【摘要】 本文研究了萃淋树脂Cl-P507吸附分离钨钼的机理,测定了吸附过程的热焓值,表明树脂对钼的吸附为放热过程;确定了树脂吸附钼属阳离子交换过程,对钨的共吸附属氢键缔合机理,并确定了钼吸萃物的组成。更多还原

【Abstract】 The adsorption and separation mechanism of Mo and W by Cl-P507 extraction resin have been investigated. The adsorption reaction enthalpies of the resin at 25 to 58℃ were determined as （ΔH=19.7kJ/mol） （for Mo）, and （ΔH=4.18kJ/mol） （for W）. The composition of extracted complex is MoO₂L₂ （HL=P507） as determined by the saturation and slope method. Based on the UV spectra and IR speetra, the adsorption mechanism for Mo is proved to be a cation exchange reaction: MoO₂²⁺+2HL=MoO₂L₂+2H⁺. The co-adsorption of W is a hydrogen bond association process.更多还原