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Title:
METHOD OF PREPARING ETHYLBENZENE HYDROPEROXIDE BY LIQUID-PHASE PEROXIDATION OF ETHYLBENZENE AND PREPARATION METHOD OF PROPYLENE OXIDE
Document Type and Number:
WIPO Patent Application WO/2019/119489
Kind Code:
A1
Abstract:
The present invention relates to a method of preparing ethylbenzene hydroperoxide by liquid-phase peroxidation of ethylbenzene and a preparation method of propylene oxide. By adding a small amount of an organic basic substance, the peroxidation between ethylbenzene and an oxygen-containing gas is facilitated. The method can effectively increase the selectivity of a target product, and the added organic basic substance does not affect the activity of a subsequent epoxidation catalyst.

Inventors:
LIU, Peng (No. 17, Tianshan Rd YED, Yantai Shandong 2, 264002, CN)
DAI, Hongtao (No. 17, Tianshan Rd YED, Yantai Shandong 2, 264002, CN)
SUN, Qinhe (No. 17, Tianshan Rd YED, Yantai Shandong 2, 264002, CN)
LIU, Ruochen (No. 17, Tianshan Rd YED, Yantai Shandong 2, 264002, CN)
SUN, Xican (No. 17, Tianshan Rd YED, Yantai Shandong 2, 264002, CN)
LI, Xingwei (No. 17, Tianshan Rd YED, Yantai Shandong 2, 264002, CN)
LANG, Xiaojun (No. 17, Tianshan Rd YED, Yantai Shandong 2, 264002, CN)
YU, Tianyong (No. 17, Tianshan Rd YED, Yantai Shandong 2, 264002, CN)
Application Number:
CN2017/118873
Publication Date:
June 27, 2019
Filing Date:
December 27, 2017
Export Citation:
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Assignee:
WANHUA CHEMICAL GROUP CO., LTD. (No. 17, Tianshan Rd YED, Yantai Shandong 2, 264002, CN)
International Classes:
C07C407/00; C07C409/08; C07D301/19
Domestic Patent References:
WO2015101641A12015-07-09
Foreign References:
CN101538020A2009-09-23
JPH0459756A1992-02-26
GB681990A1952-11-05
CN106554298A2017-04-05
CN101851187A2010-10-06
Attorney, Agent or Firm:
BEIJING TROHENG INTELLECTUAL PROPERTY LAW FIRM (Rm. 1215, Floor 11No.19 Madian East Road, Haidian District, Beijing 8, 100088, CN)
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