Method to separate metallic phases from other phases containing same and device to carry out the method

A centrifuge device for disposing or recycling separation of a metallic phase from at least one phase mixture containing same from slags, salt slags, dross, residues and wastes which occur during the thermal metal extraction, production, processing, treatment and recycling, while the phase mixture for the purpose of de-metallization is subjected by rotation to a radial acceleration within a centrifuge device including a centrifuge mold, within a temperature range which is above one of the melting temperature or the melting range of the metallic phase, wherein said metallic phase is one of aluminum and an aluminum alloy, the centrifuge device disposing or recycling separation of the metallic phase by feeding the phase mixture, in a batch operation, into the centrifuge mold at one of a temperature within the mentioned temperature range and after having been fed into the centrifuge mold and bringing the phase mixture to the temperature mentioned, subjecting the phase mixture, in a first process phase, while maintaining the temperature within the mentioned range, to radial acceleration for a specified time until a required degree of de-metallization is achieved;

• by maintaining the radial acceleration by means of rotation, in a second phase of the process, at least the metallic phase, separated and removed from the phase mixture and arranged on an outside periphery of the centrifuge mold is brought to one of solidification and setting by lowering the temperature thereof, and removing the metallic phase when reaching the handling temperature as at least one body whose outer surface corresponds essentially to the shape of the inside of the centrifuge mold and whose inside has a paraboloidal or cylindrical surface,
• said centrifuge device comprising:
• at least one, if necessary exchangeable, centrifuge mold including a centrifuge mold drum having a variable cross section and a discharge side;
• a housing for rotatably supporting the centrifuge mold drum;
• controllable drive means for rotating the centrifuge mold drum at any desired rotational speed one of a conventional and inductive heating device for heating the centrifuge mold drum, the centrifuge mold drum having a cross-section at a right angle to the axis of rotation of the centrifuge mold drum symmetrical about one or several axes or is circular, the centrifuge mold drum having an inner space into which the phase mixture can be fed, while the surface of the cross-section of the centrifuge mold drum increases or widens towards the discharge side thereof.

A method for using a centrifuge device,

• said centrifuge device including at least one, if necessary exchangeable, centrifuge mold including a centrifuge mold drum having a variable cross section and a discharge side, a housing for rotatably supporting the centrifuge mold drum, controllable drive means for rotating the centrifuge mold drum at any desired rotational speed one of a conventional and inductive heating device for heating the centrifuge mold drum;
• the centrifuge mold drum having a cross-section at a right angle to the axis of rotation of the centrifuge mold drum symmetrical about one or several axes or is circular, the centrifuge mold drum having an inner space into which the phase mixture can be fed while the surface of the cross-section of the centrifuge mold drum increases or widens towards the discharge side thereof,
• said method for using said centrifuge device being for one of disposing and recycling separation of a metallic phase, wherein said metallic phase is one of aluminum and an aluminum alloy, from at least one phase mixture containing same from slags, salt slags, dross, residues and wastes which occur during the thermal metal extraction, production, processing, treatment and recycling, under the conditions of feeding the phase mixture into a centrifuge mold at a temperature within a temperature range which is above one of the melting temperature of the metallic phase and after having been fed into the centrifuge mold and bringing the phase mixture to the temperature, said method for using the centrifuge device comprising:
• subjecting the phase mixture, in a first process phase, while maintaining the temperature within the temperature range, to radial acceleration for a specified time until a required degree of de-metallization is achieved;
• maintaining the radial acceleration by means of rotation, in a second phase of the process, wherein at least the metallic phase, separated and removed from the phase mixture and arranged on an outside periphery of the centrifuge mold, is brought to one of solidification and setting to form a metallic phase body by lowering the temperature thereof;
• and
• removing the metallic phase body when reaching the handling temperature, the metallic phase body having an outer surface which corresponds essentially to the shape of the inside of the centrifuge mold and an inside surface of a paraboloidal or cylindrical shape.