GB1313083A - Process for producing para-toliuc acid and monomethyl terephthalate - Google Patents

Process for producing para-toliuc acid and monomethyl terephthalate

Info

Publication number
GB1313083A
GB1313083A GB4147671A GB4147671A GB1313083A GB 1313083 A GB1313083 A GB 1313083A GB 4147671 A GB4147671 A GB 4147671A GB 4147671 A GB4147671 A GB 4147671A GB 1313083 A GB1313083 A GB 1313083A
Authority
GB
United Kingdom
Prior art keywords
para
salts
manganese
cobalt
component
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
GB4147671A
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.)
Teijin Hercules Chemical Co Ltd
Original Assignee
Teijin Hercules Chemical Co Ltd
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 Teijin Hercules Chemical Co Ltd filed Critical Teijin Hercules Chemical Co Ltd
Publication of GB1313083A publication Critical patent/GB1313083A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/16Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/21Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
    • C07C51/255Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting
    • C07C51/265Preparation 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
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00Preparation of carboxylic acid esters
    • C07C67/39Preparation of carboxylic acid esters by oxidation of groups which are precursors for the acid moiety of the ester

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)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

1313083 Producing para-toluic acid and monomethylterephthalate TEIJIN HERCULES CHEMICAL CO Ltd 6 Sept 1971 [8 Sept 1970] 41476/71 Heading C2C The invention comprises a process for producing para-toluic acid and monomethylterephthalate by liquid phase oxidation of a mixture containing para-xylene and methylparatoluate in a weight ratio of 2 : 1-1 : 4 with molecular oxygen or a gas containing molecular oxygen, the reaction being carried out at 140-240‹ C. in the presence of an oxidation catalyst comprising a manganese component (A), which is manganese or one of its compounds which is soluble in the reaction system, and a cobalt component B, which is cobalt or one of its salts which is soluble in the reaction system, the g. atomic ratio of manganese to cobalt being from 0À1: 99À9 to 99 : 1 and the total catalyst concentration (in terms of total content of Mn and Co present in components A and B) being from 50- 1500 p.p.m. by wt. based on the total amount of reaction mixture. Specified compounds of Co and Mn which can form a component of the catalyst are (i) salts of C 1 -C 20 aliphatic carboxylic acids, (ii) salts of aromatic carboxylic acids, e.g. benzoic or toluic, (iii) alicyclic carboxylic acid, e.g. naphthenic, (iv) complexes with, e.g. acetylacetone, methylacetoacetate, ethylacetoacetate, (v) inorganic compounds, e.g. carbonates, oxides, or hydroxides. After the oxidation process of the invention the monomethyl terephthalate and para-toluic acid produced can be esterified to dimethyl terephthalate, which can be used in formation of film and fibre-forming polyesters, and methyl para-toluate which can be recycled to the oxidation process together with fresh para-xylene.
GB4147671A 1970-09-08 1971-09-06 Process for producing para-toliuc acid and monomethyl terephthalate Expired GB1313083A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7874270A JPS4927574B1 (en) 1970-09-08 1970-09-08

Publications (1)

Publication Number Publication Date
GB1313083A true GB1313083A (en) 1973-04-11

Family

ID=13670323

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4147671A Expired GB1313083A (en) 1970-09-08 1971-09-06 Process for producing para-toliuc acid and monomethyl terephthalate

Country Status (9)

Country Link
JP (1) JPS4927574B1 (en)
BE (1) BE772355A (en)
CA (1) CA963913A (en)
DE (2) DE2166885C2 (en)
FR (1) FR2107340A5 (en)
GB (1) GB1313083A (en)
IT (1) IT938783B (en)
NL (1) NL153179C (en)
RO (1) RO62280A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006103693A1 (en) * 2005-03-31 2006-10-05 Council Of Scientific & Industrial Research A process for the preparation of p-toluic acid by liquid phase oxidation of p-xylene in water
US8193402B2 (en) 2007-12-03 2012-06-05 Gevo, Inc. Renewable compositions
US8373012B2 (en) 2010-05-07 2013-02-12 Gevo, Inc. Renewable jet fuel blendstock from isobutanol
US8378160B2 (en) 2007-12-03 2013-02-19 Gevo, Inc. Renewable compositions
US8450543B2 (en) 2010-01-08 2013-05-28 Gevo, Inc. Integrated methods of preparing renewable chemicals
US8742187B2 (en) 2011-04-19 2014-06-03 Gevo, Inc. Variations on prins-like chemistry to produce 2,5-dimethylhexadiene from isobutanol

