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本文报告用离子交换法分离钛、镧。钛和镧从含过氧化氢的硫酸溶液中吸附到国产阳离子交换树脂柱,用草酸淋洗钛,继在过氧化氢和草酸的存在下用铜铁试剂沉淀而测定之。镧用盐酸淋洗后依常法测定。此法用于分离并测定1500∶1至1∶10的钛镧混合物,得到满意的结果。
This paper reports the separation of titanium and lanthanum by ion exchange. Titanium and lanthanum are adsorbed to a homemade cation exchange resin column from a hydrogen peroxide containing sulfuric acid solution and the titanium is rinsed with oxalic acid followed by precipitation with a copper and iron reagent in the presence of hydrogen peroxide and oxalic acid. Lanthanum hydrochloric acid rinse according to the usual method. This method was used to separate and determine a mixture of titanium and lanthanum from 1500: 1 to 1:10, yielding satisfactory results.