Abstract: A process for the coproduction of aniline and diphenylamine from phenol and ammonia is shown. An aniline reaction mixture containing ammonia and phenol is at least partially reacted to form aniline and that reaction mixture is distilled to separate a portion of the product aniline and the unreacted phenol therein. Aniline and phenol are then at least partially reacted to form diphenylamine. Product aniline and diphenylamine are recovered.In the preferred embodiment the aniline formed in the aniline reaction is stripped of ammonia and water and distilled to form purified aniline and a crude bottoms product containing phenol and aniline. The latter stream is combined with the dried effluent from the diphenylamine reactor and, after distillation to separate crude diphenylamine, is recycled to the diphenylamine reactor.

Abstract: A gasoline blending stock is produced by the simultaneous reaction of a hydrocarbon feed containing at least one tertiary olefin, at least one aliphatic alcohol, and water over a suitable catalyst. In a typical embodiment, a mixed C.sub.4 stream containing isobutylene is reacted with aqueous ethanol to form a mixture of ethyl tertiary butyl ether and tertiary butanol, with minimal formation of secondary alcohols from any normal butenes present in the hydrocarbon feed.