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:
Aug. 08, 2017
Filed:
Jun. 20, 2013
Lawrence F. Mchugh, North Andover, MA (US);
Leonid N Shekhter, Ashland, MA (US);
Joseph D. Lessard, Medford, ME (US);
Daniel G. Gribbin, Portland, ME (US);
Esra Cankaya-yalcin, North Andover, MA (US);
Lawrence F. McHugh, North Andover, MA (US);
Leonid N Shekhter, Ashland, MA (US);
Joseph D. Lessard, Medford, ME (US);
Daniel G. Gribbin, Portland, ME (US);
Esra Cankaya-Yalcin, North Andover, MA (US);
Other;
Abstract
Copper is produced by a looping oxidizing process wherein oxidation of copper sulfide concentrate to molten blister copper by conversion with copper oxides (and optionally oxygen from air) in a one step, molten bath operation to produce molten blister copper, iron oxide slag, and rich SOoff gas. The blister copper is treated in an anode furnace to reduce the iron content and oxidize residual sulfur, and prepare it for either electrolysis or reoxidation.