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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Main Authors | , |
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Format | Patent |
Language | Chinese English |
Published |
06.02.2008
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Subjects | |
Online Access | Get full text |
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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. |
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Bibliography: | Application Number: CN200410049023 |