Isopropyl alcohol purification process

Details Isopropyl alcohol purification process Isopropyl alcohol purification process

C - Chemistry, Metallurgy

07

C

202/73

C07C 29/84 (2006.01) C07C 29/86 (2006.01)

Patent

CA 1316863

ABSTRACT A process for the purification of a crude isopropyl alcohol, such as a product of propylene hydration reactions, comprising isopropyl alcohol, diisopropyl ether, water and polymeric impurities, wherein the crude isopropyl alcohol is subjected to a specified sequence of multiple dilution and phase separation steps which serves to extract a substantial portion of the diisopropyl ether and polymeric impurities. The invention is particularly useful in removing odiferous sulfur-containing impurities from the products of indirect propylene hydration processes which involve the reaction of propylene with sulfuric acid to produce isopropyl sulfate followed by hydrolysis of the sulfate to isopropyl alcohol.

554620

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