The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 06, 1977
Filed:
Jun. 25, 1976
Applicant:
Inventor:
Kamel Michel Makar, Memphis, TN (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
2524 / ; 423588 ;
Abstract
A palladium-on-alumina catalyst having high activity and long life and which gives low anthraquinone usage in the cyclic anthraquinone process for making H.sub.2 O.sub.2 is produced by impregnating the alumina under conditions such that the pore surfaces are rendered alkaline and the rate of diffusion of catalytic metal into the pores is controlled.