A new technology for producing PCC directly in the causticizing stage is reported in this paper.

介绍了一种苛化工段直接生产沉淀碳酸钙。

Experiments show that causticizing by adding a small quantity of slaked lime can eliminate the interference of carbonate ions and humic acid salts.

添少石灰可即刻消除碳酸根和腐植酸盐等有机杂质影响。