锡矿中二氧化钛的测定

Determination of Titanium Dioxide Content in Tin ore

采用过氧化钠高温熔解样品后,在酸度pH=1.5的溶液中,利用硫化氢使四氯化锡转换成二硫化锡沉淀,沉淀过滤分离后,使用三氯化铁容量法测定锡矿中的二氧化钛含量。本方法可测定锡矿中含量较高的二氧化钛,回收率可达98%以上。

High-temperature melting the sample using sodium peroxide,in the solution of acidity is pH=1.5,the use of hydrogen sulfide into the tin tetrachloride precipitated tin disulfide,after filtration tin disulfide,use ferric chloride volumetric method to determine the titanium dioxide content in tin ore.This method can determine the high content of titanium dioxide content in tin ore,the recovery of titanium dioxide can over 98 %.