化工环保2016，Vol.36Issue(4)：460-465,6.DOI:10.3969/j.issn.1006-1878.2016.04.020
高Ca2+浓度CO2沉淀法由电石渣制备纳米CaCO3
Preparation of nano CaCO3 from calcium carbide residue by CO2 precipitation with high Ca2+ concentration
王百年 1葛礼响 1曹萌 1杨保俊1
作者信息
- 1. 合肥工业大学 化学与化工学院，安徽 合肥 230009
- 折叠
摘要
Abstract
Nano CaCO3 was prepared from calcium carbide residue using NH4Cl solution as leaching agent,CO2 as carbonation agent,sodium tripolyphosphate(STP) as additive agent. The experimental results show that:When Ca2+ concentration of calcium carbide residue leaching solution is1.0 mol/L and STP dosage is 3.00%,the nano CaCO3 with 30-60 nm of particle size is prepared;STP has good effect on control of particle size and morphology of nano CaCO3;Under the optimum technological conditions,the yield of nano CaCO3 from calcium carbide residue is 80%,and the economic benefits of calcium carbide residue treatment is 2 670 yuan per ton.关键词
纳米CaCO3/电石渣/氯化铵/三聚磷酸钠/CO2Key words
nano CaCO3/calcium carbide residue/ammonium chloride/sodium tripolyphosphate/CO2分类
资源环境引用本文复制引用
王百年,葛礼响,曹萌,杨保俊..高Ca2+浓度CO2沉淀法由电石渣制备纳米CaCO3[J].化工环保,2016,36(4):460-465,6.
