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:
Jun. 29, 1976
Filed:
Nov. 26, 1974
Applicant:
Inventors:
Michael David Gray, Cheltenham, EN;
Geoffrey Michael Kimber, Cheltenham, EN;
David Ernest Shipley, Cheltenham, EN;
Assignee:
Coal Industry (Patents) Limited, London, EN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10G / ;
U.S. Cl.
CPC ...
208-8 ; 208131 ;
Abstract
The invention relates to a process for the production of coke having a low mineral matter content which process comprises digesting coal in a high boiling aromatic oil solvent at a temperature within the range of 350.degree.C. to 480.degree.C. separating insoluble matter from the coal digest to give a coal extract and coking the coal extract characterized in that the coal prior to digestion has a volatile matter content within the range of 13% to 28% by weight.