Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
金属もしくは金属の化合物を含有するスラグから1種もしくは数種の金属を連続的もしくは不連続的に回収するための方法
Document Type and Number:
Japanese Patent JP5128494
Kind Code:
B2
Abstract:
The invention concerns a method for the continuous or discontinuous extraction of a metal or several metals from a slag that contains the metal or a compound of the metal, in which the liquefied metal-containing slag is heated in a primary or secondary smelting unit (1). To provide an improved method for extracting metals, especially copper, from slags, the invention provides that the metal-containing slag is heated in a primary or secondary smelting unit (1) designed as an alternating-current electric furnace, and the molten material is then fed from the primary or secondary smelting unit (1) into a furnace (2) designed as a direct-current electric furnace, in which the metal to be extracted is subjected to an electrolytic separation, where a reducing agent in the form of calcium silicide (CaSi), calcium carbide (CaC2), ferrosilicon (FeO), aluminum (Al), and/or reducing gases is added and/or injected into the primary or secondary smelting unit (1).

Inventors:
Degel Rolf
Krunze Jürgen
Application Number:
JP2008549003A
Publication Date:
January 23, 2013
Filing Date:
October 25, 2007
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SMS G Mark Actien Gezel Shaft
International Classes:
C22B7/04; C22B5/04; C22B5/06; C22B5/10; C22B5/12; C22B11/02; C22B13/02; C22B15/00; C22B19/30; C22B23/02; C22B34/32; C25C7/06; F27D99/00
Domestic Patent References:
JP54101702A
JP60208489A
JP2002317230A
JP2002180141A
Attorney, Agent or Firm:
Mitsufumi Esaki
Blacksmith



 
Previous Patent: JPS5128493

Next Patent: JPS5128495