FR1323814A - Continuous process for the purification of phthalic acid - Google Patents

Continuous process for the purification of phthalic acid

Info

Publication number
FR1323814A
FR1323814A FR893473A FR893473A FR1323814A FR 1323814 A FR1323814 A FR 1323814A FR 893473 A FR893473 A FR 893473A FR 893473 A FR893473 A FR 893473A FR 1323814 A FR1323814 A FR 1323814A
Authority
FR
France
Prior art keywords
purification
phthalic acid
continuous process
continuous
phthalic
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
FR893473A
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.)
Solutia Inc
Original Assignee
Chemstrand Corp
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 Chemstrand Corp filed Critical Chemstrand Corp
Application granted granted Critical
Publication of FR1323814A publication Critical patent/FR1323814A/en
Expired 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)
FR893473A 1961-04-25 1962-04-05 Continuous process for the purification of phthalic acid Expired FR1323814A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
FR1323814A true FR1323814A (en) 1963-04-12

Family

ID=22305891

Family Applications (1)

Application Number Title Priority Date Filing Date
FR893473A Expired FR1323814A (en) 1961-04-25 1962-04-05 Continuous process for the purification of phthalic acid

Country Status (6)

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

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

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 (en) * 1954-08-18 1958-03-13 Basf Ag Process for the separation of accompanying substances from crystalline substances
GB777782A (en) * 1955-06-24 1957-06-26 Ici Ltd Purification of terephthalic acid

Also Published As

Publication number Publication date
DE1242211B (en) 1967-06-15
NL276789A (en)
CH410899A (en) 1966-04-15
BE615996A (en) 1962-10-04
GB953482A (en) 1964-03-25

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