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D001大孔强酸型离子交换树脂回收硫脲金的研究表明,溶液中共存离子对金吸附率与其生成硫脲配离子的稳定性有关,吸附为吸热过程,吸附热ΔHθ=10.19kJ·mol-1,表明树脂骨架的位阻是影响吸附平衡的因素。流动法测定的动态饱和吸附容量为74.1mg/g·R,饱和吸附柱用NaOH-NaCN洗脱液,洗脱率>97%。
D001 macroporous strong acid ion exchange resin recovery of thiourea gold showed that the adsorption of gold ions in solution coexistence with the stability of its generated thiourea complex ion adsorption for the endothermic process, the adsorption heat ΔHθ = 10.19kJ · mol -1, indicating that the steric hindrance of the resin skeleton is a factor that affects the equilibrium of adsorption. The dynamic saturated adsorption capacity was 74.1 mg / g · R as determined by flow method, and the elution rate was> 97% with saturated NaOH-NaCl elution column.