CAJ | 학술논문

用盐酸提取赤泥和石灰石的混合料后,通过邻二氮菲分光光度法测定提取液中铁含量,进而求得混合料中氧化铁的质量分数,以此来衡量混匀度.结果表明,该法与重铬酸钾法比较,精密度和准确度均无显著性差异,测定混匀度的相对误差在±2%,且方法简便、快速、准确、时环境友好,可用于生产实时监控.
용염산제취적니화석회석적혼합료후,통과린이담비분광광도법측정제취액중철함량,진이구득혼합료중양화철적질량분수,이차래형량혼균도.결과표명,해법여중락산갑법비교,정밀도화준학도균무현저성차이,측정혼균도적상대오차재±2%,차방법간편、쾌속、준학、시배경우호,가용우생산실시감공.
A method for the determination of mixedness degree of red mud and limestone by spectrophotometry with 1 ,10-phenanthroline was developed. The mixture of red mud and limestone was dissolved by hydrochloric acid, and iron content in the sample solution was determined by speetrophotometry with 1,10-phenanthroline. The mass fraction of Fe2O3 in the mixture was calculated and used as a representation of mixedness degree. The results of the study show that the new method provides similar precision and accuracy for the mixedness degree determination with the dichromate titration method with relative errors of about 2%. The new method also provides the advantages of simple operation, more efficiency, environment-friendly and is in favor of real-time monitoring in production.