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包头稀土研究院的研究人员研究设计了一种萃取分离新方法——混合分馏萃取分离法(或称“FB法”)使用这种方法在1988年8月份的1.25升混合澄清槽中进行了扩大试验,在78级槽体中稳定地得到了La_2O_399.9%～99.95%、CeO_2>99.5%以及
Researchers at Baotou Rare Earth Research Institute have devised a new method for extraction and separation - the mixed fractionation extraction (or “FB method”) was expanded using this method in a 1.25 liter mixed clarification tank in August 1988 Test, in the 78-level tank with stable La_2O_399.9% ~ 99.95%, CeO_2> 99.5% and