松香基大孔吸附树脂对盐酸川芎嗪吸附性能的研究  

Adsorption Properties of Ligustrazine Hydrochloride onto Rosin-based Macroporous Adsorption Resin

作　　者：李鹏飞[1,2] 穆彩花[1] 雷福厚 卢建芳[1,2] 刘祖广[1,2] 

机构地区：[1]广西民族大学化学与化工学院,广西南宁530006 [2]广西林产化学与工程重点实验室,广西南宁530006

出　　处：《林产化学与工业》2013年第1期74-80,共7页Chemistry and Industry of Forest Products

基　　金：国家自然科学基金资助项目(30960306);广西科学研究与技术开发基金(桂科攻08395003-9);广西民族大学科研基金项目(2011MDQN36)

摘　　要：以松香基大孔吸附树脂为吸附剂,通过静态吸附实验,研究了其对盐酸川芎嗪的吸附动力学及热力学。结果表明,盐酸川芎嗪在松香基大孔吸附树脂上的吸附速率随着时间的延长而逐渐降低,该吸附过程符合二级动力学方程,3.5 h后达到吸附平衡,属于慢吸附过程,该过程受液膜扩散及颗粒内扩散的共同影响;盐酸川芎嗪在松香基大孔吸附树脂上的吸附符合Langmuir方程,为'优惠吸附',吸附容易实现,在313 K时,最大吸附量为144.5 mg/g;吸附热力学研究表明,吸附ΔH>0、ΔS>0,ΔG随着吸附温度的升高由正值变为负值,说明该吸附为自发的吸热过程。The adsorption kinetics and thermodynamics of the rosin-based macroporous adsorption resin which was used as an adsorbent for ligustrazine hydrochloride was studied through static adsorption experiments. The results showed that the adsorption rates of ligustrazine hydrochloride onto rosin-based macroporous adsorption resin gradually reduced with time, and followed the second-order kinetics, and basically reached equilibrium after 3.5 hours. The adsorption process belongs to slow adsorption, and it is effected by film diffusion and intra-particle diffusion. The equilibrium for the adsorption of ligustrazine hydrochloride from aqueous solutions by rosin-based macroporous adsorption resin could be fitted to Langmuir-type of isotherm equation and maximum sorption was about 144.5 mg/g when the optimum temperature was 313 K. The studies on the thermodynamics showed that the adsorption △H 〉 0, △S 〉 0, the change in free energy of adsorption decreases from positive to negative with the increment of temperature, the adsorption process is a spontaneous and endothermic one.

关 键 词：松香基大孔吸附树脂 盐酸川芎嗪 吸附 动力学 热力学 

分 类 号：TQ351[化学工程]