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Method of producing low soda alumina, low soda alumina produced by the method and method of producing porcelain
Method of producing low soda alumina, low soda alumina produced by the method and method of producing porcelain
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机译:生产低钠氧化铝的方法,用该方法生产的低钠氧化铝和生产瓷器的方法
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摘要
A method of producing alumina having a low soda content and excellent sintering properties includes the steps of adding a soda removal agent to alumina source material and calcining the alumina source material in a calciner (2), using a dust collector (5) to collect calcined alumina source material dust contained in the exhaust gas, discharging a portion of the collected dust out of the system, slurrying another portion of the collected dust in a slurrifier (10) while controlling slurry pH, washing and filtering the slurried dust and recirculating it back to the calciner, recirculating still another portion of the collected dust together with a mineralizing agent to the calciner, and removing the low soda alumina after the calcination.
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