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. 03, 2016
Filed:
Aug. 06, 2013
Drinkard Research and Development Corporation, Charlotte, NC (US);
William F. Drinkard, Charlotte, NC (US);
Hans J. Woerner, Charlotte, NC (US);
William M. Nixon, Charlotte, NC (US);
DEEPGREEN ENGINEERING, PTE. LTD., Singapore, SG;
Abstract
An improved method for treating manganese-containing materials, such as seafloor manganese nodules, by leaching such materials with aqueous HNOand polymerized nitric oxide (NO), and more particularly to methods for recovering valuable constituents from such nodules, especially manganese, cobalt, nickel, iron, and copper. It also provides a method to leach manganese-containing material to release any titanium, vanadium, cerium, molybdenum and other metals from the manganese oxides and to make them available to be recovered, as well as providing a method of producing a fertilizer grade nitrate product.