TUNGSTEN-BASED VACANCY-KEGGIN-TYPE HETEROPOLYANION FOR HYDROCRACKING Russian patent published in 2014 - IPC C01G41/00 C01G53/00 B01J23/755 B01J23/888 B01J37/30 C10G45/08 C10G49/04 

FIELD: chemistry.

SUBSTANCE: invention is intended for chemical industry and can be used in catalysts for hydrocracking, hydroconversion and hydrofining processes. To obtain a heteropoly compound consisting of a nickel salt of vacancy-keggin-type heteropolyanions containing tungsten, x+y/2 equivalents of barium hydroxide are added to heteropolytungstic acids. Ba²⁺ cations are then substituted with Ni²⁺ cations as a result of ion exchange on cation-exchange resins subjected to exchange with Ni²⁺ cations in advance. The obtained heteropoly compound has the formula Ni_x+y/2AW_11-yO_39-5/2y,zH₂O, and in another version has the formula Ni_x+1AW₉O₃₄,zH₂O, where A is selected from phosphorus, silicon and boron, y=0 or 2, x=3.5, if A denotes phosphorus, x=4, if A denotes silicon, x=4.5, and z is a number from 0 to 36. Nickel atoms are not substituted with tungsten atoms but are located in the counterion position in the structure of said compound.

EFFECT: invention provides a high ratio Ni/W and output of more than 80%.

11 cl, 2 dwg, 4 tbl, 4 ex