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通过研究工业拜耳法种分母液与石灰反应生成的水合铝酸钙的物理及化学性质 :粒度细 (10 μm左右 ) ,比表面积大 (5 0m2 /g以上 ) ,主要物相为 3CaO·Al2 O3·6H2 O ,加热脱水分解为 12CaO·7Al2 O3 和CaO等 (差热分析吸热峰为2 70~ 32 0℃和 80 0~ 830℃ ) ,发现它适于作有机高分子材料的阻燃填充剂和铝酸钙水泥等化工及耐火材料的原料。
The physical and chemical properties of the hydrated calcium aluminate formed by the reaction of industrial Bayer process seed liquor with lime are characterized by fine particle size (about 10 μm), large specific surface area (50 m 2 / g or more), and the main phase is 3CaO · Al 2 O 3 · 6H2O, decomposed into 12CaO · 7Al2O3 and CaO by thermal dehydration (endothermic peak of differential scanning calorimetry is 2 70 ~ 32 0 ℃ and 80 0 ~ 830 ℃), and it was found to be suitable for flame retardant filling of organic polymer materials Agents and calcium aluminate cement and chemical raw materials and refractories.