DE1242211B - Verfahren zur kontinuerlichen Gewinnung reiner Benzoldicarbonsaeuren - Google Patents

Verfahren zur kontinuerlichen Gewinnung reiner Benzoldicarbonsaeuren

Info

Publication number
DE1242211B
DE1242211B DEC26626A DEC0026626A DE1242211B DE 1242211 B DE1242211 B DE 1242211B DE C26626 A DEC26626 A DE C26626A DE C0026626 A DEC0026626 A DE C0026626A DE 1242211 B DE1242211 B DE 1242211B
Authority
DE
Germany
Prior art keywords
acid
solution
benzene dicarboxylic
crude
dicarboxylic acids
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.)
Pending
Application number
DEC26626A
Other languages
German (de)
English (en)
Inventor
Eugene Lee Ringwald
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.)
Monsanto Co
Original Assignee
Monsanto Co
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 Monsanto Co filed Critical Monsanto Co
Publication of DE1242211B publication Critical patent/DE1242211B/de
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
    • C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
    • C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
    • C08G63/16—Dicarboxylic acids and dihydroxy compounds
    • C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
    • C08G63/181—Acids containing aromatic rings
    • 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
    • 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
    • C07C51/47—Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption
    • 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
    • C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DEC26626A 1961-04-25 1962-04-04 Verfahren zur kontinuerlichen Gewinnung reiner Benzoldicarbonsaeuren Pending DE1242211B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10544561A 1961-04-25 1961-04-25

Publications (1)

Publication Number Publication Date
DE1242211B true DE1242211B (de) 1967-06-15

Family

ID=22305891

Family Applications (1)

Application Number Title Priority Date Filing Date
DEC26626A Pending DE1242211B (de) 1961-04-25 1962-04-04 Verfahren zur kontinuerlichen Gewinnung reiner Benzoldicarbonsaeuren

Country Status (6)

Country Link
BE (1) BE615996A (forum.php)
CH (1) CH410899A (forum.php)
DE (1) DE1242211B (forum.php)
FR (1) FR1323814A (forum.php)
GB (1) GB953482A (forum.php)
NL (1) NL276789A (forum.php)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6054610A (en) 1995-06-07 2000-04-25 Hfm International, Inc. Method and apparatus for preparing purified terephthalic acid and isophthalic acid from mixed xylenes
US5929274A (en) 1995-06-07 1999-07-27 Hfm International, Inc. Method to reduce carboxybenzaldehyde isomers in terephthalic acid or isophthalic acid
US6013835A (en) 1995-06-07 2000-01-11 Hfm International, Inc. Method and apparatus for preparing purified terephthalic acid

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB695170A (en) * 1950-09-07 1953-08-05 Bofors Ab Method of purifying organic compounds
GB777782A (en) * 1955-06-24 1957-06-26 Ici Ltd Purification of terephthalic acid
DE1025875B (de) * 1954-08-18 1958-03-13 Basf Ag Verfahren zur Abtrennung von Begleitstoffen aus kristallinen Stoffen
DE1117100B (de) 1958-11-18 1961-11-16 Chemstrand Corp Verfahren zur Reinigung von Iso- und bzw. oder Terephthalsaeure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB695170A (en) * 1950-09-07 1953-08-05 Bofors Ab Method of purifying organic compounds
DE1025875B (de) * 1954-08-18 1958-03-13 Basf Ag Verfahren zur Abtrennung von Begleitstoffen aus kristallinen Stoffen
GB777782A (en) * 1955-06-24 1957-06-26 Ici Ltd Purification of terephthalic acid
DE1117100B (de) 1958-11-18 1961-11-16 Chemstrand Corp Verfahren zur Reinigung von Iso- und bzw. oder Terephthalsaeure

Also Published As

Publication number Publication date
FR1323814A (fr) 1963-04-12
NL276789A (forum.php)
CH410899A (de) 1966-04-15
BE615996A (forum.php) 1962-10-04
GB953482A (en) 1964-03-25

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