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钼与其他元素的分离,广泛应用的有效方法之一为色谱法。在离子交换色谱法中,通常所用的柱较长,淋洗剂的酸度或碱度较高和体积较大,而且只能同时分离数个共存元素。在有些方法中还使用氢氟酸,使操作和分离后的测定殊为不便。本文利用介质酸度对价数不同的金属离子存在状态的不同影响和控制酒石酸和柠檬酸的质子化和解离程度,以有效地选择金属络合物的形成,使钼或钨与其他金属离子的交换行为发生较大的差异而使其分离。实验部分仪器、试剂和实验方法见文献。
The separation of molybdenum and other elements, one of the most effective methods is the use of chromatography. In ion-exchange chromatography, the longer the column is usually used, the higher the acidity or alkalinity of the eluent is and the larger the volume is, and only several coexisting elements can be separated at the same time. Hydrofluoric acid is also used in some methods, making the handling and separation assays inconvenient. In this paper, the influence of medium acidity on the existence of metal ions with different valences and the control of the protonation and dissociation of tartaric acid and citric acid were investigated in order to select the formation of metal complexes effectively and exchange behavior of molybdenum or tungsten with other metal ions A big difference occurs to separate them. Experimental equipment, reagents and experimental methods found in the literature.