FR2386511A1 - Procede de recuperation du catalyseur et du solvant a partir de la liqueur mere d'un procede de synthese de l'acide terephtalique - Google Patents

Procede de recuperation du catalyseur et du solvant a partir de la liqueur mere d'un procede de synthese de l'acide terephtalique

Info

Publication number
FR2386511A1
FR2386511A1 FR7809488A FR7809488A FR2386511A1 FR 2386511 A1 FR2386511 A1 FR 2386511A1 FR 7809488 A FR7809488 A FR 7809488A FR 7809488 A FR7809488 A FR 7809488A FR 2386511 A1 FR2386511 A1 FR 2386511A1
Authority
FR
France
Prior art keywords
mother liquor
catalyst
recovering
synthesis
solvent
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.)
Granted
Application number
FR7809488A
Other languages
English (en)
Other versions
FR2386511B1 (fr
Inventor
Piero Bortesi
Sergio Tonti
Raffaele Tancorra
Giuseppe Costantini
Mauro Serafini
Pietro Paoli
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.)
Montedison SpA
Original Assignee
Montedison SpA
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
Priority claimed from IT2205877A external-priority patent/IT1075688B/it
Priority claimed from IT22408/77A external-priority patent/IT1075317B/it
Application filed by Montedison SpA filed Critical Montedison SpA
Publication of FR2386511A1 publication Critical patent/FR2386511A1/fr
Application granted granted Critical
Publication of FR2386511B1 publication Critical patent/FR2386511B1/fr
Granted 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
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
    • C07C51/255—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting
    • C07C51/265—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting having alkyl side chains which are oxidised to carboxyl groups
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/584—Recycling of catalysts

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)

Abstract

La présente invention a pour objet un procédé de récupération du catalyseur et du solvant à partir de la liqueur mère d'un procédé de synthèse de l'acide téréphtalique. Ce procédé est caractérisé en ce que l'on abaisse la quantité de solides, en suspension dans la liqueur mère, en dessous de 0,30 % et, de préférence, 0,05 % en poids par rapport à la liqueur mère et qu'ensuite on sèche partiellement cette liqueur mère par distillation, de façon à ramener sa teneur en eau en dessous de 5 % en poids par rapport à l'acide acétique, en ce que l'on recycle, dans la zone d'oxydation, une partie de la liqueur mère partiellement séchée, renfermant au moins 50 % du système catalytique, présentant dans la liqueur mère primitive, et en ce qu'on introduit le reste de la liqueur partiellement séchée, sous forme d'une purge, dans une zone de traitements classiques de séparation et de régénération du catalyseur. Elle se rapporte à un tel procédé.
FR7809488A 1977-04-04 1978-03-31 Procede de recuperation du catalyseur et du solvant a partir de la liqueur mere d'un procede de synthese de l'acide terephtalique Granted FR2386511A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2205877A IT1075688B (it) 1977-04-04 1977-04-04 Metodo per il recupero del catalizzatore e del solvente dal liquido madre di un processo per la sintesi dell'acido tereftalico
IT22408/77A IT1075317B (it) 1977-04-13 1977-04-13 Metodo per l'anidrificazione del solvente e per il ricupero del sottoprodotto acetato di metile in un processo di sintesi dell'acido tereftalico

Publications (2)

Publication Number Publication Date
FR2386511A1 true FR2386511A1 (fr) 1978-11-03
FR2386511B1 FR2386511B1 (fr) 1980-07-25

Family

ID=26328080

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7809488A Granted FR2386511A1 (fr) 1977-04-04 1978-03-31 Procede de recuperation du catalyseur et du solvant a partir de la liqueur mere d'un procede de synthese de l'acide terephtalique

Country Status (10)

Country Link
JP (1) JPS53127430A (fr)
BR (1) BR7802069A (fr)
DE (1) DE2814448A1 (fr)
ES (1) ES468499A1 (fr)
FR (1) FR2386511A1 (fr)
GB (1) GB1593117A (fr)
IN (1) IN148106B (fr)
MX (1) MX148713A (fr)
NL (1) NL188282C (fr)
SU (1) SU1217250A3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2473903A1 (fr) * 1980-01-23 1981-07-24 Montedison Spa Procede de recuperation de catalyseurs

