Multi-layer catalyst made from niobium for the catalytic...

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

Reexamination Certificate

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Details

C502S201000, C502S210000, C502S213000, C502S324000, C502S325000, C502S351000, C502S353000, C585S500000, C585S734000

Reexamination Certificate

active

07989386

ABSTRACT:
The invention relates to a multi-layer catalyst made from niobium for the catalytic conversion of hydrocarbons, comprising a) a support component made from a doped or undoped oxide or hydroxide of an element of the V sub-group of the periodic table, or mixtures thereof, b) a layer of a promoter compound, selected from oxygen, sulphur or phosphorus compounds of an element of the VI, VII and VIII sub-group or a phosphoxy compound and mixtures thereof and c) a layer comprising a compound of platinum metal. The invention further relates to a method for production of the catalyst and the use thereof.

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“Effect of preparation method on the properties of Nb2O5 promoted platinum catalysts,” Fabio B. Passos et al. Catalysis Today 43 (1998), pp. 3-9.
“Characterization and dehydrogenation of Pt/Nb2O5 catalysts,” Donato A. G. Aranda et al. Catalysis Today 28 (1996), pp. 119-125.
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