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铼在酸溶液中以阴离子ReO_4形式存在,而钼在酸溶液中以较大的聚合阴离子形式存在。可以用离于交换法,采用孔隙度小的阴离子交换树脂选择性地分离铼。本研究中利用了两种聚合形式的阴离子交换树脂孔隙度小的(г)和孔隙度大的(п)。п和г阴离子交换树脂的物理特性(括号内是г阴离子交换树脂的数据)如下孔隙容积
Rhenium is present in the form of an anion of ReO 4 in an acid solution, while molybdenum is present in a larger form in the acid solution as a polymeric anion. Rhenium can be selectively separated from anion exchange resins using a less porous anion exchange resin. In this study, two polymeric anion exchange resins were used to exploit the low porosity (г) and the high porosity (п). Physical properties of 阴 and 阴 anion exchange resins (data in brackets are 阴 anion exchange resin) as follows Pore volume