Process for purification of tetramethylbiphenol by entrainment s

Details Process for purification of tetramethylbiphenol by entrainment s Process for purification of tetramethylbiphenol by entrainment s

1977-09-19

1979-05-29

Morgenstern, Norman

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

Organic compounds

Oxygen containing

C07C 3722

Patent

active

041567889

ABSTRACT:
Substantially pure tetramethylbiphenol may be recovered from a reaction product obtained by the oxidative coupling of xylenol by vaporizing the reaction product and subliming substantially pure tetramethylbiphenol from the vapor.

REFERENCES:
patent: 3812193 (1974-05-01), Randell et al.
patent: 4067890 (1978-01-01), Rutledge
patent: 4070383 (1978-01-01), Rutledge
Perry et al., "Chem. Eng. Handbook", 4th Edition, pp. 17-23-17-26, (1963).

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