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本文主要介绍Al_2O_3>99.95%、粒度2~5微米的α—Al_2O_3的试验研究方法,并阐明脱硅、除铁、去碱的机理。此种纯α—Al_2O_3具有非常广泛的的用途和相当高的经济价值。
This paper mainly introduces the experimental research of α-Al_2O_3 with 99.5% Al_2O_3 and 2 ~ 5 μm particle size, and expounds the mechanism of desiliconization, iron removal and dealkalization. Such pure α-Al 2 O 3 has a very wide range of uses and a very high economic value.