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ARTICLE J. Cent. South Univ. (2019) 26: 458-466 DOI: https://doi.org/10.1007/s11771-019-4018-6 Recovery of iron and rare earth elements from red mud through an acid leaching-stepwise extraction... resources from red mud. Key words: red mud; iron; rare earth elements; leaching; solvent extraction Cite this article as: ZHANG Xue-kai, ZHOU Kang-gen, CHEN Wei, LEI Qing-yuan, HUANG Ying, PENG Chang- hong......
extraction factor for minimum production cost in counter current extraction[J]. The Chinese Journal of Nonferrous Metals, 2001, 11(6): 1131-1135. [14]钟盛华. 串级萃取最优化理论和精确计算优化萃取比新方程[J]. 应用化学, 2001, 18(10): 821-824. ZHONG Sheng-hua. Optimization theory on counter-current extraction, and a precise calculation equation for optimized extraction factor[J]. Chinese Journal of Applied Chemistry, 2001, 18(10......
Integrated Automation System for Rare Earth Countercurrent Extraction Process 杨辉1,柴天佑1 (1.Research Center of Automation, Northeastern University, Shenyang 110004, China;2.School of Electronics and Electrical Engineering, East China Jiaotong University, Nanchang 330013,China) Abstract:Lower automation level in industrial rare-earth extraction processes results in high production cost......
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for the industrial cascades. In addition, we have developed a new multi-input and multi-output countercurrent extraction process for separating multi-component rare earth mixture with lower chemical cost...Research and Application Progress in Countercurrent Solvent Extraction 严纯华1,廖春生2,吴声2,贾江涛2 (1.Beijing Institute of Founder Rare Earth Sci & Tech.Co.,Ltd.,Beijing,100871,China;2.State Key Lab of Rare......
was proposed and proved in lab-scale experiment. Key words: scandium; HEHEHP; solvent extraction; ion-adsorption rare earth Cite this article as: ZHANG Wei, ZHU Hao, LIU Shu-feng, NING Shun-yan, WEI Yue... is often neglected in the extraction and separation process of other REEs. It will cause a waste of resources and decrease the purities of other rare earth products if Sc is not completely removed......
ester catechins mixtures from tea, such as column chromatography[10], high-speed counter current chromatography[11], high performance liquid chromatography[12], but due to low efficiency and high cost... that the macrocyclic size of calixarenes is the one factor that results in their exceptional performance to extract compounds. The hydrogen bonding also plays an important role in the extraction performance......
: open-pit mine; long-term production scheduling; grade uncertainty; augmented Lagrangian relaxation; particle swarm optimization algorithm; bat algorithm Cite this article as: Kamyar TOLOUEI, Ehsan...-term production scheduling (LTPS) optimization process. LTPS is especially important in mining projects, because in addition to determining the actual value of the project, medium-term and short-term......
Automation System in Rare Earths Countercurrent Extraction Processes 廖春生1,严纯华1,王明文1,吴声1,李标国1,贾江涛1 (1.State Key Laboratory of Rare Earth Materials Chemistry and Applications, Beijing Institute of Founder Rare Earth Science and Technology, Peking University,) Abstract:Based on the countercurrent extraction theory for optimized designing and simulating, the rare earth separation processes......