Removal of guaiacol from cresylic acid feedstreams by heating wi

Details Removal of guaiacol from cresylic acid feedstreams by heating wi Removal of guaiacol from cresylic acid feedstreams by heating wi

1992-06-18

1993-01-05

Lone, Werren B.

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

Organic compounds

Oxygen containing

568749, 568750, 568753, C07C 3770, C07C 3774

Patent

active

051772698

ABSTRACT:
A process is described for the removal of guaiacol from naturally occurring cresylic acid feed by heating the feed with a strong acid, particularly hydrochloric acid or sulfuric acid, to produce a purified cresylic acid product essentially free of guaiacol and other methoxy aromatic compounds without significant loss of cresylic acid product.

REFERENCES:
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patent: 2807654 (1957-09-01), Grimmett et al.
patent: 4420642 (1983-12-01), Filipasic et al.
patent: 4447657 (1984-05-01), Firth et al.
patent: 4473713 (1984-09-01), Ratton
J. Lawson and M. Klein, "Influence of Water on Guaiacol Pyrolysis", Ind Eng. Chem. Fundam. 1985, 24:203-208.
R. Ceylan and J. Bredenberg, "Hydrogenolysis and Hydrocracking of the Carbon-Oxygen Bond, 2, Thermal Cleavage of the Carbon-Oxygen Bond in Guaiacol", Fuel, 1982, 61:377.
A. Vuori and J. Bredenberg, "Hydrogenolysis and Hydrocracking of the Carbon-Oxygen Bond, 4, Thermal and Catalytic Hydrogenolysis of 4-Propylguaiacol", Holzforschung, 1984, 38:133-140.

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