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；HBL121 萃取剂；锌置换渣；高浓度硫酸浸出液；萃取；反萃Extraction of gallium from high concentration sulfuric acid leaching solution of zinc replacing slag by HBL121ZHANG Kui-fang,CAO Zuo-ying,XIAO Lian-sheng,ZENG Li,ZHANG Gui-qing,LI Qing-gang(School of Metallurgy and Environment,Central South University,Changsha 410083,China)Abstract:The extraction of gallium from high sulfuric acid leach solution of zinc replacing slag......
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University, Shanghai 200092, China) Abstract: In order to explore the effect of coarse and fine aggregate chemical composition on the concrete sulfuric acid corrosion resistance, accelerated corrosion... to sulfuric acid. The pH was kept around 0.95 by adding concentrated sulfuric acid everyday. The dimensions of the concrete cylinders were 100 mm in diameter and 200 mm in length. Five evaluation indexes......
-min, SHEN Zhi-ya. Determination of the solubility of ferrous oxalate in diluted sulfuric acid solutions[J]. Chemical World, 1965, 12: 552-553. [23] PINCHING G D, BATES R G. Second dissociation constant... in waste sulfuric acid solutions from stainless steel washing processes ZHANG Jian1, 2, ZHU Zhao-wu1, 2, WANG Li-na1, 2, YI Ai-fei1, 2, QI Tao1, 2 (1. National Engineering Laboratory for Hydrometallurgical......
residue were determined. Fluoride-sulfuric acid and fluoride-nitric acid schemes were proposed for PMC leaching by an extractive separation of tantalum form niobium, lead and impurities, and production... to be decomposed with 30%-70% hydrofluoric acid and its mixture with sulfuric acid [14, 15]. However, recovery of tantalum and niobium into the solution was relatively low (66%-81%) and achieves......
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526020, China) Abstract: Using waste Mn-Zn magnetic core powders as the raw material, the leaching conditions of sulfuric acid were studied and the leaching kinetics mechanism was also analyzed... conditions are as follows: The content of sulfuric acid is 1.15 times of its theoretical content, reaction temperature is 95-100 ℃ and leaching time is 4.5 h. Under above optimal conditions, four times......
(HPGR) was used to mechanically activate high phosphorus rough iron ore concentrate which was obtained by magnetization roasting-magnetic separation of oolitic high phosphorus iron ore, and sulfuric acid leaching was used to remove phosphorus of high concentrate phosphorus rough iron ore with different activation degrees. The influence and mechanism of mechanical activation on sulfuric acid leaching......
or ponds in all mining may also be a source of acid mine drainage (AMD) [1]. Spontaneous oxidation of metal sulfides and elemental sulfur to sulfuric acid results in environmental acidification...J. Cent. South Univ. Technol. (2009) 16: 0223-0229 DOI: 10.1007/s11771-009-0038-y Acidophilic bacterial community reflecting pollution level of sulphide mine impacted by acid mine drainage WAN......
Trans. Nonferrous Met. Soc. China 24(2014) 848-853 Reaction kinetics of roasting high-titanium slag with concentrated sulfuric acid Li-li SUI1,2, Yu-chun ZHAI1 1. School of Materials and Metallurgy... of roasting high-titanium slag with concentrated sulfuric acid was proposed to prepare titanium dioxide, and the roasting kinetics of titania was studied on the basis of roasting process. The effects......
