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前言我省的稀土矿,有两种主要类型。一种是以钇基重稀土为主的龙南稀土矿;另一种是以镧钕轻稀土为主的寻乌稀土矿。它们都是由于地质上的次生作用和适当的形成条件,不是以独立矿物或类质同象等形式存在,而是以离子吸附形式被吸附于自然界的无机离子交换剂——铝硅酸盐粘土矿物上面。文献[1]论述了这类稀土矿的特点和交换(浸出)条件,指出这种稀土矿能在水溶液中(中性或弱酸性)被某些阳离子(如Na~+)交换进入溶液。原矿中
Preface My province’s rare earth mine, there are two main types. One is based on yttrium-based heavy rare earth Longnan rare earth ore; the other is based on lanthanum neodymium light rare earth rare earth Ursenized. They are due to geological secondary role and the formation of appropriate conditions, not in the form of independent minerals or isomorphism exist, but in the form of ion adsorption is adsorbed in nature inorganic ion exchanger - aluminosilicate Clay mineral top. Literature [1] discusses the characteristics and exchange (leaching) conditions of these rare earth minerals, pointing out that the rare earth ore can be exchanged into the solution by some cations (such as Na ~ +) in aqueous solution (neutral or slightly acidic). In the ore