METHOD FOR PRODUCING HIGH-PURITY 1,3-BUTYLENE GLYCOL
A production method of high-purity 1,3-butylene glycol includinga step of performing a heat treatment for an initial feed liquid containing 1,3-butylene glycol anda step of removing low-boiling components that are contained in any one or more of a treated liquid and a treated vapor after the heat tr...
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| Format: | Patent |
| Sprache: | eng ; fre ; ger |
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| Zusammenfassung: | A production method of high-purity 1,3-butylene glycol includinga step of performing a heat treatment for an initial feed liquid containing 1,3-butylene glycol anda step of removing low-boiling components that are contained in any one or more of a treated liquid and a treated vapor after the heat treatment by distillation,in which a content of a base in the initial feed liquid in the step of performing the heat treatment is less than 0.2 mass%. |
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