太原理工大学学报2018，Vol.49Issue(2)：179-183,5.DOI:10.16355/j.cnki.issn1007-9432tyut.2018.02.001
PEBA渗透汽化膜用于分离回收稀水溶液中邻甲酚
Recovery of o-cresol from Dilute Aqueous Solution Using PEBA Pervaporation Membrane
摘要
Abstract
In this paper,PEBA2533 membrane was applied to separate the o-cresol from dilute aqueous solution by pervaporation,and the high-purity o-cresol crystal was recovered by pervapo-ration-fractional condensation process.The surface and cross-section morphology of PEBA2533 membrane were characterized by scanning electron microscopy.The adsorption performance of PEBA2533 membrane toward o-cresol was investigated by the degree of swelling.The separation performance of PEBA2533 membrane for o-cresol was investigated at different feed concentrations and temperatures.The results show that o-cresol flux increased with the increase of feed concen-tration,and the separation factor was in a relative higher range (from 59 to 105)under the feed concentration range from 2 000 to 7 000 mg/L.With the increase of feed temperature,the fluxes of cresol and water increased obviously,and the separation factor also increased gradually.When feed concentration and temperature was 7 000 mg/L and 70 ℃,respactively,o-cresol crystal flux was up to 295.9 g/(m2·h),and the purity was 99.9%.关键词
渗透汽化/邻甲酚晶体/分级冷凝/PEBA2533膜Key words
pervaporation/o-cresol crystal/fractional condensation/PEBA2533 membrane分类
化学化工引用本文复制引用
李春成,刘长林,郝晓刚..PEBA渗透汽化膜用于分离回收稀水溶液中邻甲酚[J].太原理工大学学报,2018,49(2):179-183,5.基金项目
山西省回国留学人员科研资助项目(2013051) （2013051）
