COPPER CATALYST FOR DEHYDROGENATION APPLICATION
First Claim
1. A catalytic composition comprising from about 35% to about 75% by weight of Cu, from about 15% to about 35% by weight of Al, and from about 5% to about 20% by weight of Mn.
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Accused Products
Abstract
Disclosed are catalytic compositions having from about 35% to about 75% of Cu by weight, from about 15% to about 35% of Al by weight, and about 5% to about 20% of Mn by weight. The catalytic compositions are bulk homogeneous compositions formed from extruding and calcinating a powder formed from a precipitation reaction of Cu(NO3)2, Mn(NO3)2, Na2Al2O3. The catalytic compositions have one or more crystalline phases of one or more of CuO and CuxMn(3-x)O4, where x is from about 1 to about 1.5, or both. The catalytic compositions are useful for the conversion of 1,4-butane-di-ol to γ-butyrolactone by a dehydrogenation reaction.
14 Citations
20 Claims
- 1. A catalytic composition comprising from about 35% to about 75% by weight of Cu, from about 15% to about 35% by weight of Al, and from about 5% to about 20% by weight of Mn.
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15. A method for producing a copper catalyst, comprising:
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co-precipitating a solid catalyst composition from solutions containing a soluble copper salt, a soluble manganese salt, and a soluble aluminum compound at a pH of about at about 6 to about 8.5; and calcining the solid catalyst composition under air from about 400 to about 700°
C. for a time period from about 2 to about 5 hours;wherein the solid catalyst composition comprises from about 35% to about 75% by weight of Cu, from about 15% to about 35% by weight of Al, and from about 5% to about 20% by weight of Mn. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification