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. 01, 1976
Filed:
Mar. 29, 1974
Applicant:
Inventors:
Jagdish Chandra Agarwal, Concord, MA (US);
Richard Andre Giberti, Waltham, MA (US);
Louis John Petrovic, Sudbury, MA (US);
Assignee:
Kennecott Copper Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10L / ; C10B / ;
U.S. Cl.
CPC ...
44 / ; 423511 ; 423522 ; 423558 ; 201 17 ;
Abstract
A process for reducing the amount of free and combined sulfur, such as pyritic, organic or elemental sulfur in coal; removing of these sulfur species may be made in an acid, basic or neutral solutions; at least 50 percent and up to 90 percent of sulfur, by weight, originally present in coal may be removed.