PROCESS FOR PRODUCING HYDROXYALKYL (METH)ACRYLATE

Title:

PROCESS FOR PRODUCING HYDROXYALKYL (METH)ACRYLATE

Document Type and Number:

Japanese Patent JP2014031326

Kind Code:

A

Abstract:

To provide a process for producing hydroxyalkyl (meth)acrylate efficiently by recovering a catalyst maintaining a sufficient activity from a distillation apparatus and reusing it.

Provided is a process for producing a hydroxyalkyl (meth)acrylate comprising the steps of: reacting (meth)acrylic acid with an alkylene oxide in the presence of a catalyst; and purifying a hydroxyalkyl (meth)acrylate by distillation from a reaction mixture obtained by the reaction. In the distillation purification step, n (n represents an integer equal to 2 or more) stage distillation is performed using n distillation apparatuses; and at least a portion of residual liquid obtained in a (n-1)th or earlier stage is used in a reaction step conducted separately from the above reaction step.

Inventors:

ISHIDA NORIMASA
TAKAGI HIROYUKI
NAKAMURA MASATAKA
JINNO HIROSHI

Application Number:

JP2012172278A

Publication Date:

February 20, 2014

Filing Date:

August 02, 2012

Export Citation:

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Assignee:

NIPPON CATALYTIC CHEM IND

International Classes:

C07C67/26; C07C67/54; C07C69/54; C07B61/00

Domestic Patent References:

JP2008127302A	2008-06-05
JP2008074795A	2008-04-03
JP2012012348A	2012-01-19
JP2001106654A	2001-04-17

Foreign References:

WO2006013971A1	2006-02-09
WO2008133222A1	2008-11-06

Attorney, Agent or Firm:

Kyuichi Ueki
Hisahiko Ueki
Tadashi Sugakawa
Hiroaki Ito

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