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:
Dec. 02, 1980
Filed:
Dec. 21, 1978
Paul E Queneau, Cornish, NH (US);
Reinhardt Schuhmann, Jr, West LaFayette, IN (US);
Other;
Abstract
Method for producing a metal matte from a nonferrous metal containing sulfide concentrate in a reverberatory type furnace by sprinkling a mixture of sulfide concentrates, flux and an oxygen-rich gas as a plurality of paraboloidal suspensions into a hot sulfur dioxide-rich atmosphere above the slag phase of the furnace charge. By introducing the concentrate, flux and oxygen-rich gas in such a manner, oxidation of the sulfide is effected prior to contact with the slag phase and substantially uniform heat and mass distribution are present throughout a major portion of the furnace. Coal is optionally introduced in a homogeneous mixture with the concentrate if nonautogenous operation is desired or slag cleaning is carried out to produce a discardable slag.