Obtaining but-2-enes from C.sub.4 -hydrocarbon mixtures which co

Details Obtaining but-2-enes from C.sub.4 -hydrocarbon mixtures which co Obtaining but-2-enes from C.sub.4 -hydrocarbon mixtures which co

1985-07-26

1988-10-11

Pal, Asok

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

By double-bond-shift isomerization

585664, 585667, 585671, C07C 523

Patent

active

047773227

ABSTRACT:
But-2-enes are obtained from C.sub.4 -hydrocarbon mixtures which contain but-1-ene and may or may not contain but-2-enes by catalytic isomerization of the but-1-ene to but-2-enes in an isomerization zone at elevated temperatures by a process in which the isomerization is carried out in combination with a distillative separation zone, the said hydrocarbon mixture being fed to the isomerization zone and/or distillative separation zone, the isomerization mixture obtained from the isomerization zone is passed into the distillative separation zone, a but-1-ene-containing fraction is removed above the lower third of the distillative separation zone and passed into the isomerization zone, and the but-2-enes or a fraction containing these are or is removed in the lower third of the distillative separation zone.

REFERENCES:
patent: 2403672 (1946-07-01), Matuszak
patent: 3636125 (1972-01-01), Hoppstock
patent: 3723564 (1973-03-01), Tidwell et al.
patent: 3758604 (1973-09-01), Sprecher et al.
patent: 4104321 (1978-08-01), Ward
patent: 4410754 (1983-10-01), Gewartowski
patent: 4503282 (1985-03-01), Sikkenga

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