Production of ferronickel

C - Chemistry – Metallurgy – 22 – B

Patent

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Details

C22B 1/02 (2006.01) C21B 15/00 (2006.01) C22B 1/16 (2006.01) C22B 5/12 (2006.01) C22B 23/00 (2006.01)

Patent

CA 2597741

A process for producing a ferronickel product from a mixed nickel iron hydroxide product, said process including the steps of : a) providing a mixed nickel iron hydroxide product; b) pelletising the mixed nickel iron hydroxide product to produce nickel iron hydroxide pellets; c) calcining the nickel iron hydroxide pellets to produce mixed nickel iron oxide pellets; and d) reducing the nickel iron oxide pellets with one or more reducing gases at high temperatures to produce ferronickel pellets.

L'invention concerne un procédé de fabrication d'un produit en ferronickel à partir d'un produit mixte d'hydroxyde de fer et de nickel, ledit procédé consistant: a) à fournir un produit mixte d'hydroxyde de fer et de nickel; b) à pelletiser ledit produit mixte de façon à produire des granules d'hydroxyde de fer et de nickel; c) à calciner ces granules de façon à produire des granules mixtes d'oxyde de fer et de nickel; et d) à réduire ces granules d'oxyde de fer et de nickel au moyen d'un ou de plusieurs gaz réducteurs à de hautes températures afin de produire des granules en ferronickel.

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