基于南方离子型稀土平均配分数据的EDTA滴定法快速测定离子型稀土无氨浸取液中的稀土总量

Rapid EDTA Titration Method for the Determination of Total Rare Earths in Ionic Rare Earth Non-ammonia Leaching Solution Based on the Average Distribution Data of Southern Ion-type Rare Earths

离子相稀土总量是离子型稀土浸取工艺中最重要的参数,可用于评价离子型稀土提取工艺效果。本文旨在建立一种适用于离子型稀土无氨浸取液中离子相稀土总量的现场简易测定方法。本文对样品测定条件、方法精密度等进行了试验,并通过1000余个典型的离子型稀土原矿检测数据进行统计得到典型的稀土平均分子量,可直接应用于现场分析。

The total rare earth content is the most important index in the ionic rare earth leaching process,and can be used to evaluate the effect of the ionic rare earth extraction process.This article aims to establish a simple on-site determination method for the total content of ionic rare earth in the ionic rare earth non-ammonia leaching solution.In this paper,the determination conditions,precision,etc.have been tested,and the typical average molecular weight of rare earths is obtained by statistics of more than 1000 typical ion-type rare earth detection data,which can be directly applied to on-site analysis.