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. 17, 1989
Filed:
Jun. 29, 1987
Applicant:
Inventors:
Josef A Mikhlin, Montreal, CA;
C Edward Capes, Ottawa, CA;
Haresh S Divanji, Montreal, CA;
Richard D Coleman, Orleans, CA;
Assignee:
Canadian Patent and Development Ltd., Ottawa, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; C01L / ;
U.S. Cl.
CPC ...
44 20 ; 44608 ; 44627 ; 208426 ; 264117 ;
Abstract
Low-rank or oxidized coal is processed to produce fuel of relatively higher calorific value by conditioning a slurry of the coal with an electrolyte, and then agglomerating the carbonaceous portion of the coal using a coal derived agglomerating oil. Agglomerates may be first formed in a high shear mixer and then larger agglomerates formed in a low speed mixer. The agglomerates may be processed in a coal liquefaction plant and a portion of the coal derived oil produced in the plant used as the agglomerating oil.