Process for producing lower olefins

Details Process for producing lower olefins Process for producing lower olefins

C - Chemistry, Metallurgy

07

C

C07C 1/24 (2006.01) B01J 21/04 (2006.01) C07C 11/02 (2006.01)

Patent

CA 2060527

ABSTRACT OF THE INVENTION A process for the production of lower olefins by dehydrating lower alcohols having 2 to 4 carbon atoms which comprises using a .gamma.-alumina catalyst containing 0.3% by weight or less of impurities in total excluding SiO2, the impurities including 0.2% by weight or less of sulfur content calculated in terms of S04-- and 0.05% by weight or less of sodium content calculated in terms of Na20, and/or a process for the production of lower olefins by dehydrating lower alcohols having 2 to 4 carbon atoms that comprises using a .gamma.-alumina catalyst which contains 0.5 to 5% by weight of SiO2. According to the process of the present invention, lower olefins can be produced from lower alcohols with high yield and high selectivity for a prolonged period of time without reducing the catalytic activity.

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