Sms Siemag Aktiengesellschaft

Mannesmann Aktiengesellschaft

Sms Group Gmbh

Behr Gmbh Co. Kg

Behr Thermot-tronik Gmbh

Mahle Behr Kornwestheim Gmbh

Jürgen Kunze

Axel Weyer

Eike Willers

Jens Ruckwied

Andreas Auweder

Peter Starke

Hans-Peter Klein

Rolf Degel

Rolf Best

Gabriel Angel Riveros Urzua

Andrzej Warczok

Immanuel Buschatz

Dieter Borgwardt

Guido Kleinschmidt

Karl-Heinz Kummer

Alexander Bergs

Klaus Schmale

Waldemar Friesenhahn

Horst-Dieter Borgwardt

Harmen Johannes Oterdoom

Hartmut Schmieden

Walter Weischedel

Thomas Henkel

Roberto Marcelo Parada Araya

Marco Antonio Caceres Rivera

Roland König

Martin Stiegler

Jan Bader

Detlef Strieder

Patrick Henke

Roland KÖNIG

Hans-Erich Lembgen

Karin Mößner

Andrew Warczok

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

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 (). 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 () designed as an alternating-current electric furnace, and the molten material is then fed from the primary or secondary smelting unit () into a furnace () 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 (CaC), ferrosilicon (FeO), aluminum (Al), and/or reducing gases is added and/or injected into the primary or secondary smelting unit ().

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

The invention relates to a tapping channel () for a metallurgical furnace, particularly for an electro-reducing furnace, comprised of at least one tapping brick () and of a cooling device in the vicinity of the tapping channel (). The cooling device is provided in the form of a sleeve (), which indirectly cools a tapping brick () and which at least partially surrounds the furnace wall () in the vicinity thereof.

Tapping channel for a metallurgical furnace

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

Process and device for regulating the position of the tip of an electric

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Xanten, Germany

Jürgen Kunze