Sulfuric acid leaching of low-grade refractory tantalum-niobium and associated rare earths minerals in Panxi area of China

1.National Engineering Laboratory of Biohydrometallurgy,General Research Institute for Nonferrous Metals,Beijing 100088, China

2.National Engineering Laboratory of Biohydrometallurgy,General Research Institute for Nonferrous Metals,Beijing 100088, China

3.National Engineering Laboratory of Biohydrometallurgy,General Research Institute for Nonferrous Metals,Beijing 100088, China

基金项目: This work was financially supported by the National Science & Technology Pillar Program (No.2012BAB10B00).

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