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法及协同稳定化. 表1 含砷废水的稳定化工艺对比 Table 1 Comparison of stabilization and solidification technologies of three wastes containing arsenic 1.2.1 钙盐沉淀法 钙盐沉淀法主要利用砷酸根和亚砷酸根与钙离子可生成砷酸钙与亚砷酸钙沉淀的原理,达到将... of removal and stabilization of arsenic by unary and binary hydrothermal reduction and mineralization process 2.1 实验原料 本工艺中研究对象为某冶炼企业的含砷污酸经控制电位选择性脱铜后的含砷废水[58],透明无色,pH=0.6,含砷废水的化学成分见表2. 2.2......
; 文章编号:1672-7207(2008)06-1157-07 Preparation of arsenic trioxide from arsenic sulfide slag ZHENG Ya-jie, LIU Wan-yu, BAI Meng, ZHANG Chuan-fu (School of Metallurgical Science and Engineering, Central South University, Changsha 410083, China) Abstract: Arsenic trioxide was prepared by leaching arsenic sulfide slag in NaOH solution, oxidating with air and reducing with sulfur dioxide......
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Two-stage precipitation process of iron and arsenic from acid leaching solutions N. J. BOLIN, J. E. SUNDKVIST Boliden Mineral AB, SE-936 81 Boliden, SWEDEN Received 20 September...; Abstract: A leaching process for base metals recovery often generates considerable amounts of impurities such as iron and arsenic into the solution. It is a challenge to separate the non......
J. Cent. South Univ. (2020) 27: 1176-1185 DOI: https://doi.org/10.1007/s11771-020-4358-2 Preparation of magnetic Fe3O4@Cu/Ce microspheres for efficient catalytic oxidation co-adsorption of arsenic... solvothermal approach and further utilized to remediate toxic arsenic (As(III)) pollution. The effects of Cu/Ce elements co-doping on the crystal structure, catalytic oxidation and adsorption......
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类号:TF511 文献标志码:A Thermodynamics of arsenic removal from arsenic-bearing iron ores ZHANG Shu-hui, L? Qing, HU Xiao (College of Metallurgy and Energy, Hebei United University, Tangshan 063009, China Abstract: The effects of different atmosphere and temperature conditions on the equilibrium species and arsenic removal about arsenic-bearing ores from South of China were......