In order to increase output and quality of alumina produced by sintering process,Zhongzhou Branch,Chalco,adopted deep desilication process to raise A/S ratio.

• 中国铝业中州分公司为了提高烧结法氧化铝的产量和质量；采用深度脱硅.；艺提高精制铝酸钠溶液的硅量指数。