【摘要】 用流洗曲线解析法研究了UO₂²⁺在大孔离子交换树脂中的加速传质问题。比较了Ca²⁺、Mg²⁺、Mn²⁺、Co²⁺、Zn²⁺、Sc³⁺、Y³⁺和La³⁺八种阳离子和羟基羧酸、双配基羧酸和氨基酸的加速作用。更多还原

【Abstract】 The problem to accelerate the transfer of UO22+ in cationic exchange resin with macro-pore was studied by analysing the elution chromatography. The accelerate, effect exerted by eight sorts of cationic ions: Ca2+, Mg2+,Mn2+ ,Co2+,Zn2 + , Sc3+, Y3+ and La3+ and hydroxycarboxylic acid, dibasiccarboxylic acid and amino-aeid.was Studied and compared. It can be drawn that the parameter, τ, of material trasfer of UO22+ decreases with the increase of the radius of the cationic ions existed in the exchange resin. Sc3+ is an exception which is explanative. The apparent accelerate effect exerted by the dibasiccarboxylic acid was discovered and is ascribed to the formation of a neutral complex compound.更多还原