Title:
MICRO-INTERFACE REACTION SYSTEM AND METHOD FOR PREPARING ETHYLENE GLYCOL BY USING CHLOROETHANOL METHOD
Document Type and Number:
WIPO Patent Application WO/2022/127127
Kind Code:
A1
Abstract:
A micro-interface reaction system for preparing ethylene glycol by using a chloroethanol method, comprising: a main material reactor, a crystallizer, a first recycling reactor and a second recycling reactor. The main material reactor is connected with a sodium bicarbonate storage tank and a chloroethanol storage tank, the product obtained by a reaction in the main material reactor enters the crystallizer, and the crystallizer is connected with the first recycling reactor and the second recycling reactor. A first ammonia micro-interface generator and a carbon dioxide micro-interface generator are provided in the first recycling reactor, and a second ammonia micro-interface generator and a split-flow micro-interface generator are provided in the second recycling reactor. The first recycling reactor and the second recycling reactor are connected with the main material reactor for returning resulting sodium bicarbonate to the main material reactor. The reaction system reduces the costs of the reaction process and increases the efficiency of the reaction.
Inventors:
ZHANG ZHIBING (CN)
ZHOU ZHENG (CN)
LI LEI (CN)
ZHANG FENG (CN)
MENG WEIMIN (CN)
WANG BAORONG (CN)
YANG GAODONG (CN)
LUO HUAXUN (CN)
TIAN HONGZHOU (CN)
YANG GUOQIANG (CN)
CAO YU (CN)
ZHOU ZHENG (CN)
LI LEI (CN)
ZHANG FENG (CN)
MENG WEIMIN (CN)
WANG BAORONG (CN)
YANG GAODONG (CN)
LUO HUAXUN (CN)
TIAN HONGZHOU (CN)
YANG GUOQIANG (CN)
CAO YU (CN)
Application Number:
PCT/CN2021/109743
Publication Date:
June 23, 2022
Filing Date:
July 30, 2021
Export Citation:
Assignee:
NANJING INSTITUTE OF MICROINTERFACE TECH CO LTD (CN)
International Classes:
B01J19/00; C07C29/124; C01D7/16; C07C29/78; C07C29/80; C07C31/20
Foreign References:
| CN112479812A | 2021-03-12 | |||
| CN112624900A | 2021-04-09 | |||
| CN112645795A | 2021-04-13 | |||
| CN111686665A | 2020-09-22 | |||
| US4087474A | 1978-05-02 |
Other References:
GE XIN: "Production and Preparation of Ethylene Glycol", SHANDONG HUAGONG = SHANDONG CHEMICAL INDUSTRY., SHANDONG SHENG HUAGONG XINXI ZHONGXIN, CN, no. 2, 31 December 1997 (1997-12-31), CN , XP055943077, ISSN: 1008-021X, DOI: 10.19319/j.cnki.issn.1008-021x.1997.02.015
YANG ZAOYIN, ET AL.: "Preparation of Ethylene Glycol by Comprehensive Exploitation of Chloroethanol", HUA XUE GONG CHENG YU ZHUANG BEI =CHEMICAL ENGINEERING AND EQUIPMENT, XX, CN, no. 1, 31 December 1996 (1996-12-31), CN , pages 22 - 23, XP055943080, ISSN: 1003-0735
YANG ZAOYIN, ET AL.: "Preparation of Ethylene Glycol by Comprehensive Exploitation of Chloroethanol", HUA XUE GONG CHENG YU ZHUANG BEI =CHEMICAL ENGINEERING AND EQUIPMENT, XX, CN, no. 1, 31 December 1996 (1996-12-31), CN , pages 22 - 23, XP055943080, ISSN: 1003-0735
Attorney, Agent or Firm:
BEIJING ZHONGSUO INTELLECTUAL PROPERTY AGENCY CO. LTD (CN)
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