Method and apparatus for recycling of scrap metal

C - Chemistry – Metallurgy – 22 – B

Patent

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C22B 7/00 (2006.01) C22B 3/02 (2006.01) C22B 15/00 (2006.01)

Patent

CA 2204060

A process for the recycling of scrap metal, such as copper wire, comprises the steps of combining the scrap metal with a concentrate of a metal similar to the scrap metal in a pressure vessel (10) and subjecting the metal concentrate to pressure oxidation along with the scrap metal. In one example the scrap metal comprises copper wire and the metal concentrate comprises a copper matte. An apparatus (16) for feeding the scrap metal to the autoclave (10), without interrupting the operation of the autoclave (10) is also provided.

L'invention concerne un procédé de recyclage de métaux de rebut, comme des fils de cuivre. Le procédé consiste à combiner le métal de rebut à un concentré de métal similaire dans un récipient sous pression (10) et à soumettre le mélange à une oxydation sous pression. Dans une variante de l'invention, le métal de rebut est constitué de fils de cuivre et le concentré de matte de cuivre. L'invention vise également un appareil (16) servant à alimenter en métal de rebut l'autoclave (10) sans en interrompre le fonctionnement.

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