Marvin V. Paggen
Engineering at Laura St, Sulphur, LA
License number
Louisiana PE.0017390
Issued Date
Sep 26, 1978
Expiration Date
Mar 31, 2006
Category
Civil Engineer
Type
Chemical Engineer
Address
Address
1320 Laura St, Sulphur, LA 70663
Professional information
Control Of Physical Properties Of Alumina Extrudates
US Patent:
4045372, Aug 30, 1977
Filed:
Jul 1, 1976
Appl. No.:
5/701679
Inventors:
John Lawrence Warthen - Baltimore MD
Warren Stanley Briggs - Silver Spring MD
Marvin Vernon Paggen - Sulphur LA
Warren Stanley Briggs - Silver Spring MD
Marvin Vernon Paggen - Sulphur LA
Assignee:
W. R. Grace & Co. - New York NY
International Classification:
B01J 2104
US Classification:
252463
Abstract:
A process for preparing extrudates of alumina monohydrate having densities, surface areas and pore volumes within a predetermined range by mixing the alumina with a sufficient quantity of water to prepare an extrudable product and aging this product for a period of 1/2 to 6 hours. The alumina is then extruded and the extrudates dried using conventional techniques. The alumina is primarily used as a base for auto exhaust conversion catalysts.