Comparative Study on Removal of Fe, Al and Ca From MG-Si by Acid Leaching

被引：4
|
作者：
Mai, Yi [1 ]
Ma, Wenhui [1 ]
Xie, Keqiang [1 ]
Wang, Tong [1 ]
Zhang, Hu [1 ]
Liu, Qiang [1 ]
机构：
[1] Kunming Univ Sci & Technol, Natl Engn Lab Vacuum Met, Kunming, Peoples R China
来源：
FRONTIERS OF MATERIALS, CHEMICAL AND METALLURGICAL TECHNOLOGIES, PTS 1 AND 2 | 2012年 / 581-582卷
关键词：
metallurgical grade silicon (MG-Si); acid leaching; removal of impurity;
D O I：
10.4028/www.scientific.net/AMR.581-582.831
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
In order to find the most effective hydrometallurgical method of removing iron, aluminum and calcium from MG-Si, a variety of acid leaching methods were presented. The research results show that the order of capacity of metallic impurity removal is HF, HCl, HNO3 and H2SO4. The most effective hydrometallurgical method is the leaching by mixed acid with hydrofluoric acid and sulfuric acid. Removal efficiency of hydrochloric acid pressure leaching can improved as the pressure increases. Sulfuric acid and nitric acid even using high pressure leaching cannot obtain high impurity removal rate. The leaching by hydrofluoric acid or mixed acid containing hydrofluoric acid and sulfuric acid is very effective on removal of iron and aluminum, but less effective on calcium.
引用
收藏
页码：831 / 835
页数：5
相关论文
共 50 条
  • [11] Effects of Mg-Si ratio on microstructures and properties of Al-Mg-Si alloy
    Wang J.
    Luo B.-H.
    Zheng Y.-Y.
    Bai Z.-H.
    Li B.
    Luo, Bing-Hui (lbh@csu.edu.cn), 1600, Central South University of Technology (27): : 1091 - 1101
  • [12] Ammonia removal properties of lightweight aggregates from Si–Al–Fe and Si–Ca rocks
    Hrissi K. Karapanagioti
    J. Vakros
    G. Stamatakis
    S. Kavouri
    A. Tsitsas
    Environmental Chemistry Letters, 2010, 8 : 355 - 361
  • [13] Changes in Solidification Morphology of Mg-Si Alloys by Ca Additions
    Ajith Kumar, K. K.
    Viswanath, Abhilash
    Pillai, U. T. S.
    Pai, B. C.
    Chakraborty, M.
    TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS, 2012, 65 (06) : 695 - 699
  • [14] Interactions between Fe-rich intermetallics and Mg-Si phase in Al-7Si-xMg alloys
    Wu, Xiaoyan
    Zhang, Huarui
    Ma, Zhen
    Tao, Tongxiang
    Gui, Jing
    Song, Wei
    Yang, Bo
    Zhang, Hu
    JOURNAL OF ALLOYS AND COMPOUNDS, 2019, 786 : 205 - 214
  • [15] SPECTRAL DETERMINATION OF FE, SI, AL, CA, AND MG IN COALS AND ANTHRACITES
    BALYKIN, VP
    TERENTEVA, AI
    INDUSTRIAL LABORATORY, 1984, 50 (12): : 1162 - 1163
  • [16] Strengthening effects of Mg-Si precipitates on wear resistance of SiCp/Al-Si-Mg composites
    Ye, Chengtong
    Jia, Lina
    Qi, Yan
    Jin, Zuheng
    Liu, Yanyu
    Wang, Wenbo
    Zhang, Hu
    WEAR, 2025, 564
  • [17] Leaching of Ca, Si, Fe and Al from concretes, based on sulphate resistant cement, due to bacterial attack - a correlation study
    Harbulakova, V. Ondrejka
    Estokova, A.
    Luptakova, A.
    Kovalcikova, M.
    1ST INTERNATIONAL CONFERENCE ON ADVANCES IN ENVIRONMENTAL ENGINEERING (AEE 2017), 2017, 92
  • [18] Thermodynamic properties of Si-Al, -Ca, -Mg binary and Si-Ca-Al, -Ti, -Fe ternary alloys
    Miki, T
    Morita, K
    Sano, N
    MATERIALS TRANSACTIONS JIM, 1999, 40 (10): : 1108 - 1116
  • [19] P removal from Si by Si-Ca-Al alloying-leaching refining: Effect of Al and the CaAl2Si2 phase
    Zhu, Mengyi
    Yue, Shengying
    Wu, Guixuan
    Tang, Kai
    Xu, Yijiang
    Safarian, Jafar
    SEPARATION AND PURIFICATION TECHNOLOGY, 2021, 271
  • [20] Ammonia removal properties of lightweight aggregates from Si-Al-Fe and Si-Ca rocks
    Karapanagioti, Hrissi K.
    Vakros, J.
    Stamatakis, G.
    Kavouri, S.
    Tsitsas, A.
    ENVIRONMENTAL CHEMISTRY LETTERS, 2010, 8 (04) : 355 - 361
12345