Title: Flotation kinetics on upgraded rare earth bearing placer monazite, Bramhagiri coast, Odisha, India

Authors: Deependra Singh; Bighnaraj Mishra; Sunita Routry; Raghupatruni Bhima Rao

Addresses: AcSIR-Institute of Minerals and Materials Technology, Sachivalaya Marg, RRL Campus, Acharya Vihar, 751013, Bhubaneshwar, Odisha, India; Department of Atomic Energy, Indian Rare Earths Limited, Mumbai 400028, India ' Department of Atomic Energy, Indian Rare Earths Limited, Mumbai 400028, India ' C V Raman Global University, Bidyanagar, Mahura, Janla, Bhubaneswar 752054, India ' Department of Atomic Energy, Indian Rare Earths Limited, Mumbai 400028, India; Formerly: CSIR-Institute of Minerals and Materials Technology, Sachivalaya Marg, RRL Campus, Acharya Vihar, 751013, Bhubaneshwar, Odisha, India

Abstract: This paper presents about the flotation kinetics on upgraded rare earth bearing placer monazite, Bramhagiri coast, Odisha, India. The feed for the flotation kinetics is the product obtained from placer sand after gravity, high-tension and magnetic separation which contains 52.3% monazite. The final results of the study showed that flotation required 10 min to collect -200 μm size (52.3% monazite). The -100 + 75 μm size fraction (90.57% monazite) also takes ten minutes to collect, while the -200 + 180 μm size fraction (0.06% monazite) takes six minutes to collect. Therefore, monazite kinetic data from this study confirm that flotation time varies with the feed level of monazite and also depends on the feed size.

Keywords: Bramhagiri placer deposit; monazite; cerium; kinetics; collector; depressant; flotation; rare earths; Odisha, India.

DOI: 10.1504/IJMME.2023.137373

International Journal of Mining and Mineral Engineering, 2023 Vol.14 No.4, pp.380 - 396

Received: 01 Aug 2023
Accepted: 18 Dec 2023
Published online: 14 Mar 2024 *

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