爪形大分子CDC-SO的研究

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 ℃。

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	陈玲玲
	龙小柱
	高锦鹏
	王长松
	郭瓦力
	宗学军

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

Abstract： 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 ℃.

Keywords： diethyleneglycol citric acid claw macromolecule low-temperate flow improver diesel fuel

引用本文:

陈玲玲, 龙小柱, 高锦鹏, 王长松, 郭瓦力, 宗学军.爪形大分子CDC-SO的研究[J]. 化学工业与工程, 2011,28(1): 17-17

CHEN Ling-Ling, LONG Xiao-Zhu, GAO Jin-Peng, WANG Chang-Song, GUO Wa-Li, ZONG Xue-Jun.Claw Type Macromolecule of CDC-SO[J]. Chemcial Industry and Engineering, 2011,28(1): 17-17