DE1768572B1 - Verfahren zur Reinigung von Terephthalsaeure - Google Patents

Verfahren zur Reinigung von Terephthalsaeure

Info

Publication number
DE1768572B1
DE1768572B1 DE19681768572 DE1768572A DE1768572B1 DE 1768572 B1 DE1768572 B1 DE 1768572B1 DE 19681768572 DE19681768572 DE 19681768572 DE 1768572 A DE1768572 A DE 1768572A DE 1768572 B1 DE1768572 B1 DE 1768572B1
Authority
DE
Germany
Prior art keywords
acid
terephthalic acid
bromine
chlorine
formylbenzoic
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.)
Withdrawn
Application number
DE19681768572
Other languages
German (de)
English (en)
Inventor
Jean-Marie Bodin
Maximilien Grunfeld
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.)
Rhone Poulenc SA
Original Assignee
Rhone Poulenc SA
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 Rhone Poulenc SA filed Critical Rhone Poulenc SA
Publication of DE1768572B1 publication Critical patent/DE1768572B1/de
Withdrawn legal-status Critical Current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
    • C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
    • 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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DE19681768572 1967-05-29 1968-05-29 Verfahren zur Reinigung von Terephthalsaeure Withdrawn DE1768572B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR108247A FR1547429A (fr) 1967-05-29 1967-05-29 Procédé de purification de l'acide téréphtalique

Publications (1)

Publication Number Publication Date
DE1768572B1 true DE1768572B1 (de) 1972-04-27

Family

ID=8631836

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19681768572 Withdrawn DE1768572B1 (de) 1967-05-29 1968-05-29 Verfahren zur Reinigung von Terephthalsaeure

Country Status (8)

Country Link
US (1) US3649683A (cg-RX-API-DMAC7.html)
BE (1) BE715795A (cg-RX-API-DMAC7.html)
CH (1) CH479518A (cg-RX-API-DMAC7.html)
DE (1) DE1768572B1 (cg-RX-API-DMAC7.html)
FR (1) FR1547429A (cg-RX-API-DMAC7.html)
GB (1) GB1177330A (cg-RX-API-DMAC7.html)
LU (1) LU56154A1 (cg-RX-API-DMAC7.html)
NL (1) NL6807183A (cg-RX-API-DMAC7.html)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
NL6807183A (cg-RX-API-DMAC7.html) 1968-12-02
US3649683A (en) 1972-03-14
BE715795A (cg-RX-API-DMAC7.html) 1968-11-28
GB1177330A (en) 1970-01-07
CH479518A (fr) 1969-10-15
LU56154A1 (cg-RX-API-DMAC7.html) 1969-03-20
FR1547429A (fr) 1968-11-29

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Legal Events

Date Code Title Description
E77 Valid patent as to the heymanns-index 1977
8339 Ceased/non-payment of the annual fee