Catalysts for dehydrogenation and/or hydrogenation of...

Details Catalysts for dehydrogenation and/or hydrogenation of... Catalysts for dehydrogenation and/or hydrogenation of...

2011-08-23

2011-08-23

Nguyen, Cam N (Department: 1736)

Chemistry of hydrocarbon compounds

Adding hydrogen to unsaturated bond of hydrocarbon, i.e.,...

C585S654000, C502S336000, C502S338000

Reexamination Certificate

active

08003837

ABSTRACT:
Catalysts comprising: a ground, spent (de)hydrogenation catalyst material present in an amount of 10 to 70% by weight based on the catalyst, the ground, spent catalyst material comprising iron oxide; and a fresh catalyst material present in an amount of 30 to 90% by weight based on the catalyst, the fresh catalyst material comprising iron oxide, wherein at least a portion of the iron oxide in the fresh catalyst material comprises a phase selected from the group consisting of hematite, potassium ferrite, and mixtures thereof are described along with processes for preparing and using the same.

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