以气态配合物LnAlnCl3n+3(Ln=镧系元素)为载体，研究了从氟碳铈矿精矿中提取分离稀土元素的分步氯化-化学气相传输反应。精矿加热至800K，然后在800～1300K氯化。生成的氯化物在1300K与配体反应生成气态配合物，并化学传输分离6h，CaCl2和BaCl2留在残渣中。研究结果表明，递减温度场和波浪形温度场中的化学传输反应呈现明显不同的特性。
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