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:
Jul. 19, 1977
Filed:
Sep. 10, 1976
Stanley A Gembicki, Western Springs, IL (US);
Stefan H Aeschbach, Forch, CH;
UOP Inc., Des Plaines, IL (US);
Abstract
This invention relates to an extruded composition characterized by its method of preparation. A finely divided refractory inorganic oxide, preferably an alpha-alumina monohydrate, is admixed with a peptizing agent and sufficient water to produce a mixture which has a weight loss on ignition at 900.degree. C. of from about 50 to about 70%. The mixture is subjected to shear-mixing, the intensity or severity of the shear-mixing being characterized by an energy input equivalent to from about 15 to about 120 watt-hours per pound of dry refractory inorganic oxide contained in said mixture over a period of from about 0.5 to about 5 minutes. The resulting dough is subsequently extruded and the extrudate calcined. The product is particularly useful as a hydrotreating catalyst in combination with a Group VIB and Group VIII metal component.