Title:
METHOD FOR PROMOTING PHASE SEPARATION OF POLYMER SOLUTION AND METHOD FOR PREPARING OLEFIN POLYMER
Document Type and Number:
WIPO Patent Application WO/2023/072009
Kind Code:
A1
Abstract:
The present invention relates to the field of polymer preparation. Disclosed is a method for promoting phase separation of a polymer solution. The method for promoting the phase separation of the polymer solution of the present invention comprises: performing heat treatment on at least part of a polymer solution under flow to separate the polymer solution into a clear liquid phase and a concentrated liquid phase, wherein the Reynolds number of the flow of the polymer solution is between 0.2-30. According to the present invention, compared with performing phase separation only by means of heat treatment in the prior art, heat treatment is performed at a certain Reynolds number, such that the phase separation temperature of the solution is decreased, the phase separation duration of the solution is shortened, and the material consumption and energy consumption of the whole process are significantly reduced.
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Inventors:
SONG WENBO (CN)
FANG YUANYUAN (CN)
HAN SHULIANG (CN)
LYU JINGLAN (CN)
JIN ZHAO (CN)
WANG LUSHENG (CN)
WANG YA (CN)
FANG YUANYUAN (CN)
HAN SHULIANG (CN)
LYU JINGLAN (CN)
JIN ZHAO (CN)
WANG LUSHENG (CN)
WANG YA (CN)
Application Number:
PCT/CN2022/127181
Publication Date:
May 04, 2023
Filing Date:
October 25, 2022
Export Citation:
Assignee:
CHINA PETROLEUM & CHEM CORP (CN)
BEIJING RES INST CHEMICAL IND CHINA PETROLEUM & CHEMICAL CORP (CN)
BEIJING RES INST CHEMICAL IND CHINA PETROLEUM & CHEMICAL CORP (CN)
International Classes:
C08F6/04; B01D17/00; C08F6/06
Foreign References:
| US20090242490A1 | 2009-10-01 | |||
| GB1148809A | 1969-04-16 | |||
| US20050197487A1 | 2005-09-08 | |||
| US5306807A | 1994-04-26 | |||
| EP0149342A2 | 1985-07-24 | |||
| CN1622960A | 2005-06-01 | |||
| GB966756A | 1964-08-12 |
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (CN)
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