Process for the pretreatment of light olefin fractions

Details Process for the pretreatment of light olefin fractions Process for the pretreatment of light olefin fractions

1983-11-14

1985-05-28

Gantz, Delbert E.

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

Polymerization and depolymerization

585312, 585329, 585519, 585521, 585525, 585810, C07C 318, C07C 700

Patent

active

045202257

ABSTRACT:
The invention relates to a process for the pretreatment of a light olefin fraction, or of a mixture of such fractions, for the purpose of selectively removing the isobutene and butadiene present.
In accordance with the invention, the olefin fraction is contacted with boron trifluoride in the gas phase, under such conditions and for such a length of time that the isobutene and the butadiene will polymerize selectively, and the boron trifluoride and the isobutene and butadiene polymers obtained are then conventionally separated from the effluent.

REFERENCES:
patent: 2433465 (1947-12-01), Leum et al.
patent: 2552692 (1951-05-01), Schulze et al.
patent: 3257473 (1966-06-01), Kovach
patent: 3367987 (1968-02-01), Walsh

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