Title:
IMPROVED METHOD FOR RECOVERING ACRYLONITRILE
Document Type and Number:
Japanese Patent JP2007297399
Kind Code:
A
Abstract:
To provide a production process of acrylonitrile or methacrylonitrile, which offers an excellent production rate and an excellent quality of the obtained product without increasing the size of a column used in recovery and purification sections.
The process is for the recovery of acrylonitrile or methacrylonitrile obtained from a reactor effluent of an ammoxidation reaction of propylene or isobutylene. The process comprises a step of passing the reactor effluent through an absorber column, a first decanter, a recovery column, a second decanter and a stripper column. The process is improved by maintaining the inside temperature of the first and second decanters at between about 32 to about 75°F.
COPYRIGHT: (C)2008,JPO&INPIT
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Inventors:
GIBSON JAMES S
RINKER JEFFREY EARLE
WACHTENDORF PAUL T
GODBOLE SANJAY P
RINKER JEFFREY EARLE
WACHTENDORF PAUL T
GODBOLE SANJAY P
Application Number:
JP2007169571A
Publication Date:
November 15, 2007
Filing Date:
June 27, 2007
Export Citation:
Assignee:
STANDARD OIL CO THE
International Classes:
C07B63/00; C07C253/32; C07C5/08; C07C253/26; C07C253/34; C07C255/03; C07C255/08
Attorney, Agent or Firm:
Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita
Takaaki Yasumura
Natsuki Morishita