Boron phosphate catalyst for the production of dienes from...

Details Boron phosphate catalyst for the production of dienes from... Boron phosphate catalyst for the production of dienes from...

C - Chemistry, Metallurgy

07

C

252/127, 260/704

C07C 11/12 (2006.01) B01J 27/16 (2006.01) C07C 1/24 (2006.01)

Patent

CA 1272474

Abstract of the Disclosure IMPROVED BORON PHOSPHATE CATALYST FOR THE PRODUCTION OF DIENES FROM ALDEHYDES This invention is concerned with improved boron phosphate dehydration catalysts. More specifically, this invention is directed to a process for the conversion of an aldehyde to a diolefin comprising contacting an aldehyde of 4 to 6 carbon atoms in the vapor phase with a catalyst comprising boron phosphate wherein the boron phosphate has been treated with an ammonium carbonate or bicarbonate salt prior to calcination. This invention is also concerned with a large pore catalyst for dehydration reactions wherein the improvement comprises the use of a catalyst with a molar ratio of P/B of about 1.0 modified with from 0.1 to 10 mole percent, based on moles of boron, of a carbonate salt selected from (NH4)2CO3 and NH4HCO3.

514655

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