铁矿石中Fe(Ⅱ)、Fe(Ⅲ)含量的测定及条件研究  

The Content Determination and Condition Research of the Fe(Ⅱ)、Fe(Ⅲ)in the Iron Ore

作　　者：王瑞云[1] 

机构地区：[1]酒钢集团宏兴股份公司镜铁山矿,甘肃嘉峪关735100

出　　处：《酒钢科技》2015年第1期14-17,共4页

摘　　要：铁矿石经浓盐酸和少量的Sn Cl2溶液加热到45℃溶解后,用Sn Cl2-Ti Cl3还原滴定Fe（Ⅲ）,使Fe（Ⅲ）还原为Fe（Ⅱ）,再以K2Cr2O7滴定全铁含量。本方法对实验操作温度,试样溶解酸的选择有一定的要求,宜选用非氧化性强酸在30-60℃溶解矿样。After the ironore is dissolved by concentrated hydrochloric acid and a small amount of SnCl2 solution at 45℃, and is reduced by SnCl2-TiCl3 solution, the Fe（ Ⅲ ）is reduced to Fe （ Ⅱ）which is then titrated by K2Cr2O7 solution to determine the total iron content. Using the method has certain requirements for the operating temperature, the acid, thus, it＇s better to dissolve ore sample by non oxidizing acid at 30-60℃.

关 键 词：铁矿石 SnCl2-TiCl3-K2Cr2O7滴定法 Fe(Ⅱ) Fe(Ⅲ) 

分 类 号：O614.811[理学—无机化学]