FR1121645A - Process for the separation and purification of phthalic anhydride - Google Patents

Process for the separation and purification of phthalic anhydride

Info

Publication number
FR1121645A
FR1121645A FR1121645DA FR1121645A FR 1121645 A FR1121645 A FR 1121645A FR 1121645D A FR1121645D A FR 1121645DA FR 1121645 A FR1121645 A FR 1121645A
Authority
FR
France
Prior art keywords
purification
separation
phthalic anhydride
phthalic
anhydride
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
Other languages
French (fr)
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.)
Compagnie de Saint Gobain SA
Original Assignee
Compagnie de Saint Gobain SA
Manufactures des Glaces et Produits Chimiques de Saint Gobain 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 Compagnie de Saint Gobain SA, Manufactures des Glaces et Produits Chimiques de Saint Gobain SA filed Critical Compagnie de Saint Gobain SA
Application granted granted Critical
Publication of FR1121645A publication Critical patent/FR1121645A/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)
FR1121645D 1955-02-11 1955-02-11 Process for the separation and purification of phthalic anhydride Expired FR1121645A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1121645T 1955-02-11

Publications (1)

Publication Number Publication Date
FR1121645A true FR1121645A (en) 1956-08-22

Family

ID=9632186

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1121645D Expired FR1121645A (en) 1955-02-11 1955-02-11 Process for the separation and purification of phthalic anhydride

Country Status (1)

Country Link
FR (1) FR1121645A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5508443A (en) * 1994-05-12 1996-04-16 Exxon Chemical Patents Inc. Liquid phthalic anhydride recovery process
US5718808A (en) * 1996-11-29 1998-02-17 Exxon Chemical Patents Inc. Solvent assisted process for recovery of phthalic anhydride in the liquid phase by distillation
US5730844A (en) * 1996-11-29 1998-03-24 Exxon Chemical Patents Inc. Liquid phthalic anhydride recovery process using a rectification tower with benzoic acid control
US5869700A (en) * 1997-02-21 1999-02-09 Exxon Chemical Patents Inc. Method for recovering phthalic anhydride/maleic anhydride mixtures by distillation
CN117986217A (en) * 2024-04-03 2024-05-07 南京化学试剂股份有限公司 Method for treating high-content phthalic anhydride raw material
CN117986217B (en) * 2024-04-03 2024-06-04 南京化学试剂股份有限公司 Phthalic anhydride raw material treatment method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5508443A (en) * 1994-05-12 1996-04-16 Exxon Chemical Patents Inc. Liquid phthalic anhydride recovery process
US5731443A (en) * 1994-05-12 1998-03-24 Exxon Chemical Patents Inc. Liquid phthalic anhydride recovery process using a rectification tower
US5718808A (en) * 1996-11-29 1998-02-17 Exxon Chemical Patents Inc. Solvent assisted process for recovery of phthalic anhydride in the liquid phase by distillation
US5730844A (en) * 1996-11-29 1998-03-24 Exxon Chemical Patents Inc. Liquid phthalic anhydride recovery process using a rectification tower with benzoic acid control
US5869700A (en) * 1997-02-21 1999-02-09 Exxon Chemical Patents Inc. Method for recovering phthalic anhydride/maleic anhydride mixtures by distillation
CN117986217A (en) * 2024-04-03 2024-05-07 南京化学试剂股份有限公司 Method for treating high-content phthalic anhydride raw material
CN117986217B (en) * 2024-04-03 2024-06-04 南京化学试剂股份有限公司 Phthalic anhydride raw material treatment method

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