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LACUNARY KEGGIN TYPE HETEROPOLYANION BASED ON TUNGSTEN FOR HYDROCRACKING,
LACUNARY KEGGIN TYPE HETEROPOLYANION BASED ON TUNGSTEN FOR HYDROCRACKING,
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机译:基于钨的拉金·凯金式杂多氰基化合物的加氢裂化
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pThe invention describes a heteropolycompound constituted by a nickel salt of a lacunary Keggin type heteropolyanion comprising tungsten in its structure, with formula: Nix+y/2AW11-yO39-5/2y,zH2O wherein Ni is nickel, A is selected from phosphorus, silicon and boron, W is tungsten, O is oxygen, y=0 or 2, x=3.5 if A is phosphorus, x=4 if A is silicon, x=4.5 if A is boron, and x=m/2+2 for the rest, and z is a number in the range 0 to 36, in which said heteropolycompound has no nickel atom in substitution for a tungsten atom in its structure, said nickel atoms being placed in the counter-ion position in the structure of said compound./p[US2011230691A1]
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