REN Jun Baotou Research Institute of Rare Earth Metals
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Ministry of Metallurgical Industry
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Baotou
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China engineer
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Baotou Research Institute of Rare Earth Metals
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Baotou 014010
,
China
金属学报(英文版)
The flotation behaviour and mechanism of bastnaesite with N-hydroxyl phthalicimide were investigated by ξ-potential measurement,infrared spectrum and quantum chemistry calculation.The results show that 3 oxygen atoms from N-hydroxyl phthalicirnide chelate the rare earth ions on the surface of bastnaesite to form double five-chain O=C-N-O- RE(Ⅲ)-O chelate which is chemically adsorbed on the surface of bastnasite,thus making N-hydroxyl phthalicimide an effective collector for bastnaesite.
关键词:
N-hydroxyl phthalicimide
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