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

1.介绍苛化工段直接生产沉淀碳酸钙的新技术。

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

2.添少量的熟石灰可即刻消除碳酸根和腐植酸有机杂质的影响。