Research on some major factors affecting Ni and Sc extractions in the sulphuric acid stirred leaching of limonite ore
- Authors: Quynh Nguyen Trinh *, Hung Trong Nguyen, Duy Ba Bui, Son Van Tran, Ai Thi Truong, Ha Hong Nguyen, Tuyet Anh Thi Do, Minh Duy Cao, Huy Quang Ngo, Huy Quang Chu, Ha Thu Thi Nguyen, Uyen Thuy Thi Bui
Affiliations:
Institute for Technology of Radioactive and Rare Elements of Vietnam Atomic Energy Institute
- *Corresponding:This email address is being protected from spambots. You need JavaScript enabled to view it.
- Received: 12th-Aug-2024
- Revised: 15th-Sept-2024
- Accepted: 10th-Oct-2024
- Online: 30th-Oct-2024
- Section: Mineral Beneficiation and Processing
Abstract:
Nickel and scandium were extracted from limonite ore under atmospheric pressure leaching conditions. The following variables were examined to understand their effects on nickel and scandium extraction: sulphuric acid concentration, leaching temperature, leaching time, liquid-to-solid ratio and particle size. After 4 h of leaching, ~70% Ni and ~80% Sc were obtained under the following conditions 4M H2SO4, 80°C, solid to liquid ratio = 1/10 (gr/ml) and laterite particles P80 = 63 μm at stirring speed = 500 rpm. The results indicated that although limonite ore contains low grade of Ni and Sc, under optimal leaching conditions, Ni and Sc could be obtained with high efficiency. Using sulfuric acid as a reagent is economical and it also limits the dissolution of impurity components into the solution.
1. Nguyễn Thị Lệ Huyền. (2014). Nghiên cứu đặc điểm quặng sắt limonit nguồn gốc phong hóa thấm đọng khu vực phía Tây tỉnh Nghệ An và định hướng thăm dò khai thác. Tạp chí Khoa học và Công nghệ, Trường ĐH Khoa học Huế, Tập 1, số 1, 83-94.
2. Nguyễn Thuấn Khanh, Trần Trung Tới, Phùng Tiến Thuật. (2021). Các nghiên cứu về quy trình xử lý quặng laterite – nikel trên thế giới và ở Việt Nam. Tạp chí Khoa học Mỏ - Địa chất, Vol. 62, No. 3b, 41-50.
3. Arroyo, J. C. (2001). USA Patent No. 6,261,527.
4. Canterford, J. H. (1975). Treatment of nickeliferous laterites. Minerals Science and Engineering, 7, 3-17.
5. Georgiou, D., and Papangelakis, V. G. (1998). Sulphuric acid pressure leaching of a limonitic laterite:chemistry and kinetics. Hydrometallurgy, 49(1–2), 23-46. doi:10.1016/S0304-386X (98)00023-1
6. Addai-Mensah, J., Nosrati, A. (2014). Atmospheric acid leaching of siliceous goethitic Ni laterite ore: Effect of solid loading and temperature. Minerals Engineering 69, 154-164.
7. McDonald, R. G. Whittington, B. I. (2008). Atmospheric acid leaching of nickel laterites review: part I.sulphuric acid technologies. Hydrometallurgy, 91(1–4), 35-55.
8. Panda, S. C., Sukla, L. B., and Jena, P. K. (1980). Extraction of nickel through reduction roasting and ammoniacal leaching of lateritic nickel ores. Transactions Indian Institute of Metals, 33, 161-165.
9. Rubisov, D. H., Papangelakis, V. G. (2000). Sulphuric acid pressure leaching of laterites – speciation and prediction of metal solubilities at temperature. Hydrometallurgy, 58, 13-26.
10.Srecko S., Bernd F., Reinhard F. (2003). Sulphuric acid leaching of the Serbian nickel lateritic ore. World of Metallurgy - ERZMETALL, 198-203.
11.Valix, M., Cheung, W. H. (2002). Effect of sulfur on the mineral phases of laterite ores at high temperature reduction
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