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Silica and Iron Oxide Recovery and Mineral Carbonation from Serpentine Minerals Using Acid Dissolution and pH Swing Processes
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  • Journal title : Economic and Environmental Geology
  • Volume 49, Issue 1,  2016, pp.13-22
  • Publisher : The Korean Society of Economic and Environmental Geology
  • DOI : 10.9719/EEG.2016.49.1.13
 Title & Authors
Silica and Iron Oxide Recovery and Mineral Carbonation from Serpentine Minerals Using Acid Dissolution and pH Swing Processes
Baek, Jiyeon; Jo, Yeonu; Lee, Jeongheon; Kwon, Nayoon; Kim, Yeram; Choi, Suk; Kim, Sunghee; Roh, Yul;
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The objectives of this study were to recover silica and iron oxides and sequestration using serpentine via various acid dissolution and pH swing processes. Serpentine collected from Guhang-myeon in S. Korea were mainly composed of antigorite and magnetite consisting of (45.3 wt.%), MgO (41.3 wt.%), (12.2 wt.%). Serpentine pulverized () and then dissolved in 3 different acids, HCl, , . Residues treated with acidic solution were recovered from the solution (step 1). And then the residual solution containing dissolved serpentine was titrated using . And pH of the solution increased up to pH
acid dissolution pH swing;resource recovery; sequestration;antigorite;
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