Method for recovering glycerin in production of pentanediol
The invention relates to a method for recovering glycerin in production of pentanediol, which comprises the following steps: catalyzing and hydrolyzing glyceryl borate with acid after the pentanediolis collected by distillation; cooling and crystallizing; separating boric acid, and recovering the gl...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention relates to a method for recovering glycerin in production of pentanediol, which comprises the following steps: catalyzing and hydrolyzing glyceryl borate with acid after the pentanediolis collected by distillation; cooling and crystallizing; separating boric acid, and recovering the glycerin. The invention solves the problem of recovery of the glycerin in residue after the product is distilled in the production of the pentanediol, lowers the production cost and reduces the pollution to the environment. |
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