Process for manufacturing prefluxed metal oxide from metal...

C - Chemistry – Metallurgy – 01 – G

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C01G 53/04 (2006.01) C01B 13/18 (2006.01) C01G 51/04 (2006.01) C22B 1/16 (2006.01) C22B 9/10 (2006.01) C22B 23/00 (2006.01)

Patent

CA 2714575

A method for producing prefluxed metal oxide from a metal salt selected from nickel hydroxide, cobalt hydroxide, mixed nickel-cobalt hydroxide, nickel carbonate, cobalt carbonate, mixed nickel-cobalt carbonate and combinations thereof includes providing a mixture of at least one slag making oxide and a metal salt selected from the group consisting of nickel hydroxide, cobalt hydroxide, mixed nickel-cobalt hydroxide, nickel carbonate, cobalt carbonate, mixed nickel-cobalt carbonate and combinations thereof, blending with a binder, blending in a flux additive to form a slag-making mixture, forming the slag-making mixture into prefluxed agglomerates, and calcining the prefluxed agglomerates to produce a prefluxed metal oxide. An agglomerate is provided which includes a metal salt selected from nickel hydroxide, cobalt hydroxide, mixed nickel-cobalt hydroxide, nickel carbonate, cobalt carbonate, mixed nickel-cobalt carbonate and combinations thereof, a slag making oxide, and a flux additive. An agglomerate is provide which includes a metal oxide selected from nickel oxide and cobalt oxide, and slag, wherein the metal oxide is encapsulated in the slag.

L'invention porte sur un procédé de fabrication d'un oxyde métallique pré-fluxé à partir d'un sel métallique choisi parmi l'hydroxyde de nickel, l'hydroxyde de cobalt, l'hydroxyde mixte de nickel-cobalt, le carbonate de nickel, le carbonate de cobalt, le carbonate mixte de nickel-cobalt et leurs combinaisons. Ce procédé comprend les opérations consistant à se procurer un mélange d'au moins un oxyde formant un laitier et d'un sel métallique choisi dans le groupe constitué par l'hydroxyde de nickel, l'hydroxyde de cobalt, l'hydroxyde mixte de nickel-cobalt, le carbonate de nickel, le carbonate de cobalt, le carbonate mixte de nickel-cobalt et leurs combinaisons, à mélanger avec un liant, à incorporer par mélange à un additif de fondant pour former un mélange formant un laitier, à transformer le mélange formant un laitier en agglomérats pré-fluxés et à calciner les agglomérats pré-fluxés pour produire un oxyde métallique pré-fluxé. L'invention porte sur un agglomérat, lequel comprend un sel métallique choisi parmi l'hydroxyde de nickel, l'hydroxyde de cobalt, l'hydroxyde mixte de nickel-cobalt, le carbonate de nickel, le carbonate de cobalt, le carbonate mixte de nickel-cobalt et leurs combinaisons, un oxyde formant un laitier et un additif de fondant. L'invention porte sur un agglomérat, lequel comprend un oxyde métallique, choisi parmi l'oxyde de nickel et l'oxyde de cobalt, et un laitier, l'oxyde métallique étant encapsulé dans le laitier.

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