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PURIFICATION AGENT FOR NICKEL-CONTAINING AQUEOUS SOLUTION AND PURIFICATION METHOD FOR NICKEL-CONTAINING AQUEOUS SOLUTION
PURIFICATION AGENT FOR NICKEL-CONTAINING AQUEOUS SOLUTION AND PURIFICATION METHOD FOR NICKEL-CONTAINING AQUEOUS SOLUTION
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机译:含镍水溶液的纯化剂和含镍水溶液的纯化方法
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摘要
To provide a purification method for a nickel-containing aqueous solution that reduces the nickel concentration of an aqueous solution containing nickel, and a compound having an ability to form a complex with nickel.SOLUTION: Inorganic sulfide, a polyamine having 3 to 8 nitrogen atoms, and an alkaline earth metal compound are added to an aqueous solution containing nickel and a compound having an ability to form a complex with nickel; and then, an inorganic flocculant is added thereto, the content of the inorganic flocculant is equal to or higher than the content of the compound having an ability to form a complex with nickel; after that, solid matter is removed therefrom.SELECTED DRAWING: None
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