| 摘要 |
A hydrogenation catalyst is made by treating finely divided or dispersed elementary nickel with a free oxygen-containing gas, while maintaining the temperature of the bed undergoing treatment at a level such that the temperature in any zone in the bed lies at a temperature below 250 DEG C., whereby the nickel surface is oxidized, the catalyst intermediary so obtained being treated with (a) elementary sulphur or (b) an organic sulphur compound or (c) H2S or (d) CS2 or (e) a mixture of two or more of (a), (b), (c) and (d), the treatment being effected such that a minor proportion of Ni2S is formed. The catalyst may be supported on sepiolite, Al2O3, silica gel, chalk and Kieselguhr. The precursor for nickel may be NiNO3 or (H.COO)2Ni. Examples are given. Specifications 848,232, 930,040, 972,245, 979,307, 989,301 and 989,302 are referred to. |
