摘要
氧化法通常是将Fe(Ⅲ)化合物直接投入高碱度次氯酸钠溶液反应制备高铁(Ⅵ)酸盐。本文则把三氯化铁制成六氟合铁酸钾投料制备高铁(Ⅵ)酸盐,使得产品产率明显提高、稳定性增强。经优化确定的工艺条件是:三氯化铁和氟化钾按摩尔比1∶9投料制得固态六氟合铁(Ⅲ)酸钾,把该配合物加于次氯酸钠高碱度溶液中,恒温45℃、反应90min,生成高铁(Ⅵ)酸盐溶液浓度可达0.2mol/L左右。
In the traditional oxidation process an Fe(Ⅲ) compound is put into a high-alkali solution of (sodium) hypochorite to produce a ferrate(Ⅵ) solution. In this work ferric chloride was converted into (potassium) fluoferrite, which was used to produce a ferrate(Ⅵ) solution. The results show that the yield was obviously (improved), and the product stability was increased. The process conditions were optimized. Ferric chloride and potassium fluoride were mixed in a mole ratio of 1∶9 to produce potassium fluoferrite, which was put into a high-alkali solution of (sodium) hypochlorite at a constant temperature of 45 ℃ for 90 min, and the product concentration of the Ferrate(Ⅵ) solution reached about 0.2 mol/L.
出处
《应用化学》
CAS
CSCD
北大核心
2005年第5期507-510,共4页
Chinese Journal of Applied Chemistry
基金
河南省环保局资助项目(2002016)
