Effects of Borax and Grinding Alkalinity on the Reduction–Magnetic Separation of Beach Placer

Author:

Hu Bing1,Hu Peiwei23,Gao Runqin2,Hu Chao24,Zheng Fuqiang1

Affiliation:

1. National Engineering Research Center of Sintering and Pelletizing Equipment System, Zhongye Changtian International Engineering Co., Ltd., Changsha 410205, China

2. College of Resources and Environment Engineering, Wuhan University of Science and Technology, Wuhan 430081, China

3. Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan University of Science and Technology, Wuhan 430081, China

4. Suzhou Sinoma Design & Research Institute of Non-Metallic Minerals Industry Co., Ltd., Suzhou 215151, China

Abstract

The effect of borax on the reduction characteristics of Indonesia beach placers was investigated. The effect of grinding alkalinity on the magnetic separation of the reduced sample was also studied in this paper. The mineral phase transformation, microstructures of reduction, and magnetic separation products were analyzed to reveal the enhanced separation mechanism of titanium and iron in beach placer. The borax could effectively improve the metallization rate and the growth of iron grains in a reduced sample. When 3% borax was added to the reduction process, the metallization rate of the reduced beach placer reached 95.64%, and the metal iron grains grew to about 50 μm. Adjusting the grinding alkalinity could prevent the metallic iron from being oxidized and promote the monomer dissociation between mineral particles. The iron powder concentrates with 94.07% total Fe and vanadium-rich titanium slag with 36.32% Ti were obtained by grinding magnetic separation as the grinding alkalinity pH was 13.

Funder

Hunan Provincial Natural Science Foundation of China

Publisher

MDPI AG

Subject

General Materials Science,Metals and Alloys

Reference31 articles.

1. Using titanomagnetite textures to elucidate volcanic eruption histories;Turner;Geology,2008

2. Study on reasonable mineral processing flowsheet of a beach placer in Indonesia;Hu;Min. Metall. Eng.,2009

3. Recovering titanium and iron by co-reduction roasting of seaside titanomagnetite and blast furnace dust;Hu;Int. J. Miner. Process.,2017

4. Provenance of titanomagnetite in ironsands on the west coast of the North Island, New Zealand;Brathwaite;J. Geochem. Explor.,2017

5. Oxidation behaviour and phase characterization of titaniferous magnetite ore of eastern India;Samanta;Trans. Nonferr. Met. Soc. China,2014

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