Precious metal catalyst for debenzylation

Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Inorganic carbon containing

Reexamination Certificate

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Details

C502S185000, C502S208000, C502S213000, C502S423000, C424S405000

Reexamination Certificate

active

07659225

ABSTRACT:
Disclosed is a catalyst composite containing a metal catalyst and a specifically defined carbon support containing a carbonaceous material. For example, the carbon support may have a total pore surface area of about 800 m2/g or more and about 2,000 m2/g or less where about 20% or less of the total pore surface area is micro pore surface area. Alternatively the carbon support may have a total pore volume of at least about 0.75 cc/g where about 15% or less of the total pore volume is micro pore volume. Alternatively, the carbon support may have a phosphorus content of about 0.75% by weight or less. Also disclosed are methods of making and using the catalyst composite.

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