爪形大分子CDC-SO的研究  

Claw Type Macromolecule of CDC-SO

作　　者：陈玲玲[1] 龙小柱[1] 高锦鹏[1] 王长松[1] 郭瓦力[1] 宗学军[1] 

机构地区：[1]沈阳化工大学,辽宁沈阳110142

出　　处：《化学工业与工程》2011年第1期17-23,共7页Chemical Industry and Engineering

基　　金：辽宁省教育厅高等学校科学研究基金项目(2009A591)

摘　　要：选用一缩二乙二醇、柠檬酸、硬脂酸和十八醇为原料,利用酯化反应设计并合成了新的低温流动改性剂:一缩二乙二醇-柠檬酸-硬脂酸-十八醇(CDC-SO)。通过单因素试验和正交试验得到了制备CDC-SO的最适宜工艺条件:n(CDC)∶n(硬脂酸)为1∶1.00;n(CDC-S)∶n(十八醇)为1∶4.0;催化剂用量(以总原料的酸醇总量计)为1.00%;溶剂用量(以总原料的酸醇总量计)为35%;酯化反应时间8 h。将合成的爪形大分子CDC-SO按2.5 mg/g的加剂量添加到沈阳石蜡化工有限公司生产的0#柴油中,冷滤点可降低5℃。With the diethylene glycol,citric acid,stearic acid and octadecyl alcohol as raw materials,using the esterification,a new low-temperature flow improver,citric acid-diethylene glycol-citric acid-stearic acid-octadecyl alcohol（CDC-SO）,was synthesized.Through the single factor and orthogonal experiments,the suitable conditions for preparing CDC-SO were obtained： The mole ratio of CDC to stearic acid was 1 ∶ 1.00,the mole ratio of CDC-S to octadecyl alcohol was 1 ∶ 4.0,the dosage of the catalyst was 1.00% based on the total mass of acid and alcohol of the total raw materials,the dosage of the solvent was 35% based on the total mass of acid and alcohol of the total raw materials,the time of the esterification reaction was 8 h.When CDC-SO was added with the dosage of 2.5 mg /g,in 0# diesel oil which was produced by the Shenyang Paraffin Wax Chemical Corporation,the cold filter plugging point could drop 5 ℃.

关 键 词：一缩二乙二醇 柠檬酸 爪形大分子 低温流动性改进剂 柴油 

分 类 号：TQ203.7[化学工程—有机化工]