PURIFYING PHENOLS FROM COAL LIQUEFACTION
1. A process for the treatment of crude phenol which has been recovered in accordance with the phenoraffin process from phenol-containing fractions from the liquefaction of coal, characterized in that the phenols are separated by distillation from high-boiling accompanying substances, reacted with d...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | 1. A process for the treatment of crude phenol which has been recovered in accordance with the phenoraffin process from phenol-containing fractions from the liquefaction of coal, characterized in that the phenols are separated by distillation from high-boiling accompanying substances, reacted with diluted acid and subsequently subjected to a fractionated distillation and the phenol and o-cresol fractions obtained are subjected to crystallization. |
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