GB708925A - Separation of phenols by fractional distillation - Google Patents

Separation of phenols by fractional distillation

Info

Publication number
GB708925A
GB708925A GB739051A GB739051A GB708925A GB 708925 A GB708925 A GB 708925A GB 739051 A GB739051 A GB 739051A GB 739051 A GB739051 A GB 739051A GB 708925 A GB708925 A GB 708925A
Authority
GB
United Kingdom
Prior art keywords
fraction
mesitol
xylenol
phenols
boiling
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
GB739051A
Inventor
David William Milner
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.)
Vulcan Chemical Co Ltd
Original Assignee
Vulcan Chemical Co 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 Vulcan Chemical Co Ltd filed Critical Vulcan Chemical Co Ltd
Priority to GB739051A priority Critical patent/GB708925A/en
Publication of GB708925A publication Critical patent/GB708925A/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
    • C07C37/005—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by obtaining phenols from products, waste products or side-products of processes, not directed to the production of phenols, by conversion or working-up
    • C07C37/007—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by obtaining phenols from products, waste products or side-products of processes, not directed to the production of phenols, by conversion or working-up from the tar industry
    • 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
    • C07C37/70—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment
    • C07C37/74—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by distillation
    • C07C37/78—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by distillation by azeotropic distillation

Landscapes

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

Abstract

Mesitol (2 : 4 : 6-trimethyl phenol) or 2 : 6-xylenol is recovered in a relatively concentrated form from a respective close-boiling phenolic fraction by subjecting the fraction to fractional azeotropic distillation with water. The distillate fraction containing the desired phenol is then crystallized to recover the desired phenol in pure form, if necessary after this fraction has first been dry distilled to remove undesired phenols. The Specification describes the recovery of 2 : 6-xylenol from a cresol fraction and of mesitol from a fraction boiling at 220-225 DEG C.ALSO:Mesitol (2 : 4 : 6-trimethyl phenol) or 2 : 6-xylenol is recovered from a respective close-boiling phenolic fraction by subjecting the fraction to fractional azeatropic distillation with water. The distillate fraction containing the desired phenol is then crystallized to recover the desired phenol in pure form, if necessary after this fraction has first been dry distilled to remove undesired phenols. The Specification describes the recovery of 2 : 6-xylenol from a cresol fraction and of mesitol from a fraction boiling at 220 DEG -225 DEG C., the fractionation being performed in a column having about 15 theoretical plates.
GB739051A 1951-03-30 1951-03-30 Separation of phenols by fractional distillation Expired GB708925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB739051A GB708925A (en) 1951-03-30 1951-03-30 Separation of phenols by fractional distillation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB739051A GB708925A (en) 1951-03-30 1951-03-30 Separation of phenols by fractional distillation

Publications (1)

Publication Number Publication Date
GB708925A true GB708925A (en) 1954-05-12

Family

ID=9832212

Family Applications (1)

Application Number Title Priority Date Filing Date
GB739051A Expired GB708925A (en) 1951-03-30 1951-03-30 Separation of phenols by fractional distillation

Country Status (1)

Country Link
GB (1) GB708925A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2789146A (en) * 1954-08-10 1957-04-16 Consolidation Coal Co Separation of 2, 6-xylenols from cresols
US3331755A (en) * 1964-12-18 1967-07-18 Consolidation Coal Co Extractive distillation of 2, 6-xylenol with glycol
DE1290146B (en) * 1964-01-24 1969-03-06 Gen Electric Process for the recovery of pure 2,6-xylenol from a cresol fraction
EP0014410A1 (en) * 1979-02-08 1980-08-20 Bayer Ag Process for the separation of phenol from a mixture of cresols
US5354429A (en) * 1991-12-04 1994-10-11 Dakota Gasification Company Natural cresylic acid processing
CN112979426A (en) * 2021-03-02 2021-06-18 天津市创举科技股份有限公司 Refining method of phenolic compounds in medium and low temperature coal tar

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2789146A (en) * 1954-08-10 1957-04-16 Consolidation Coal Co Separation of 2, 6-xylenols from cresols
DE1290146B (en) * 1964-01-24 1969-03-06 Gen Electric Process for the recovery of pure 2,6-xylenol from a cresol fraction
US3331755A (en) * 1964-12-18 1967-07-18 Consolidation Coal Co Extractive distillation of 2, 6-xylenol with glycol
EP0014410A1 (en) * 1979-02-08 1980-08-20 Bayer Ag Process for the separation of phenol from a mixture of cresols
US5354429A (en) * 1991-12-04 1994-10-11 Dakota Gasification Company Natural cresylic acid processing
CN112979426A (en) * 2021-03-02 2021-06-18 天津市创举科技股份有限公司 Refining method of phenolic compounds in medium and low temperature coal tar
CN112979426B (en) * 2021-03-02 2023-01-13 天津市创举科技股份有限公司 Refining method of phenolic compounds in medium and low temperature coal tar

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