| ACTIVATION MECHANISM OF AlCl_3 DURING THE LEACHING OF Cu-Ni ORE WITH FeCl_3 |
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| 作者姓名： | Wu Wenjian Chen Zhong Jiang Hanying Yang Songqin |
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| 作者单位： | Wu，Wenjian Chen，Zhong Jiang，Hanying Yang，Songqin Department of Chemistry，Central South Unirersity of Technology，Changsha 410083，China |
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| 基金项目： | Supported by the National Nature Science and the fund of Natione Educational Committee for doctor degree |
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| 摘 要： | 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.
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ACTIVATION MECHANISM OF AlCl_3 DURING THE LEACHING OF Cu-Ni ORE WITH FeCl_3 |
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| Wu,Wenjian Chen,Zhong Jiang,Hanying Yang,Songqin.ACTIVATION MECHANISM OF AlCl_3 DURING THE LEACHING OF Cu-Ni ORE WITH FeCl_3[J].Transactions of Nonferrous Metals Society of China,1993(4). |
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| Authors: | Wu Wenjian Chen Zhong Jiang Hanying Yang Songqin |
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| Affiliation: | Wu,Wenjian Chen,Zhong Jiang,Hanying Yang,Songqin Department of Chemistry,Central South Unirersity of Technology,Changsha 410083,China |
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| Abstract: | After Cu-Ni ore powder pre-soaked in AlCl_3 solution.the leaching ratios of copper and nickel can increase obviously.By X-ray diffraction analyses,electron energy spectrum analyses and electrochemical experiments,it is affirmed that,the activation of aluminum ion includes two 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 ion entering the lattice,so that leaching reactions are accelerated. |
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| Keywords: | oxidative leaching copper-nickel sulfide ore aluminium chloride activation |
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