弱碱性树脂处理β-萘磺酸废水的吸附分离热力学性能  

ADSORPTION SEPARATION OF β -NAPHTHALENESULPHONIC ACID WASTEWATER ON WEAKLY BASIC RESIN AND THERMODYNAMICS

作　　者：李长海[1] 石宏仁[1] 唐洪宇[1] 

机构地区：[1]长春工业大学化工学院,吉林长春130012

出　　处：《化工学报》2004年第7期1117-1123,共7页CIESC Journal

基　　金：吉林省科学技术发展基金资助项目 (No 990 3 3 7)~~

摘　　要：研究了 β 萘磺酸废水中 β 萘磺酸、H2 SO4、H2 SO3 单组分吸附平衡 ,并以Langmuir、Freundlich模型对其进行模拟 .吸附过程的热力学计算及分析结果表明 ,吸附过程为放热的化学吸附过程 ,吸附量顺序为H2 SO4>NSA >H2 SO3 ,推动力大小顺序为H2 SO4>NSA >H2 SO3 ,吸附过程熵增加 .以D30 1R弱碱性树脂为吸附剂 ,可有效地实现三者的分离 .Equilibrium of single component adsorption for β-naphthalenesulphonic acid, sulfuric acid and sulfurous acid from β-naphthalenesulphonic acid wastewater was studied, and the single-solute adsorption data were fitted to the Langmuir and Freundlich models. It could be found from thermodynamic calculation and analysis results that adsorption was a chemical adsorption, adsorption affinity of various acids was H2SO4>NSA H2SO3, and adsorption force between resin and acids was H2SO4>NSA H2SO3 and entropy was increasing in the course of adsorption. The separation operation could be effectively carried out for these acids based on weakly basic resin D301R.

关 键 词：吸附 平衡 弱碱性树脂 

分 类 号：TQ028.3[化学工程]