GB1048800A - Process for the separation of p-cresol from cresol mixtures - Google Patents

Process for the separation of p-cresol from cresol mixtures

Info

Publication number
GB1048800A
GB1048800A GB4599165A GB4599165A GB1048800A GB 1048800 A GB1048800 A GB 1048800A GB 4599165 A GB4599165 A GB 4599165A GB 4599165 A GB4599165 A GB 4599165A GB 1048800 A GB1048800 A GB 1048800A
Authority
GB
United Kingdom
Prior art keywords
cresol
mixtures
separation
separated
oxalic acid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB4599165A
Inventor
Hans-Georg Rosenkranz
Harald Winter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Leuna Werke GmbH
Original Assignee
Leuna Werke GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Leuna Werke GmbH filed Critical Leuna Werke GmbH
Priority to GB4599165A priority Critical patent/GB1048800A/en
Publication of GB1048800A publication Critical patent/GB1048800A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
    • C07C37/86—Purification; separation; Use of additives, e.g. for stabilisation by treatment giving rise to a chemical modification

Abstract

p-Cresol is separated from cresol mixtures by treating the mixtures with aqueous oxalic acid while subjecting them to azeotropic distillation until the water content has fallen to 0.5-1.8 mols. per mol. of p-cresol. The treatment results in the formation of the semi-ester of p-cresol and oxalic acid, which is separated from the mixture and then decomposed by treatment with water. Both the esterification and the decomposition may be effected in an organic solvent, e.g. benzene or benzine. Examples are given.
GB4599165A 1965-10-29 1965-10-29 Process for the separation of p-cresol from cresol mixtures Expired GB1048800A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4599165A GB1048800A (en) 1965-10-29 1965-10-29 Process for the separation of p-cresol from cresol mixtures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4599165A GB1048800A (en) 1965-10-29 1965-10-29 Process for the separation of p-cresol from cresol mixtures

Publications (1)

Publication Number Publication Date
GB1048800A true GB1048800A (en) 1966-11-23

Family

ID=10439394

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4599165A Expired GB1048800A (en) 1965-10-29 1965-10-29 Process for the separation of p-cresol from cresol mixtures

Country Status (1)

Country Link
GB (1) GB1048800A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111909004A (en) * 2019-05-10 2020-11-10 陕西省石油化工研究设计院 Method for separating m-cresol from p-cresol

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111909004A (en) * 2019-05-10 2020-11-10 陕西省石油化工研究设计院 Method for separating m-cresol from p-cresol

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