摘要
以甲基丙烯酰氧乙基三甲基氯化铵、乙烯基吡咯烷酮、衣康酸为原料,过硫酸铵/亚硫酸氢钠为复合引发剂,通过反相乳液聚合法合成了两性共聚物P(DMC-NVP-IA)。较佳的合成条件为:反应温度为50℃,油水体积比为1.2∶1,乳化剂质量分数为8.0%,单体质量分数为45%,此时产率达70.1%,特性黏度为656 m L/g。并通过FTIR对产物的分子结构进行了表征。利用该共聚物对陕北地区延长石油的油田废水进行絮凝实验,当P(DMC-NVP-IA)质量浓度为140 mg/L,废水p H为7,絮凝温度为50℃时,油田废水油的去除率为78.5%,COD去除率为71.6%,透光率为80.0%。
An amphoteric copolymer,P（ DMC-NVP-IA）,is synthesized by inverse emulsion copolymerization with methacryloxyethyltrimethyl ammonium chloride（ DMC）,N-vinyl pyrrolidone（ NVP） and itaconic acid（ IA） as monomers and ammonium persulfate-sodium bisulfate as initiator. The yield and specific viscosity of P（ DMC-NVP-IA） are 70. 1%and 656 m L / g,respectively,under the following condidtions： 50℃ of reaction temperature,1. 2 ∶ 1 of organic solvent /water ratio,8. 0% mass fraction of emulsifier and 45% mass fraction of monomer. The chemical structure of P（ DMCNVP-IA） is characterized by FTIR. The fluocculation performance of P（ DMC-NVP-IA） is also evaluated by treating oil field wastewater of Yanchang Petroleum in northern Shaanxi. The removal rates of oil and COD of the treated wastewater are 78. 5% and 71. 6% with light transmittance of 80. 0%,when the amount of P（ DMC-NVP-IA） is 140 mg / L,p H value of wastewater is 7 and the flocculation temperature is 50℃.
出处
《现代化工》
CAS
CSCD
北大核心
2016年第4期76-80,共5页
Modern Chemical Industry
基金
陕西省科技统筹创新工程计划项目(2014KTCL01-11)
陕西省科学技术研究发展项目(2013K11-19)
关键词
甲基丙烯酰氧乙基三甲基氯化铵
乙烯基吡咯烷酮
反相乳液聚合
絮凝剂
水处理技术
methacryloxyethyltrimethyl ammonium chloride（DMC）
N-vinyl pyrrolidone（NVP）
inverse emulsion copolymerization
flocculation agent
wate treatment technology
