摘要
作者分别以氯化钠、硅酸钠、氯化钠和硅酸钠联用除去工业磷酸中的氟,研究确定了除氟剂及配比,该配比能让除氟后的工业磷酸的w(氟)满足国标饲料级磷酸氢钙生产要求,且操作简便、成本低。
In the article, respectively, NaC1, Na2 SiO3, NaC1 together with Na2 SiO3 are used in fluoride removal. Through the study, fluoride removal stuff and proportion are determined. With the propor- tion,not only the fluorine content after fluoride removal in industrial phosphoric acid will meet with the producing demand of feed-grade dicalcium in GB,but also it is cheap and easily-operated.
出处
《化工科技》
CAS
2015年第2期35-37,共3页
Science & Technology in Chemical Industry
关键词
工业磷酸
化学沉淀法
氯化钠
硅酸钠
Industrial phosphoric acid Chemical precipitation method Sodium chloride Sodium silicate
