钛精矿经高浓度盐酸分解后,酸解液中 TiO_2含量高达100～130g/1以上。对于酸解液中高含量钛的测定,多采用经典的铝片还原,硫酸高铁铵容量法。但该法操作手续繁锁,分析周期长,不能及时满足试验工作的要求。我们采用过氧化氢比色法测定钛,在5分钟之内可以报出分析结果,方法准确、可靠,能及时满足工艺试验的要求。一方法要点四价钛在硫酸介质中与过氧化氢生成黄色络合物可借此进行测定。络合物在/20nm 处有吸收峰,在100毫升溶液中 After the high concentration hydrochloric acid is decomposed, the content of TiO_2 in the acid solution is as high as above 100 ~ 130g / 1. For the determination of high concentrations of titanium in the acid solution, use more classic aluminum reduction, ammonium ferric sulfate capacity method. However, the method of complicated operation procedures, the analysis cycle is long, can not meet the requirements of experimental work. We use hydrogen peroxide colorimetric determination of titanium, within 5 minutes can report the results of the analysis, the method is accurate and reliable, can meet the requirements of process test in time. A method of the point of tetravalent titanium in sulfuric acid medium with hydrogen peroxide generated yellow complex can take this determination. The complex has an absorption at / 20 nm in 100 ml of solution