ZA953829B - Liquid phthalic anhydride recovery process using a rectification tower - Google Patents

Liquid phthalic anhydride recovery process using a rectification tower

Info

Publication number
ZA953829B
ZA953829B ZA953829A ZA953829A ZA953829B ZA 953829 B ZA953829 B ZA 953829B ZA 953829 A ZA953829 A ZA 953829A ZA 953829 A ZA953829 A ZA 953829A ZA 953829 B ZA953829 B ZA 953829B
Authority
ZA
South Africa
Prior art keywords
recovery process
phthalic anhydride
rectification tower
liquid phthalic
anhydride recovery
Prior art date
Application number
ZA953829A
Other languages
English (en)
Inventor
Herbert Peter Dengler
James Joseph Baiel
Original Assignee
Exxon Chemical Patents Inc
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 Exxon Chemical Patents Inc filed Critical Exxon Chemical Patents Inc
Publication of ZA953829B publication Critical patent/ZA953829B/xx

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)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Furan Compounds (AREA)
ZA953829A 1994-05-12 1995-05-11 Liquid phthalic anhydride recovery process using a rectification tower ZA953829B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/241,876 US5508443A (en) 1994-05-12 1994-05-12 Liquid phthalic anhydride recovery process

Publications (1)

Publication Number Publication Date
ZA953829B true ZA953829B (en) 1996-03-19

Family

ID=22912516

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA953829A ZA953829B (en) 1994-05-12 1995-05-11 Liquid phthalic anhydride recovery process using a rectification tower

Country Status (8)

Country Link
US (2) US5508443A (xx)
EP (1) EP0759023B1 (xx)
CN (1) CN1073544C (xx)
CO (1) CO4790104A1 (xx)
DE (1) DE69513970T2 (xx)
TW (1) TW426676B (xx)
WO (2) WO1995031428A1 (xx)
ZA (1) ZA953829B (xx)

Families Citing this family (9)

* 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
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
WO2011100081A1 (en) 2010-02-12 2011-08-18 Exxonmobil Chemical Patents Inc. A Corporation Of The State Of Delaware Processes utilizing switch condensers
WO2012099665A1 (en) 2011-01-21 2012-07-26 Exxonmobil Chemical Patents Inc. Apparatuses including support member modifications and processes related thereto
US20150154378A1 (en) * 2013-12-03 2015-06-04 Xerox Corporation Apparatus and method for dispensing medications
CN104991531B (zh) * 2015-05-22 2017-11-21 中冶南方工程技术有限公司 一种确定钢铁企业副产煤气系统优化调度可行解的方法
RU2694224C1 (ru) * 2018-11-02 2019-07-10 Ооо "Фамэк" Способ дистилляции фталевого ангидрида-сырца
WO2021103337A1 (zh) * 2019-11-29 2021-06-03 沈福昌 精对苯二甲酸残渣无害化回收焚烧处理方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3178452A (en) * 1965-04-13 Concentrator so
US2098047A (en) * 1935-11-21 1937-11-02 American Cyanamid & Chem Corp Process of recovering maleic acid from the fume gases containing small amounts thereof
FR1121645A (fr) * 1955-02-11 1956-08-22 Saint Gobain Procédé pour la séparation et la purification de l'anhydride phtalique
US3397121A (en) * 1963-10-21 1968-08-13 Halcon International Inc Purification of phthalic anhydride
DE1295540B (de) * 1965-05-04 1969-05-22 Metallgesellschaft Ag Verfahren zur Herstellung von reinstem Phthalsaeureanhydrid
US3303203A (en) * 1965-07-06 1967-02-07 Witco Chemical Corp Purification of crude phthalic anhydride
DE1259870B (de) * 1966-05-25 1968-02-01 Basf Ag Verfahren zur Vorreinigung von rohem Phthalsaeureanhydrid
US3681399A (en) * 1968-02-07 1972-08-01 Zieren Chemiebau Gmbh Dr A Yields in the preparation of purified phthalic anhydride
DE1768059C2 (de) * 1968-03-27 1975-08-28 Davy Powergas Gmbh, 5000 Koeln Verfahren zur Gewinnung von vorgereinigtem Phthalsäureanhydrid
NL6905713A (xx) * 1968-04-13 1969-10-15
US3725211A (en) * 1972-03-01 1973-04-03 Zieren Chemiebau Gmbh Dr A Continuous distillation of phthalic anhydride with vapor side stream recovery
DE2855629C2 (de) * 1978-12-22 1986-11-13 Davy McKee AG, 6000 Frankfurt Verfahren zur kontinuierlichen Abtrennung von Phthalsäureanhydrid aus den Reaktionsgasen der katalytischen Oxidation von o-Xylol und/oder Naphthalin
DE2855630C2 (de) * 1978-12-22 1982-09-16 Davy McKee AG, 6000 Frankfurt Verfahren zur kontinuierlichen Abtrennung von Phthalsäureanhydrid aus den Reaktionsgasen der katalytischen Oxidation von o-Xylol und/oder Naphthalin
DE3207208A1 (de) * 1982-02-27 1983-09-08 Basf Ag, 6700 Ludwigshafen Verfahren zur kontinuierlichen gewinnung von phthalsaeureanhydrid und maleinsaeureanhydrid aus reaktionsgasen
US5214157A (en) * 1991-05-07 1993-05-25 Exxon Chemical Patents Inc. Process for the disposal of phthalic anhydride decomposer vapors
US5508443A (en) * 1994-05-12 1996-04-16 Exxon Chemical Patents Inc. Liquid phthalic anhydride recovery process

Also Published As

Publication number Publication date
DE69513970T2 (de) 2000-06-29
EP0759023B1 (en) 1999-12-15
CN1150417A (zh) 1997-05-21
CN1073544C (zh) 2001-10-24
US5731443A (en) 1998-03-24
WO1995031427A1 (en) 1995-11-23
WO1995031428A1 (en) 1995-11-23
EP0759023A1 (en) 1997-02-26
CO4790104A1 (es) 1999-05-31
TW426676B (en) 2001-03-21
DE69513970D1 (de) 2000-01-20
US5508443A (en) 1996-04-16

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