阳离子表面活性剂改性树脂及处理轧钢乳化含油废水的性能  

Preparation of the modified resin by cationic surfactants and treatment of steel rolling emulsified oily wastewater

作　　者：李方文[1] 贾海武[1] 马淞江[1] 付美玲[1] 吴湘江[1] 彭喜[1] 丁黎玲[1] 

机构地区：[1]湖南科技大学化学化工学院,湖南湘潭411201

出　　处：《功能材料》2011年第B02期50-53,共4页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(50978098);湖南省教育厅资助项目(09C387);湖南省-湘潭市自然科学联合基金资助项目(09JJ9004)

摘　　要：研究了十六烷基三甲基溴化铵(CTAB)改性001×7苯乙烯强酸性阳离子树脂及改性树脂对轧钢乳化油废水的除油和除浊性能。通过正交实验优化了改性工艺参数,并用红外光谱(FT-IR)、热失重(TG)、扫描电镜(SEM)等测试手段对改性树脂进行了表征。结果表明,最佳改性工艺参数为m(树脂)/m(CTAB)=4∶1(质量比)、温度为60℃、反应时间为5h和反应溶剂为二次蒸馏水,在此条件下CTAB接枝量达到0.17mmol/g;改性树脂在1487.69cm-1处出现了由季铵基团烷基C H键弯曲变形振动引起的特征吸收峰、改性树脂在250℃前的失重率低于未改性树脂,表明树脂改性后其亲油性增强和改性后大部分树脂破裂出现空隙导致其热稳定性降低,表明CTAB已成功接枝到树脂上。在滤柱运行时间内,改性树脂的除油率和除浊率均达98%以上,比未改性树脂分别提高了31.7%和8.0%,且高去除率能保持稳定。Modification of strongly acidic styrene type cation exchange resin （001× 7） by cetytrimethyl-ammonium bromide and its oil and turbidity removal performances from real steel rolling oily wastewater were investigated. The orthogonal experiment was used to optimize the modification process. At the same time, the original and modified resin was characterized by FT-IR, TG and SEM. The results showed that the best modification process parameters included mass ratio between resin and CTAB （4 ： 1）, temperature （60℃）, reaction time （5h） and reaction solvent （secondary distilled water）. The grafting quantity reached 0. 17mmol/g at the best modified process. Proofs of CTAB successful grafting to resin included the characteristic adsorption peak from modified resin at 1487.69cm^-1 that was brought out by bending and deforming vibration of C-H bond from quaternary ammonium group, lower weigh loss rate of R-CTAB than that of R-H before 250℃, breakdown and void from R-CTAB that were answerable to heat stability reduce. Compared with R-H, the oil and turbidly removal rate of R-CTAB were all above 98%, which increased by 31.7% and 8.0% respectively. Fatherly, the higher removal rate could keep constant at operation period.

关 键 词：十六烷基三甲基溴化铵(CTAB) 001×7聚苯乙烯强酸性阳离子树脂 表征 轧钢乳化含油废水 除油率 除浊率 

分 类 号：TQ013.1[化学工程] O647.1[理学—物理化学]