摘要
探讨了从磷资源回收的碘产品中除氟去杂的工艺机理,设计正交实验得出了富碘溶液脱氟除砷的最优工艺条件及有效方法:在pH为7左右、铝盐量为50 g/L、钙盐量为5 g/L条件下,脱氟率能达到99%,精碘含I2≥99.5%,Pb、Hg、As杂质元素含量均低于1 mg/kg。
The mechanism of defluorination and impurity removal from iodine products recycled in resource is researched. The suitable technological conditions and effective methods of defluori arsenic removal from iodine-rich solution are gotten through orthogonal experiments. Under the phosphate nation and conditions and the iodine basically reached ≥99.5%.
出处
《有色金属(冶炼部分)》
CAS
北大核心
2011年第1期34-36,共3页
Nonferrous Metals(Extractive Metallurgy)
基金
贵州省科技基金资助项目(黔科合J字[2009]2025)
关键词
PH
氟
碘溶液
絮凝净化
pH
Fluorine
Iodine solution
Flocculent purification