AT331783B - PROCESS FOR THE PRODUCTION OF PHTHALIC ANHYDRIDE - Google Patents

PROCESS FOR THE PRODUCTION OF PHTHALIC ANHYDRIDE

Info

Publication number
AT331783B
AT331783B AT216374A AT216374A AT331783B AT 331783 B AT331783 B AT 331783B AT 216374 A AT216374 A AT 216374A AT 216374 A AT216374 A AT 216374A AT 331783 B AT331783 B AT 331783B
Authority
AT
Austria
Prior art keywords
production
phthalic anhydride
phthalic
anhydride
Prior art date
Application number
AT216374A
Other languages
German (de)
Other versions
ATA216374A (en
Original Assignee
Basf 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 Ag filed Critical Basf Ag
Publication of ATA216374A publication Critical patent/ATA216374A/en
Application granted granted Critical
Publication of AT331783B publication Critical patent/AT331783B/en

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
    • C07C51/54—Preparation of carboxylic acid anhydrides
    • C07C51/573—Separation; Purification; Stabilisation; Use of additives

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)
  • Furan Compounds (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
AT216374A 1973-03-17 1974-03-15 PROCESS FOR THE PRODUCTION OF PHTHALIC ANHYDRIDE AT331783B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732313306 DE2313306A1 (en) 1973-03-17 1973-03-17 PROCESS FOR THE PRODUCTION OF PHTHALIC ANHYDRIDE

Publications (2)

Publication Number Publication Date
ATA216374A ATA216374A (en) 1975-12-15
AT331783B true AT331783B (en) 1976-08-25

Family

ID=5875040

Family Applications (1)

Application Number Title Priority Date Filing Date
AT216374A AT331783B (en) 1973-03-17 1974-03-15 PROCESS FOR THE PRODUCTION OF PHTHALIC ANHYDRIDE

Country Status (6)

Country Link
JP (1) JPS49125330A (en)
AT (1) AT331783B (en)
BE (1) BE812185A (en)
DE (1) DE2313306A1 (en)
GB (1) GB1453507A (en)
IT (1) IT1008994B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3207208A1 (en) * 1982-02-27 1983-09-08 Basf Ag, 6700 Ludwigshafen METHOD FOR THE CONTINUOUS PRODUCTION OF PHTHALIC ACID ANHYDRIDE AND MALEIC ACID ANHYDRIDE FROM REACTION GASES
DE19939629A1 (en) * 1999-08-20 2001-02-22 Basf Ag Production of pure phthalic anhydride, e.g. for plasticizer production, involves distillation under reduced pressure in a column from which volatiles are taken off at the top and pure anhydride is taken off at a side arm
KR101480945B1 (en) * 2014-04-07 2015-01-14 문재운 Ball valve for leakage protection

Also Published As

Publication number Publication date
IT1008994B (en) 1976-11-30
JPS49125330A (en) 1974-11-30
DE2313306A1 (en) 1974-09-26
GB1453507A (en) 1976-10-27
BE812185A (en) 1974-09-12
ATA216374A (en) 1975-12-15

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