PREPARATION METHOD OF THE PD CATALYST

摘要

A method for prepg. Pd-catalyst comprises (a) vacuum treating titanium oxide (10g) for 12 hr at 450 deg. C and putting them into a rotary vacuum evaporator; (b) dissolving PdCl2 (1.67-33.47mg, 0.01- 0.2wt.% in the catalyst) in IN HCL 100ml and mixing with sodium acetate 0.8g and diluting with distd. water to 1200mL; (c) adding (b) -soln. to the evaporator slowly; (d) rotating a flask for 48hr at 85 deg. C and at 10 torr; and (e) calcining for 3hr at a air-circulated furnace (500 deg. C). The catalyst is useful as a highly selective hydrogenating catalyst of acetylene in the polymg. ethylene.