Process for the purification of diisopropenylbenzene

Details Process for the purification of diisopropenylbenzene Process for the purification of diisopropenylbenzene

1982-09-03

1983-06-28

Gantz, Delbert E.

Chemistry of hydrocarbon compounds

Adding hydrogen to unsaturated bond of hydrocarbon, i.e.,...

Hydrocarbon is contaminant in desired hydrocarbon

585266, 585271, 585804, 585807, C07C 704

Patent

active

043907415

ABSTRACT:
This invention discloses a process for the separation of diisopropenylbenzene from organic impurities in a dehydrogenation mixture comprising: (1) hydrogenating said dehydrogenation mixture to a maximum isopropenylstyrene concentration of no more than about 5% by weight in the presence of a rhodium catalyst and hydrogen to form a hydrogenated dehydrogenation mixture, followed by, (2) fractionally distilling said hydrogenated dehydrogenation mixture under conditions sufficient to separate said diisopropenylbenzene from said organic impurities in said hydrogenated dehydrogenation mixture.

REFERENCES:
patent: 3670041 (1972-06-01), Juhl et al.
patent: 4046824 (1977-09-01), Ransley

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