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Process for the preparation of o-cresol and 2,6-xylenol

机译:邻甲酚和2,6-二甲苯酚的制备方法

摘要

0-cresol and 2,6-xylenol are prepared by flowing a gaseous stream of methanol and phenol in a molar ratio of phenol to methanol of from 1:1 to 1:9 through a fluidized bed of alumina particles at a temperature of from 200° to 400° C., said alumina being in the eta, gamma or chi crystallographic form, having a surface area of from 100 to 500 m.sup. 2 /g and an overall pore volume of from 0.3 to 0.6 ml/g and having been pre-treated with a stream of air or inert gas at a temperature of the order of 500° C. for at least 2 hours.P P CROSS REFERENCE TO RELATED APPLICATIONS
机译:通过使甲醇和苯酚的气态物流以苯酚与甲醇的摩尔比为1:1至1:9的方式在200℃的温度下流过氧化铝颗粒流化床,从而制得0-甲酚和2,6-二甲苯酚所述氧化铝为η,γ或chi结晶形式,其表面积为100至500msup。 2 / g的总孔体积为0.3-0.6 ml / g,并已在约500°C的温度下用空气或惰性气体流进行了至少2小时的预处理。

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