This article studies the main factors, which affect the extract ratio of aluminum oxide from lean alumina ore, such as the ratio of raw material, particle size, broiled temperature, and broiled time.

• 摘要探讨了原料配比、粒度以及配料烧结温度、时间等工艺因素对贫铝矾土中氧化铝的提取效率的影响。