| 摘要 |
A process for the preparation of polyglycerols which are low in cyclic components comprises reacting glycerol or diglycerol or a higher polyglycerol with epichlorohydrin at elevated temperatures; adding base corresponding to the organically bound chlorine content of the reaction mixture, at a temperature of 50 DEG -120 DEG C., to the unseparated reaction mixture obtained; desalting the resultant reaction mixture and recovering glycerol, diglycerol and higher polyglycerols by fractional distillation.
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