置换滴定法测定催化剂中二氧化钛的含量

THE DETERMINATION OF TITANIA CONTENT IN THE CATALYST BY DISPLACEMENT TITRATION METHOD

以苦杏仁酸作释放剂,采用置换滴定法测定催化剂中二氧化钛含量,并对多种阳离子可能存在的干扰进行了考察。试验结果表明:本方法操作简便,结果准确、可靠,精密度高;并且不受一般金属离子的干扰,选择性较高,完全能够满足催化剂生产的需要。

Adopting mandelic acid as releasing agent, titania content in the catalyst by displacement titration method was tested, and the disturbance probably caused by the existing of multications was studied. Experimental result showed the method is simple and convenient, the precision is high, test result is accurate and credible, and moreover, conventional metal ion can＇t disturb the test method. The selectivity of the displacement titration method is high, which can meet the requirement of catalyst production.