电渗析法除氯离子制高纯碳酸钙的研究  

Study of Removing Chloride from Calcium Carbonate Using Electrodialysis

作　　者：刘恒[1] 李大成[1] 陈朝珍 

机构地区：[1]四川联合大学化学工程系

出　　处：《成都科技大学学报》1996年第5期42-47,共6页

摘　　要：本文研究了用电渗析法除碳酸钙中的氯离子，测定了电渗析时间，电位梯度、投料量、换电极室溶液等因素对氯离子脱除率的影响。实验结果表明：氯离子脱除率随电渗析的时间延长，电位梯度的增加而增大，随中室碳酸钙投料量的增加而减小。电极室加入强电解质化合物，或定时更换阳极液均可有效提高氟离子脱除率。Removing chloride from Calcium Carhonate using electrodialysis was studied .The effect of duration,potential difference,amount of suspended CaCO3 and changing solution of electrodecompartment on the efficiency of Chloride eliminahon was determined.It was found that the final content of Chloride ions on CaCO3 particles decreased with increasing potential difference and duration of electrodialysis, but increased with increasing suspended CaCO3 in working comerment.Removing chloride from CaCO3 be improved by adding some electmlyte compounds in electrode compartment or changing anode compartment solution with distilled water during the electrodialysis process.

关 键 词：碳酸钙 氯离子 电渗析法 制备 纯度 

分 类 号：TQ132.32[化学工程—无机化工]