GB920905A - Improvements in and relating to purification of phenol - Google Patents

Improvements in and relating to purification of phenol

Info

Publication number
GB920905A
GB920905A GB37760/60A GB3776060A GB920905A GB 920905 A GB920905 A GB 920905A GB 37760/60 A GB37760/60 A GB 37760/60A GB 3776060 A GB3776060 A GB 3776060A GB 920905 A GB920905 A GB 920905A
Authority
GB
United Kingdom
Prior art keywords
phenol
heating
treatment
distillation
ferric chloride
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
GB37760/60A
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.)
Shawinigan Chemicals Ltd
Original Assignee
Shawinigan Chemicals 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 Shawinigan Chemicals Ltd filed Critical Shawinigan Chemicals Ltd
Publication of GB920905A publication Critical patent/GB920905A/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
    • C07C37/70—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
    • 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
    • C07C37/685—Processes comprising at least two steps in series
    • 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

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

A process for the purification of phenol, derived from cumene by oxidation followed by cleavage of the resulting hydroperoxide, and containing colour-forming impurities, comprises, after removal of unconverted reactants, acetone, and cleavage catalyst, heating the impure phenol with 0.025 to 0.25 pound moles of sodium or potassium hydroxide per 1,000 pounds of phenol for 16-48 hours at 95-170 DEG C., separating the phenol by distillation from the resultant mixture, heating the phenol distillate with 0.1 to 1.0% ferric chloride for 8 hours to 14 days at a temperature between the m.p. of the phenol and 80 DEG C., and separating the purified phenol by distillation, the water content of the mixture of phenol and ferric chloride being less than 1.0% by weight. The treatment with alkali metal hydroxide is preferably effected using caustic soda, as the dry substance or as a strong aqueous solution, at a concentration of 0.4% by weight. This treatment may be effected in the presence of iron e.g. by heating in the presence of iron powder or by working in a mild steel vessel. After treatment of the phenol with ferric chloride, about 3 moles of sodium or potassium hydroxide per mole of chloride may be added to the phenol before the subsequent distillation so as to reduce the risk of corrosion of plant equipment. Specification 647,063 is referred to.
GB37760/60A 1959-11-20 1960-11-03 Improvements in and relating to purification of phenol Expired GB920905A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA786914 1959-11-20

Publications (1)

Publication Number Publication Date
GB920905A true GB920905A (en) 1963-03-13

Family

ID=4141146

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37760/60A Expired GB920905A (en) 1959-11-20 1960-11-03 Improvements in and relating to purification of phenol

Country Status (1)

Country Link
GB (1) GB920905A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0190790A1 (en) * 1985-02-08 1986-08-13 ENICHEM ANIC S.p.A. Process for the purification of phenol
US5262016A (en) * 1990-06-01 1993-11-16 Enimont Anic S.R.L. Process for purifying phenol
EP1024128A1 (en) * 1999-01-29 2000-08-02 Phenolchemie GmbH & Co. KG Process for the separation of hydroxy acetone from a phenol containing the same
US7034192B2 (en) 2004-03-24 2006-04-25 Sunoco Inc. (R&M) Method for removal of acetol from phenol

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0190790A1 (en) * 1985-02-08 1986-08-13 ENICHEM ANIC S.p.A. Process for the purification of phenol
US5262016A (en) * 1990-06-01 1993-11-16 Enimont Anic S.R.L. Process for purifying phenol
EP1024128A1 (en) * 1999-01-29 2000-08-02 Phenolchemie GmbH & Co. KG Process for the separation of hydroxy acetone from a phenol containing the same
US7034192B2 (en) 2004-03-24 2006-04-25 Sunoco Inc. (R&M) Method for removal of acetol from phenol

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