Development of Methods for the Synthesis of Neopentyl Glycol by Hydrogenation of Hydroxypivaldehyde |
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Authors: | Edyta Monasterska Anna Chrobok Ewa Pankalla Agnieszka Siewniak |
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Institution: | 1.Department of Chemical Organic Technology and Petrochemistry, Ph.D. School, Silesian University of Technology, Akademicka 2A, 44-100 Gliwice, Poland; or ;2.Grupa Azoty Zakłady Azotowe Kędzierzyn, S.A., Mostowa 30A, 47-220 Kędzierzyn-Koźle, Poland;3.Department of Chemical Organic Technology and Petrochemistry, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland; |
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Abstract: | Neopentyl glycol (NPG) is a precursor for the manufacture of many valuable products of industrial importance such as polyester, polyurethane and alkyd resins, synthetic lubricants, hydraulic fluids, drugs, etc. The structure of NPG provides the resins with excellent hydrolytic stability, resistance to weather conditions, good flexibility-hardness balance, and outstanding functional properties. The paper presents a literature review on the development of methods for NPG preparation, focusing primarily on the synthesis of NPG by hydrogenation of hydroxypivaldehyde, which is obtained by the crossed aldol condensation of isobutyraldehyde and formaldehyde. Preparation of the substrates, catalysts, technical and apparatus solutions, and NPG purification were discussed. |
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Keywords: | neopentyl glycol hydroxypivaldehyde hydrogenation crossed aldol condensation |
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