Abstract: An apparatus and an arrangement for the (pyro)metallurgical treatment of electrical and/or electronic scrap or components, which are in particular configured in such a way that substantially uncontaminated electrical and/or electronic scrap or components thereof can be processed without impurities. The apparatus or the arrangement includes a melting reactor, which has a cooler. The present invention also relates to the use of the apparatus or the arrangement for the metallurgical treatment of electrical and/or electronic scrap or components and to the obtainment of raw copper or a precursor thereof, as well as to methods for the (pyro)metallurgical treatment of electrical and/or electronic scrap or components.

Abstract: The present invention relates to an apparatus and an arrangement for the (pyro)metallurgical treatment of electrical and/or electronic scrap or components, which are in particular configured in such a way that substantially uncontaminated electrical and/or electronic scrap or components thereof can be processed without impurities. The apparatus or the arrangement comprises a melting reactor, which has a cooling device. The present invention also relates to the use of the apparatus or the arrangement far the metallurgical treatment of electrical and/or electronic scrap or components and to the obtainment of raw copper or a precursor thereof. The present invention also relates to methods for the (pyro)metallurgical treatment of electrical and/or electronic scrap or components.

Abstract: In a method for cooling a metallurgical furnace having at least one cooling element which is flown through by a cooling mediums, a cooling medium that contains at least one ionic liquid, and preferably consists thereof, is carried through the cooling element, thereby preventing the problems that are associated with water cooling, such as the risk of hydrogen explosions and damage to the furnace lining.

Abstract: In a process for the operation of copper electrolysis cells including a plurality of anode and cathode plates arranged vertically and parallel to each other, a longitudinal electrolyte inflow and an electrolyte outflow, the electrolyte is injected via the electrolyte inflow horizontally and parallel to the electrodes in each electrode gap always at the height of the lower third of the electrodes at a speed of from 0.3 to 1.0 m/s, with the cathode plates being arranged stationarily relative to the inflow direction. As a result, an optimized flow guidance of the electrolyte with regard to the electrodes is achieved, resulting in an increase in the limiting current density.

Abstract: In a method for cooling a metallurgical furnace having at least one cooling element which is flown through by a cooling mediums, a cooling medium that contains at least one ionic liquid, and preferably consists thereof, is carried through the cooling element, thereby preventing the problems that are associated with water cooling, such as the risk of hydrogen explosions and damage to the furnace lining

Abstract: In a process for the operation of copper electrolysis cells including a plurality of anode and cathode plates arranged vertically and parallel to each other, a longitudinal electrolyte inflow and an electrolyte outflow, the electrolyte is injected via the electrolyte inflow horizontally and parallel to the electrodes in each electrode gap always at the height of the lower third of the electrodes at a speed of from 0.3 to 1.0 m/s, with the cathode plates being arranged stationarily relative to the inflow direction. As a result, an optimized flow guidance of the electrolyte with regard to the electrodes is achieved, resulting in an increase in the limiting current density.

Abstract: The invention relates to a method for the pyrometallurgical production of copper in a converter is provided. According to said method, gas is introduced into the respective molten charge during all steps thereof (charging the converter with cupriferous crude melt, treating the molten charge to obtain Cu2S and slag, removing the slag, converting Cu2S into Cu, emptying the converter).

Abstract: The invention concerns a gas carburizing method for production of fine-grained tungsten carbide (WC) powder in installations for fluidized bed reaction starting from free-flowing tungsten or tungsten oxide-containing powder with an average particle size d50>10 &mgr;m in a single process step with a specific process temperature and process gas mixture with a carbon activity <1 and as close as possible to 1. The method is suitable for particularly economical WC production on an industrial scale.