GB864106A - Preparation of phthalic acids by oxidation - Google Patents

Preparation of phthalic acids by oxidation

Info

Publication number
GB864106A
GB864106A GB2982559A GB2982559A GB864106A GB 864106 A GB864106 A GB 864106A GB 2982559 A GB2982559 A GB 2982559A GB 2982559 A GB2982559 A GB 2982559A GB 864106 A GB864106 A GB 864106A
Authority
GB
United Kingdom
Prior art keywords
xylene
oxidation
oxidate
zone
toluate
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
GB2982559A
Other languages
English (en)
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.)
Chemische Werke Witten GmbH
Original Assignee
Chemische Werke Witten GmbH
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 Chemische Werke Witten GmbH filed Critical Chemische Werke Witten GmbH
Publication of GB864106A publication Critical patent/GB864106A/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)
GB2982559A 1958-09-05 1959-09-01 Preparation of phthalic acids by oxidation Expired GB864106A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US75932458A 1958-09-05 1958-09-05

Publications (1)

Publication Number Publication Date
GB864106A true GB864106A (en) 1961-03-29

Family

ID=25055227

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2982559A Expired GB864106A (en) 1958-09-05 1959-09-01 Preparation of phthalic acids by oxidation

Country Status (6)

Country Link
BE (1) BE581049A (de)
CH (1) CH377795A (de)
DE (1) DE1114472B (de)
ES (1) ES251660A1 (de)
GB (1) GB864106A (de)
NL (1) NL242734A (de)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998027029A1 (en) * 1996-12-18 1998-06-25 Twenty-First Century Research Corporation Methods of preparing an intermediate oxidation product from a hydrocarbon by utilizing an activated initiator
US5877341A (en) * 1996-08-21 1999-03-02 Twenty-First Century Research Corporation Methods and devices for controlling the reaction rate of a hydrocarbon to an intermediate oxidation product by pressure drop adjustments
US5908589A (en) * 1997-12-08 1999-06-01 Twenty-First Century Research Corporation Methods for separating catalyst from oxidation mixtures containing dibasic acids
US5929277A (en) * 1997-09-19 1999-07-27 Twenty-First Century Research Corporation Methods of removing acetic acid from cyclohexane in the production of adipic acid
US5939582A (en) * 1996-01-17 1999-08-17 Twenty-First Century Research Corporation Reaction control by regulating internal condensation inside a reactor
US5998572A (en) * 1996-11-12 1999-12-07 Rpc Inc. Methods and devices for controlling the oxidation of a hydrocarbon to an acid by regulating temperature/conversion relationship in multi-stage arrangements
US6037491A (en) * 1997-07-25 2000-03-14 Rpc Inc. Methods and devices for controlling hydrocarbon oxidations to respective acids by adjusting the solvent to hydrocarbon ratio
US6039902A (en) * 1996-06-24 2000-03-21 Rpc Inc. Methods of recycling catalyst in oxidations of hydrocarbons
US6129875A (en) * 1998-02-19 2000-10-10 Rpc Inc. Process of separating catalyst from oxidation mixtures
US6143927A (en) * 1996-06-24 2000-11-07 Rpc Inc. Methods for removing catalyst after oxidation of hydrocarbons
US6218573B1 (en) 1998-07-02 2001-04-17 Rpc Inc. Methods of recovering catalyst in solution in the oxidation of cyclohexane to adipic acid
US6232495B1 (en) 1998-02-09 2001-05-15 Rpc Inc. Methods for treating cobalt catalyst in oxidation mixtures resulting from oxidation of hydrocarbons to dibasic acids
US6288270B1 (en) 1996-06-24 2001-09-11 Rpc Inc. Methods for controlling the reaction rate of a hydrocarbon to an acid by making phase-related adjustments
US6288274B1 (en) 1996-08-21 2001-09-11 Rpc Inc. Methods and devices for controlling the reaction rate and/or reactivity of hydrocarbon to an intermediate oxidation product by adjusting the oxidant consumption rate
US6340420B1 (en) 1998-07-06 2002-01-22 Rpc Inc. Methods of treating the oxidation mixture of hydrocarbons to respective dibasic acids
US6359173B1 (en) 1996-06-24 2002-03-19 Rpc Inc. Methods and devices for oxidizing a hydrocarbon to form an acid
US6417128B1 (en) 1999-04-20 2002-07-09 Rpc, Inc. Methods and replacing water and cyclohexanone with acetic acid in aqueous solutions of catalyst

