氟盐取代-EDTA滴定法测定铝土矿中铝量

Determination of Aluminum in Bauxites by Fluorate Replacement-EDTA Titrimetry

摘要: 采用EDTA滴定法(氟盐取代)对高铁质铝土矿石中三氧化二铝的含量进行测定.重点探讨了氟化钾的加入量及煮沸时间对三氧化二铝测定结果的影响.方法用于实际样品中三氧化二铝的测定,结果符合质量管理规范.

Abstract: A method for the determination of Al2O3 in bauxite samples with high-Fe by fluorate replacement EDTA titrimetry was reported in this paper. The factors influencing the determination of Al2O3, such as dosage of replacement reagent KF and reaction (boiling) time were studied. The method has been applied to the determination of Al2O3 in practical bauxite samples and the results were in agreement with quality management regulation.