| 摘要 |
PURPOSE:To stably and efficiently separate both of o-cresol and 2,6-xylenol in high purity in producing the subject compound. CONSTITUTION:In feeding a distillation column with a liquor obtained by separating unreacted methanol, water and unreacted phenol from the reaction product of a vapor phase catalytic reaction between phenol and/or o-cresol and methanol in the presence of a metal oxide, o-cresol or phenol and o-cresol as overhead product (s) and 2,6-xylenol as bottom are drawn out, and o-cresol or phenol and a mixture of o-cresol with 2,6-xylenol are also distilled out from the side of the column, thus separating the objective ortho site-methylated phenolic compound. |
