Process for the selective hydrogenation of aromatic...

Details Process for the selective hydrogenation of aromatic... Process for the selective hydrogenation of aromatic...

C - Chemistry, Metallurgy

07

C

C07C 15/46 (2006.01) C07C 5/09 (2006.01) C07C 7/167 (2006.01)

Patent

CA 2120929

2120929 9307108 PCTABS00021 A process for the selective hydrogenation of aromatic acetylene compounds present as impurities in vinyl-aromatic compounds without substantial loss of vinyl-aromatic compound comprises adding hydrogen and an inert gas to a liquid phase vinyl-aromatic compound containing aromatic acetylene compounds and contacting the aromatic acetylene compound with hydrogen in the presence of a selective hydrogenation catalyst, wherein the partial hydrogen pressure is from about 0.001 to about 0.05 bar.

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