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2010137C3 (de) * 1970-03-04 1979-07-05 Dynamit Nobel Ag, 5210 Troisdorf Verfahren zur Herstellung von Terephthalsauredimethylester
BE791138R (fr) 1971-12-18 1973-05-09 Dynamit Nobel Ag Procede de preparation de l'ester dimethylique de l'acide terephtaliqu

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5939582A (en) * 1996-01-17 1999-08-17 Twenty-First Century Research Corporation Reaction control by regulating internal condensation inside a reactor
US6143927A (en) * 1996-06-24 2000-11-07 Rpc Inc. Methods for removing catalyst after oxidation of hydrocarbons
US6359173B1 (en) 1996-06-24 2002-03-19 Rpc Inc. Methods and devices for oxidizing a hydrocarbon to form an acid
US6294689B1 (en) 1996-06-24 2001-09-25 Rpc Inc. Methods for removing catalyst after oxidation of hydrocarbons
US6288270B1 (en) 1996-06-24 2001-09-11 Rpc Inc. Methods for controlling the reaction rate of a hydrocarbon to an acid by making phase-related adjustments
US6039902A (en) * 1996-06-24 2000-03-21 Rpc Inc. Methods of recycling catalyst in oxidations of hydrocarbons
US5877341A (en) * 1996-08-21 1999-03-02 Twenty-First Century Research Corporation Methods and devices for controlling the reaction rate of a hydrocarbon to an intermediate oxidation product by pressure drop adjustments
US6288274B1 (en) 1996-08-21 2001-09-11 Rpc Inc. Methods and devices for controlling the reaction rate and/or reactivity of hydrocarbon to an intermediate oxidation product by adjusting the oxidant consumption rate
US6183698B1 (en) 1996-08-21 2001-02-06 Rpc Inc. Devices for controlling the reaction rate of a hydrocarbon to an intermediate oxidation product by pressure drop adjustments
US5998572A (en) * 1996-11-12 1999-12-07 Rpc Inc. Methods and devices for controlling the oxidation of a hydrocarbon to an acid by regulating temperature/conversion relationship in multi-stage arrangements
US5824819A (en) * 1996-12-18 1998-10-20 Twenty-First Century Research Corporation Methods of preparing an intermediate oxidation product from a hydrocarbon by utilizing an activated initiator
WO1998027029A1 (en) * 1996-12-18 1998-06-25 Twenty-First Century Research Corporation Methods of preparing an intermediate oxidation product from a hydrocarbon by utilizing an activated initiator
US6037491A (en) * 1997-07-25 2000-03-14 Rpc Inc. Methods and devices for controlling hydrocarbon oxidations to respective acids by adjusting the solvent to hydrocarbon ratio
US6177053B1 (en) 1997-09-19 2001-01-23 Rpc Inc. Devices for removing acetic acid from cyclohexane in the production of adipic acid
US5929277A (en) * 1997-09-19 1999-07-27 Twenty-First Century Research Corporation Methods of removing acetic acid from cyclohexane in the production of adipic acid
US5908589A (en) * 1997-12-08 1999-06-01 Twenty-First Century Research Corporation Methods for separating catalyst from oxidation mixtures containing dibasic acids
US6232495B1 (en) 1998-02-09 2001-05-15 Rpc Inc. Methods for treating cobalt catalyst in oxidation mixtures resulting from oxidation of hydrocarbons to dibasic acids
US6326455B2 (en) 1998-02-09 2001-12-04 Rpc Inc. Methods for treating cobalt catalyst in oxidation mixtures resulting from oxidation of hydrocarbons to dibasic acids
US6129875A (en) * 1998-02-19 2000-10-10 Rpc Inc. Process of separating catalyst from oxidation mixtures
US6218573B1 (en) 1998-07-02 2001-04-17 Rpc Inc. Methods of recovering catalyst in solution in the oxidation of cyclohexane to adipic acid
US6433221B1 (en) 1998-07-02 2002-08-13 Rpc Inc. Methods of separating catalyst in solution from a reaction mixture produced by oxidation of cyclohexane to adipic acid
US6433220B1 (en) 1998-07-02 2002-08-13 Rpc Inc. Methods of extracting catalyst from a reaction mixture in the oxidation of cyclohexane to adipic acid
US6340420B1 (en) 1998-07-06 2002-01-22 Rpc Inc. Methods of treating the oxidation mixture of hydrocarbons to respective dibasic acids
US6417128B1 (en) 1999-04-20 2002-07-09 Rpc, Inc. Methods and replacing water and cyclohexanone with acetic acid in aqueous solutions of catalyst

Also Published As

Publication number Publication date
CH377795A (de) 1964-05-31
BE581049A (fr) 1959-11-16
DE1114472B (de) 1961-10-05
NL242734A (de)
ES251660A1 (es) 1960-01-01

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