Process for producing isopropyl alcohol and di-isopropyl ether

Details Process for producing isopropyl alcohol and di-isopropyl ether Process for producing isopropyl alcohol and di-isopropyl ether

1982-05-19

1984-09-11

Evans, J. E.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568889, C07C 2700, C07C 2906, C07C 4100, C07C 4304

Patent

active

044711425

ABSTRACT:
An improved process for indirect hydration of propylene to form di-isopropyl ether and isopropyl alcohol is provided in which propylene is absorbed in sulfuric acid to form an extract which is withdrawn from the absorbing zone; water in carefully controlled amounts is admixed with the extract and the resulting mixture is passed to an ether generating zone to form a vaporous ether product and a bottoms product depleted in di-isopropyl ether and containing sulfuric acid in a concentration at least equal to the acid concentration in the extract withdrawn from the absorbing zone. The withdrawn bottoms is then divided into two portions: a first portion is recycled to the absorber; and the second such portion is admixed with sufficient water to hydrate absorbed olefin values and the resulting mixture is fed to an alcohol generator for formation of isopropyl alcohol as overhead product and dilute sulfuric acid as bottoms product.

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