ES404182A1 - Preparation of terephthalic acid isophthalic acid and the monomethyl esters thereof - Google Patents

Preparation of terephthalic acid isophthalic acid and the monomethyl esters thereof

Info

Publication number
ES404182A1
ES404182A1 ES72404182A ES404182A ES404182A1 ES 404182 A1 ES404182 A1 ES 404182A1 ES 72404182 A ES72404182 A ES 72404182A ES 404182 A ES404182 A ES 404182A ES 404182 A1 ES404182 A1 ES 404182A1
Authority
ES
Spain
Prior art keywords
acid
preparation
monomethyl esters
terephthalic acid
isophthalic 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
ES72404182A
Other languages
Spanish (es)
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.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel 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
Priority claimed from DE19712132908 external-priority patent/DE2132908A1/en
Priority claimed from DE19712132910 external-priority patent/DE2132910A1/en
Priority claimed from DE19712132909 external-priority patent/DE2132909A1/en
Application filed by Dynamit Nobel AG filed Critical Dynamit Nobel AG
Publication of ES404182A1 publication Critical patent/ES404182A1/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
    • C07C51/16—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

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

Procedure for the preparation of terephthalic acid, isophthalic acid or its monomethyl esters by oxidation of para-xylene, meta-xylene or the corresponding liquid phase methyl esters of toluilic acid with the joint use of a catalyst containing cobalt and bromine at elevated temperature and high pressure; characterized in that the oxidation is carried out in a solution in acetic acid of alkali metal acetate. (Machine-translation by Google Translate, not legally binding)
ES72404182A 1971-07-02 1972-06-23 Preparation of terephthalic acid isophthalic acid and the monomethyl esters thereof Expired ES404182A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19712132908 DE2132908A1 (en) 1971-07-02 1971-07-02 Terephthalic/isophthalic acid - by oxidising xylenes in soln of alkali metal acetate in acetic acid
DE19712132910 DE2132910A1 (en) 1971-07-02 1971-07-02 Terephthalic/isophthalic acid - by oxidising xylenes in soln of alkali metal acetate in acetic acid
DE19712132909 DE2132909A1 (en) 1971-07-02 1971-07-02 Terephthalic/isophthalic acid - by oxidising xylenes in soln of alkali metal acetate in acetic acid

Publications (1)

Publication Number Publication Date
ES404182A1 true ES404182A1 (en) 1975-06-01

Family

ID=27183529

Family Applications (1)

Application Number Title Priority Date Filing Date
ES72404182A Expired ES404182A1 (en) 1971-07-02 1972-06-23 Preparation of terephthalic acid isophthalic acid and the monomethyl esters thereof

Country Status (14)

Country Link
AR (1) AR192460A1 (en)
AU (1) AU462394B2 (en)
BE (1) BE785615A (en)
CA (1) CA979921A (en)
CH (1) CH572885A5 (en)
CS (1) CS168593B2 (en)
DD (1) DD96700A5 (en)
ES (1) ES404182A1 (en)
FR (1) FR2144722B1 (en)
GB (1) GB1389478A (en)
IT (1) IT965867B (en)
NL (1) NL7207977A (en)
PL (1) PL82612B1 (en)
RO (1) RO59928A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2104512B1 (en) * 1995-09-21 1998-07-01 Interquisa INDUSTRIAL PROCEDURE FOR THE MANUFACTURE OF AROMATIC CARBOXYL ACIDS.
US7550627B2 (en) 2005-03-08 2009-06-23 Eastman Chemical Company Processes for producing aromatic dicarboxylic acids
EP2522426B1 (en) 2011-05-12 2014-02-12 King Saud University Method for preparing carboxylic acids

Also Published As

Publication number Publication date
FR2144722B1 (en) 1976-08-06
BE785615A (en) 1972-10-16
GB1389478A (en) 1975-04-03
FR2144722A1 (en) 1973-02-16
PL82612B1 (en) 1975-10-31
NL7207977A (en) 1973-01-04
DD96700A5 (en) 1973-04-05
CH572885A5 (en) 1976-02-27
CS168593B2 (en) 1976-06-29
AU462394B2 (en) 1975-06-26
CA979921A (en) 1975-12-16
IT965867B (en) 1974-02-11
AU4370172A (en) 1974-01-03
AR192460A1 (en) 1973-02-21
RO59928A (en) 1976-11-15

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