Experimental Study on Flotation Separation of Ilmenite and Pyroxene and Action Mechanism of Depressants

GAO Hulin; LIU Jian; LUO Deqiang; DONG Wenchao; YU Yunlong; HAO Jiamei; QIN Xiaoyan

doi:10.13779/j.cnki.issn1001-0076.2022.01.009

2022 Vol. 42, No. 1

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Article navigation > Conservation and Utilization of Mineral Resources > 2022 > 42(1): 61-67

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GAO Hulin, LIU Jian, LUO Deqiang, DONG Wenchao, YU Yunlong, HAO Jiamei, QIN Xiaoyan. Experimental Study on Flotation Separation of Ilmenite and Pyroxene and Action Mechanism of Depressants[J]. Conservation and Utilization of Mineral Resources, 2022, 42(1): 61-67. doi: 10.13779/j.cnki.issn1001-0076.2022.01.009

Citation:

GAO Hulin, LIU Jian, LUO Deqiang, DONG Wenchao, YU Yunlong, HAO Jiamei, QIN Xiaoyan. Experimental Study on Flotation Separation of Ilmenite and Pyroxene and Action Mechanism of Depressants[J]. Conservation and Utilization of Mineral Resources, 2022, 42(1): 61-67. doi: 10.13779/j.cnki.issn1001-0076.2022.01.009

Experimental Study on Flotation Separation of Ilmenite and Pyroxene and Action Mechanism of Depressants

1.
Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming 650093, China
2.
Pangang Group Mining Company Design Research Institute, Panzhihua 617063, China

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Corresponding author: LIU Jian, vacation2008@126.com

Received Date: 23 December 2021

Publish Date: 25 February 2022

Abstract

Abstract

Using MOH as collector, sodium silicate, oxalic acid and LD-C (carboxymethyl cellulose) as depressants, single mineral flotation of ilmenite and pyroxene was carried out. In addition, the interaction mechanism of LD-C with ilmenite and pyroxene was studied by solution chemistry of flotation, zeta potential test and infrared spectroscopic test. The test results show that the selective depression effect of LD-C on pyroxene was significantly better than that of sodium silicate and oxalic acid. Under weak acidic conditions, and the dosage of collector MOH was 160 mg/L, depressant LD-C was 2 mg/L, the recovery of ilmenite can reach 80% and that of pyroxene was 9%. The interaction of LD-C on pyroxene can hinder the subsequent adsorption of MOH while that on ilmenite has little effect on the adsorption of MOH. This due to the fact that the active sites of Ca and Mg exposed on the pyroxene surface during flotation can make LD-C adsorb on pyroxene strongly, which hindering the adsorption of collector.
- ilmenite /
- pyroxene /
- flotation separation /
- depressants

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References

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