M. A. Shabani, M. Irannajad,  and A. R. Azadmehr, Investigation on leaching of malachite by citric acid, Int. J. Miner. Metall. Mater., 19(2012), No. 9, pp. 782-786. https://doi.org/10.1007/s12613-012-0628-9
Cite this article as:
M. A. Shabani, M. Irannajad,  and A. R. Azadmehr, Investigation on leaching of malachite by citric acid, Int. J. Miner. Metall. Mater., 19(2012), No. 9, pp. 782-786. https://doi.org/10.1007/s12613-012-0628-9

Investigation on leaching of malachite by citric acid

+ Author Affiliations
  • Corresponding author:

    M. Irannajad    E-mail: iranajad@aut.ac.ir

  • Received: 10 October 2011Revised: 16 December 2011Accepted: 5 January 2012
  • Leaching of an oxidized copper ore containing malachite, as a new approach, was investigated by an organic reagent, citric acid. Sulfuric acid is the most common reagent in the leaching of oxide copper ores, but it has several side effects such as severe adverse impact on the environment. In this investigation, the effects of particle size, acid concentration, leaching time, solid/liquid ratio, temperature, and stirring speed were optimized. According to the experimental results, malachite leaching by citric acid was technically feasible. Optimum leaching conditions were found as follows:the range of particle size, 105-150 µm; acid concentration, 0.2 M; leaching time, 30 min; solid/liquid ratio, 1:20 g/mL; temperature, 40℃; and stirring speed, 200 r/min. Under the optimum conditions, 91.61% of copper was extracted.
  • loading
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Share Article

    Article Metrics

    Article Views(442) PDF Downloads(30) Cited by()
    Proportional views

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return