Gas phase process for the hydration of propylene

Details Gas phase process for the hydration of propylene Gas phase process for the hydration of propylene

1995-03-22

1996-01-30

Evans, Joseph E.

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

Organic compounds

Oxygen containing

568695, C07C 2904, C07C 3110

Patent

active

054881862

ABSTRACT:
A process is presented for the hydration of light olefins to produce C.sub.2 -C.sub.7 aliphatic alcohols with improved selectivity, catalyst productivity and catalyst stability. Acidic medium pore, shape selective metallosilicate catalyst particles are contacted with a feedstream containing light olefin plus water at elevated temperature above the dew point of water, i.e., in a gas phase, wherein the reaction mixture is essentially starved with respect to the mole ratio of water to C.sub.2 -C.sub.7 light olefin. Isopropanol is produced at a selectivity greater than 70 weight percent when the mole ration of water to propylene is between 0.05 and 0.499. Zeolite ZSM-5, ZSM-23, ZSM-35 and ferrierite are preferred catalysts.

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patent: 4886918 (1989-12-01), Sorensen et al.
patent: 4967020 (1990-10-01), Marler et al.
patent: 5144086 (1992-09-01), Harandi et al.

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