分光光度法测定赤泥中水溶性硫酸根的含量  

Determination of water-soluble sulfate in red mud by spectrophotometry

作　　者：张頔[1] 朱云勤[1] 贾红秀[1] 薛绍秀[1] 

机构地区：[1]贵州大学化学与化工学院,贵州贵阳550025

出　　处：《磷肥与复肥》2011年第3期66-67,共2页Phosphate & Compound Fertilizer

摘　　要：氧化铝冶炼排出的固体粉状废弃物(赤泥)中含有硫酸根离子,用铬酸钡分光光度法测定赤泥中的水溶性硫酸根,在波长420 nm处,硫酸根在0～0.12 mg/mL范围内与铬酸根吸光度呈线性关系,加标回收率在98%～106%。该法可用于测定赤泥中水溶性硫酸根含量。The water-soluble sulfate in red mud discharged from alumina smelting as the waste contains sulfate is determined by barium chromate spectrophotometry. In the wavelength 420 nm, there is a linear relationship between the sulfate concentration and absorbance at the range of 0- 0.12 mg/mL. The recovery of standard addition is 98%- 106 %, the method can be used for determination of water-soluble sulfate in red mud.

关 键 词：赤泥 水溶性硫酸根 铬酸钡分光光度法 

分 类 号：TF801[冶金工程—有色金属冶金]