METHOD FOR PREPARING NEOPENTYL GLYCOL

Provided is a method for preparing neopentyl glycol including: performing an aldol condensation reaction to obtain a first reaction product including hydroxypivaldehyde; bringing the first reaction product into contact with an extractant and distilling it to obtain an extract and a raffinate; supply...

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Bibliographic Details
Main Authors HA, Na Ro, CHO, Seung Sik, KIM, Sung Kyun, LEE, Sung Kyu
Format Patent
LanguageEnglish
French
German
Published 10.07.2024
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:Provided is a method for preparing neopentyl glycol including: performing an aldol condensation reaction to obtain a first reaction product including hydroxypivaldehyde; bringing the first reaction product into contact with an extractant and distilling it to obtain an extract and a raffinate; supplying the raffinate to a saponification reactor to be reduced to the catalyst and supplying the catalyst to an integrated recovery column; supplying the extract to an aldol purification column and distilling it to obtain a lower discharge stream and an upper discharge stream; supplying an upper discharge stream from the aldol purification column to the integrated recovery column and supplying a lower discharge stream from the aldol purification column to a hydrogenation reactor to obtain a second reaction product including neopentyl glycol; and obtaining neopentyl glycol from the second reaction product.
Bibliography:Application Number: EP20230863412