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, and the components and microstructures of the samples were examined by means of XRF, XRD and SEM. An aluminum extraction efficiency of 86.50% was achieved when the sintered pellets were leached using 4 mol·L-1 H2SO4 with solid/liquid ratio(m/V) of 1∶5 at 80 ℃ for 24 h. An iron extraction efficiency of 94.60% was achieved under the same condition for the maximum extraction efficiency of Al......
, such as reflux extraction, ultrasonic extraction, have deficiencies in certain aspects such as long extraction time, low efficiency or uneasy treatment[11-13]. So it needs to find a new method. Based... of factors on efficiency of extraction in orthogonal experiments: (a)pH value of solvent at the first extraction; (b)pH value of solvent at the second extraction; (c) Microwave power; (d) Mass ratio......
80 min. Extraction efficiency is severely influenced by stoichiometric parameters. Among the stoichiometric parameters, volume ratio of aqueous(A) to extraction(E) solution is the most influential parameter. After extraction, lithium ion could be easily stripped from the extraction solution by acidic solutions. Stripping efficiency decreases with p H of acidic solutions, and the kind of acid does......
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Recovery of oxalic acid from mother-liquor containing hydrochloric acid and cobalt by solvent extraction with P350 TIAN Qing-hua(田庆华), GUO Xue-yi(郭学益), LI Zhi-hai(李治海) School of Metallurgical... ____________________________________________________________________________________________ Abstract: The solvent of P350 was applied to extract and separate the oxalic acid from the mother-liquor originated from the precipitation of cobalt by oxalic acid, and its extraction......
molecule of Cyanex 923. Equilibrium studies were used to assess the extraction efficiency of vanadium(V) recovery from the sulfuric acid solution.关键词:...Solvent extraction of vanadium from sulfuric acid solutionWANG Mingyu, ZHANG Guiqing, WANG Xuewen, and ZHANG Jialiang School of Metallurgical Science and Engineering, Central South University......
of these minerals. When the boron-rich slag was slowly cooled to 1100°C, the slag crystallized well and the efficiency of extraction of boron(EEB) of the slag was the highest observed in the present study...Innovative method for boron extraction from iron ore containing boronGuang Wang,Jing-song Wang,Xin-yun Yu,Ying-feng Shen,Hai-bin Zuo,Qing-guo XueState Key Laboratory of Advanced Metallurgy......
). The extraction efficiency of potassium decreased from 29.9% to 28.7%, whereas the separation factor increased from 2.66 to 3.72 with a decrease in the initial OH- concentration from 60.9 to 28.0 g/L. Overall, the effect of alkalinity on the extraction efficiency and separation factor was small. Therefore, the alkalinity of the K-Na alkaline solution was not adjusted in subsequent extraction tests......
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