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:
Nov. 08, 1983
Filed:
Jan. 18, 1982
Gerhard Melcher, Cologne, DE;
Klockner-Humboldt-Deutz AG, , DE;
Abstract
Method and apparatus for smelting a sulfidic ore concentrate such as a copper concentrate in which the concentrate is smelted in an oxidizing atmosphere, the melt is after-treated with reducing gases from a plurality of lances which blow the reducing gases onto the melt in the form of concentrated streams of high kinetic energy and form a metal-rich phase and a slag phase. The improvement of the present invention is concerned with oxidizing the concentrate sufficiently to form an enriched metal matte containing more than 75% by weight metal at a throughput of more than 500 metric tons per day, the oxidizing being carried out in a smelting cyclone operating as a steam generator and at a sufficiently high temperature so that the heat transferred to the cyclone walls is at least 500,000 Kcal/sq. m. of cyclone wall/hr.