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. 12, 2008
Filed:
Sep. 08, 2003
Applicants:
Charles E. Price, Madisonville, KY (US);
William Lee Barnwell, Beaver Dam, KY (US);
John G. Groppo, Jr., Wilmore, KY (US);
Inventors:
Charles E. Price, Madisonville, KY (US);
William Lee Barnwell, Beaver Dam, KY (US);
John G. Groppo, Jr., Wilmore, KY (US);
Assignee:
Charah Enviromental, Inc., Madisonville, KY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B66B 9/00 (2006.01); B66B 7/00 (2006.01); B02B 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a method of beneficiating slag, including mixing the slag with water to form a slurry. The slurry is screened through a first screen to remove a first portion of material and then screened through a second screen to remove a second portion of material. In one embodiment, the second portion of material has a carbon content less than about 5% and, more preferably, a carbon content less than about 1%.