新型抗温耐盐高分子絮凝材料的合成及性能  

Synthesis and performances of a novel temperature-resistant and salt-tolerant polymeric flocculant

作　　者：梁学称 王海卫[1,2] 汪洋[3] 徐昆[1] 刘秀生[3] 王丕新[1] 

机构地区：[1]中国科学院长春应用化学研究所,吉林长春130022 [2]中国科学院大学研究生院,北京100049 [3]武汉材料保护研究所,湖北武汉430030

出　　处：《石油化工》2016年第4期446-452,共7页Petrochemical Technology

基　　金：中国科学院STS计划项目(KFJ-EW-STS-048);中国科学院科技合作专项资金项目(2013SYHZ0014;2014SYHZ0021);吉林省科技发展计划项目(20140204083GX;20140204064SF;20130204002GX)

摘　　要：以丙烯酰胺(AM)为非离子单体、丙烯酰氧乙基三甲基氯化铵(DAC)为阳离子单体、10-十一烯酸钠(UANa)为阴离子单体,通过胶束聚合的方式合成新型抗温耐盐疏水缔合两性离子型聚丙烯酰胺絮凝材料(AM/DAC/UANa共聚物),考察了AM/DAC/UANa共聚物的溶液性质和絮凝性能。实验结果表明,制备的AM/DAC/UANa共聚物具有优异的耐盐和耐温特性,在80℃下,试样黏度保留率达56.8%,远优于常规絮凝材料;AM/DAC/UANa共聚物在处理高温和高离子强度条件下1.0%(w)的膨润土模拟废水时,处理液的上清液光学透光率大于97%,在处理新疆油田蒸汽驱油返排液时,在80.0℃、絮凝剂用量为75.0 mg/L条件下,絮凝物在6.0 s内完全沉降,处理液的上清液光学透光率为99.0%。A novel temperature-resistant and salt-tolerant ampholytic hydrophobic modified polyacrylamide flocculant（AM/DAC/UANa copolymer） was synthesized through micellar polymerization from acrylamide（AM）,acryloyloxyethyltrimethyl ammonium chlori de（DAC） and sodium undecylenate（UANa）. Its solution properties and fl occulation performance were investigated. The AM/DAC/UANa copolymer exhibited higher viscosity retention ratio（56.8%） than those of conventional flocculating materials and owned excellent temperature-resistance and salt-tolerance. When bentonite（1.0%（w）） simulated waste-water with high ionic strength was treated with the AM/DAC/UANa copolymer at 80 ℃,the transmittance of the supernatant reached 97%. The AM/DAC/UANa copolymer was also employed to treat steam fl ooding waste-water with high salt content from Xinjiang oilf ield at 80.0 ℃,and the results indicated that,when the copolymer dosage was 75.0 mg/L,f locculate could completely precipitate in 6.0 s and the light transmittance of the supernatant reached 99.0%.

关 键 词：聚丙烯酰胺 丙烯酰氧乙基三甲基氯化铵 10-十一烯酸钠 疏水缔合 抗温耐盐絮凝材料 

分 类 号：X703.5[环境科学与工程—环境工程]