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. 02, 1993
Filed:
Oct. 03, 1991
Applicant:
Inventors:
Luigi Toro, Rome, IT;
Anna M Marabini, Frascati, IT;
Bruno Paponetti, Coppito, IT;
Bruno Passariello, Tivoli, IT;
Assignee:
Consiglio Nazionale Delle Ricerche, Rome, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ; C04B / ; C04B / ;
U.S. Cl.
CPC ...
501148 ; 501146 ; 501150 ; 501145 ; 106416 ; 106486 ; 106487 ; 106488 ;
Abstract
A chemical process is described for removing ferric iron present in submarginal quantities in concentrates of kaolin, quartz, titanium minerals, ceramic minerals for glass, paper and electronics use and other materials of industrial interest by which ferric iron is reduced to ferrous iron using acid solutions, possibly in the presence of low concentrations of sugars containing 5 or more carbon atoms.
Toro, Luigi. (1993). Process for removing iron from kaolin, quartz and other mineral (U.S. Patent No. 5190900). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5190900
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile