HYDROGENATION CATALYST AND A METHOD FOR PREPARATION THEREOF Russian patent published in 2007 - IPC B01J23/44 B01J31/24 B01J37/18 C07C35/02 

FIELD: hydrogenation-dehydrogenation catalysts.

SUBSTANCE: invention is dealing with development of effective catalyst for hydrogenation of unsaturated hydrocarbons (alkenes, alkynes) and a method for preparation thereof, which could be used in fine organic synthesis. Catalyst contains palladium compound and a modifying additive, the former being palladium bis-acetylacetonate and the latter phosphine (PH₃) at molar ratio ranging from 1:0.1 to 1:1, respectively. Preparation of catalyst is based on reduction of palladium compound with hydrogen in presence of phosphine, which is introduced before reduction of palladium bis-acetylacetonate at catalytic system formation temperature: 70-80°C. Optimal time for molding of catalyst is 10-15 min.

EFFECT: increased catalytic activity when carrying out catalytic process under mild conditions (at room temperature and atmospheric pressure) and reduced catalyst preparation expenses.

2 cl, 5 tbl, 24 ex