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. 29, 1982
Filed:
Oct. 16, 1980
Paul E Queneau, Cornish, NH (US);
Reinhardt Schuhmann, Jr, West LaFayette, IN (US);
Other;
Abstract
A process for producing a metal matte from a nonferrous metal-containing sulfide mineral concentrate in a horizontally disposed furnace wherein small sulfide particles are separated from the concentrate, compacted and introduced into the furnace along with the remainder of the concentrate; a melted iron sulfide-rich concentrate is spread onto the slag adjacent the introduction of the sulfide mineral concentrate; and a metallic iron-rich material containing carbon or silicon is spread onto the slag at a location adjacent the introduction of the melted iron sulfide-rich concentrate but spaced from the slag discharge of the furnace, such that a high-grade nonferrous metal matte is produced and the loss of nonferrous metals is averted.