Study on Synthesis of Ester of Citric Acid and Palmityl Alcohol

Abstract:

Esters of Citric acid and palmityl alcohol were synthesized by esterification reaction under catalysis of cation exchange resin and P-toluene sulfonic acid respectively. The effects of amount of catalyst, ratio of raw materials, reaction time and temperature on the synthesis reaction were investigated . The experimental results showed that optimum of process conditions were 1:1~1:1.5 molar ratio of citric acid and palmityl alcohol, reaction temperature of 130~140°C, reaction time of 2 h. Conversion of palmityl alcohol were all more than 90% under 0.3% dosage using p-toluene sulfonic acid as the catalyst, or 0.5% dosage using 721 cation exchange resin with sulfonic acid type as catalyst. The synthesized product had good surface activity.

• Periodical: Advanced Materials Research (Volume 900)
• Pages: 361-364
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.900.361
• Online since: February 2014
• Authors: Xiao Hui Wang, Xi Hua Du, Li Min Dong
• Keywords: Ester of Citric Acid and Palmityl Alcohol, Food Additive, Synthesis

References

[1] D. Jevaughan. Oil chemistry and technology (Light Industry Publications, Beijing 1989).

[2] F. A. Kummerow, J. E. Kinsella, E.P. Patent 334, 482. (1986).

[3] C. M. Gooding, R. H. Neal, and H. W. Vahlteich, U.S. Patent 2, 518, 678(1950).

[4] Shanghai Ligh Ind Chem Com. Chemical Commodity Inspection Manual; (Chemical Industry Publications, Beijing 1989).

[5] F. H. Wang, B. Chen and X. X. Pan. Stearic acid and fatty acid derivatives processes (Light Industry Publications, Beijing 1991).