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 ℃.
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,V28(1): 17-17
2011, Vol. 28 
