CH410899A - Kontinuierliches Verfahren zum Reinigen roher Phthalsäure - Google Patents

Kontinuierliches Verfahren zum Reinigen roher Phthalsäure

Info

Publication number
CH410899A
CH410899A CH410462A CH410462A CH410899A CH 410899 A CH410899 A CH 410899A CH 410462 A CH410462 A CH 410462A CH 410462 A CH410462 A CH 410462A CH 410899 A CH410899 A CH 410899A
Authority
CH
Switzerland
Prior art keywords
phthalic acid
continuous process
purifying crude
crude phthalic
purifying
Prior art date
Application number
CH410462A
Other languages
German (de)
English (en)
Original Assignee
Monsanto Chemicals
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 Chemicals filed Critical Monsanto Chemicals
Publication of CH410899A publication Critical patent/CH410899A/de

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)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
CH410462A 1961-04-25 1962-04-04 Kontinuierliches Verfahren zum Reinigen roher Phthalsäure CH410899A (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
CH410899A true CH410899A (de) 1966-04-15

Family

ID=22305891

Family Applications (1)

Application Number Title Priority Date Filing Date
CH410462A CH410899A (de) 1961-04-25 1962-04-04 Kontinuierliches Verfahren zum Reinigen roher Phthalsäure

Country Status (6)

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

Families Citing this family (3)

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

Family Cites Families (3)

* 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

Also Published As

Publication number Publication date
GB953482A (en) 1964-03-25
FR1323814A (fr) 1963-04-12
BE615996A (nl) 1962-10-04
DE1242211B (de) 1967-06-15
NL276789A (nl)

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