Study on the Collection Properties of Lanthanide Metal-Benzohydroxamic Acid Organic Complexes for Fluorite and Calcite

LI Yingying; ZHANG Zhixiang; LEI Shimei; CHENG Yuhe; HUANG Haiwei; XU Shitong; WANG Baiqing; ZHANG Feng

doi:10.13779/j.cnki.issn1001-0076.2022.03.018

2022 Vol. 42, No. 3

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Article navigation > Conservation and Utilization of Mineral Resources > 2022 > 42(3): 135-141

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LI Yingying, ZHANG Zhixiang, LEI Shimei, CHENG Yuhe, HUANG Haiwei, XU Shitong, WANG Baiqing, ZHANG Feng. Study on the Collection Properties of Lanthanide Metal-Benzohydroxamic Acid Organic Complexes for Fluorite and Calcite[J]. Conservation and Utilization of Mineral Resources, 2022, 42(3): 135-141. doi: 10.13779/j.cnki.issn1001-0076.2022.03.018

Citation:

LI Yingying, ZHANG Zhixiang, LEI Shimei, CHENG Yuhe, HUANG Haiwei, XU Shitong, WANG Baiqing, ZHANG Feng. Study on the Collection Properties of Lanthanide Metal-Benzohydroxamic Acid Organic Complexes for Fluorite and Calcite[J]. Conservation and Utilization of Mineral Resources, 2022, 42(3): 135-141. doi: 10.13779/j.cnki.issn1001-0076.2022.03.018

Study on the Collection Properties of Lanthanide Metal-Benzohydroxamic Acid Organic Complexes for Fluorite and Calcite

School of Resource and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China

Received Date: 17 April 2022

Publish Date: 25 June 2022

Abstract

Abstract

The adsorption sites on the surface of calcium-bearing minerals are both calcium particles, which leads to poor selectivity of common oxidized ore collectors such as fatty acids and hydroxamic acids. In order to solve this problem, an idea of using the difference of anions of calcium-containing minerals to design metal ion complex collectors is proposed. Through a rough flotation test on the artificial mixed ore of fluorite and calcite with Ce-BHA complex, the final fluorite concentrate product was obtained with a grade of 78.92% and a recovery 74.77% of CaF₂ while a grade of 11.08% and a recovery 24.23% of CaCO₃. Compared with using BHA as collector alone, the grade of CaF₂ of flotation concentrate was increased by about 26%, and the recovery was increased by nearly 50%, indicating that the complex collector has good selectivity for fluorite. The interaction of lanthanide metal ions with benzohydroxamic acid (BHA) and their adsorption behavior on the surface of fluorite and calcite were calculated by quantum chemistry. The results showed that the best collector combination of lanthanide metal ions was Ce-BHA, which was consistent with the results of pure mineral flotation test.
- lanthanide metal complex /
- collector /
- quantum chemical calculation /
- fluorite /
- calcite /
- adsorption /
- flotation /
- benzohydroxamic acid

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References

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