GB680572A - Improvements in or relating to liquid phase oxidation of alkylbenzenes - Google Patents

Improvements in or relating to liquid phase oxidation of alkylbenzenes

Info

Publication number
GB680572A
GB680572A GB5297/50A GB529750A GB680572A GB 680572 A GB680572 A GB 680572A GB 5297/50 A GB5297/50 A GB 5297/50A GB 529750 A GB529750 A GB 529750A GB 680572 A GB680572 A GB 680572A
Authority
GB
United Kingdom
Prior art keywords
oxidized
alkylbenzenes
relating
alkyl
liquid phase
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
GB5297/50A
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.)
Monsanto Chemicals Ltd
Monsanto Chemical Co
Original Assignee
Monsanto Chemicals Ltd
Monsanto 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 Monsanto Chemicals Ltd, Monsanto Chemical Co filed Critical Monsanto Chemicals Ltd
Publication of GB680572A publication Critical patent/GB680572A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
    • C07C51/255—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting
    • C07C51/265—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting having alkyl side chains which are oxidised to carboxyl groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Alkyl benzenes are catalytically oxidized to the corresponding carboxylic acids by heating with an oxygen-containing gas in the presence of a lead tetra-alkyl, an aromatic aldehyde or hexachloroethane. The reaction is preferably carried out at a temperature in excess of 140 DEG C., with the promoter present in an amount of from 0.05 to 2 per cent by weight of the alkyl benzene. When an aromatic aldehyde is used as the promoter it is preferred to use the aldehyde corresponding to the particular alkyl benzene being oxidized. In examples, paraxylene is oxidized to terephthalic acid using varying experimental conditions.
GB5297/50A 1949-03-22 1950-03-02 Improvements in or relating to liquid phase oxidation of alkylbenzenes Expired GB680572A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US680572XA 1949-03-22 1949-03-22

Publications (1)

Publication Number Publication Date
GB680572A true GB680572A (en) 1952-10-08

Family

ID=22080147

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5297/50A Expired GB680572A (en) 1949-03-22 1950-03-02 Improvements in or relating to liquid phase oxidation of alkylbenzenes

Country Status (1)

Country Link
GB (1) GB680572A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1081878B (en) * 1955-09-22 1960-05-19 Wilhelm Schemuth Process for the production of terephthalic acid by the oxidation of p-ethyltoluene
DE1102131B (en) * 1954-11-26 1961-03-16 Mid Century Corp Process for the preparation of benzene dicarboxylic acids

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1102131B (en) * 1954-11-26 1961-03-16 Mid Century Corp Process for the preparation of benzene dicarboxylic acids
DE1081878B (en) * 1955-09-22 1960-05-19 Wilhelm Schemuth Process for the production of terephthalic acid by the oxidation of p-ethyltoluene

Similar Documents

Publication Publication Date Title
GB1007570A (en) Process for the catalytic oxidation of xylenes or industrial mixtures of xylenes
ES299386A1 (en) Procedure for the continuous preparation of aromatic acids (Machine-translation by Google Translate, not legally binding)
GB680571A (en) Improvements in or relating to liquid phase oxidation
GB681455A (en) Process for the production of aromatic dicarboxylic acids
GB680572A (en) Improvements in or relating to liquid phase oxidation of alkylbenzenes
GB1023401A (en) Manufacture of aromatic hydrocarbons
GB1190433A (en) Process for preparing a Mixture of Aromatic Sulfones and Aromatic Sulfonyl Chlorides
GB1063451A (en) Aromatic acids
GB901271A (en) Ester preparation
GB597029A (en) Controlled oxidation of paraffinic hydrocarbons and partially halogenated derivatives thereof
US2973310A (en) Process for the oxidation of organic compounds
GB644071A (en) Method of preparing phthaloyl chlorides
US2454385A (en) Manufacture of fumaric acid
GB919088A (en) Process for the arylation of aromatic compounds
SU459457A1 (en) Method for producing benzenedicarboxylic acids
GB841244A (en) Oxidation of organic compounds
US2764611A (en) Process for production of aromatic polycarboxylic acids
US3507914A (en) Process for the preparation of aromatic carboxylic acids
GB825975A (en) Aromatic carboxylic acids
GB866042A (en) Process for the preparation of aromatic phosphinic acids
GB1088183A (en) Benzene polycarboxylic acids
GB574958A (en) Controlled catalytic oxidation of organic compounds
ES254766A1 (en) Improvements in and relating to the oxidation of organic compounds
GB733322A (en) Process for the manufacture of polybasic aromatic carboxylic acids
GB825998A (en) Improvements in the production of benzene dicarboxylic acids and their alkanol esters