Purification of p-phenylphenol

Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal

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C07C 3744

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active

039937003

ABSTRACT:
A purified p-phenylphenol is obtained by reduction of the m-phenylphenol percentage from crude or technical grade p-phenylphenol by contacting the mixture with a molar quantity of caustic less than heretofore employed, whereby the m-phenylphenol preferentially reacts to form sodium m-phenylphenate while the p-phenylphenol ends up as a solid in substantially pure form. The amount of the caustic is from about 0.5 to about 10 moles of caustic per mole of m-phenylphenol present. Resin grade p-phenylphenol, i.e., containing less than 2% m-phenylphenol can be obtained from a starting material containing up to 30% m-phenylphenol.

REFERENCES:
patent: 1996744 (1935-04-01), Britton
patent: 2129908 (1938-09-01), Britton

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