Application of a selective dissolution protocol to quantify the terminal dissolution extents of pyrrhotite and pentlandite from pyrrhotite tailings

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• 作者：Srinath Garg^a ; ^{srinath.garg@mail.utoronto.ca} ; Vladimiros Papangelakis^a ; ^{vladimiros.papangelakis@utoronto.ca} ; Elizabeth Edwards^a ; ^{elizabeth.edwards@utoronto.ca} ; Radhakrishnan Mahadevan^a ; ^b ; ^{krishna.mahadevan@utoronto.ca}
• 关键词：Nickel ; Pyrrhotite ; Pentlandite ; QEMSCAN&trade ; Selective dissolution ; Sudbury
• 刊名：International Journal of Mineral Processing
• 出版年：2017
• 出版时间：10 January 2017
• 年：2017
• 卷：158
• 期：Complete
• 页码：27-34
• 全文大小：1999 K
• 卷排序：158

文摘

The developed protocol selectively dissolves the pyrrhotite fraction from an upgraded pyrrhotite tailings sample Selective dissolution is achieved at an optimum acid strength of 15 wt% HCl, and at 80 °C The dissolution of Fe was correlated with the dissolution of Ni from pyrrhotite as functions of acidity and temperature Pyrrhotite and pentlandite dissolve at essentially similar rates during oxic ferric leach