| 摘要 |
FIELD: industrial organic synthesis. ^ SUBSTANCE: purification of industrial-grade resorcinol mainly comprises removal of phenol by way of disintegrating product at 40-60°C in inert gas or air flow to particle size 0.01-0.1 mm. Depending on pollution and content of phenol in starting resorcinol, disintegration is preceded by extraction of resorcinol with alcohol or ketone, or ether, or water, after which resorcinol is dried in inert gas flow at 20-40°C. Purified product has melting point 110°C and is characterized by phenol level not exceeding 0.001 wt %. ^ EFFECT: improved quality of product and simplified purification process. ^ 2 cl, 2 ex
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