| 摘要 |
An improvement in a process for the isomerization of cresols may be obtained by effecting the isomerization reaction of a cresol in the presence of a phosphorous containing crystalline aluminosilicate zeolite catalyst. The added phosphorous provides stability and longer life to the catalyst as well as more stable selectivity to the desired isomers. The isomerization reaction is effected at temperatures ranging from about 350 DEG C. to about 500 DEG C., pressures ranging from about 1 to about 60 atmospheres, a Liquid Hourly Space Velocity that ranges from 1 to about 5 hours-1, with the abovementioned catalyst containing from about 1% to about 8% by weight phosphorous.
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