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本文介绍的是铝硅酸盐加石灰石、苏打和还元剂烧结制取氧化铝的半工业性试验结果。文中指出,高硅铝土矿拜耳赤泥加石灰石、苏打和还元剂烧结能够获得优质熟科。加还元剂后赤泥生料的烧结温度较低,绝大部分可溶性Al_2O_3(80—85％)可在950—970°对形成,迴转窑烧成的熟料经两段溶出后,Al_2O_3的溶出率为87.4％、碱为91.8％。生产1吨Al_2O_3的物料成本,加还元剂时比不加还元剂便宜。另外,加还元剂时的物料流量比不加还元剂低18％。
This article describes the results of the semi-industrial test of aluminosilicate plus limestone, soda and sinter to sinter alumina. The article pointed out that the high-silica bauxite Bayer red mud plus limestone, soda and also sintering agent can get high-quality cooked Branch. After the addition of the additive, the sintering temperature of the red mud was lower, most of the soluble Al_2O_3 (80-85%) could be formed at 950-970 °, and after calcined in rotary kiln, the content of Al_2O_3 The dissolution rate was 87.4% and the base was 91.8%. The cost of producing 1 ton of Al 2 O 3 is cheaper than adding no reducing agent. In addition, plus the agent when the material flow rate of less than 18% lower than the agent.