METHOD FOR PREPARING CHLOROHYDRINS AND METHOD FOR PREPARING EPICHLOROHYDRIN USING CHLOROHYDRINS PREPARED THEREBY

WIPO Patent Application WO/2012/002647

A2

Disclosed are a method for preparing chlorohydrins and a method for preparing epichlorohydrin using chlorohydrins prepared thereby. The disclosed method for preparing chlorohydrins reacts polyhydroxy aliphatic hydrocarbon with a chlorination agent in the presence of a catalyst, comprises at least one combination of a series of unit operations including a first reaction step, a water removal step, and a second reaction step, in the respective order, and after mixing at least a portion of a reaction mixture discharged from at least one of the reaction steps from the plurality of reaction steps with an additional chlorinated agent, recirculates the reaction mixture to the reaction step from which the mixture was discharged. The disclosed method for preparing epichlorohydrin includes a step for reacting the chlorohydrins, which was prepared using the method for preparing chlorohydrins, with an alkaline chemical.

SONG WON SEOB (KR)
WOO SUNG YUL (KR)
SONG BOO WEON (KR)
PARK SEONG HAN (KR)
KWON MYOUNG SUK (KR)

PCT/KR2011/004167

January 05, 2012

June 08, 2011

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SAMSUNG FINE CHEMICALS CO LTD (KR)
SONG WON SEOB (KR)
WOO SUNG YUL (KR)
SONG BOO WEON (KR)
PARK SEONG HAN (KR)
KWON MYOUNG SUK (KR)

C07C29/80; C07C29/62; C07C31/34; C07D303/08

WO2009066327A1

2009-05-28

KR20080037613A	2008-04-30
KR20090032429A	2009-04-01
KR20070034599A	2007-03-28

None
See also references of EP 2589583A4

Y.P.LEE, MOCK & PARTNERS (KR)
리앤목특허법인 (KR)

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