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4927574B1 (en) * 1970-09-08 1974-07-18
BE791138R (en) 1971-12-18 1973-05-09 Dynamit Nobel Ag PROCESS FOR PREPARING THE DIMETHYL ESTER OF TEREPHTHALIC ACID
JPS522895B2 (en) * 1972-08-14 1977-01-25
JPS54119427A (en) * 1978-03-07 1979-09-17 Teijin Ltd Preparation of benzenecarboxylic acid
NL8001550A (en) * 1980-03-15 1981-10-16 Stamicarbon PROCESS FOR PREPARING BENZENE MONOCARBONIC ACIDS.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE949564C (en) * 1951-04-13 1956-09-20 Imhausen & Co G M B H Process for the preparation of terephthalic acid monomethyl ester
NL246757A (en) * 1958-12-23
GB907926A (en) * 1960-04-18 1962-10-10 Distillers Co Yeast Ltd Improvements in or relating to the production of trimellitic acid and trimellitic anhydride
GB1007570A (en) * 1961-07-24 1965-10-13 Socaty Process for the catalytic oxidation of xylenes or industrial mixtures of xylenes
DE2010137C3 (en) * 1970-03-04 1979-07-05 Dynamit Nobel Ag, 5210 Troisdorf Process for the preparation of dimethyl terephthalate
JPS4927574B1 (en) * 1970-09-08 1974-07-18
JPS522896B2 (en) * 1973-01-18 1977-01-25

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006103693A1 (en) * 2005-03-31 2006-10-05 Council Of Scientific & Industrial Research A process for the preparation of p-toluic acid by liquid phase oxidation of p-xylene in water
KR100965633B1 (en) 2005-03-31 2010-06-23 카운슬 오브 사이언티픽 앤드 인더스트리얼 리서치 A process for the preparation of p-toluic acid by liquid phase oxidation of p-xylene in water
CN101146755B (en) * 2005-03-31 2012-07-11 科学与工业研究委员会 Process for the preparation of p-toluic acid by liquid phase oxidation of p-xylene in water
US8193402B2 (en) 2007-12-03 2012-06-05 Gevo, Inc. Renewable compositions
US8378160B2 (en) 2007-12-03 2013-02-19 Gevo, Inc. Renewable compositions
US8487149B2 (en) 2007-12-03 2013-07-16 Gevo, Inc. Renewable compositions
US8546627B2 (en) 2007-12-03 2013-10-01 Gevo, Inc. Renewable compositions
US8450543B2 (en) 2010-01-08 2013-05-28 Gevo, Inc. Integrated methods of preparing renewable chemicals
US8373012B2 (en) 2010-05-07 2013-02-12 Gevo, Inc. Renewable jet fuel blendstock from isobutanol
US8975461B2 (en) 2010-05-07 2015-03-10 Gevo, Inc. Renewable jet fuel blendstock from isobutanol
US8742187B2 (en) 2011-04-19 2014-06-03 Gevo, Inc. Variations on prins-like chemistry to produce 2,5-dimethylhexadiene from isobutanol

Also Published As

Publication number Publication date
NL153179B (en) 1977-05-16
CA963913A (en) 1975-03-04
BE772355A (en) 1972-01-17
DE2144920A1 (en) 1972-04-13
NL7112366A (en) 1972-03-10
NL153179C (en) 1979-11-15
DE2166885C2 (en) 1984-10-11
RO62280A (en) 1978-04-15
JPS4927574B1 (en) 1974-07-18
DE2166885A1 (en) 1976-11-18
IT938783B (en) 1973-02-10
FR2107340A5 (en) 1972-05-05
DE2144920C3 (en) 1982-12-02
DE2144920B2 (en) 1977-06-02

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Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414A Case decided by the comptroller ** specification amended (sect. 14/1949)
SPA Amended specification published
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee