CA1032493A - Method of treating the residues from the distillation of phthalic anhydride - Google Patents

Method of treating the residues from the distillation of phthalic anhydride

Info

Publication number
CA1032493A
CA1032493A CA196,867A CA196867A CA1032493A CA 1032493 A CA1032493 A CA 1032493A CA 196867 A CA196867 A CA 196867A CA 1032493 A CA1032493 A CA 1032493A
Authority
CA
Canada
Prior art keywords
distillation
residues
treating
phthalic anhydride
phthalic
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
CA196,867A
Other languages
English (en)
French (fr)
Other versions
CA196867S (en
Inventor
Jean-Claude Lafont
Rene Dumont
Maurice Goharel
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.)
Rhone Progil SA
Original Assignee
Rhone Progil SA
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 Rhone Progil SA filed Critical Rhone Progil SA
Application granted granted Critical
Publication of CA1032493A publication Critical patent/CA1032493A/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
    • C07C51/54—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)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Furan Compounds (AREA)
CA196,867A 1973-04-05 1974-04-04 Method of treating the residues from the distillation of phthalic anhydride Expired CA1032493A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7312301A FR2224435B1 (ja) 1973-04-05 1973-04-05

Publications (1)

Publication Number Publication Date
CA1032493A true CA1032493A (en) 1978-06-06

Family

ID=9117470

Family Applications (1)

Application Number Title Priority Date Filing Date
CA196,867A Expired CA1032493A (en) 1973-04-05 1974-04-04 Method of treating the residues from the distillation of phthalic anhydride

Country Status (11)

Country Link
US (1) US3923839A (ja)
JP (1) JPS5241251B2 (ja)
BE (1) BE813322A (ja)
CA (1) CA1032493A (ja)
DE (1) DE2416457C3 (ja)
FR (1) FR2224435B1 (ja)
GB (1) GB1416847A (ja)
IT (1) IT1004154B (ja)
NL (1) NL169315C (ja)
PH (1) PH10792A (ja)
YU (1) YU39917B (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5845435B2 (ja) * 1977-05-06 1983-10-08 新日鐵化学株式会社 無水フタル酸蒸留残渣の処理方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2333368A (en) * 1940-06-14 1943-11-02 Allied Chem & Dye Corp Hydration of phthalic anhydride
NL253742A (ja) * 1959-07-13
DE1266748C2 (de) * 1966-05-21 1973-07-19 Basf Ag Verfahren zur Verhinderung der Verkrustung von Heizflaechen bei der kontinuierlichen Destillation von Phthalsaeureanhydrid
DE1768817B1 (de) * 1968-07-03 1972-04-27 Zieren Chemiebau Gmbh Dr A Verfahren zur Reinigung von rohem Phthalsaeureanhydrid durch Destillation

Also Published As

Publication number Publication date
BE813322A (fr) 1974-10-04
NL169315B (nl) 1982-02-01
YU92974A (en) 1982-02-28
PH10792A (en) 1977-09-06
FR2224435B1 (ja) 1976-11-12
YU39917B (en) 1985-06-30
NL169315C (nl) 1982-07-01
DE2416457B2 (de) 1978-01-05
JPS5029526A (ja) 1975-03-25
DE2416457C3 (de) 1984-09-06
US3923839A (en) 1975-12-02
JPS5241251B2 (ja) 1977-10-17
NL7404618A (ja) 1974-10-08
FR2224435A1 (ja) 1974-10-31
DE2416457A1 (de) 1974-10-24
GB1416847A (en) 1975-12-10
IT1004154B (it) 1976-07-10

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