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测定了共振二胺树脂吸附铂的活化能E_a=2908kJ/mol、热焓△H=-17.23kJ/mol,自由能文化△G~(298)=-33.1kJ/mol.熵变△S~(298)=168J/mol·K。讨论了吸附行为。树脂吸附铂的摩尔比(功能基/Pt(Ⅳ)～2),树脂吸附铂的反应符合Freundlich等温吸附式。用硫脲-盐酸-乙醇水溶液能定量脱洗吸附在树脂上的Pt(Ⅳ),且树脂可再生使用。利用此树脂从含铂废催化剂中回收纯铂获初步成功。
The activation energy of platinum adsorbed by the resonance diamine resin was determined as E_a = 2908kJ / mol, enthalpy ΔH = -17.23kJ / mol, free energy culture △ G ~ (298) = -33.1kJ / mol, entropy change △ S ~ 298) = 168 J / mol · K. The adsorption behavior is discussed. Resin adsorption of platinum molar ratio (functional group / Pt (Ⅳ) ~ 2), the resin adsorption of platinum in line with Freundlich isothermal adsorption. Pt (IV) adsorbed on the resin can be quantitatively desorbed with a thiourea-hydrochloric acid-ethanol aqueous solution, and the resin can be regenerated. The use of this resin to recover platinum from platinum-containing catalysts was initially successful.