FIELD: petroleum chemistry. SUBSTANCE: catalyst contains, mas. silver 20.4-33.5; alkali metal 0.002-0.135; rhenium 0.01-5.0; additionally manganese 0.006; sopromotor taken from sulfur, molybdenum or their mixtures 0.0005-2.0; and the balance, inert heat-resistant solid carrier. It is better when catalyst has manganese in form of oxyanion, sopromotor, in form of sulfate or molybdate, and also leached potassium less than 50 mas. p. per mill. mas. p. of catalyst. In the other composition, catalyst contains, mas. silver 2-45; alkali metal 0.001-04; sopromotor taken from group of oxyanions of molybdenum or their mixtures 0.0005-2; additionally manganese 0.006; and the balance, heat resistant carrier. It is better when catalyst contains sulfur in form of sulfate and molybdenum in form of oxymolybdenum. EFFECT: higher efficiency. 7 cl, 10 tbl
