Title:
(E)-1,1,1,4,4,4-HEXAFLUORO-2-BUTENE PRODUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2023/058370
Kind Code:
A1
Abstract:
Provided is a production method with which it is possible to obtain (E)-1,1,1,4,4,4-hexafluoro-2-butene with high yield, even when a catalyst which contains alumina having a high sodium content is used. This (E)-1,1,1,4,4,4-hexafluoro-2-butene production method comprises an isomerization step in which (Z)-1,1,1,4,4,4-hexafluoro-2-butene is brought into contact with a catalyst containing alumina, and the (Z)-1,1,1,4,4,4-hexafluoro-2-butene is isomerized to (E)-1,1,1,4,4,4-hexafluoro-2-butene. The alumina is a porous material having a plurality of pores, and the central pore diameter is from 5-40 nm, inclusive. The proportion of the total volume of pores, among all of the pores in the porous material, having a pore diameter within a range from the central pore diameter -50% to the central pore diameter +50%, inclusive, is at least 70% with respect to the volume of all of the pores.
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Inventors:
OHTSUKI KAZUAKI (JP)
KOBAYASHI HIROSHI (JP)
TANIMOTO YOSUKE (JP)
KOBAYASHI HIROSHI (JP)
TANIMOTO YOSUKE (JP)
Application Number:
PCT/JP2022/032976
Publication Date:
April 13, 2023
Filing Date:
September 01, 2022
Export Citation:
Assignee:
RESONAC CORP (JP)
International Classes:
C07C17/358; B01J23/04; C07B37/08; C07B61/00; C07C21/18
Domestic Patent References:
| WO2014185321A1 | 2014-11-20 |
Foreign References:
| JP2016534080A | 2016-11-04 | |||
| JP2006111611A | 2006-04-27 | |||
| JPH06107572A | 1994-04-19 |
Attorney, Agent or Firm:
TANAKA Hidetetsu et al. (JP)
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