GB1370325A - Separation of mixtures of phenols - Google Patents

Separation of mixtures of phenols

Info

Publication number
GB1370325A
GB1370325A GB853771A GB853771A GB1370325A GB 1370325 A GB1370325 A GB 1370325A GB 853771 A GB853771 A GB 853771A GB 853771 A GB853771 A GB 853771A GB 1370325 A GB1370325 A GB 1370325A
Authority
GB
United Kingdom
Prior art keywords
mixture
phenols
xylenol
isobutylene
debutylated
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
GB853771A
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.)
Coalite and Chemical Products Ltd
Original Assignee
Coalite and Chemical Products Ltd
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 Coalite and Chemical Products Ltd filed Critical Coalite and Chemical Products Ltd
Priority to GB853771A priority Critical patent/GB1370325A/en
Priority to DE19722215452 priority patent/DE2215452A1/de
Priority to FR7211437A priority patent/FR2132306B1/fr
Priority to JP47033112A priority patent/JPS4848430A/ja
Publication of GB1370325A publication Critical patent/GB1370325A/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
    • 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
    • C07C37/11—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms
    • C07C37/14—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms by addition reactions, i.e. reactions involving at least one carbon-to-carbon unsaturated bond
    • 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
    • C07C37/50—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions decreasing the number of carbon atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1370325 Separation of mixtures of phenols COALITE & CHEMICAL PRODUCTS Ltd 17 March 1972 [2 April 1971] 8537/71 Heading C2C A process for the production of di-tertiary butyl derivatives of a mixture of m- and pisomers of a monoalloylphenol and/or of monotertiary butyl derivatives of a mixture of dialloyl phenols comprises sulphonating a minor proportion of the mixture of phenols with sulphotrioxide and then butylating the mixture with isobutylene. The sulphur trioxide is preferably introduced under the surface of the mixture. The sulphonation may be carried out at 10 to 30‹ C. with the use of 1 to 5 parts by weight of SO 3 per 100 parts by weight of the mixture of phenols and the butylation may be effected at 0 to 50‹ C. The butyl phenols may be separated from the dibutylated mixture by distillation and then be debutylated in the presence of an acid catalyst, e.g. Cone. H 2 SO 4 . Also monotertiary butyl derivatives of a mixture comprising 2,4 xylenol and 2,5 xylenol are produced by sulphonating a minor proportion of the mixture of xylenols with sulphur trioxide and feeding isobutylene into the mixture until substantially 1 mole of isobutylene per mole xylenol has been absorbed. The mixture may be separated by distillation and may then be debutylated at 160 to 210‹ C. in the presence of an acid catalyst.
GB853771A 1971-04-02 1971-04-02 Separation of mixtures of phenols Expired GB1370325A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB853771A GB1370325A (en) 1971-04-02 1971-04-02 Separation of mixtures of phenols
DE19722215452 DE2215452A1 (en) 1971-04-02 1972-03-29
FR7211437A FR2132306B1 (en) 1971-04-02 1972-03-31
JP47033112A JPS4848430A (en) 1971-04-02 1972-04-01

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB853771A GB1370325A (en) 1971-04-02 1971-04-02 Separation of mixtures of phenols

Publications (1)

Publication Number Publication Date
GB1370325A true GB1370325A (en) 1974-10-16

Family

ID=9854359

Family Applications (1)

Application Number Title Priority Date Filing Date
GB853771A Expired GB1370325A (en) 1971-04-02 1971-04-02 Separation of mixtures of phenols

Country Status (4)

Country Link
JP (1) JPS4848430A (en)
DE (1) DE2215452A1 (en)
FR (1) FR2132306B1 (en)
GB (1) GB1370325A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110590508A (en) * 2019-09-29 2019-12-20 西安石油大学 Separation method of medium-low temperature coal tar 2,4/2, 5-mixed xylenol

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2554702C3 (en) * 1975-12-05 1980-09-11 Bayer Ag, 5090 Leverkusen Process for the production of m- and / or p-cresol by catalytic dealkylation of tert-alkyl-substituted phenols
DE2602149C3 (en) * 1976-01-21 1982-02-11 Bayer Ag, 5090 Leverkusen Process for the work-up of alkylphenol mixtures

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1035779A (en) * 1950-04-11 1953-08-31 Ici Ltd Production of phenols

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110590508A (en) * 2019-09-29 2019-12-20 西安石油大学 Separation method of medium-low temperature coal tar 2,4/2, 5-mixed xylenol
CN110590508B (en) * 2019-09-29 2023-06-27 西安石油大学 Separation method of medium-low temperature coal tar 2,4/2, 5-mixed xylenol

Also Published As

Publication number Publication date
FR2132306B1 (en) 1978-03-03
FR2132306A1 (en) 1972-11-17
JPS4848430A (en) 1973-07-09
DE2215452A1 (en) 1972-11-02

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee