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After Cu-Ni ore powder pre-soaked in AlCl_3 solution.the leaching ratios of copper andnickel can increase obviously.By X-ray diffraction analyses,electron energy spectrum analysesand electrochemical experiments,it is affirmed that,the activation of aluminum ion includestwo aspects:one is the surface change of the ore by the absorption of hydrolysates,and the oth-er is the change of semiconductor characteristics of the metal sulfides by impurity aluminum ionentering the lattice,so that leaching reactions are accelerated.
After Cu-Ni ore powder pre-soaked in AlCl 3 solution. The leaching ratios of copper andnickel can increase obviously.By X-ray diffraction analyzes, electron energy spectrum analyzes and electrochemical experiments, it is affirmed that the activation of aluminum ions include aspects: one is the surface change of the ore by the absorption of hydrolysates, and the oth-er is the change of semiconductor characteristics of the metal sulfides by impurity aluminum ionentering the lattice, so that leaching reactions are accelerated.