JPH058194B2 - - Google Patents

Info

Publication number
JPH058194B2
JPH058194B2 JP59048275A JP4827584A JPH058194B2 JP H058194 B2 JPH058194 B2 JP H058194B2 JP 59048275 A JP59048275 A JP 59048275A JP 4827584 A JP4827584 A JP 4827584A JP H058194 B2 JPH058194 B2 JP H058194B2
Authority
JP
Japan
Prior art keywords
phthalic anhydride
ppm
nch
naphthoquinone
content
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 - Lifetime
Application number
JP59048275A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59176271A (ja
Inventor
Guude Furitsutsu
Hafuerukorun Heruberuto
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.)
Huels AG
Original Assignee
Chemische Werke Huels 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 Chemische Werke Huels AG filed Critical Chemische Werke Huels AG
Publication of JPS59176271A publication Critical patent/JPS59176271A/ja
Publication of JPH058194B2 publication Critical patent/JPH058194B2/ja
Granted legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/54Preparation of carboxylic acid anhydrides
    • C07C51/573Separation; Purification; Stabilisation; Use of additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Furan Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
JP59048275A 1983-03-16 1984-03-15 ナフタリンの空気酸化によつて製造した無水フタル酸からナフトキノンを除く方法 Granted JPS59176271A (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3309310A DE3309310A1 (de) 1983-03-16 1983-03-16 Verfahren zur entfernung von naphthochinon aus durch luftoxidation von naphthalin hergestelltem phthalsaeureanhydrid
DE3309310.5 1983-03-16
DE3329026.1 1983-08-11

Publications (2)

Publication Number Publication Date
JPS59176271A JPS59176271A (ja) 1984-10-05
JPH058194B2 true JPH058194B2 (enrdf_load_stackoverflow) 1993-02-01

Family

ID=6193567

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59048275A Granted JPS59176271A (ja) 1983-03-16 1984-03-15 ナフタリンの空気酸化によつて製造した無水フタル酸からナフトキノンを除く方法

Country Status (3)

Country Link
JP (1) JPS59176271A (enrdf_load_stackoverflow)
DE (1) DE3309310A1 (enrdf_load_stackoverflow)
ZA (1) ZA841915B (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19939629A1 (de) * 1999-08-20 2001-02-22 Basf Ag Verfahren zur Herstellung von spezifikationsgerechtem Phthalsäureanhydrid

Also Published As

Publication number Publication date
ZA841915B (en) 1984-11-28
JPS59176271A (ja) 1984-10-05
DE3309310A1 (de) 1984-09-20

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