金属铝的生产已有近90年的历史,所用方法为冰晶石——氧化铝熔盐电解法。这种方法的工艺和设备虽然经过了不断地改进,使铝的生产在世界上已达年产1000万吨以上,成为仅次子钢铁的第二大金属。但是,由于这种传统炼铝方法的一些基本缺点没有得到克服,影响了铝工业的进一步发展,因此所谓“新法炼铝”的研究一直在进行。近年,由 Aluminum metal production has been nearly 90 years of history, the method used for cryolite - alumina molten salt electrolysis. Although the process and equipment of this method have been continuously improved, the production of aluminum in the world has reached an annual output of over 10 million tons, making it the second largest metal of only second-only steel. However, since some of the basic disadvantages of this traditional aluminum smelting method have not been overcome, affecting the further development of the aluminum industry, the so-called “new law smelting aluminum” has been going on. In recent years, from