Abstract
Most iron reserves are low in grade with quartz as the main gangue mineral, and anionic reverse flotation has become the most crucial separation method in the processing plants of iron ore. Thus, a flotation feed sample that is a mixture of low-intensity and high-gradient magnetic separators concentrates was acquired from a processing plant. The sample characterizations with X-ray diffraction (XRD), X-ray fluorescence (XRF), laser particle size analyzer, and mineral liberation analysis (MLA) confirmed that the sample consists of iron oxide as a valuable mineral and quartz as a gangue mineral with adequate liberation degree. In the anionic reverse flotation, the interaction of the flotation reagents with the constituents of the feed makes the flotation a complex system. Thus, the selection and optimization of regent dosages were performed using a uniform experimental design to estimate the optimum separation efficiency. The optimum reagent system was 1.6 kg/Mg starch depressant, 1.0 kg/Mg calcium oxide (lime) activator, and 0.8 kg/Mg TD-II anionic collector. At the optimum, 68.90% iron grade with 92.62% recovery was produced.
Recommended Citation
Y. Hou and A. Sobhy, "Application of Uniform Test Design in Optimizing the Flotation Reagents of Iron Anionic Reverse Flotation Circuit," Physicochemical Problems of Mineral Processing, vol. 58, no. 1, pp. 37 - 49, Wroclaw University of Science and Technology, Jan 2022.
The definitive version is available at https://doi.org/10.37190/PPMP/143889
Department(s)
Mining Engineering
Keywords and Phrases
flotation reagents; iron oxide; optimization; quartz; reverse flotation; uniform test design
International Standard Serial Number (ISSN)
1643-1049
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Wroclaw University of Science and Technology, All rights reserved.
Publication Date
01 Jan 2022
Comments
Natural Science Foundation of Liaoning Province, Grant 11040