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ES487596A1 - Procedimiento para la obtencion de acidos dicarboxilicos pu-ros,y de sus anhidridos y-o esteres - Google Patents

Procedimiento para la obtencion de acidos dicarboxilicos pu-ros,y de sus anhidridos y-o esteres

Info

Publication number
ES487596A1
ES487596A1 ES487596A ES487596A ES487596A1 ES 487596 A1 ES487596 A1 ES 487596A1 ES 487596 A ES487596 A ES 487596A ES 487596 A ES487596 A ES 487596A ES 487596 A1 ES487596 A1 ES 487596A1
Authority
ES
Spain
Prior art keywords
anhydrides
esters
dicarboxylic acids
gas
acid
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
ES487596A
Other languages
English (en)
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.)
Krupp Koppers GmbH
Original Assignee
Krupp Koppers GmbH
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 Krupp Koppers GmbH filed Critical Krupp Koppers GmbH
Publication of ES487596A1 publication Critical patent/ES487596A1/es
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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids

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)

Abstract

Procedimiento para la obtención de ácidos dicarboxílicos puros y de sus anhídridos y/o ésteres a partir de productos brutos que contienen estos compuestos, caracterizado porque los productos brutos son sometidos a una extracción con gases o mezclas de gases, que se encuentran en el estado hipercrítico, a temperaturas por encima de la temperatura crítica y a presiones por encima de la presión crítica del gas o de la mezcla de gases que se utiliza.
ES487596A 1979-03-21 1980-01-10 Procedimiento para la obtencion de acidos dicarboxilicos pu-ros,y de sus anhidridos y-o esteres Expired ES487596A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792910973 DE2910973A1 (de) 1979-03-21 1979-03-21 Verfahren zur gewinnung von reinen dicarbonsaeuren, deren anhydriden und/oder estern

Publications (1)

Publication Number Publication Date
ES487596A1 true ES487596A1 (es) 1980-06-16

Family

ID=6065942

Family Applications (1)

Application Number Title Priority Date Filing Date
ES487596A Expired ES487596A1 (es) 1979-03-21 1980-01-10 Procedimiento para la obtencion de acidos dicarboxilicos pu-ros,y de sus anhidridos y-o esteres

Country Status (5)

Country Link
EP (1) EP0016899A1 (es)
JP (1) JPS55141432A (es)
DE (1) DE2910973A1 (es)
ES (1) ES487596A1 (es)
NO (1) NO794217L (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5349084A (en) * 1990-09-28 1994-09-20 Idemitsu Petrochemical Co., Ltd. Process for recovering high-purity organic acid
US5449820A (en) * 1994-03-15 1995-09-12 Mitsubishi Chemical Corporation Method of preparing high purity 2,6-naphthalene dicarboxylic acid

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1493190C3 (de) * 1963-04-16 1980-10-16 Studiengesellschaft Kohle Mbh, 4330 Muelheim Verfahren zur Trennung von Stoffgemischen
GB1173746A (en) * 1966-02-22 1969-12-10 British Petroleum Co Method of preparation of Lubricating Oils
GB1171776A (en) * 1966-02-22 1969-11-26 British Petroleum Co De-Waxing Process

Also Published As

Publication number Publication date
DE2910973A1 (de) 1980-10-09
JPS55141432A (en) 1980-11-05
EP0016899A1 (de) 1980-10-15
NO794217L (no) 1980-09-23

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