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. 15, 1980
Filed:
May. 30, 1979
Applicant:
Inventors:
David M Eissenberg, Oak Ridge, TN (US);
Yin-An Liu, Opelika, AL (US);
Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C10L / ; B03C / ;
U.S. Cl.
CPC ...
44 / ; 55-3 ; 55100 ; 209 38 ; 209214 ; 2092 / ; 209232 ;
Abstract
This invention relates to an improved device and method for the high gradient magnetic beneficiation of dry pulverized coal, for the purpose of removing sulfur and ash from the coal whereby the product is a dry environmentally acceptable, low-sulfur fuel. The process involves upwardly directed recirculating air fluidization of selectively sized powdered coal in a separator having sections of increasing diameters in the direction of air flow, with magnetic field and flow rates chosen for optimum separations depending upon particulate size.