Title:
SYSTEM AND METHOD FOR SEPARATING N-METHYL-2-PYRROLIDONE/CHLOROFORM
Document Type and Number:
WIPO Patent Application WO/2017/177763
Kind Code:
A1
Abstract:
A system and method for separating N-Methyl-2-pyrrolidone (NMP)/chloroform. By combining a falling film evaporator, a forced circulation evaporator, and a fractionating column with a corresponding technological operation method, the system and method can ensure that the separated chloroform does not deteriorate and the recycled NMP has high purity.
Inventors:
TUO XINLIN (CN)
CUI QINGHAI (CN)
CUI QINGHAI (CN)
Application Number:
PCT/CN2017/073851
Publication Date:
October 19, 2017
Filing Date:
February 17, 2017
Export Citation:
Assignee:
SHANDONG WANSHENGBO SCI-TECH CO LTD (CN)
UNIV TSINGHUA (CN)
UNIV TSINGHUA (CN)
International Classes:
C07D207/267; C07C17/38; C07C19/04
Foreign References:
| CN105693585A | 2016-06-22 | |||
| CN205501169U | 2016-08-24 | |||
| CN102115454A | 2011-07-06 | |||
| CN202569586U | 2012-12-05 | |||
| CN104399266A | 2015-03-11 | |||
| CN102616973A | 2012-08-01 | |||
| CN101550233A | 2009-10-07 | |||
| US4980031A | 1990-12-25 | |||
| US4965370A | 1990-10-23 |
Attorney, Agent or Firm:
JINAN SHUNYUAN PATENT AGENCY CO., LTD. (CN)
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