GB1428831A - Separation of aromatic carboxylic acids - Google Patents

Separation of aromatic carboxylic acids

Info

Publication number
GB1428831A
GB1428831A GB2394673A GB2394673A GB1428831A GB 1428831 A GB1428831 A GB 1428831A GB 2394673 A GB2394673 A GB 2394673A GB 2394673 A GB2394673 A GB 2394673A GB 1428831 A GB1428831 A GB 1428831A
Authority
GB
United Kingdom
Prior art keywords
acid
component
aromatic carboxylic
cobalt
manganese
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
GB2394673A
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.)
Teijin Ltd
Original Assignee
Teijin 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
Priority claimed from JP5003072A external-priority patent/JPS4911839A/ja
Priority claimed from JP47053307A external-priority patent/JPS497243A/ja
Application filed by Teijin Ltd filed Critical Teijin Ltd
Publication of GB1428831A publication Critical patent/GB1428831A/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
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives

Abstract

1428831 Separation of aromatic carboxylic acids TEIJIN Ltd 18 May 1973 [20 May 1972 31 May 1972] 23946/73 Heading C2C Benzene ortho - polycarboxylic acids are separated from an aromatic carboxylic acid mixture by a process comprising heating a liquid composition containing at most 20% by weight of water and at least the following four components: (a) at least one benzene orthopolycarboxylic acid (i.e. a compound containing at least one benzene ring bearing at least two carboxylic groups in ortho-position to each other), (b) at least one aromatic carboxylic acid which is not a benzene ortho-polycarboxylic acid; (c) at least one aliphatic monocarboxylic acid having 2-4 carbon atoms, and (d) at least one carboxylate of cobalt or manganese which is soluble in component(c) at a temperature of at least 90‹ C. to form a precipitate containing cobalt and/or manganese complexes of the acid(s) in component (a) and isolating the precipitate. Component (a) above may contain, for example, at least one of o-phthalic acid, trimellitic acid, hemimellitic acid, 3-methylphthalic acid and 4-methylphthalic acid, Component (b) may contain, for example, at least one of benzoic acid, a toluic acid, a dimethylbenzoic acid, isophthalic acid, terephthalic acid, a monomethylisophthalic acid, a monomethylterephthalic acid, trimesic acid, a naphthoic acid and a naphthalene dicarboxylin acid. The liquid composition used as starting material may be obtained by oxidation of at least one alkylbenzene or alkylnaphthalene. It may be obtained, for example, by oxidizing composition containing at least one of o-xylene, pseudocumene or a mono- or di-methylnaphthalene in component (c) as solvent and in the presence of a catalyst system containing at least one carboxylate of cobalt and/or manganese which is soluble in (c), or a cobalt and/or manganese compound which can form such a carboxylate under the reaction conditions, and separating from the oxidation reaction product the solid component containing solid aromatic carboxylic acids.
GB2394673A 1972-05-20 1973-05-18 Separation of aromatic carboxylic acids Expired GB1428831A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP5003072A JPS4911839A (en) 1972-05-20 1972-05-20
JP47053307A JPS497243A (en) 1972-05-31 1972-05-31

Publications (1)

Publication Number Publication Date
GB1428831A true GB1428831A (en) 1976-03-17

Family

ID=26390473

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2394673A Expired GB1428831A (en) 1972-05-20 1973-05-18 Separation of aromatic carboxylic acids

Country Status (3)

Country Link
DE (1) DE2325638A1 (en)
FR (1) FR2185609B1 (en)
GB (1) GB1428831A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006028816A1 (en) * 2004-09-02 2006-03-16 Eastman Chemical Company Optimized liquid-phase oxidation
US7659427B2 (en) 2004-09-02 2010-02-09 Eastman Chemical Company Optimized liquid-phase oxidation
US7683210B2 (en) 2004-09-02 2010-03-23 Eastman Chemical Company Optimized liquid-phase oxidation
US7692036B2 (en) 2004-11-29 2010-04-06 Eastman Chemical Company Optimized liquid-phase oxidation
US7884232B2 (en) 2005-06-16 2011-02-08 Eastman Chemical Company Optimized liquid-phase oxidation
US7901636B2 (en) 2004-09-02 2011-03-08 Eastman Chemical Company Optimized liquid-phase oxidation
US7902396B2 (en) 2004-09-02 2011-03-08 Eastman Chemical Company Optimized liquid-phase oxidation
US7910769B2 (en) 2004-09-02 2011-03-22 Eastman Chemical Company Optimized liquid-phase oxidation
US7910071B2 (en) 2004-09-02 2011-03-22 Eastman Chemical Company Optimized liquid-phase oxidation
US7960581B2 (en) 2004-09-02 2011-06-14 Grupo Petrotemex, S.A. De C.V. Optimized liquid-phase oxidation
US7977505B2 (en) 2004-09-02 2011-07-12 Eastman Chemical Company Optimized liquid-phase oxidation
US8114356B2 (en) 2004-09-02 2012-02-14 Grupo Pretrotemex, S.A. de C.V. Optimized liquid-phase oxidation
US8178054B2 (en) 2004-09-02 2012-05-15 Grupo Petrotemex, S. A. DE C. V. Optimized liquid-phase oxidation
US8470257B2 (en) 2004-09-02 2013-06-25 Grupo Petrotemex, S.A. De C.V. Optimized liquid-phase oxidation
CN104098463A (en) * 2014-06-16 2014-10-15 北京化工大学 Separation method for benzene polycarboxylic acid isomers

