Catalyst with nickel aluminium spinel carrier for dehydrohalogenation - of halo-hydro-carbon cpds. e.g. chloro-benzene, with high activity, selectivity and stability, which is easy and economical to produce.

摘要

Catalyst (I) for hydrogenative disposal of halohydrocarbons has a carrier (II) with its surface consisting of Ni-Al-O spinel. (II) is charged with 30-70 (wt.) % Ni, pref. as metal, esp. with a crystallite size of 50-150 A. ADVANTAGE - (I) can be made easily and economically and can later be disposed easily or used for other purposes. It is not attacked by the H halides formed and has much higher activity and longer life than Pt/gamma Al203 catalysts or catalysts with lower Ni contents. Dehydrohalogenation is very selective, i.e. aromatic rings of aromatic chlorohydrocarbons are not hydrogenated.