Chemistry of hydrocarbon compounds – Unsaturated compound synthesis – From nonhydrocarbon feed
Patent
1983-05-25
1984-05-08
Davis, Curtis R.
Chemistry of hydrocarbon compounds
Unsaturated compound synthesis
From nonhydrocarbon feed
585510, 585515, C07C 100
Patent
active
044476680
ABSTRACT:
Alkyl tertiary butyl ether or alkyl tertiary amyl ether is dissociated by vapor phase contact with a cation acidic exchange resin at temperatures in the range of 150.degree. to 250.degree. F. at LHSV of 0.1 to 20 to produce a stream consisting of unreacted ether, isobutene or isoamylene and an alcohol corresponding to the alkyl radical. After the alcohol is removed, the ether/isoolefin stream may be fractionated to obtain a high purity isoolefin (99+%) or the ether/isoolefin stream can be contacted in liquid phase with a cation acidic exchange resin to selectively dimerize the isoolefin in a highly exothermic reaction, followed by fractionation of the dimerization product to produce high purity diisoolefin (97+%). In the case where the alkyl is C.sub.3 to C.sub.6 and the corresponding alcohol is produced on dissociation of the ether, combined dissociation-distillation may be carried out such that isoolefin is the overhead product and alcohol the bottom.
REFERENCES:
patent: 2403672 (1946-07-01), Matuszak
patent: 3091586 (1963-05-01), Pappas et al.
patent: 3121124 (1964-02-01), Verdol
patent: 3170000 (1965-02-01), Verdol
patent: 3270081 (1966-08-01), Verdol et al.
patent: 3317593 (1967-05-01), Enk et al.
patent: 3531539 (1970-09-01), Tidwell
patent: 3629478 (1971-12-01), Haunschild
patent: 3634534 (1972-01-01), Haunschild
patent: 3726942 (1973-04-01), Louder
patent: 3825603 (1974-07-01), Massie
patent: 3846088 (1974-11-01), Brown et al.
patent: 3940450 (1976-02-01), Lee
patent: 4100220 (1978-07-01), Bowman et al.
patent: 4198530 (1980-04-01), Wentzheimer et al.
patent: 4232177 (1980-11-01), Smith
Hearn Dennis
Jones, Jr. Edward M.
Smith, Jr. Lawrence A.
Chemical Research & Licensing Company
Davis Curtis R.
Johnson Kenneth H.
LandOfFree
Process for producing high purity isoolefins and dimers thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for producing high purity isoolefins and dimers thereof , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing high purity isoolefins and dimers thereof will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1604291