Extruded copper chromite-alumina hydrogenation catalyst
First Claim
1. An extruded copper chromite/alumina catalyst prepared from a blend of between about 40% and about 82% by weight of copper chromite having the formula CuO:
- CuCr2 O4 and between about 60% and about 18% by weight of an extrudable form of alumina wherein portions or all of the copper oxide and copper chromite are present in the reduced state, said catalyst having a surface area between about 20 m2 /g and about 225 m2 /g, and a packed apparent bulk density of between about 0.70 and about 1.20 g/cc.
2 Assignments
0 Petitions
Accused Products
Abstract
An extruded copper chromite-alumina catalyst is prepared by blending together from 40-82% by weight of copper chromite and 18-60% of an extrudable alumina, typically having a pseudoboehmite or α hydroxy boehmite structure. The extruded catalyst after calcining is useful for the liquid and vapor phase hydrogenation and hydrogenolysis of various carbonyl compounds and the functional side groups of aromatic compounds.
The extruded catalyst is characterized as having a surface area of between 20 and 225 square meters per gram and a packed apparent bulk density of between about 0.70 and about 1.20 g/cc.
31 Citations
16 Claims
-
1. An extruded copper chromite/alumina catalyst prepared from a blend of between about 40% and about 82% by weight of copper chromite having the formula CuO:
- CuCr2 O4 and between about 60% and about 18% by weight of an extrudable form of alumina wherein portions or all of the copper oxide and copper chromite are present in the reduced state, said catalyst having a surface area between about 20 m2 /g and about 225 m2 /g, and a packed apparent bulk density of between about 0.70 and about 1.20 g/cc.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
9. A method of preparing an extruded copper chromite/alumina catalyst comprising:
-
(a) blending from between about 18% to about 60% by weight alumina capable of being readily extruded, with between about 82% and about 40% by weight of copper chromite, between about 3% and about 7% by weight, based on alumina of a peptizing agent, and sufficient water to give an extrudable mix, (b) extruding the mix, and (c) calcining and reducing the extrudate. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
-
Specification