EP 0379021 B1 19930915 - PROCESS FOR WORKING UP THE RAFFINATE FRACTION OBTAINED IN THE EXTRACTINE DISTILLATION OF HYDROCARBON MIXTURES
Title (en)
PROCESS FOR WORKING UP THE RAFFINATE FRACTION OBTAINED IN THE EXTRACTINE DISTILLATION OF HYDROCARBON MIXTURES
Publication
Application
Priority
DE 3901587 A 19890120
Abstract (en)
[origin: US5031754A] A hydrocarbon material of the starting product is separated in an extractive distillation column in which an N-substituted morpholine whose substituents do not have more than seven carbon atoms is used as a selective solvent. The overhead product comes down as a top product of the extractive distillation and is fed through a coalescer in which the sump product comes down with a solvent content of 20 to 75% by weight at a temperature of 20 DEG to 70 DEG C. and subsequent to that is fed into a separating vessel. There it is separated into a heavier and lighter phase. After that the heavier phase is conducted into an extractive distillation column and the lighter phase into the overhead product distillation column.
IPC 1-7
IPC 8 full level
B01D 17/028 (2006.01); C10G 7/08 (2006.01)
CPC (source: EP KR US)
C10G 7/08 (2013.01 - EP KR US); Y10S 203/90 (2013.01 - EP US); Y10S 210/05 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB
DOCDB simple family (publication)
EP 0379021 A1 19900725; EP 0379021 B1 19930915; CA 2008029 A1 19900720; CA 2008029 C 19961119; DE 3901587 A1 19900726; DE 59002673 D1 19931021; ES 2047158 T3 19940216; JP 2768528 B2 19980625; JP H02232295 A 19900914; KR 0141364 B1 19980615; KR 900011881 A 19900802; US 5031754 A 19910716
DOCDB simple family (application)
EP 90100284 A 19900108; CA 2008029 A 19900118; DE 3901587 A 19890120; DE 59002673 T 19900108; ES 90100284 T 19900108; JP 855590 A 19900119; KR 900000289 A 19900111; US 46787690 A 19900119