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. 17, 1991
Filed:
Nov. 30, 1989
Applicant:
Inventors:
S Roy Morrison, Burnaby, CA;
Bijan K Miremadi, Coquitlam, CA;
Assignee:
Simon Fraser University, Burnaby, US;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B02C / ;
U.S. Cl.
CPC ...
241-1 ; 241 15 ; 241 22 ;
Abstract
A novel method of preparing a new transition alumina fractured into ultra-fine particles which have utility inter alia as catalysts. The method of preparing this new alumina fractured into ultra-fine particles comprises: (a) introducing an alkali metal into the pores of a porous alumina, and (b) immersing the alkali metal-treated alumina in water whereupon hydrogen gas is generated and fractures the alumina into ultra-fine particles.