磷铋钼蓝分光光度法测定含钛冶金物料中磷  

Determination of phosphorus content in titanium materials by spectro photometer

作　　者：王一凌[1,2] 高丽娟[1] 

机构地区：[1]辽宁科技大学 [2]鞍钢钢铁研究院

出　　处：《冶金能源》2015年第5期57-60,64,共5页Energy For Metallurgical Industry

摘　　要：实验采用氢氟酸分离含钛冶金物料中硅,硼酸碳酸钠混合熔剂熔融的方法分解试样,解决了磷元素测定由于基体多样导致的酸溶消解难,碱熔过滤沉淀速度慢的问题,同时避免了磷元素被沉淀物吸附的损失问题,分离硅使得硫酸浸出速度快且有效地防止了钛的水解,选择高锰酸钾为氧化剂保证氧化完全。优化实验条件后,磷的检测的范围在0.005%~0.5%,方法的相对标准偏差小于8%,回收率在90%~110%之间,结果令人满意。Experiment using hydrofluoric acid separation containing titanium metallurgy material of sil -icon, boric acid sodium carbonate mixed flux fusion method of decomposition of sample to solve the phosphorus determination due to the matrix leading to a variety of acid dissolution difficult , alkali fu-sion filtering sedimentation speed is slow , while avoiding the phosphorus to sediment ceiling attached to the loss, separation of silicon makes sulfuric acid leaching speed is fast and effective to prevent the hy -drolysis of titanium .The choice of potassium permanganate as oxidant guarantees complete oxidation . The range of phosphorus detection is 0.005%~0.5%, the relative standard deviation of the method is less than 8%, the recovery is 90% ~110%, and the results are satisfactory .

关 键 词：磷铋钼蓝 分光光度法 磷 含钛物料 

分 类 号：TG115[金属学及工艺—物理冶金]