Ultradispersed catalyst compositions and methods of preparation

Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Sulfur or compound containing same

Reexamination Certificate

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C502S219000, C502S220000, C502S221000, C502S222000, C502S223000

Reexamination Certificate

active

07897537

ABSTRACT:
The present invention relates generally to ultradispersed catalyst compositions and methods for preparing such catalysts. In particular, the invention provides catalyst composition of the general formula:in-line-formulae description="In-line Formulae" end="lead"?BxMyS[(1.1 to 4.6)y+(0.5 to 4)x]in-line-formulae description="In-line Formulae" end="tail"?where B is a group VIIIB non-noble metal and M is a group VI B metal and 0.05≦y/x≦15.

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