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。
2
An apparatus for producing a low-sodaalumina, comprising a calciner for calcining aluminum hydroxide in the presence of a soda-removal agent, by which alumina dust is produced;