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:
May. 22, 2007
Filed:
Nov. 20, 2002
Applicants:
Kalarical Janardhanan Sreeram, Chennai, IN;
Thirumalachari Ramasami, Chennai, IN;
Inventors:
Kalarical Janardhanan Sreeram, Chennai, IN;
Thirumalachari Ramasami, Chennai, IN;
Assignee:
Council of Scientific and Industrial Research, New Delhi, IN;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01G 37/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a process for simultaneous recovery of chromium and iron from Chromite Ore Processing Residue (COPR) and more particularly, the present invention relates to an economical and environment-friendly process for recovering chromium as a chromate salt and iron as an iron salt from non-leachable Chromite Ore Processing Residue and avoids landfilling of toxic metals.