METHOD FOR CONVERTING BUTENES, AND METHOD FOR PURIFYING MONOFLUOROBUTANE

WIPO Patent Application WO/2018/037999

A1

The purpose of the present invention is to provide an industrially convenient and inexpensive method for efficiently removing butenes from crude monofluorobutane that includes butenes without substantially causing the monofluorobutane to, inter alia, decompose or transform. In the method for purifying monofluorobutane, crude monofluorobutane containing butenes is brought into contact with trihalomethane in the presence of an alkali aqueous solution, the butenes are converted into compounds having a higher boiling point than the monofluorobutane, whereupon water is added to the obtained reaction mixture, the generated salt is dissolved, the organic layer is separated, and the separated organic layer is purified by distillation.

WO/2017/053528	PROCESS FOR THE PRODUCTION OF CHLORINATED METHANES
WO/2005/026082	METHOD FOR REUSING HEAVY END BY-PRODUCTS IN THE MANUFACTURE OF POLYCHLORINATED ALKANES

SUGIMOTO TATSUYA (JP)

PCT/JP2017/029562

March 01, 2018

August 17, 2017

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ZEON CORP (JP)

C07C17/395; C07C17/26; C07C19/08; C07C23/04

WO2015008781A1	2015-01-22
WO2009123038A1	2009-10-08
WO2014136877A1	2014-09-12

JPS5062951A	1975-05-29
JP2015044777A	2015-03-12
JPS5946251A	1984-03-15
JP2009292749A	2009-12-17
JP2013095669A	2013-05-20
US2550953A	1951-05-01
JP2002524431A	2002-08-06
JP2015044777A	2015-03-12
JPS6032718A	1985-02-19

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 76, 1954, pages 6162
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 78, 1956, pages 5447
JOURNAL OF ORGANIC CHEMISTRY, vol. 44, 1979, pages 3872
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, vol. 52, 1979, pages 3377
See also references of EP 3505505A4

SUGIMURA Kenji (JP)

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