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4334086A (en) * 1981-03-16 1982-06-08 Labofina S.A. Production of terephthalic acid
BR9508815A (pt) * 1994-08-23 1997-11-18 Ici Plc Processos para produzir um ácido dicarboxilico aromático e para realizar a separação de água de um veículo de fase líquida contendo pelo menos um corpo componente por destilação azeotrópica
US6150553A (en) * 1998-08-11 2000-11-21 E. I. Du Pont De Nemours And Company Method for recovering methyl acetate and residual acetic acid in the production acid of pure terephthalic acid
WO2002068083A1 (fr) * 2001-02-27 2002-09-06 Mitsubishi Chemical Corporation Methode de distillation azeotropique
US7572936B2 (en) 2004-09-02 2009-08-11 Eastman Chemical Company Optimized liquid-phase oxidation
US7589231B2 (en) 2004-09-02 2009-09-15 Eastman Chemical Company Optimized liquid-phase oxidation
US7507857B2 (en) 2004-09-02 2009-03-24 Eastman Chemical Company Optimized liquid-phase oxidation
US7683210B2 (en) 2004-09-02 2010-03-23 Eastman Chemical Company Optimized liquid-phase oxidation
US7692036B2 (en) 2004-11-29 2010-04-06 Eastman Chemical Company Optimized liquid-phase oxidation
US7381836B2 (en) 2004-09-02 2008-06-03 Eastman Chemical Company Optimized liquid-phase oxidation
US7504535B2 (en) 2004-09-02 2009-03-17 Eastman Chemical Company Optimized liquid-phase oxidation
US7361784B2 (en) * 2004-09-02 2008-04-22 Eastman Chemical Company Optimized liquid-phase oxidation
US7910769B2 (en) 2004-09-02 2011-03-22 Eastman Chemical Company Optimized liquid-phase oxidation
US7582793B2 (en) 2004-09-02 2009-09-01 Eastman Chemical Company Optimized liquid-phase oxidation
US7568361B2 (en) 2004-09-02 2009-08-04 Eastman Chemical Company Optimized liquid-phase oxidation
US7741515B2 (en) 2004-09-02 2010-06-22 Eastman Chemical Company Optimized liquid-phase oxidation
US7692037B2 (en) 2004-09-02 2010-04-06 Eastman Chemical Company Optimized liquid-phase oxidation
US7884232B2 (en) 2005-06-16 2011-02-08 Eastman Chemical Company Optimized liquid-phase oxidation

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3557173A (en) * 1968-05-09 1971-01-19 Sinclair Research Inc Process for recovering cobalt acetate
FR2131502A5 (fr) * 1971-03-22 1972-11-10 Fmc Corp
FR2304255A7 (fr) * 1975-03-13 1976-10-08 Inst Francais Du Petrole Procede de fabrication d'acide terephtalique par oxydation du paraxylene

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE670307A (fr) * 1964-12-14 1900-01-01
DE2104909A1 (en) * 1971-02-03 1972-09-07 Chemische Fabrik Kalk GmbH, 5000 Köln Terephthalic acid prodn - by para-xylene oxidn with oxygen using cobalt and bromine compound catalysts
JPS5328420B2 (fr) * 1973-04-05 1978-08-15
JPS5328421B2 (fr) * 1973-05-15 1978-08-15
JPS5328901B2 (fr) * 1973-07-28 1978-08-17

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3557173A (en) * 1968-05-09 1971-01-19 Sinclair Research Inc Process for recovering cobalt acetate
FR2131502A5 (fr) * 1971-03-22 1972-11-10 Fmc Corp
FR2304255A7 (fr) * 1975-03-13 1976-10-08 Inst Francais Du Petrole Procede de fabrication d'acide terephtalique par oxydation du paraxylene

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2473903A1 (fr) * 1980-01-23 1981-07-24 Montedison Spa Procede de recuperation de catalyseurs

Also Published As

Publication number Publication date
FR2386511B1 (fr) 1980-07-25
JPS6241219B2 (fr) 1987-09-02
NL188282C (nl) 1992-05-18
NL7803368A (nl) 1978-10-06
BR7802069A (pt) 1979-01-23
JPS53127430A (en) 1978-11-07
IN148106B (fr) 1980-10-18
MX148713A (es) 1983-06-06
NL188282B (nl) 1991-12-16
DE2814448C2 (fr) 1991-05-23
SU1217250A3 (ru) 1986-03-07
ES468499A1 (es) 1979-01-01
DE2814448A1 (de) 1978-10-12
GB1593117A (en) 1981-07-15

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