Title:
抽出蒸留法による材料の分離方法
Document Type and Number:
Japanese Patent JP6938519
Kind Code:
B2
Abstract:
A method for separating a mixture of materials A and B by extractive distillation, using an extraction medium having a higher affinity to B than to A, collecting a liquid fraction on a collecting tray and heated and partially evaporated in a first indirect heat exchanger, collecting the resultant vapor is released into the column and a non-evaporated proportion of the liquid fraction in the sump of the column, and a series of heating, separation and cooling where partially cooled extraction medium fraction is used as heating medium for a heat exchanger.
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Inventors:
Asprion, Norbert
Application Number:
JP2018541117A
Publication Date:
September 22, 2021
Filing Date:
February 02, 2017
Export Citation:
Assignee:
BASF SE
International Classes:
C07B63/00; B01D3/40; C01B5/00; C01B7/01; C07C7/08; C07C9/10; C07C9/14; C07C11/08; C07C11/10; C07C11/167; C07C11/18; C07C15/04; C07C17/386; C07C19/04; C07C27/32; C07C31/04; C07C31/08; C07C31/10; C07C31/12; C07C45/83; C07C49/08; C07C67/54; C07C69/14; C07C253/34; C07C255/03; C07D307/06; C07D307/08
Domestic Patent References:
| JP2015533380A | ||||
| JP2115001A |
Attorney, Agent or Firm:
Satoshi Eto