Preparation of catalysts having low volume shrinkage

Details Preparation of catalysts having low volume shrinkage Preparation of catalysts having low volume shrinkage

2005-07-19

2005-07-19

Silverman, Stanley S. (Department: 1754)

Chemistry of inorganic compounds

Hydrogen or compound thereof

Elemental hydrogen

C252S373000, C423S656000, C502S345000, C502S346000

Reexamination Certificate

active

06919066

ABSTRACT:
Catalysts containing passivated copper and zinc oxide and/or alumina are prepared by(1) precipitating a mixture of catalyst precursor components dissolved or suspended in a diluent with anion-containing precipitating agents, washing and drying to form a solid catalyst precursor in the form of powder or granules,(2) calcining the solid catalyst precursor obtained in stage (1) to an anion content from the precipitating agent of from 0.1 to 2.5% by weight and(3) shaping and, if required, reducing and passivating the calcined catalyst precursor from stage (2) in any desired order to form the catalyst.

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