Method for preparing sugar alcohol and coproducing white carbon black
The invention relates to a method for preparing sugar alcohol and coproducing white carbon black. The method comprises the following steps: mixing raw sugar and a water-soluble strong alkali solution;adding silicon and a catalyst; removing oxygen and stirring and reacting at 100 to 200 DEG C under a...
Gespeichert in:
| Hauptverfasser: | , |
|---|---|
| Format: | Patent |
| Sprache: | chi ; eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| Zusammenfassung: | The invention relates to a method for preparing sugar alcohol and coproducing white carbon black. The method comprises the following steps: mixing raw sugar and a water-soluble strong alkali solution;adding silicon and a catalyst; removing oxygen and stirring and reacting at 100 to 200 DEG C under a sealed state; filtering to obtain filtrate C and filtering residue D; adding acid into the filtrate C and regulating the pH (Potential of Hydrogen); stirring and reacting, and filtering to obtain filtrate E and a solid F; drying the solid F to obtain the white carbon black; carrying out electrodialysis desalination on the filtrate E to obtain a sugar alcohol solution G; concentrating, spraying and drying the sugar alcohol solution G to obtain the sugar alcohol. According to the method providedby the invention, hydrogen gas generated through reaction of silicon and strong alkali is used as a reducing agent, and hydrogen gas does not need to be additionally introduced or other reducing agents do not need to be addit |
|---|