Process for the preparation of neopentyl glycol
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United States of America Patent
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Apr 8, 2003
Grant Date -
N/A
app pub date -
Aug 22, 2000
filing date -
Dec 30, 1997
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Abstract
The invention relates to a process for the preparation of neopentyl glycol by hydrogenation of hydroxypivaldehyde (HPA) in the presence of hydrogen and a hydrogenation catalyst at an elevated temperature. According to the invention, hydroxypivaldehyde is hydrogenated in the presence of a nickel-containing catalyst and at a temperature below 100.degree. C. in a liquid phase containing a solvent an amount of 1-70% by weight and water in an amount of 0-15% by weight. Aliphatic alcohol or ether or a mixture thereof is used as solvent.
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