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Optimizing rare earth element beneficiation using response surface methodology and Knelson concentrator
Date
2024-01-01
Author
Li, Lixia
Zhou, Mingliang
Liu, Feifei
Liu, Zhe
Altun, Naci Emre
Yuan, Zhitao
Liu, Jiongtian
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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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The beneficiation of rare earth elements is a crucial process in unlocking the potential of these valuable resources. This study investigates the utilization of response surface methodology in optimizing rare earth beneficiation using a laboratory Knelson concentrator. The experimental design employed response surface methodology to analyze and predict the effects of various parameters, such as feed rate, water pressure, and particle size, on the efficiency of rare earth recovery. Through systematic experimentation and statistical analysis, this research establishes optimal conditions for the Knelson concentrator operation, enhancing the recovery of rare earth elements. The study presents a comprehensive analysis of the impact of individual factors and their interactions on the beneficiation process. The results showed that for −0.5 + 0.074 mm fraction the main influencing factors were in the order of relative centrifugal force > fluidization water flow rate > feeding rate, and the factors acting on −0.074 + 0.02 mm fraction were fluidization water flow rate > relative centrifugal force > feeding rate. The beneficiation performance by Knelson concentrator for −0.074 + 0.02 mm fraction was better than that of −0.5 + 0.074 mm fraction. The findings demonstrate the efficacy of response surface methodology as a tool for optimizing the Knelson concentrator’s performance in rare earth beneficiation. This approach offers insights into process optimization and provides a framework for improving the efficiency of rare earth recovery methods, contributing to the sustainable utilization of these critical elements in various industrial applications.
Subject Keywords
centrifugal gravity separation
,
Knelson concentrator
,
rare earth
,
response surface methodology
URI
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85201067729&origin=inward
https://hdl.handle.net/11511/110696
Journal
Separation Science and Technology (Philadelphia)
DOI
https://doi.org/10.1080/01496395.2024.2387286
Collections
Department of Mining Engineering, Article
Citation Formats
IEEE
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BibTeX
L. Li et al., “Optimizing rare earth element beneficiation using response surface methodology and Knelson concentrator,”
Separation Science and Technology (Philadelphia)
, pp. 0–0, 2024, Accessed: 00, 2024. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85201067729&origin=inward.