GB1443408A - Process for producing ethylphenols and acetaldehyde - Google Patents

Process for producing ethylphenols and acetaldehyde

Info

Publication number
GB1443408A
GB1443408A GB664775A GB664775A GB1443408A GB 1443408 A GB1443408 A GB 1443408A GB 664775 A GB664775 A GB 664775A GB 664775 A GB664775 A GB 664775A GB 1443408 A GB1443408 A GB 1443408A
Authority
GB
United Kingdom
Prior art keywords
diethylbenzene
ethylphenol
hydroperoxide
acetaldehyde
mixture
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
GB664775A
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.)
Labofina SA
Original Assignee
Labofina SA
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 Labofina SA filed Critical Labofina SA
Publication of GB1443408A publication Critical patent/GB1443408A/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
    • C07C37/08—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
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/51—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition
    • C07C45/53—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition of hydroperoxides

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

1443408 Ethylphenol LABOFINA SA 17 Feb 1975 [21 Feb 1974] 6647/75 Addition to 1432680 Heading C2C In a process for producing ethylphenols and acetaldehyde which comprises: reacting in liquid phase, diethylbenzene with a molecular oxygen containing gas, at a temperature between 100‹ and 180‹ C., until 5 to 30% of the diethylbenzene feed is converted into diethylbenzene hydroperoxide; withdrawing the reaction mixture, evaporating the unconverted diethylbenzene therefrom to obtain a concentrate containing at least 40% of diethylbenzene hydroperoxide, and recycling the unconverted diethylbenzene to the oxidation stage; mixing the diethylbenzene hydroperoxide concentrate with a solvent chosen from low molecular weight aliphatic alcohols, ketones and mixtures thereof having up to 4 carbon atoms; decomposing said hydroperoxide by intimate contact with an acid chosen from sulphuric acid, phosphoric acid, sulphonic acids, Lewis acids and in exchange resins which is used in an amount of between 0À05 and 5% of the weight of total reaction mixture; neutralizing the resulting mixture and thereafter distilling the neutralized mixture to recover a bottom fraction containing ethylphenol and an overhead fraction containing acetaldehyde, the ethylphenol obtained is treated with a known ketones reactant and the mixture distilled in order to obtain ethylphenol with a high degree of purity.
GB664775A 1972-10-04 1975-02-17 Process for producing ethylphenols and acetaldehyde Expired GB1443408A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE122730 1972-10-04
BE141219A BE811383R (en) 1972-10-04 1974-02-21 PROCESS FOR PREPARATION OF ETHYLPHENOLS AND ACETALDEHYDE

Publications (1)

Publication Number Publication Date
GB1443408A true GB1443408A (en) 1976-07-21

Family

ID=25647611

Family Applications (1)

Application Number Title Priority Date Filing Date
GB664775A Expired GB1443408A (en) 1972-10-04 1975-02-17 Process for producing ethylphenols and acetaldehyde

Country Status (4)

Country Link
BE (1) BE811383R (en)
DE (1) DE2507227A1 (en)
GB (1) GB1443408A (en)
NL (1) NL7500835A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5268134A (en) * 1975-12-05 1977-06-06 Sanko Kagaku Kk Method of preventing decoloration and coloration of phenols

Also Published As

Publication number Publication date
DE2507227A1 (en) 1975-10-02
BE811383R (en) 1974-06-17
NL7500835A (en) 1975-08-25

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Legal Events

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