摘要
试验研究了湿法 (浓 )磷酸两种化学脱氟法 ,即氟硅酸钾—乙醇沉淀法和氟铝酸钠沉淀法。认为 ,后者优于前者 ,比I.M .C真空蒸汽深度脱氟法更经济 ,更适合于中小企业。文中关键探讨了铝在脱氟过程中的机理 ,同时对湿法 (浓 )磷酸 (选择性 )
Two processes,potassium fluosilicate-ethanol precipitation process and cryolite precipitation process,for defluorination of phosphoric acid by wet process were studied,the mechanism of aluminium complex ion in the defluorination was investigated and selective clansing of phosphoric acid by wet process was also reviewed.
出处
《贵州化工》
2003年第2期16-17,20,共3页
Guizhou Chemical Industry
