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of removal aluminum from the high aluminum limonite ore by sodium-salt-added roasting-leaching was developed based on the investigation on properties of mineralogy. And the mechanism of aluminum-iron... by water and acid solution in turn, while α-Al2O3 remains in iron concentrate as a manner of superfine grains. Key words: high-aluminum limonite; roasting; leaching; removing aluminum ......
Kinetic process of oxidative leaching of chalcopyrite under low oxygen pressure and low temperature QIU Ting-sheng(邱廷省)1, NIE Guang-hua(聂光华)2, WANG Jun-feng(王俊峰)1, CUI Li-feng(崔立凤)1 1. School...; Abstract: Kinetic process of oxidative leaching of chalcopyrite in chloride acid hydroxide medium under oxygen pressure and low temperature was investigated. The effect on leaching......
Trans. Nonferrous Met. Soc. China 24(2014) 2986-2990 Leaching behaviors of iron and aluminum elements of ion-absorbed-rare-earth ore with a new impurity depressant Ting-sheng QIU1, Xi-hui FANG1, Hong... such as aluminum and iron ions in leaching solution simultaneously. The surface characteristics and interactions by infrared spectroscopy and X-ray diffraction were studied to optimize the leaching......
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the concentration of leaching agent was 0.20 mol/L, the rare earth leaching efficiency could all reach above 95% and the leaching efficiency of aluminum impurities could be restrained by 10% using magnesium... introduce aluminum and iron ions into leaching liquid, which would lead to numbers of problems [14]. HUANG et al [15] proposed a new technology to recover rare earths from ion-adsorption type rare earths......
Trans. Nonferrous Met. Soc. China 27(2017) 220-226 Extraction of molybdenum and nickel from roasted Ni-Mo ore by hydrochloric acid leaching, sulphation roasting and water leaching Peng-fei XIAN... Abstract: To extract molybdenum and nickel from the roasted Ni-Mo ore, a process of hydrochloric acid leaching, sulphation roasting and water leaching was investigated. The results showed that this process......
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Trans. Nonferrous Met. Soc. China 25(2015) 3139-3145 Kinetics of titanium leaching with citric acid in sulfuric acid from red mud Xiao-bo ZHU1,2, Wang LI1,2, Xue-mao GUAN1,2 1. School of Materials... Received 13 October 2014; accepted 28 December 2014 Abstract: The recovery of titanium with citric acid in sulfuric acid from red mud was put forward to strengthen acid leaching efficiency. The main......
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