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石灰窑在有色金属行业中的应用

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石灰窑并不是石灰的专利,在有色金属方面应用也是相当广泛的,并且占有相当中的一部分。铝冶炼的第一步是生产氧化铝。在烧结法生产氧化铝的流程个,首先要将由铝土矿、石灰、瞄等原料配制成的生料烧结成熟科。烧结过程是在石灰窑中进行的,烧成温度1300左右。生产氧化铝的最后一道工序是将包线化铝焙烧成氧化铝,目前一殷也是采用石灰窑,倍挠温度1200一1250℃(本文中的反应温度均指物料温度。用于加热的窑气的温度比它还要高出200—300℃)。

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