摘要
研究了P－950哌啶树脂吸附钯的动力学．结果表明，该树脂从氯化物溶液中吸附钯的动力学符合Boyd液膜扩散方程，吸附速率随盐酸浓度的增加而下降；当温度升高时吸附钯的分配比降低．测得的液膜扩散系数K＝1．34×10-2／s，吸附表现热焓△H＝-13.77kJ／mol，表明该树脂吸咐钯是放热反应.
The kinetics of palladium adsorption with a new type resin (P-950) was inves-tigated. The experimental results show that the adsorption of palladium-chloro complex on the resin is controlled by the rate of diffusion through liquid film. The adsorption rate of palladiumdecreased significantly with the increase of HCl concentration. The diffusion coefficient, K was1.34×10-2/s and the apparent heat effect of adsorption △H was 13.77 kJ/mol. The distri-bution ratio of palladium adsorption, D, reduced with the increase of temperature, indicatingthat the adsorption of palladium on the resin was exothermal.
出处
《化工冶金》
CSCD
北大核心
1996年第4期300-303,共4页
基金
国家自然科学基金
关键词
离子交换树脂
钯
动力学
哌啶树脂
Anion exchange resin, Palladium, Adsorption kinetics
