Preparation of 2,2-Dimethylol Propionic Acid

Jian Wei Zhang; Ji Wei Liu

doi:10.4028/www.scientific.net/AMR.937.51

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 937Preparation of 2,2-Dimethylol Propionic Acid

Preparation of 2,2-Dimethylol Propionic Acid

Abstract:

2,2-Dimethylol propionic acid was synthesized by two steps using sodium hydroxide as the catalyst in this article. The influence of various factors on the yield of 2,2-Dimethylol propionic acid were studied by single factor experiment that included condensation temperature, condensation time, propionaldehyde-formaldehyde ratioetc.. On the basis of this foundation, the orthogonal design was carried out in order to confirm the preferable synthesis conditions of 2,2-Dimethylolpropanoic. The results show that the optimal synthesis conditions are as follows: condensation time is 8 hours, condensation temperature is 35°C, propionaldehyde-formaldehyde ratio is 2.2, sodium hydroxide-formaldehyde ratio is 0.03, the oxidation temperature is 90°C, oxidation time is 6 hours. The product yield can reach to 71.35% under these reaction conditions that is higher than the value reported in references.

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Periodical:

Advanced Materials Research (Volume 937)

Pages:

51-57

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.937.51

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Online since:

May 2014

Authors:

Jian Wei Zhang*, Ji Wei Liu

Keywords:

2,2-Dimethylol Propionic Acid, Formaldehyde, Orthogonal Design, Propionaldehyde

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