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:
Mar. 03, 2015
Filed:
Feb. 27, 2009
Samuel David Draper, Simpsonville, SC (US);
David Matthew Polizzotti, Yardley, PA (US);
Chandrashekhar Ganpatrao Sonwane, Greenville, SC (US);
Samuel David Draper, Simpsonville, SC (US);
David Matthew Polizzotti, Yardley, PA (US);
Chandrashekhar Ganpatrao Sonwane, Greenville, SC (US);
General Electric Company, Schenectady, NY (US);
Abstract
A process for treating coal includes contacting the coal with a leaching agent configured to remove a mineral from the coal; forming a wastewater stream comprising water and a concentration of a contaminant; and contacting the wastewater stream with a first side of a reverse osmosis membrane under pressure, wherein a permeate stream comprising a reduced concentration of the contaminant permeates the reverse osmosis membrane and flows from a second side of the reverse osmosis membrane, and a concentrate stream comprising an increased concentration of the contaminant is retained on the first side of the reverse osmosis membrane.