FR1244576A - Process for the purification of phthalic acids - Google Patents

Process for the purification of phthalic acids

Info

Publication number
FR1244576A
FR1244576A FR810281A FR810281A FR1244576A FR 1244576 A FR1244576 A FR 1244576A FR 810281 A FR810281 A FR 810281A FR 810281 A FR810281 A FR 810281A FR 1244576 A FR1244576 A FR 1244576A
Authority
FR
France
Prior art keywords
purification
phthalic acids
phthalic
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.)
Expired
Application number
FR810281A
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 FR1244576A publication Critical patent/FR1244576A/en
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
    • C07C51/42—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)
  • Polyesters Or Polycarbonates (AREA)
FR810281A 1958-11-18 1959-11-16 Process for the purification of phthalic acids Expired FR1244576A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US77460958A 1958-11-18 1958-11-18

Publications (1)

Publication Number Publication Date
FR1244576A true FR1244576A (en) 1960-10-28

Family

ID=25101755

Family Applications (1)

Application Number Title Priority Date Filing Date
FR810281A Expired FR1244576A (en) 1958-11-18 1959-11-16 Process for the purification of phthalic acids

Country Status (6)

Country Link
BE (1) BE584755A (en)
CH (1) CH388922A (en)
DE (1) DE1117100B (en)
FR (1) FR1244576A (en)
GB (1) GB932246A (en)
NL (1) NL245503A (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
NL245503A (en)
BE584755A (en) 1960-05-17
CH388922A (en) 1965-03-15
DE1117100B (en) 1961-11-16
GB932246A (en) 1963-07-24

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