Title:
PROCESS FOR PRODUCING TRIFLUOROMETHANESULFONIC ANHYDRIDE
Document Type and Number:
WIPO Patent Application WO/2007/049613
Kind Code:
A1
Abstract:
A process for trifluoromethanesulfonic anhydride production which comprises a step in which trifluoromethanesulfonic acid is reacted with phosphorus pentoxide to yield trifluoromethanesulfonic anhydride, wherein the trifluoromethanesulfonic acid is used in excess relative to the phosphorus pentoxide to thereby prevent polyphosphoric acid from generating as a by-product and solidifying the liquid reaction mixture.
Inventors:
YATSUYANAGI HIROYUKI (JP)
KOSHIYAMA HIROSHI (JP)
HONDA TSUNETOSHI (JP)
KOSHIYAMA HIROSHI (JP)
HONDA TSUNETOSHI (JP)
Application Number:
PCT/JP2006/321157
Publication Date:
May 03, 2007
Filing Date:
October 24, 2006
Export Citation:
Assignee:
MITSUBISHI MATERIALS CORP (JP)
JEMCO INC (JP)
YATSUYANAGI HIROYUKI (JP)
KOSHIYAMA HIROSHI (JP)
HONDA TSUNETOSHI (JP)
JEMCO INC (JP)
YATSUYANAGI HIROYUKI (JP)
KOSHIYAMA HIROSHI (JP)
HONDA TSUNETOSHI (JP)
International Classes:
C07C303/00; C07C303/44; C07C309/06
Foreign References:
JPH10114734A | 1998-05-06 | |||
JPH09227498A | 1997-09-02 | |||
JP2005310245A | 2005-11-04 | |||
US5004829A | 1991-04-02 | |||
JPH02268148A | 1990-11-01 | |||
JPH09227498A | 1997-09-02 | |||
JPH10114734A | 1998-05-06 | |||
JPH11236365A | 1999-08-31 | |||
JPH11236366A | 1999-08-31 |
Other References:
See also references of EP 1942102A4
Attorney, Agent or Firm:
SHIGA, Masatake et al. (Yaesu Chuo-ku, Tokyo, JP)
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