Arsenic(V) removal from enargite leach solutions by precipitation of magnesium ammonium arsenate

被引：7
作者：
Li, Tengfei [1 ]
Zhang, Yansheng [1 ]
Zhang, Bo [1 ]
Chang, Kexin [1 ]
Jiao, Fen [1 ]
Qin, Wenqing [1 ]
机构：
[1] Cent S Univ, Sch Minerals Proc & Bioengn, Changsha, Hunan, Peoples R China
来源：
SEPARATION SCIENCE AND TECHNOLOGY | 2019年 / 54卷 / 11期
基金：
中国国家自然科学基金;
关键词：
Arsenic removal; precipitation; magnesium ammonium arsenate; magnesium arsenate; TOOELEITE; MINERALS; KINETICS; AS(III); CALCIUM; WATER;
D O I：
10.1080/01496395.2018.1538245
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
This study investigated a potential method for the removal of arsenic from enargite leach solution containing 5.86 g/L As(V) by precipitation of magnesium ammonium arsenate (MAA). The experimental results showed the As(V) concentration can be reduced to 1.8 mg/L under the optimum conditions. The molar ratio NH4/Mg/As in precipitates formed at different pH values was checked by wet chemical analysis, indicating that some of by-products such as Mg-3(AsO4)(2), Mg(OH)(2), and MgHAsO4 will be formed at the solution pH above or below pH 9.5. Notably, this study indicated MAA has a better ability for arsenic removal than magnesium arsenate. The precipitates also were characterized by XRD and SEM.
引用
收藏
页码：1862 / 1870
页数：9
相关论文
共 32 条
  • [1] Preparation, Structural, Thermogravimetric and Spectroscopic Study of Magnesium Potassium Arsenate Hexahydrate
    Abdija, Zuldjevat
    Najdoski, Metodija
    Koleva, Violeta
    Runcevski, Tomce
    Dinnebier, Robert E.
    Soptrajanov, Bojan
    Stefov, Viktor
    [J]. ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE, 2014, 640 (15): : 3177 - 3183
  • [2] Immobilization of As(III) in soil and groundwater using a new class of polysaccharide stabilized Fe-Mn oxide nanoparticles
    An, Byungryul
    Zhao, Dongye
    [J]. JOURNAL OF HAZARDOUS MATERIALS, 2012, 211 : 332 - 341
  • [3] Removal of arsenic(V) from spent ion exchange brine using a new class of starch-bridged magnetite nanoparticles
    An, Byungryul
    Liang, Qiqi
    Zhao, Dongye
    [J]. WATER RESEARCH, 2011, 45 (05) : 1961 - 1972
  • [4] Influence of mechanical activation on the alkaline leaching of enargite concentrate
    Baláz, P
    Achimovicová, M
    Bastl, Z
    Ohtani, T
    Sánchez, M
    [J]. HYDROMETALLURGY, 2000, 54 (2-3) : 205 - 216
  • [5] Development and evaluation of an early removal process for the beneficiation of arsenic-bearing copper ores
    Bruckard, W. J.
    Davey, K. J.
    Jorgensen, F. R. A.
    Wright, S.
    Brew, D. R. M.
    Hague, N.
    Vance, E. R.
    [J]. MINERALS ENGINEERING, 2010, 23 (15) : 1167 - 1173
  • [6] Enargite concentrate processing by the combination of mechanochemical, hydrometallurgical and precipitation methods
    Bujnakova, Zdenka
    Balaz, Peter
    Zorkovska, Anna
    [J]. INTERNATIONAL JOURNAL OF MINERAL PROCESSING, 2014, 127 : 28 - 36
  • [7] Enhanced stability of tooeleite by hydrothermal method for the fixation of arsenite
    Chai, Liyuan
    Yue, Mengqing
    Li, Qingzhu
    Zhang, Guanshi
    Zhang, Mengxue
    Wang, Qingwei
    Liu, Hui
    Liu, Qianwen
    [J]. HYDROMETALLURGY, 2018, 175 : 93 - 101
  • [8] Cement based solidification/stabilization of arsenic-contaminated mine tailings
    Choi, W. -H.
    Lee, S. -R.
    Park, J. -Y.
    [J]. WASTE MANAGEMENT, 2009, 29 (05) : 1766 - 1771
  • [9] Geochemical modelling of arsenic and selenium leaching in alkaline water treatment sludge from the production of non-ferrous metals
    Cornelis, Geert
    Poppe, Sofie
    Van Gerven, Tom
    Van den Broeck, Eric
    Ceulemans, Michiel
    Vandecasteele, Carlo
    [J]. JOURNAL OF HAZARDOUS MATERIALS, 2008, 159 (2-3) : 271 - 279
  • [10] Recovery of metal values from copper-arsenic minerals and other related resources
    Filippou, Dimitrios
    St-Germain, Pascale
    Grammatikopoulos, Tassos
    [J]. MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW, 2007, 28 (04): : 247 - 298
1234