Process for the high pressure methylation of 2,6-xylenol

Details Process for the high pressure methylation of 2,6-xylenol Process for the high pressure methylation of 2,6-xylenol

1977-12-05

1978-11-21

Thomas, Jr., James O.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C07C 3712

Patent

active

041267508

ABSTRACT:
High pressure methylation of 2,6-xylenol to produce 2,3,6-trimethylphenol is accomplished by maintaining the methanol/2,6-xylenol feed at temperature and pressures sufficient to keep the feed liquid in a reactor head then forcing the feed through orifices, expanding the feed into a mixed vapor liquid phase, the feed after expansion being in the range of reaction conditions of pressure and temperature while in the presence of the catalyst where the reaction takes place. The process avoids the current problems of uneven feed mixtures and catalyst tube plugging.

REFERENCES:
patent: 3867466 (1975-02-01), Endou et al.
patent: 3979464 (1976-09-01), Leach

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