Title:
METHOD FOR PRODUCING 1,2,3,4-TETRACHLOROHEXAFLUOROBUTANE
Document Type and Number:
WIPO Patent Application WO/2007/125975
Kind Code:
A1
Abstract:
Disclosed is a method for commercially producing 1,2,3,4-tetrachlorohexafluorobutane safely with high yield at low cost. Specifically disclosed is a method for producing 1,2,3,4-tetrachlorohexafluorobutane, which is characterized by comprising a step (1) wherein a mixture containing 1,2,3,4-tetrachlorobutane is obtained by chlorinating 1,3-butadiene, and a step (2) wherein a mixture containing 1,2,3,4-tetrachlorohexafluorobutane is obtained by reacting 1,2,3,4-tetrachlorobutane obtained in the step (1) with a fluorine gas in a gaseous phase in the presence of a dilution gas.
Inventors:
OHNO HIROMOTO (JP)
OHI TOSHIO (JP)
OHI TOSHIO (JP)
Application Number:
PCT/JP2007/058988
Publication Date:
November 08, 2007
Filing Date:
April 25, 2007
Export Citation:
Assignee:
SHOWA DENKO KK (JP)
OHNO HIROMOTO (JP)
OHI TOSHIO (JP)
OHNO HIROMOTO (JP)
OHI TOSHIO (JP)
International Classes:
C07C17/158; C07C17/383; C07C19/10
Domestic Patent References:
| WO2005023734A1 | 2005-03-17 | |||
| WO2006077727A1 | 2006-07-27 |
Foreign References:
| JPS6438034A | 1989-02-08 | |||
| JPH02117626A | 1990-05-02 |
Other References:
ADCOCK J.L. ET AL.: "Aerosol Direct Fluorination of C1 and C2 Chlorocarbons", INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, vol. 28, no. 10, 1989, pages 1547 - 1549, XP003018932
Attorney, Agent or Firm:
SUZUKI, Shunichiro (Gotanda Yamazaki Bldg. 6F13-6, Nishigotanda 7-chome, Shinagawa-k, Tokyo 31, JP)
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