Process for separating para-cresol from a mixture of methylated

Details Process for separating para-cresol from a mixture of methylated Process for separating para-cresol from a mixture of methylated

1979-06-29

1981-05-12

Lone, Werren B.

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

Organic compounds

Oxygen containing

C07C 3768

Patent

active

042673895

ABSTRACT:
Para-cresol is separated from a mixture comprising meta-cresol and various other methylated and ethylated phenols by preferentially complexing the para-cresol with one or more anhydrous or dehydrated inorganic salts selected from the group consisting of calcium bromide, lithium bromide, manganese bromide and magnesium chloride. The anhydrous inorganic salt is added to the phenolic mixture in an amount to give a mole ratio of salt to para-cresol in the mixture in the range of about 0.5 mole to one to about 1.5 mole to one. The para-cresol and salt form a complex and the complex is removed from the mixture of methylated and ethylated phenols. Then the complex is decomposed to recover the para-cresol and salt; the recovered salt may be recycled to complex with more para-cresol.

REFERENCES:
patent: 1980384 (1934-11-01), Comte
patent: 2042331 (1936-05-01), Carswell
patent: 2366538 (1945-01-01), Luten et al.
patent: 2835714 (1958-05-01), Nixon et al.
Sharpless, et al., "Jour. Organic Chemistry", vol. 40, No. 9 (1975), pp. 1252-1257.

Affiliated with

Also associated with

Rating

Process for separating para-cresol from a mixture of methylated does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for separating para-cresol from a mixture of methylated , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for separating para-cresol from a mixture of methylated will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2048101