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5. Study on Leaching of Rare Earth Oxide by H2SO4 and Defluorinating by Distillation

Study on Leaching of Rare Earth Oxide by H2SO4 and Defluorinating by Distillation

来源 :第八届国际稀土开发与应用研讨会暨第三届中国稀土峰会 | 被引量 : 0次 | 上传用户：zlklovey365

【摘 要】

：

Baotou rare earth tailings calcined by CaCO3 in reducing atmosphere,Bastnaesite and monazite are decomposed to rare earth oxides and fluorine stayed in roasting ore in the form of CaF2.

【作 者】

：

Shuai Yuan He Yang Xiang-xin Xue Yan Zhou 

【机 构】

：

School of Metallurgy,Northeastern University,Institute of Metallurgy Resources andEnvironmental Engi

【出 处】

：

第八届国际稀土开发与应用研讨会暨第三届中国稀土峰会

【发表日期】

：

2016年5期

【关键词】

：

rare earth tailings CaCO3 roasting ore leaching by H2SO4 distillation 

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　　Baotou rare earth tailings calcined by CaCO3 in reducing atmosphere,Bastnaesite and monazite are decomposed to rare earth oxides and fluorine stayed in roasting ore in the form of CaF2.

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