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. 26, 1988
Filed:
Jul. 22, 1987
Applicant:
Inventors:
Edward S Rogers, Princeton, IL (US);
Arno H Reidies, LaSalle, IL (US);
Mark A Herbstrith, Peru, IL (US);
Assignee:
Carus Corporation, LaSalle, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10L / ;
U.S. Cl.
CPC ...
44501 ; 44592 ;
Abstract
Self-ignition of low rank coal is inhibited by application of a permanganate salt, such as potassium permanganate, together with a phosphorus compound, such as a phosphoric or polyphosphoric acid. The inhibitors are applied in aqueous solution following drying of the particulate coal. The combination treatment is much more effective than the use of a permanganate salt alone.