Back to results
US 4,729,978 AGranted
Catalyst for dehydration of lactic acid to acrylic acid
AssigneeTexaco Inc.
InventorRobert A. Sawicki
Life of this patent
Estimating the term…
Abstract
A process for producing an acidic dehydration catalyst to convert lactic acid to acrylic acid. The process comprises impregnating an inert metal oxide carrier with a phosphate salt and buffering the impregnated carrier with a base to a pH sufficient to provide the effective dehydration catalyst.
Claims12
A process for preparing an acidic dehydration catalyst to convert lactic acid to acrylic acid, said process comprising the steps of:
- (a) impregnating an inert metal oxide carrier with a phosphate salt;
- (b) buffering said impregnated carrier with a base to a pH ranging from about 5.2 to about 6.6;
- and
- (c) recovering the catalyst.
1 more element
Dependencies are inferred from the claim text.