微波消解微型化电位滴定仪快速测定磷酸铁锂中铁  

Rapid determination of iron in lithium iron phosphate by micro-potentiometric titration with microwave digestion

作　　者：彭桦[1] 张江坤[1] 余慧茹[1] 甘海轩 杨稳权[1] 何海涛[1] 彭丽群[1] 朱桂华 史鑫[1] PENG Hua;ZHANG Jiangkun;YU Huiru;GAN Haixuan;YANG Wenquan;HE Haitao;PENG Liqun;ZHU Guihua;SHI Xin(National Engineering and Technology Research Center for Development&Utilization of Phosphorus Resources,Yunnan Phosphate Group Co.,Ltd.,Kunming 650600,China)

机构地区：[1]云南磷化集团有限公司国家磷资源开发利用工程技术研究中心,云南昆明650600

出　　处：《磷肥与复肥》2022年第12期38-39,共2页Phosphate & Compound Fertilizer

基　　金：云南省科技攻关计划“基于磷化工与胶磷矿选矿耦合碳减排关键技术研究”(国磷2022-04)。

摘　　要：采用微型化实验理论进行实验设计,微波加热消解磷酸铁锂样品,自动电位滴定仪测定铁含量。测定结果同GB/T 6730.65—2009仲裁法无显著性差异,绝对误差为0.10%~0.31%,加标回收率在92.00%~114.20%,准确度高,精密性好。方法试剂用量少,安全简便,效率高,适合大量磷酸铁锂成品、原料、中间产品的快速分析。The experimental design is carried out by using the miniaturization experimental theory.The sample of lithium iron phosphate is digested by microwave heating,the iron content is determined by automatic potentiometric titrator.The results have no significant difference with the results determined by the arbitration method in GB/T6730.65—2009.The absolute error is 0.10%-0.31%,the recovery rate is 92.00%-114.20%,it has high accuracy and good precision.The method is safe,simple,efficient,low cost.It is suitable for the rapid analysis of a large number of lithium iron phosphate products,raw materials and intermediate products.

关 键 词：磷酸铁锂 微波消解 微型化实验 电位滴定 铁 

分 类 号：TQ126.39[化学工程—无机化工]