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BEHAVIOUR OF α-NITROSO-β-NAPHTHOL IN HEMATITE FLOTATION

WANG Wenmei Baotou Research Institute of Rare Earth , Ministry of Metallurgy Industry , Baotou , ChinaYU Yongfu CHEN Quanyuan Changsha Institute of Mining and Metallurgy , Ministry of Metallurgy Industry , Changsha , China engineer , Baotou Research Institute of Rare Earth , Ministry of Metallurgical Industry , Baotou 014010 , China

金属学报(英文版)

Based on theoretical calculation of electronegativity of groups of flotation reagent and method of infrared adsorption spectroscopy,the collection and adsorption of α-nitroso-β- naphthol in hematite flotation have been studied.The chemical adsorption seems to be predominant owing to formation of pentacyclic nitrosyl chelate compound by atoms of nitrosyl bond in α-nitroso-β-naphthol together with Fe(Ⅲ)on hematite surface.Mean- while,the nonuniform multilayer physical adsorption is also occurred.

关键词: α-nitroso-β-naphthol , null , null , null , null

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