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一、前言近年来,由于经济发展的变化,氧化铝除作电解铝原料外,在其它方面的用途日趋扩大。非冶炼用的氧化铝与氢氧化铝统称为“特殊氧化铝”。特殊氧化铝是为适应第二次世界大战后经济复兴的需要而开始生产销售的。1955～1965
I. Introduction In recent years, due to changes in economic development, alumina is used as an electrolytic aluminum raw material in other aspects of the growing use of. Non-smelting alumina and aluminum hydroxide collectively referred to as “special alumina.” Special alumina is to meet the needs of the economic recovery after the Second World War and began production and sales. 1955 ~ 1965