高沸醇木质素吸附苯酚研究  

Study on the Adsorption of Phenol by High Boiling Solvent Lignin

作　　者：林超[1] 刘英强[1] 黎先发[1] 

机构地区：[1]西南科技大学生命科学与工程学院,绵阳621000

出　　处：《四川化工》2009年第5期16-19,共4页Sichuan Chemical Industry

摘　　要：研究了搅拌时间、苯酚初始浓度、溶液pH值、温度等因素对高沸醇木质素吸附苯酚吸附性能的影响,并与工业碱木质素对苯酚吸附性能进行了比较。结果表明:高沸醇木质素对苯酚的吸附随时间的延长在25min左右趋于稳定,苯酚初始浓度越高,吸附量越大;随pH值升高,吸附量降低,升高温度对吸附苯酚不利。在初始搅拌阶段,高沸醇木质素与碱木质素对苯酚的吸附性能差异不明显,但随吸附时间延长,高沸醇木质素对苯酚的吸附能力与碱木质素相比明显提高;在相同苯酚初始浓度下,随苯酚初始浓度的提高,高沸醇木质素对苯酚的吸附量比碱木质素的吸附量约高一倍。The stirring time, initial phenol concentration, solution pH, temperature on adsorption properties of High boiling solvent （HBS） lignin for phenol were Studied, and with the adsorption properties of the industrial alkali lignin for phenol are compared. The results indicate that HBS lignin adsorption for phenol with time become stable in about 25rain,The higher the initial concentration for phenol, the greater the adsorption capacity, With higher pH, lower adsorption. Elevated temperature on the adsorption of phenol were disadvantage. Stired in the initial stage, the HBS lignin and alkali lignin adsorb phenol no obvious differences in performance. However, with the extension of adsorption time, HBS lignin had higher adsorption capacity than.alkali lignin. In the same initial concentration of phenol, with the increase in initial concentration of phenol, HBS lignin adsorbed phenol more than alkali lignin about double.

关 键 词：高沸醇木质素 苯酚 吸附 

分 类 号：TQ028.15[化学工程]