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7910769B2 (en) 2004-09-02 2011-03-22 Eastman Chemical Company Optimized liquid-phase oxidation
US8178054B2 (en) 2004-09-02 2012-05-15 Grupo Petrotemex, S. A. DE C. V. Optimized liquid-phase oxidation
US7910071B2 (en) 2004-09-02 2011-03-22 Eastman Chemical Company Optimized liquid-phase oxidation
US7960581B2 (en) 2004-09-02 2011-06-14 Grupo Petrotemex, S.A. De C.V. Optimized liquid-phase oxidation
US7741515B2 (en) 2004-09-02 2010-06-22 Eastman Chemical Company Optimized liquid-phase oxidation
WO2006028816A1 (en) * 2004-09-02 2006-03-16 Eastman Chemical Company Optimized liquid-phase oxidation
US7901636B2 (en) 2004-09-02 2011-03-08 Eastman Chemical Company Optimized liquid-phase oxidation
US7902396B2 (en) 2004-09-02 2011-03-08 Eastman Chemical Company Optimized liquid-phase oxidation
US8470257B2 (en) 2004-09-02 2013-06-25 Grupo Petrotemex, S.A. De C.V. Optimized liquid-phase oxidation
US7683210B2 (en) 2004-09-02 2010-03-23 Eastman Chemical Company Optimized liquid-phase oxidation
US7659427B2 (en) 2004-09-02 2010-02-09 Eastman Chemical Company Optimized liquid-phase oxidation
US7977505B2 (en) 2004-09-02 2011-07-12 Eastman Chemical Company Optimized liquid-phase oxidation
US8114356B2 (en) 2004-09-02 2012-02-14 Grupo Pretrotemex, S.A. de C.V. Optimized liquid-phase oxidation
US7692036B2 (en) 2004-11-29 2010-04-06 Eastman Chemical Company Optimized liquid-phase oxidation
US8501986B2 (en) 2004-11-29 2013-08-06 Grupo Petrotemex, S.A. De C.V. Optimized liquid-phase oxidation
US7884232B2 (en) 2005-06-16 2011-02-08 Eastman Chemical Company Optimized liquid-phase oxidation
CN104098463B (en) * 2014-06-16 2015-11-11 北京化工大学 A kind of separation method of benzene polycarboxylic acid's isomers
CN104098463A (en) * 2014-06-16 2014-10-15 北京化工大学 Separation method for benzene polycarboxylic acid isomers

Also Published As

Publication number Publication date
FR2185609A1 (en) 1974-01-04
FR2185609B1 (en) 1976-05-28
DE2325638A1 (en) 1973-12-06

Similar Documents

Publication Publication Date Title
GB1428831A (en) Separation of aromatic carboxylic acids
US3626001A (en) Method for the production of high-purity isophthalic or terephthalic acid
GB1004895A (en) Process for the production of isophthalic and terephthalic acids
GB1449189A (en) Process for preparation of phthalic acids
ES299386A1 (en) Procedure for the continuous preparation of aromatic acids (Machine-translation by Google Translate, not legally binding)
GB1450986A (en) Production of carboxylic acids or dicarboxylic anhydrides
GB1262946A (en) PROCESS FOR THE PREPARATION OF BIS-(beta-HYDROXYALKYL) ESTERS OF AROMATIC DICARBOXYLIC ACIDS
GB1436671A (en) Process for the disproportionation of alkali metal aromatic carboxylates
GB833175A (en) Preparation of aromatic carboxylic acids
US2729674A (en) Decarboxylation of trimellitic acid
US3007942A (en) Resolution of trimesic and trimellitic acid
GB1389929A (en) Preparation of aromatic polycarboxylic acids
US3093683A (en) Process for the transformation of benzene polycarboxylic acids to terephthalic acid
GB1415886A (en) Preparation of terephthalic acid
US3679740A (en) Preparation of aromatic acids
GB1200392A (en) Process for the manufacture of phenyl esters from benzene
US3683017A (en) Oxidation of p-xylene and p-tolujc acid to terephthalic acid
US3644506A (en) Preparation of aromatic carboxylic acids
US3284493A (en) Process for the conversion of methyl-substituted benzene compounds to carboxylic acids
US3075009A (en) Oxidation of alkylbenzene carboxylic acids
GB807091A (en) Process for the production of aromatic polycarboxylic acids
US3467698A (en) Oxidation of alkyl aromatic compounds to aromatic carboxylic acids
US3008983A (en) Preparation of methylaromatic dicarboxylic acids
US2698865A (en) Process for production of aromatic polycarboxylic acids
GB1386582A (en) Process for the purification of aromatic acids by solvent extraction

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees