Method for producing ditrimethylolpropane

In the method of producing ditrimethylolpropane of the present invention, the distillation still residue obtained in the production of trimethylolpropane is subjected to crystallizing treatment while strictly regulating the amount of organic solvent to be used, the crystallization temperature and th...

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Bibliographic Details
Main Authors IWAMOTO ATSUSHI, KUZUHARA IKUTARO
Format Patent
LanguageChinese
English
Published 06.02.2008
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:In the method of producing ditrimethylolpropane of the present invention, the distillation still residue obtained in the production of trimethylolpropane is subjected to crystallizing treatment while strictly regulating the amount of organic solvent to be used, the crystallization temperature and the crystallization time within the specific ranges. With the method of the present invention, a highly pure di-TMP is obtained only by a single operation of the crystallization.
Bibliography:Application Number: CN200410049023