Sms Group Gmbh

Sms Siemag Aktiengesellschaft

Universidad De Chile

Empresa Nacional De Mineria

Andrzej Warczok

Gabriel Angel Riveros Urzua

Jürgen Kunze

Rolf Degel

Dieter Borgwardt

Tanai Marin Alvarado

Marco Antonio Caceres Rivera

Roberto Marcelo Parada Araya

Ricardo Ponce Herrera

Daniel Smith Cruzat

Torstein Arfin Utigard

Juergen Kunze

The invention is directed to a process for extracting a metal from a slag containing said metal, wherein the liquefied metal-containing slag is heated in at least one electric arc furnace (). In order provide an improved method for recovering especially copper from slags, the invention provides that the metal-containing slag is heated in a first furnace () constructed as an AC electric furnace or a DC electric furnace, and the melt is introduced from the first furnace () into a second furnace () which is constructed as a DC electric furnace. Further, the invention is directed to an arrangement for extracting a metal from a slag containing said metal.

Process and arrangement for extracting a metal from slag a containing said metal

This invention refers to a pyrometallurgical method for the continuous reduction of oxidized copper through combustion gases in countercurrent to the continuous gravitational flow of liquid copper that disperses through a packed bed reactor with ceramic grains.

Continuous fire reduction of liquid copper

The invention relates to a method for reducing and/or refining a metal-containing slag. The aim of the invention is to improve reduction of the slag. For this purpose, calcium carbide (CaC) is added to the slag as the reducing agent.

Method for reducing and/or refining a metal-containing slag

Growing community of inventors

Etobikoke, Canada

Andrzej Warczok