It is proved that preduction of high-carbon graphite by chloridizing roast is better than by alcali.

指氯焙烧法生产高碳石墨较碱法为优。

The ammonium chloride is obtained by processing the by-product solution of ammonium chloride in the workshop of coordinative producing alcali.

产的氯溶液在联碱车间加成氯、艺合理经济划算。