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:
Nov. 10, 1981
Filed:
Jun. 30, 1980
Applicant:
Inventor:
Ronald Liotta, Clark, NJ (US);
Assignee:
Exxon Research & Engineering Co., Florham Park, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G / ; C10B / ;
U.S. Cl.
CPC ...
208 / ; 208 46 ; 201 20 ;
Abstract
Disclosed is a method for comminuting and simultaneously removing mineral matter from coal by first treating the coal with a quaternary base solution, such as tetrabutylammonium hydroxide, then physically separating the mineral matter by any conventional separation technique based on the density differences of two materials.