP)
Application Number:
PCT/JP2017/004076
Publication Date:
August 10, 2017
Filing Date:
February 03, 2017
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
C07C17/20; C07C21/18; C07B61/00
Domestic Patent References:
| WO2012098422A1 | 2012-07-26 | |||
| WO2012098421A1 | 2012-07-26 | |||
| WO2014174918A1 | 2014-10-30 | |||
| WO2010123154A2 | 2010-10-28 |
Foreign References:
| JP2014224089A | 2014-12-04 | |||
| JP2014500858A | 2014-01-16 |
Other References:
TEINZ, KATHARINA ET AL.: "Catalytic formation of 2,3,3,3-tetrafluoropropene from 2-chloro-3,3,3-trifluoropropene at fluorinated chromia: A study of reaction pathways", APPLIED CATALYSIS B: ENVIRONMENTAL, vol. 165, 2015, pages 200 - 208, XP055212251
XIE, ZUNYUN ET AL.: "Cr 2 O 3 Catalysts for Fluorination of 2-Chloro-3,3,3-trifluoropropene to 2,3,3,3-Tetrafluoropropene", INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, vol. 52, 2013, pages 3295 - 3299, XP055086333
See also references of EP 3412645A4
XIE, ZUNYUN ET AL.: "Cr 2 O 3 Catalysts for Fluorination of 2-Chloro-3,3,3-trifluoropropene to 2,3,3,3-Tetrafluoropropene", INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, vol. 52, 2013, pages 3295 - 3299, XP055086333
See also references of EP 3412645A4
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
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