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:
Feb. 10, 1981
Filed:
Sep. 07, 1979
Applicant:
Inventor:
Robert E Leonard, Oklahoma City, OK (US);
Assignee:
Kerr-McGee Corporation, Oklahoma City, OK (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
106103 ;
Abstract
A process for utilizing mineral-containing residue from coal liquefaction processes to produce a hydraulic cement. The residue is mixed with siliceous and calcareous matereals and compacted. The compacted solids are introduced into a kiln and fired to produce hydraulic cement clinker. The primary fuel for the clinker production is contained in the residue. The clinker is removed from the kiln and ground to produce cement.