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thermal analysis (TG-DTA). The photocatalytic activity of CuO/ZrO2 catalyst was investigated based on the H2 evolution from oxalic acid solution under simulated sunlight irradiation. The effects... activity of the as-prepared photocatalyst was evaluated by measuring the amount of H2 evolution from 0.05 mol/L oxalic acid solution under simulated sunlight irradiation. The H2 production experiment......
organic phase by sulfuric acid can increase from 10%(without isooctanol) to 99%(with 15 vol% isooctanol). In the extraction test of the simulated red mud leaching liquor, the separation factors between...Application of P507 and isooctanol extraction system in recovery of scandium from simulated red mud leach solutionChuanying Liu,Li Chen,Ji Chen,Dan Zou,Yuefeng Deng,Deqian LiState Key Laboratory......
organic phase by sulfuric acid can increase from 10%(without isooctanol) to 99%(with 15 vol% isooctanol). In the extraction test of the simulated red mud leaching liquor, the separation factors between...Application of P507 and isooctanol extraction system in recovery of scandium from simulated red mud leach solutionChuanying Liu,Li Chen,Ji Chen,Dan Zou,Yuefeng Deng,Deqian LiState Key Laboratory......
ammonia. Thus, it is difficult to reuse the solution for ore leaching due to the generation and wrapping of solid hetero-poly-tungstate salt. And few effective ways have been found to deal with large... solution. After extraction of tungsten from the solution, such as by solvent extraction, the raffinate was returned to ore leaching stage with supplementing the acid to an initial level. The acid......
Nickel leaching from low-grade nickel matte using aqueous ferric chloride solutionZhi-Qiang Ning,Hong-Wei Xie,Qiu-Shi Song,Hua-Yi Yin,Yu-Chun ZhaiSchool of Metallurgy,Northeastern University摘 要:Nickel leaching from low-grade nickel matte(LGNM) using aqueous ferric chloride solution was studied.The influence of factors such as leaching temperature......
J. Cent. South Univ. (2016) 23: 39-43 DOI: 10.1007/s11771-016-3046-8 Kinetic study on leaching of nickel from Turkish lateritic ore in nitric acid solution Tevfik AGACAYAK, Veysel ZEDEF, Ali ARAS..., 200 r/min was selected as optimum operating stirring speed in order to provide the stability of leaching solution during subsequent experiments by investigating the effects of other parameters......
parameters and their levels In the leaching experiments, 150 mL of acid with calculated amount of concentration was added to 500 mL Beaker. Solution temperature was controlled by heater and stirring speed... to solution) and could be changed. To prevent solution inside leaching tank from possible evaporation, foil with aluminum material was used. At the end of each test, obtained product was filtered......
study on the leaching of lead from zinc leach residue using acidic calcium chloride aqueous solution. Six main process conditions, i.e., the solution p H value, stirring rate, concentration of Ca Cl2 aqueous solution, liquid-to-solid(L/S) ratio, leaching temperature, and leaching time, were investigated. The microstructure and components of the residue and tailing were characterized using scanning......
">The effective leaching of rare earth elements(La, Ce, Y and Eu) from simulated contaminated soil using bio-surfactant was investigated in a lab-scale column leaching experiment, where anionic... and elemental speciation. Column leaching results showed that saponin solution was more effective than rhamnolipid in the removal of the four rare earth elements tested, with the accumulative removal......
">The effective leaching of rare earth elements(La, Ce, Y and Eu) from simulated contaminated soil using bio-surfactant was investigated in a lab-scale column leaching experiment, where anionic... and elemental speciation. Column leaching results showed that saponin solution was more effective than rhamnolipid in the removal of the four rare earth elements tested, with the accumulative removal......
