丁辛醇废铑催化剂消解液制备高纯三氯化铑研究

发布时间：2018-04-24 14:30

本文选题：废铑催化剂消解液 + 丁辛醇　；参考：《无机盐工业》2017年11期

【摘要】：液相消解是回收丁辛醇铑催化剂废液中铑的一种重要方法,通常消解液中除铑离子、氯离子外,还有硫酸根、磷酸根以及铁、镍、钙等贱金属离子。探索了一种丁辛醇废铑催化剂消解液制备高纯三氯化铑的工艺。首先,消解液在一定条件下加入过量氯化钡过滤除去硫酸根,滤液在一定条件下加入过量钼酸铵过滤除去磷酸根,所得滤液调节酸度后经氢型阳离子交换树脂除去Fe、Ni、Ca、Ba等阳离子杂质,蒸发浓缩干燥得到高纯度三氯化铑,杂质元素总量小于0.05%(质量分数),铑回收率大于99%。
[Abstract]:Liquid phase digestion is an important method to recover rhodium from the waste liquid of butyl octanol rhodium catalyst. Besides rhodium ion, chloride ion, sulfate radical, phosphate radical and base metal ions such as iron, nickel, calcium, etc. The preparation of high purity rhodium trichloride from spent rhodium catalyst solution with butyl octanol was studied. First of all, excess barium chloride filter is added to the solution under certain conditions to remove sulfate radical, and excess ammonium molybdate filter is added to the filtrate under certain conditions to remove phosphate radical. After adjusting the acidity of the filtrate, the cationic impurity such as Fegni and Caobium Ba were removed by hydrogen exchange resin, and the high purity rhodium trichloride was obtained by evaporating and drying. The total impurity content was less than 0.05 (mass fraction, the recovery rate of rhodium was greater than 99%).
【作者单位】：中海油天津化工研究设计院有限公司;
【分类号】：TQ138.22

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