Title:
ALKYLENE OXIDE PRODUCTION METHOD AND PRODUCTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/105451
Kind Code:
A1
Abstract:
The present invention relates to a method for producing alkylene oxide, and primarily solves the problems in the prior art of the accumulation of diol heavy-component impurities leading to low purity of an extractant, large loss, low yield of alkylene oxide, and high energy consumption. The method comprises a step of separating, in a separation column, a stream containing alkylene oxide, extractant, and diol; said separation column operates under conditions so as to enable the extractant and the diol to form an azeotrope, and a stream containing extractant and diol azeotrope is produced on the side line of the separation column. The method may be used for the industrial production of alkylene oxide.
Inventors:
HU SONG (CN)
HU SHUAI (CN)
YANG WEISHENG (CN)
HU SHUAI (CN)
YANG WEISHENG (CN)
Application Number:
PCT/CN2018/118506
Publication Date:
June 06, 2019
Filing Date:
November 30, 2018
Export Citation:
Assignee:
CHINA PETROLEUM & CHEM CORP (CN)
SHANGHAI RES INST PETROCHEMICAL TECH SINOPEC (CN)
SHANGHAI RES INST PETROCHEMICAL TECH SINOPEC (CN)
International Classes:
C07D301/32; C07D303/02
Foreign References:
| CN102093316A | 2011-06-15 | |||
| US4402794A | 1983-09-06 | |||
| US5529667A | 1996-06-25 | |||
| US4402794A | 1983-09-06 | |||
| US4772732A | 1988-09-20 |
Other References:
See also references of EP 3719008A4
Attorney, Agent or Firm:
RUNPING & PARTNERS (CN)
Download PDF: