EP 1917369 A1 20080507 - METHOD FOR SEPARATING IMPURITIES OUT OF FEED STOCK IN COPPER MELTS
Title (en)
METHOD FOR SEPARATING IMPURITIES OUT OF FEED STOCK IN COPPER MELTS
Title (de)
VERFAHREN ZUM ABTRENNEN VON VERUNREINIGUNGEN AUS EINSATZSTOFFEN IN KUPFERSCHMELZEN
Title (fr)
PROCEDE POUR EXTRAIRE DES IMPURETES DE MATIERES PREMIERES DANS DES MASSES DE CUIVRE EN FUSION
Publication
Application
Priority
- AT 2006000343 W 20060817
- AT 14332005 A 20050901
Abstract (en)
[origin: WO2007025317A1] The invention relates to a method for separating impurities out of slags, dusts, minerals, preparation residues of minerals or of recyclings or remaining substances, subsequently called feed stock. In order to save energy and reduce costs, the inventive method is characterized by the combination of the following features: melting the feed stock containing the impurities; forming a copper melt; bring the feed stock into contact with the copper melt while adding reducing agents, preferably coke and/or coal; vaporizing, if required, existing volatile compounds such as metal chlorides; reducing metals of the feed stock more noble than copper in the copper melt, and; forming a slag with constituents of the feed stock to be purified that is less noble than copper.
IPC 8 full level
C22B 7/02 (2006.01); C22B 15/00 (2006.01)
CPC (source: EP US)
C22B 5/10 (2013.01 - EP US); C22B 5/16 (2013.01 - EP US); C22B 15/0054 (2013.01 - EP US); C22B 15/006 (2013.01 - EP US); Y02P 10/20 (2015.11 - EP US)
Citation (search report)
See references of WO 2007025317A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2007025317 A1 20070308; AT 502396 A4 20070315; AT 502396 B1 20070315; AU 2006287095 A1 20070308; CN 101258252 A 20080903; EP 1917369 A1 20080507; RU 2008110996 A 20091010; US 2009217785 A1 20090903
DOCDB simple family (application)
AT 2006000343 W 20060817; AT 14332005 A 20050901; AU 2006287095 A 20060817; CN 200680032284 A 20060817; EP 06774744 A 20060817; RU 2008110996 A 20060817; US 6535406 A 20060817