An apparatus for producing a low-soda alumina, comprising a calciner for calcining aluminum hydroxide in the presence of a soda-removal agent, by which alumina dust is produced;

本发明提供了一种 用于生产低苏打氧化铝的装置，其包括用于在苏打去除剂存在下煅烧氢氧 化铝的煅烧炉，通过该煅烧炉制得氧化铝粉尘；

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Featured with diaspore, high alumina, high silicon and low iron, the bauxite in Shanxi have to be digested under higher temperature and denser soda in Bayer process.

山西铝土矿呈一水硬铝石型，高铝、高硅、低铁的特点，拜耳法生产氧化铝工艺须在高温，高碱的条件下溶出。

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