ES369146A1 - Production of carboxylic acids and anhydrides - Google Patents

Production of carboxylic acids and anhydrides

Info

Publication number
ES369146A1
ES369146A1 ES369146A ES369146A ES369146A1 ES 369146 A1 ES369146 A1 ES 369146A1 ES 369146 A ES369146 A ES 369146A ES 369146 A ES369146 A ES 369146A ES 369146 A1 ES369146 A1 ES 369146A1
Authority
ES
Spain
Prior art keywords
oxidation
anhydrides
carboxylic acids
anhydride
production
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
ES369146A
Other languages
Spanish (es)
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.)
BASF SE
Original Assignee
BASF SE
Badische Anilin and Sodafabrik AG
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 BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of ES369146A1 publication Critical patent/ES369146A1/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
    • 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
    • C07C51/25—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring
    • C07C51/252—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring of propene, butenes, acrolein or methacrolein

Landscapes

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

Abstract

The invention relates to the manufacture of carboxylic acids and anhydrides by oxidizing aromatic hydrocarbons or unsaturated aliphatic hydrocarbons in the vapour phase with air at 350-450 C. in contact with a catalyst arranged in one or more tubes surrounded by a heatexchange medium. According to the invention, the heat-exchange medium flows in the same direction as the reaction gases. An example is given in which the invention is applied to the oxidation of o-xylene to yield phthalic anhydride. Other stated applications of the invention are the oxidation of naphthalene to phthalic anhydride, the oxidation of 1,2,4-trialkylbenzenes or #-alkylnaphthalenes to trimellitic acid or its anhydride and the oxidation of benzene or n-but-2-ene to maleic anhydride.
ES369146A 1968-07-04 1969-07-04 Production of carboxylic acids and anhydrides Expired ES369146A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681768830 DE1768830A1 (en) 1968-07-04 1968-07-04 Process for the production of carboxylic acids and carboxylic acid anhydrides by partial catalytic oxidation of aromatic or unsaturated aliphatic hydrocarbons on solid contacts

Publications (1)

Publication Number Publication Date
ES369146A1 true ES369146A1 (en) 1971-06-01

Family

ID=5699880

Family Applications (1)

Application Number Title Priority Date Filing Date
ES369146A Expired ES369146A1 (en) 1968-07-04 1969-07-04 Production of carboxylic acids and anhydrides

Country Status (8)

Country Link
AT (1) AT290512B (en)
BE (1) BE735642A (en)
BR (1) BR6910410D0 (en)
DE (1) DE1768830A1 (en)
ES (1) ES369146A1 (en)
FR (1) FR2012297A1 (en)
GB (1) GB1263788A (en)
NL (1) NL6910170A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2903582B1 (en) * 1979-01-31 1980-11-20 Basf Ag, 6700 Ludwigshafen Tube bundle reactor for carrying out catalytic reactions in the gas phase

Also Published As

Publication number Publication date
GB1263788A (en) 1972-02-16
BE735642A (en) 1970-01-05
DE1768830A1 (en) 1972-02-03
AT290512B (en) 1971-06-11
NL6910170A (en) 1970-01-06
FR2012297A1 (en) 1970-03-20
BR6910410D0 (en) 1973-01-09

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