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Title:
METHOD FOR INTEGRATING AMMOXIMATION REACTION AND SEPARATION AND DEVICE THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/073525
Kind Code:
A1
Abstract:
A method and device for integrating an ammoximation reaction and separation. In the method, titanium-silicon molecular sieve is used as a catalyst; an ammoximation reaction of a ketone, hydrogen peroxide and ammonia is carried out to generate an oxime; after separating a clear liquid from the reaction material by passing through cross-flow filtration, an inert alkane solvent is added to an extracted portion to extract the oxime; and the turbid liquid containing the catalyst is recycled back into the reaction system. The method for integrating reaction and separation can reduce the filtration load of a cross-flow membrane, reducing catalyst consumption, reducing investment and operation costs, and having excellent industrial application prospects.

Inventors:
WU JIAN (CN)
ZHAO CHENGJUN (CN)
WEI TIANRONG (CN)
ZHOU XUEJUN (CN)
LI WEI (CN)
CHE XIAOJUN (CN)
LI HUI (CN)
Application Number:
PCT/CN2021/127385
Publication Date:
April 14, 2022
Filing Date:
October 29, 2021
Export Citation:
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Assignee:
HUBEI JINXIANGNING CHEMICAL TECH CO LTD (CN)
International Classes:
C07C249/04; B01J8/00; C07C251/38; C07C251/44
Foreign References:
CN1939897A2007-04-04
CN101117323A2008-02-06
CN105837467A2016-08-10
CN105837468A2016-08-10
US4745221A1988-05-17
US4894478A1990-01-16
CN1191125A1998-08-26
CN1234683A1999-11-10
CN100586928C2010-02-03
CN100386307C2008-05-07
CN1939897A2007-04-04
CN105837468A2016-08-10
CN104926689A2015-09-23
Attorney, Agent or Firm:
YICHANG THREE GORGES PATENT (CN)
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