B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
252/58, 260/755
B01J 23/80 (2006.01) B01J 35/10 (2006.01) C07B 31/00 (2006.01) C07C 29/141 (2006.01) C07C 29/145 (2006.01) B01J 35/02 (2006.01)
Patent
CA 2026275
In one embodiment, the invention relates to a catalyst in powdered form which comprises a major amount of the oxides of copper and zinc, and a minor amount of aluminum oxide wherein the pore volume of pores of said catalysts having a diameter of greater than about 80A° is at least about 80% of the total pore volume. In another embodiment, the invention relates to a process for preparing hydrogenation catalysts comprising the oxides of copper, zinc and aluminum which comprises the steps of (A) preparing a first aqueous solution containing at least one water-soluble copper salt and at least one water-soluble zinc salt; (B) preparing a second solution containing at least one water-soluble basic aluminum salt and at least one alkaline precipitating agent; (C) mixing the first and second solutions whereby an insoluble solid is formed; (D) recovering the insoluble solid. The invention also relates to a process for hydrogenating aldehydes, ketones, carboxylic acids and carboxylic acid esters with catalysts of the type described. Catalysts of the invention are useful in both fixed bed and slurry phase hydrogenation reactions.
Roberts Brian D.
Sullivan Thomas J.
Thakur Deepak S.
Vlchek Anita L.
Engelhard Corporation
Sim & Mcburney
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