Study on surface magnetization recover ilmenite from titanaugite using surfactant sodium oleate |
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Authors: | Zhitao Yuan Qingyou Meng Yunhai Zhang Lixia Li |
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Affiliation: | 1. School of Resources and Civil Engineering, Northeastern University , Shenyang, Liaoning, PR China;2. BGRIMM Technology Group , Beijing, PR China |
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Abstract: | ABSTRACT Separation of ilmenite from titanaugite was investigated by magnetic coating. By enlarging magnetic difference between ilmenite and titanaugite, ilmenite was efficiently recovered. Scanning electron microscope and vibrating sample magnetometer results indicated that magnetite selectively coated onto ilmenite surface and increased its magnetism, which resulted in different magnetic separation behavior between ilmenite and titanaugite. FTIR and contact angle measurements confirmed that the adsorption difference of sodium oleate resulted in a stronger hydrophobicity on magnetite and ilmenite than titanaugite. Interaction energy analysis illustrated that hydrophobic association interaction on ilmenite was stronger than that on titanaugite, and which led to the selective coating of magnetite onto ilmenite. |
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Keywords: | Magnetite selective coating magnetic separation magnetite ilmenite titanaugite |
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