Title:
REACTION SYSTEM AND METHOD FOR AMMOXIMATION AND TERT-BUTYL ALCOHOL RECOVERY
Document Type and Number:
WIPO Patent Application WO/2021/208199
Kind Code:
A1
Abstract:
The present invention provides a reaction system and method for ammoximation and tert-butyl alcohol recovery. The reaction system comprises an oximation reactor, a reaction clear liquid buffer tank, a tail gas absorption tower, a tert-butyl alcohol recovery tower, and a tert-butyl alcohol reflux tank. A tail gas outlet is formed at the top of the oximation reactor; a discharge port is formed at the bottom of the oximation reactor; the discharge port is connected to the reaction clear liquid buffer tank; the tail gas outlet is connected to the tail gas absorption tower; a material from the reaction clear liquid buffer tank is introduced from the middle section of the tert-butyl alcohol recovery tower; the top of the tert-butyl alcohol recovery tower is connected to the tert-butyl alcohol reflux tank; and an external circulation heat exchange apparatus is provided outside the oximation reactor, and a micro-interface generator is provided inside for dispersing and breaking a gas. According to the reaction system for ammoximation and tert-butyl alcohol recovery in the present invention, after providing the micro-interface generator inside the reactor, the mass transfer area of a gas-liquid phase is increased, and the reaction temperature and pressure are reduced, thereby suppressing the occurrence of side reactions and improving the efficiency of the oximation reaction.
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Inventors:
ZHANG ZHIBING (CN)
ZHOU ZHENG (CN)
ZHANG FENG (CN)
LI LEI (CN)
MENG WEIMIN (CN)
WANG BAORONG (CN)
YANG GAODONG (CN)
LUO HUAXUN (CN)
YANG GUOQIANG (CN)
TIAN HONGZHOU (CN)
CAO YU (CN)
ZHOU ZHENG (CN)
ZHANG FENG (CN)
LI LEI (CN)
MENG WEIMIN (CN)
WANG BAORONG (CN)
YANG GAODONG (CN)
LUO HUAXUN (CN)
YANG GUOQIANG (CN)
TIAN HONGZHOU (CN)
CAO YU (CN)
Application Number:
PCT/CN2020/092774
Publication Date:
October 21, 2021
Filing Date:
May 28, 2020
Export Citation:
Assignee:
NANJING YANCHANG REACTION TECH RESEARCH INSTITUTE CO LTD (CN)
International Classes:
C07C249/04; B01J19/00; C07C29/74; C07C31/12; C07C251/44
Foreign References:
| CN102675176A | 2012-09-19 | |||
| CN210045215U | 2020-02-11 | |||
| CN210045219U | 2020-02-11 |
Other References:
ZHANG ZHIBING; TIAN HONGZHOU; ZHANG FENG; ZHOU ZHENG: "Overview of Microinterface Intensification in Multiphase Reaction Systems", CIESC JOURNAL, vol. 69, no. 1, 6 November 2017 (2017-11-06), CN , pages 44 - 49, XP009526633, ISSN: 0438-1157, DOI: 10.11949/j.issn.0438-1157.20171400
Attorney, Agent or Firm:
BEIJING ZHONGSUO INTELLECTUAL PROPERTY AGENCY CO. LTD (CN)
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