Dimerization of isobutene

Details Dimerization of isobutene Dimerization of isobutene

1977-06-27

1978-07-11

Davis, C.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 310

Patent

active

041002202

ABSTRACT:
An improved process for the preparation of isobutene dimer comprising passing isobutene and a controlled amount of t-butanol and/or water (water reacts with isobutene under the conditions of the reaction to form t-butanol) through a fixed bed acidic cation exchange resin, producing only a hydrocarbon phase, removing the hydrocarbon phase, splitting the hydrocarbon phase, and recycling a portion thereof to the reaction. The recycle provides the means to control the temperature of the reaction by cooling the recycle and providing a heat sink. The controlled amount of t-butanol and/or water suppresses or inhibits the production of isobutene high polymers, e.g., trimers, tetramers and codimers (butene is also a common component of available C.sub.4 feed streams).

REFERENCES:
patent: 2574325 (1951-11-01), Gislon et al.
patent: 3164641 (1965-01-01), Bezzarin
patent: 3326866 (1967-06-01), Haag
patent: 3370101 (1968-02-01), Hayes et al.
patent: 3518323 (1970-06-01), Pine et al.
patent: 3832418 (1974-08-01), Bercik et al.
patent: 3950442 (1976-04-01), Vogel et al.
patent: 3994983 (1976-11-01), Webers et al.

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