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:
Oct. 13, 1987
Filed:
Dec. 20, 1985
Applicant:
Inventors:
Robert W Andrews, Toms River, NJ (US);
Francis L Himpsl, Matawan, NJ (US);
Barry K Speronello, River Edge, NJ (US);
Assignee:
Engelhard Corporation, Edison, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
502 68 ; 502 64 ;
Abstract
An improved process for ion-exchanging sodium ions in particles containing sodium form zeolite crystals and sodium silicate. The process involves an initial ion-exchange at pH about 4.5 to 5.0 with an ammonium salt followed by exchange with an ammonium salt at about pH 2.0 to 3.5. Cracking catalysts having improved cracking activity are produced.
Andrews, Robert. (1987). Fluid cracking catalyst and method of making same from waste catalyst (U.S. Patent No. 4699893). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4699893
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile