US 12,077,516 B2
System and method for preparing epoxy chloropropane
Liangliang Zhang, Beijing (CN); Liyang Zhou, Hangzhou Zhejiang (CN); Guangwen Chu, Beijing (CN); Bibo Xia, Zhejiang (CN); Jianfeng Chen, Beijing (CN); Yutu Jiang, Zhejiang (CN); Jihong Tong, Hangzhou Zhejiang (CN); Baochang Sun, Beijing (CN); Wei Mao, Zhejiang (CN); and Yanchun Zheng, Zhejiang (CN)
Assigned to QUZHOU JUHUA POLYAMIDE FIBRE LLC., Quzhou (CN); JUHUA GROUP CO., LTD, Zhejiang (CN); and BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGY, Beijing (CN)
Appl. No. 18/269,109
Filed by QUZHOU JUHUA POLYAMIDE FIBRE LLC., Zhejiang (CN); Beijing University of Chemical Technology, Beijing (CN); and Juhua Group Co., Ltd., Hangzhou Zhejiang (CN)
PCT Filed Dec. 24, 2021, PCT No. PCT/CN2021/141200
§ 371(c)(1), (2) Date Jun. 22, 2023,
PCT Pub. No. WO2022/135564, PCT Pub. Date Jun. 30, 2022.
Claims priority of application No. 202011564263.7 (CN), filed on Dec. 25, 2020.
Prior Publication US 2024/0076277 A1, Mar. 7, 2024
Int. Cl. C07D 303/08 (2006.01)
CPC C07D 303/08 (2013.01) 10 Claims
 
1. A system for preparing epoxy chloropropane, comprising:
a first high gravity reactor, a liquid inlet of the first high gravity reactor being communicated with a liquid inlet pipeline of raw materials dichloropropanol and alkali solution;
a second high gravity reactor, a gas inlet of the second high gravity reactor being communicated with a water vapor pipeline, a gas outlet of the second high gravity reactor being communicated with a gas inlet of the first high gravity reactor;
a liquid circulation tank, an inlet of the liquid circulation tank being communicated with a liquid outlet of the first high gravity reactor, an outlet of the liquid circulation tank being respectively communicated with the liquid inlet of the first high gravity reactor and a liquid inlet of the second high gravity reactor; and
a third high gravity reactor, a gas inlet of the third high gravity being communicated with a gas outlet of the first high gravity reactor, a liquid outlet of the third high gravity being communicated with the liquid inlets of the first high gravity reactor and the second high gravity reactor, a gas outlet of the third high gravity reactor being communicated with a recovery device, a liquid inlet of the third high gravity reactor being communicated with a liquid outlet of the recovery device, wherein
a liquid outlet of the second high gravity reactor is communicated with an inlet of a chloride salt solution storage tank.