CA944361A - Purification of terephthalic acid - Google Patents

Purification of terephthalic acid

Info

Publication number
CA944361A
CA944361A CA122,590A CA122590A CA944361A CA 944361 A CA944361 A CA 944361A CA 122590 A CA122590 A CA 122590A CA 944361 A CA944361 A CA 944361A
Authority
CA
Canada
Prior art keywords
purification
terephthalic acid
terephthalic
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
CA122,590A
Other languages
English (en)
Other versions
CA122590S (en
Inventor
Hans-Juergen Nienburg
Wolfgang Eisfeld
Harro Wache
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.)
BASF SE
Original Assignee
Badische Anilin and Sodafabrik AG
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 Badische Anilin and Sodafabrik AG filed Critical Badische Anilin and Sodafabrik AG
Application granted granted Critical
Publication of CA944361A publication Critical patent/CA944361A/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
    • C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
CA122,590A 1970-09-16 1971-09-10 Purification of terephthalic acid Expired CA944361A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2045747A DE2045747B2 (de) 1970-09-16 1970-09-16 Verfahren zur Reinigung von Terephthalsäure

Publications (1)

Publication Number Publication Date
CA944361A true CA944361A (en) 1974-03-26

Family

ID=5782582

Family Applications (1)

Application Number Title Priority Date Filing Date
CA122,590A Expired CA944361A (en) 1970-09-16 1971-09-10 Purification of terephthalic acid

Country Status (8)

Country Link
US (1) US3799976A (de)
BE (1) BE772277A (de)
CA (1) CA944361A (de)
DE (1) DE2045747B2 (de)
FR (1) FR2105957A5 (de)
GB (1) GB1353786A (de)
IT (1) IT942170B (de)
NL (1) NL7112327A (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2804156C2 (de) * 1977-01-31 1982-04-08 Teijin Ltd., Osaka Verfahren zur Herstellung von Terephthalsäure
US4467110A (en) * 1981-10-29 1984-08-21 Standard Oil Company (Indiana) Process for purification of crude terephthalic acid
US4467111A (en) * 1981-10-29 1984-08-21 Standard Oil Company (Indiana) Process for purification of crude terephthalic acid
WO1997024311A1 (en) * 1995-12-30 1997-07-10 Sunkyong Industries Co., Ltd. Process for manufacturing terephthalic acid
US6639104B2 (en) * 1999-12-10 2003-10-28 Inca International S.P.A. Process for the recovery of purified terephthalic acid (PTA)
US7485747B2 (en) * 2001-06-04 2009-02-03 Eastman Chemical Company Two stage oxidation process for the production of aromatic dicarboxylic acids
US6689903B2 (en) * 2001-06-04 2004-02-10 Eastman Chemical Company Crystallization method for production of purified aromatic dicarboxylic acids
US7196215B2 (en) * 2001-06-04 2007-03-27 Eastman Chemical Company Process for the production of purified terephthalic acid
US20030120109A1 (en) * 2001-12-20 2003-06-26 Rosen Bruce I. Purification of a crude acid mixture
US7161027B2 (en) * 2002-12-09 2007-01-09 Eastman Chemical Company Process for the oxidative purification of terephthalic acid
US7074954B2 (en) * 2002-12-09 2006-07-11 Eastman Chemical Company Process for the oxidative purification of terephthalic acid
US20050256335A1 (en) * 2004-05-12 2005-11-17 Ovidiu Marin Providing gases to aromatic carboxylic acid manufacturing processes
US20050283022A1 (en) * 2004-06-18 2005-12-22 Sheppard Ronald B Filtrate preparation process for terephthalic acid filtrate treatment

Also Published As

Publication number Publication date
DE2045747B2 (de) 1978-09-07
FR2105957A5 (de) 1972-04-28
GB1353786A (en) 1974-05-22
IT942170B (it) 1973-03-20
BE772277A (fr) 1972-03-07
NL7112327A (de) 1972-03-20
US3799976A (en) 1974-03-26
DE2045747A1 (de) 1972-03-23

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