Title:
METHOD OF OBTAINING ISOPRENE FROM C5-HYDROCARBON MIXTURE
Document Type and Number:
Japanese Patent JPS60166631
Kind Code:
A
Abstract:
Isoprene is recovered from a C5-hydrocarbon mixture containing isoprene, penta-1,3-diene and cyclopentadiene by separating the said mixture by liquid-liquid extraction or extractive distillation with the aid of a selective solvent, in combination with a distillation upstream or downstream from the liquid-liquid extraction or extractive distillation, by a method in which a stream containing penta-1,3-diene and cyclopentadiene is separated off in the upstream or downstream distillation and is catalytically hydrogenated, and the hydrogenated stream is fed to the upper part of the liquid-liquid extraction or extractive distillation.
Inventors:
ARUFUREETO RINDONAA
URURITSUHI WAAGUNAA
KURAUSU FUORUKAAMERU
WARUTAA REBAFUKA
URURITSUHI WAAGUNAA
KURAUSU FUORUKAAMERU
WARUTAA REBAFUKA
Application Number:
JP22063284A
Publication Date:
August 29, 1985
Filing Date:
October 22, 1984
Export Citation:
Assignee:
BASF AG
International Classes:
C07B61/00; C07C1/00; C07C7/08; C07C7/10; C07C7/163; C07C11/18; C07C67/00; (IPC1-7): C07C7/08; C07C7/10; C07C7/163; C07C11/18
Attorney, Agent or Firm:
Toshio Yano (2 outside)