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:
Aug. 05, 1986
Filed:
Aug. 24, 1984
Danford E Clark, Fountain Valley, CA (US);
Union Oil Company of California, Los Angeles, CA (US);
Abstract
A catalyst composition composed of a crystalline aluminosilicate Y zeolite, normally having a silica-to-alumina mole ratio of about 6.2 or above, in combination with a porous, inorganic refractory oxide. The Y zeolite contains ion-exchanged rare earth cations and ion-exchanged Group VIII noble metal cations. The combination of the zeolite and the refractory oxide contains between 4.5 weight percent and about 6.0 weight percent water. Such a catalyst containing the recited amount of water has been found to have consistently high activities when used as a catalyst in a hydrocracking process. The Y zeolites used as part of the catalyst are typically prepared by contacting an ammonium-exchanged Y zeolite with an aqueous solution of ammonium fluorosilicate.