在过去十年中,匈牙利有色金属研究所曾詳細地研究了鋁土矿的处理問題。为了探索回收稀有金屬的可能性,本文拟就各种研究方向作一簡短的綜述。拜耳法的主要目的无疑是生产氧化鋁,它是在溶出鋁土矿过程中将可熔性 Over the past decade, the Hungarian Institute of Nonferrous Metals has studied the treatment of bauxite in detail. In order to explore the possibility of recovery of rare metals, this paper intends to make a brief review of various research directions. The main purpose of the Bayer process is undoubtedly the production of alumina, which is fusible in the process of dissolution of bauxite