Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
METHOD FOR TREATING ALKYLENE OXIDE AND METHOD FOR PRODUCING HYDROXYALKYL (METH)ACRYLATE USING SAME
Document Type and Number:
Japanese Patent JP2011116721
Kind Code:
A
Abstract:

To provide an alkylene oxide treatment method which can efficiently treat unreacted alkylene oxide remaining in producing a hydroxyalkyl (meth)acrylate by reacting (meth)acrylic acid with an alkylene oxide.

First, a gas containing at least an alkylene oxide is allowed to be absorbed in an absorbent solution containing an alkylene glycol, next, the alkylene oxide absorbed in the absorbent solution is hydrated in the presence of a catalyst to form an alkylene glycol, and then the hydrate solution containing the alkylene glycol is recovered. When the alkylene oxide-containing solution is treated, the alkylene oxide in the alkylene oxide-containing solution is first vaporized.


Inventors:
OTSUKA SHUHEI
NAKAJIMA YASUTAKA
TOKUDA MASANORI
MORIOKA JUNICHI
Application Number:
JP2009000277433
Publication Date:
June 16, 2011
Filing Date:
December 07, 2009
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MITSUBISHI RAYON CO
International Classes:
C07D303/04; C07C67/26; C07C69/54; C07D301/32
Domestic Patent References:
JP2001172228A2001-06-26
JP2002114740A2002-04-16
JPH10330320A1998-12-15
JP2001172228A2001-06-26
Attorney, Agent or Firm:
宮崎 昭夫
石橋 政幸
緒方 雅昭