[go: up one dir, main page]

GB1110684A - Esterification of aromatic dicarboxylic acids - Google Patents

Esterification of aromatic dicarboxylic acids

Info

Publication number
GB1110684A
GB1110684A GB1040466A GB1040466A GB1110684A GB 1110684 A GB1110684 A GB 1110684A GB 1040466 A GB1040466 A GB 1040466A GB 1040466 A GB1040466 A GB 1040466A GB 1110684 A GB1110684 A GB 1110684A
Authority
GB
United Kingdom
Prior art keywords
acid
stream
alcohol
diester
dicarboxylic 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
GB1040466A
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.)
ExxonMobil Oil Corp
Original Assignee
Mobil Oil 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 Mobil Oil Corp filed Critical Mobil Oil Corp
Publication of GB1110684A publication Critical patent/GB1110684A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/76—Esters of carboxylic acids having a carboxyl group bound to a carbon atom of a six-membered aromatic ring
    • C07C69/80—Phthalic acid esters
    • C07C69/82—Terephthalic acid esters
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/76—Esters of carboxylic acids having a carboxyl group bound to a carbon atom of a six-membered aromatic ring
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/76—Esters of carboxylic acids having a carboxyl group bound to a carbon atom of a six-membered aromatic ring
    • C07C69/80—Phthalic acid esters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)

Abstract

Diesters of aromatic dicarboxylic acids are prepared in a process comprising preparing a feed vapour mixture by adding the acid to a carrier stream of an alcohol in vapour form, heating the resulting stream to a temperature sufficient to vaporize the solid acid, filtering the stream to remove solid matter therefrom, and contacting the filtered stream with a particulate solid esterification catalyst for 0.1-25 seconds at a temperature high enough to maintain the acid, alcohol and diester in the vapour phase but below the temperature at which substantial decomposition of the acid, alcohol or diester is effected. Suitable temperatures 315-405 DEG C. Catalysts mentioned are alumina, natural and synthetic silica-aluminas, silica gel, kaolin, bauxite, Attapulgus clay, vanadium pentoxide, chromium oxide, copper oxide and phosphorus pentoxide. The preparation of dimethyl terephthalate is described.
GB1040466A 1965-03-11 1966-03-09 Esterification of aromatic dicarboxylic acids Expired GB1110684A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US43892965A 1965-03-11 1965-03-11

Publications (1)

Publication Number Publication Date
GB1110684A true GB1110684A (en) 1968-04-24

Family

ID=23742619

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1040466A Expired GB1110684A (en) 1965-03-11 1966-03-09 Esterification of aromatic dicarboxylic acids

Country Status (6)

Country Link
BE (1) BE677505A (en)
CH (1) CH467234A (en)
DE (1) DE1543454A1 (en)
FR (1) FR1496079A (en)
GB (1) GB1110684A (en)
NL (1) NL6601731A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3940431A (en) * 1972-05-20 1976-02-24 Chemische Werke Huls Aktiengesellschaft Dimethyl terephthalate prepared by the esterification of terephthalic acid
US3972912A (en) * 1972-12-15 1976-08-03 Chemische Werke Huls Aktiengesellschaft Process for the esterification of terephthalic acid in the gas phase
US3980441A (en) * 1972-05-20 1976-09-14 Chemische Werke Huls Aktiengesellschaft Apparatus for the production of dimethyl terephthalate by the esterification of terephthalic acid
US4015943A (en) * 1972-12-15 1977-04-05 Chemische Werke Huls Aktiengesellschaft Apparatus for the esterification of terephthalic acid in the gas phase

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3940431A (en) * 1972-05-20 1976-02-24 Chemische Werke Huls Aktiengesellschaft Dimethyl terephthalate prepared by the esterification of terephthalic acid
US3980441A (en) * 1972-05-20 1976-09-14 Chemische Werke Huls Aktiengesellschaft Apparatus for the production of dimethyl terephthalate by the esterification of terephthalic acid
US3972912A (en) * 1972-12-15 1976-08-03 Chemische Werke Huls Aktiengesellschaft Process for the esterification of terephthalic acid in the gas phase
US4015943A (en) * 1972-12-15 1977-04-05 Chemische Werke Huls Aktiengesellschaft Apparatus for the esterification of terephthalic acid in the gas phase

Also Published As

Publication number Publication date
FR1496079A (en) 1967-09-29
BE677505A (en) 1966-09-08
CH467234A (en) 1969-01-15
NL6601731A (en) 1966-09-12
DE1543454A1 (en) 1969-09-11

Similar Documents

Publication Publication Date Title
BR9205884A (en) Process for the preparation of a purified terephthalic acid containing p-toluic acid
ES499794A0 (en) PROCEDURE FOR THE PREPARATION OF ESTERS OF ALCA-NOIC ACIDS FOR REGULATION OF ALPHA-HALO-ACETALS
YU159679A (en) Process for producing terephthalic acid from dimethylterephthalate as intermediary product
BR7608472A (en) CATALYTIC COMPOSITION SUPPORTED IN ALUMINUM AND PROCESS, IN STEAM PHASE, FOR THE PREPARATION OF Unsaturated ORGANIC ESTERS
US2422884A (en) Isomerizing olefins using boric oxide on alumina as catalyst
GB1110684A (en) Esterification of aromatic dicarboxylic acids
DE3063622D1 (en) Oxidation catalysts and process for the preparation of methacrolein by vapour phase oxidation
CS193574B2 (en) Process for preparing terephthalic acid by the reaction of dipotassium terephthalate and benzoic acid
US2584102A (en) Supported phosphoric acid catalyst and its preparation
GB1425375A (en) Process for the esterification of terephthalic acid
GB1392330A (en) Process for the industrial preparation of desoxyribonucleic acids of high molecular weight
US2493896A (en) Preparation of silica-alumina catalyst
ATE58492T1 (en) REVITALIZATION OF A PHOSPHORVANADIUM CONTAINING CATALYST AND ITS PREPARATION PROCESS, CATALYST FOR THE PRODUCTION OF MALEIC ACID ANHYDRIDE TREATED WITH PHOSPHORUS ACID ALKYLESTERS IN THE PRESENCE OF WATER.
UA8349A1 (en) Process for preparation of terephthalic acid
BE791138R (en) PROCESS FOR PREPARING THE DIMETHYL ESTER OF TEREPHTHALIC ACID
GB1449474A (en) Process for the esterification of terepthalic acid
JPS57102825A (en) Preparation of isobutylene oligomer
US2730530A (en) Fatty acid anhydrides
JPS5726632A (en) Purifying method of glycol
SU872455A1 (en) Method of purifying aluminate solutions from organic substances
JPS54132543A (en) Catalytic purification process of terephthalic acid
ES362923A2 (en) A procedure for the preparation of unitary diarylic steriors of aromatic dicarboxilic acids. (Machine-translation by Google Translate, not legally binding)
JPS5726630A (en) Purifying method of glycol
ES301028A1 (en) PROCEDURE FOR OBTAINING A POLYESTER.
ES300772A1 (en) A procedure for the preparation of unitary diarile esters of aromatic dicarboxylic acids (Machine-translation by Google Translate, not legally binding)