A highly purified 1-aminopropanediol-2,3 and a method for the purification thereof
1-aminopropanediol-2,3 containing 2-aminopropanediol-1,3 of less than 0.30 % by weight can be prepared by the present purification process, which comprises distilling a 1-aminopropanediol-2,3 containing at least 0.3 % of 2-aminopropanediol-1,3 based on the weight of 1-aminopropanediol-2,3 with a dis...
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| Format: | Patent |
| Sprache: | eng ; fre ; ger |
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| Zusammenfassung: | 1-aminopropanediol-2,3 containing 2-aminopropanediol-1,3 of less than 0.30 % by weight can be prepared by the present purification process, which comprises distilling a 1-aminopropanediol-2,3 containing at least 0.3 % of 2-aminopropanediol-1,3 based on the weight of 1-aminopropanediol-2,3 with a distillation column, said distillation column having low pressure loss. |
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