Sughrue, Mion, Zinn, Macpeak & Seas
Process for preparing lower alcohols
 Lower alcohols are prepared by hydrating the corresponding olefin in an aqueous solution containing a chromium compound, phosphoric acid and heteropolyacid. Phosphoric acid has a high catalytic activity for the hydration of lower olefins, but causes a remarkable corrosion to an apparatus material under the state of an aqueous solution. The catalytic composition consisting of phosphoric acid and heteropolyacid is improved in activity and stability. Owing to the coexistence of heteropolyacid an acid degree is raised, nevertheless the corrosion of apparatus materials is not increased. As an anti-corrosive a chromium compound is incorporated into the aqueous solution containing the catalytic composition of phosphoric acid and heteropolyacid. 
Mitsui Toatsu Chemicals, Inc.
C
C07C
inventional
Kenji Tadashi Muneaki Thikashi
Yoshida Kozima Kanemaru; Higashino