Method of separating isobutylene from a c-4 hydrocarbon...

Details Method of separating isobutylene from a c-4 hydrocarbon... Method of separating isobutylene from a c-4 hydrocarbon...

C - Chemistry, Metallurgy

07

C

C07C 11/09 (2006.01) C07C 7/00 (2006.01) C07C 7/148 (2006.01) C07C 7/152 (2006.01) C07C 41/06 (2006.01)

Patent

CA 2077391

ABSTRACT METHOD OF SEPARATING ISOBUTYLENE FROM A C-4 HYDROCARBON FRACTION (81,027-FB) A two-step method for separating isobutylene from a C-4 hydrocarbon fraction comprising: (a) reacting the C-4 fraction with a glycol in the presence of a catalyst at a temperature of 60°C to 160°C to give a corresponding glycol mono-t- butyl ether, and subsequently (b) reacting the intermediate product over the same catalyst at a temperature of between 100°C and 220°C to produce the isolated isobutylene. The catalyst may be a heteropoly acid on an inert support or an acidic montmorillonite clay.

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