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METHOD FOR CONTINUOUSLY OR DISCONTINUOUSLY OBTAINING ONE METAL OR MULTIPLE METALS FROM A SLAG CONTAINING THE METAL OR A COMPOUND OF THE METAL
METHOD FOR CONTINUOUSLY OR DISCONTINUOUSLY OBTAINING ONE METAL OR MULTIPLE METALS FROM A SLAG CONTAINING THE METAL OR A COMPOUND OF THE METAL
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机译：从包含金属或金属化合物的渣块中连续或不连续地获得一种或多种金属的方法
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摘要
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 (1). 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 (1) designed as an alternating-current electric furnace, and the molten material is then fed from the primary or secondary smelting unit (1) into a furnace (2) 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 (CaC2), ferrosilicon (FeO), aluminum (Al), and/or reducing gases is added and/or injected into the primary or secondary smelting unit (1).
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