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characteristics of rare earth ore during different leaching time, with the aid of self-made simulated leaching device, the direct shear test was carried out on the ore samples after different leaching time, and the effect of leaching solution on the strength of ore body was discussed, and the mechanism of influence of leaching time on cohesive force and internal friction angle was revealed. The results show......
were discussed. 90% of fluorine mainly existed as HF/F- in leaching solution, which can provide theoretical guidance for further removal or recovery of F. Key words: lepidolite; lithium extraction... of F (Frent,l) in the leaching solution was also introduced. Elemental analysis along with some characterization such as XRD (X-ray diffraction), FTIR (Fourier-transform infrared spectroscopy) and NMR......
J. Cent. South Univ. (2019) 26: 1374-1384 DOI: https://doi.org/10.1007/s11771-019-4093-8 Fixed-bed column study for deep removal of copper (II) from simulated cobalt electrolyte using polystyrene... of Springer Nature 2019 Abstract: This study presents the deep removal of copper (II) from the simulated cobalt electrolyte using fabricated polystyrene-supported 2-aminomethylpyridine chelating resin (PS-AMP......
Leaching hydrodynamics of weathered elution-deposited rare earth ore with ammonium salts solution何正艳1,张臻悦2,池汝安2,徐志高1,余军霞2,吴明1,白如钰11. Key Laboratory of Catalysis and Materials Science of the State... of Technology摘 要:In order to reveal the permeability rule of leaching agent solution and the effects of anions in the leaching process of weathered crust elution......
Leaching hydrodynamics of weathered elution-deposited rare earth ore with ammonium salts solution何正艳1,张臻悦2,池汝安2,徐志高1,余军霞2,吴明1,白如钰11. Key Laboratory of Catalysis and Materials Science of the State... of Technology摘 要:In order to reveal the permeability rule of leaching agent solution and the effects of anions in the leaching process of weathered crust elution......
Corrosion behaviors of arc spraying single and double layer coatings in simulated Dagang soil solution LIN Bi-lan(林碧兰)1, LU Xin-ying(路新瀛)1, LI Long(李 龙)2 1. Graduate School at Shenzhen, Tsinghua... high-strength concrete (PHC) pipe piles against soil corrosion. The corrosion behaviors of the coated Q235 steel samples in the simulated Dagang soil solution were investigated by potentiodynamic......
and coarse regions increases during the leaching period, and the preferential solution flow shifts from fine region to coarse region. The surface of the ores at the top of dump is attacked seriously... ores by bacteria and solution. The soluble metals were carried out by the flow of solution [7-8]. The six steps during bioleaching are outer diffusion, inner diffusion, leaching reaction, process......
Leaching kinetics of bastnaesite concentrate in HCl solution BIAN Xue, YIN Shao-hua, LUO Yao, WU Wen-yuan School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China Received 30 October 2010; accepted 27 May 2011 Abstract: The leaching kinetics of bastnaesite concentrate in HCl solution was investigated with respect to the effects of HCl concentration by changing HCl......
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in the hydrometallurgical processes. The solution of optimal control problems that appear in leaching process has been a fascinating field of study for several decades. Many such real-world optimal control problems... criterion of leaching process dependent on the optimal controls of heating temperature, flux of sulfuric acid and flux of sulfur dioxide. Considering the complex solution space and nonlinear objective......
