以弱碱性树脂吸附2-萘磺酸/硫酸混合液相平衡研究  

ADSORPTION OF B- NAPHTHALENESULFONIC ACID/SULFURIC ACID FROM WATER BY WEAKLY BASIC RESIN

作　　者：李长海[1] 史鹏飞[1] 

机构地区：[1]哈尔滨工业大学应用化学系,哈尔滨150001

出　　处：《离子交换与吸附》2002年第6期508-515,共8页Ion Exchange and Adsorption

基　　金：吉林省科学技术发展基金资助项目 (No. 990337)

摘　　要：研究考察了-萘磺酸 (NSA) 和硫酸在弱碱性D301R树脂上的单组分、双组分吸附行为。研究表明,硫酸在D301R树脂上的吸附容量远大于NSA。分别采用Langmuir和Freundlich模型对单组分试验数据进行了拟合。以多组分吸附IAST模型和Langmuir、Freundlich模型预测了硫酸、NSA在弱碱性D301R树脂上竞争吸附相平衡,模型与试验结果吻合的较好,该模型可较准确地预测双组分的竞争吸附行为。Single-and bissolute competitive adsorption were carried out to investigate the adsorption behavior of β-Naphthalenesulfonic acid(NSA) and sulfuric acid, from water at 25℃ onto Weakly Basic D301R. Adsorption affinity of sulfuric acid on D301Rwas found to be much higher than that of NSA. The single-solute adsorption data were fitted to the Langmuir model and the Freundlich adsorption models. The multicomponent adsorption IAST model coupled with the single-solute adsorption models was used to predict the bissolute competitive adsorption equilibria. The IAST coupled with the Langmuir and the Freundlich models for sulfuric acid and NSA, respectively, yielded the most favorable representation of the bisolute competitive adsorption behavior.

关 键 词：硫酸 混合液 相平衡 吸附 弱碱性树脂 Β-萘磺酸 染料中间体 生产 废液处理 

分 类 号：X788[环境科学与工程—环境工程] X703