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:
Mar. 02, 2010
Filed:
Jul. 05, 2005
Olli Järvinen, Espoo, FI;
Pekka Taskinen, Pori, FI;
Olli Hyvärinen, Pori, FI;
Henri Virtanen, Pori, FI;
Leo Lindroos, Pori, FI;
Olli Järvinen, Espoo, FI;
Pekka Taskinen, Pori, FI;
Olli Hyvärinen, Pori, FI;
Henri Virtanen, Pori, FI;
Leo Lindroos, Pori, FI;
Outotec Oyj, Espoo, FI;
Abstract
The method and furnace according to the invention enable a continuous processing of anode slime and are particularly suited to be connected to a process where anode slime is treated by hydrometallurgic methods after roasting. In the method according to the invention, the slime containing valuable metals and selenium is dried, roasted, sulfatized and cooled. The method includes steps to be carried out in succession, in continuous operation, so that the slime forms a slime layer on the conveyor and is conveyed to be treated in successive drying, roasting, sulfatizing and sulfuric acid removal and cooling units.