GB1342835A - Process for the neutralization of rearrangement reaction products and process for the continuous isolation of dihydric phenols - Google Patents

Process for the neutralization of rearrangement reaction products and process for the continuous isolation of dihydric phenols

Info

Publication number
GB1342835A
GB1342835A GB2273871A GB2273871A GB1342835A GB 1342835 A GB1342835 A GB 1342835A GB 2273871 A GB2273871 A GB 2273871A GB 2273871 A GB2273871 A GB 2273871A GB 1342835 A GB1342835 A GB 1342835A
Authority
GB
United Kingdom
Prior art keywords
column
ketone
arrangement
neutralization
dihydric phenols
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
GB2273871A
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.)
Signal Chemical Co
Original Assignee
Signal Chemical Co
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 Signal Chemical Co filed Critical Signal Chemical Co
Publication of GB1342835A publication Critical patent/GB1342835A/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
    • C07C37/08—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by decomposition of hydroperoxides, e.g. cumene hydroperoxide
    • 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
    • C07C37/70—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment
    • C07C37/72—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by liquid-liquid treatment
    • 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

1342835 - Preparation of dihydric phenols SIGNAL CHEMICAL CO 19 April 1971 [5 March 1970 (2)] 22738/71 Heading C2C In a process for producing a dihydric phenol by the re-arrangement of a dialkylbenzenedihydroperoxide wherein a ketone is a byproduct of the re-arrangement, the ketone is separated from the dihydric phenol product by feeding a neutralized re-arrangement effluent stream, a hydrocarbon solvent and an aqueous feed to a distillation column; supplying distillation heat to the fluid in the lower section of the column; removing a stream containing the ketone from the upper section of the column; removing bottoms comprising an aqueous phase and a hydrocarbon phase from the column; separating the hydrocarbon phase from the aqueous phase and recovering from the latter solid dihydric phenol product. The invention is described by reference to flow diagrams and illustrated by the preparation of resorcinol and hydroquinone.
GB2273871A 1970-03-05 1971-04-19 Process for the neutralization of rearrangement reaction products and process for the continuous isolation of dihydric phenols Expired GB1342835A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US1685370A 1970-03-05 1970-03-05
DE2228286A DE2228286A1 (en) 1970-03-05 1972-06-09 Process for the separation of divalent phenols produced by rearrangement from their reaction mixtures

Publications (1)

Publication Number Publication Date
GB1342835A true GB1342835A (en) 1974-01-03

Family

ID=25763403

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2273871A Expired GB1342835A (en) 1970-03-05 1971-04-19 Process for the neutralization of rearrangement reaction products and process for the continuous isolation of dihydric phenols

Country Status (2)

Country Link
DE (1) DE2228286A1 (en)
GB (1) GB1342835A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2427319A1 (en) * 1978-05-30 1979-12-28 Mitsui Petrochemical Ind PROCESS FOR THE PREPARATION OF RESORCINOL
EP0018159A1 (en) * 1979-04-20 1980-10-29 Imperial Chemical Industries Plc Process for the production of phenol, acetone and alpha methylstyrene
FR2478075A1 (en) * 1980-03-14 1981-09-18 Ugine Kuhlmann PROCESS FOR THE PREPARATION, CATALYZED BY A SUPERACID, OF RESORCINOL FROM META-DIISOPROPYLBENZENE
FR2493832A1 (en) * 1980-03-14 1982-05-14 Ugine Kuhlmann PROCESS FOR THE PREPARATION, CATALYZED BY A SUPERACID, OF RESORCINOL FROM META-ISOPROPYLPHENOL

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4473395B2 (en) 2000-02-18 2010-06-02 住友化学株式会社 Process for producing hydroxyaromatic compounds

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2427319A1 (en) * 1978-05-30 1979-12-28 Mitsui Petrochemical Ind PROCESS FOR THE PREPARATION OF RESORCINOL
EP0018159A1 (en) * 1979-04-20 1980-10-29 Imperial Chemical Industries Plc Process for the production of phenol, acetone and alpha methylstyrene
FR2478075A1 (en) * 1980-03-14 1981-09-18 Ugine Kuhlmann PROCESS FOR THE PREPARATION, CATALYZED BY A SUPERACID, OF RESORCINOL FROM META-DIISOPROPYLBENZENE
FR2493832A1 (en) * 1980-03-14 1982-05-14 Ugine Kuhlmann PROCESS FOR THE PREPARATION, CATALYZED BY A SUPERACID, OF RESORCINOL FROM META-ISOPROPYLPHENOL
US4339614A (en) * 1980-03-14 1982-07-13 Pcuk Produits Chimiques Ugine Kuhlmann Superacid catalyzed preparation of resorcinol from meta-isopropylphenol

Also Published As

Publication number Publication date
DE2228286A1 (en) 1974-01-03

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee