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. 05, 2001
Filed:
Jul. 19, 1999
Applicant:
Inventors:
Robert William Styron, Marietta, GA (US);
Kamal Seyi Abiodun, College Park, GA (US);
Assignee:
Mineral Resources Technologies, LLC, Atlanta, GA (US);
Primary Examiner:
Int. Cl.
CPC ...
B32B 5/16 ; B03B 1/02 ; C04B 1/404 ; C09C 1/28 ;
U.S. Cl.
CPC ...
B32B 5/16 ; B03B 1/02 ; C04B 1/404 ; C09C 1/28 ;
Abstract
A method for producing a mineral filler and pozzolan product from fly ash is provided in which fly ash is dry processed in an air classifier to obtain a fine fraction having an average particle size of from about 0.1 to 5 microns and a coarse fraction having an average particle size of from about 6 to 20 microns. The fine fraction is then preferably passed through a magnetic separator to remove ferrous iron oxides and may optionally be treated with a surface modifier to form a mineral filler. The coarse fraction is preferably passed through a 100 mesh screen to form a pozzolan product.