CA1042014A - Process for producing a non-blackened phthalic acid from the corresponding tolualdehyde - Google Patents

Process for producing a non-blackened phthalic acid from the corresponding tolualdehyde

Info

Publication number
CA1042014A
CA1042014A CA244,541A CA244541A CA1042014A CA 1042014 A CA1042014 A CA 1042014A CA 244541 A CA244541 A CA 244541A CA 1042014 A CA1042014 A CA 1042014A
Authority
CA
Canada
Prior art keywords
tolualdehyde
ppm
reaction system
manganese
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.)
Expired
Application number
CA244,541A
Other languages
English (en)
French (fr)
Inventor
Makoto Komatsu
Tazuo Ohta
Toru Tanaka
Kimiko Akagi
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.)
Mitsubishi Gas Chemical Co Inc
Original Assignee
Mitsubishi Gas Chemical Co Inc
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 Mitsubishi Gas Chemical Co Inc filed Critical Mitsubishi Gas Chemical Co Inc
Application granted granted Critical
Publication of CA1042014A publication Critical patent/CA1042014A/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)
CA244,541A 1975-02-14 1976-01-29 Process for producing a non-blackened phthalic acid from the corresponding tolualdehyde Expired CA1042014A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50019312A JPS5195034A (en) 1975-02-14 1975-02-14 Futarusanno kokushokukaboshihoho

Publications (1)

Publication Number Publication Date
CA1042014A true CA1042014A (en) 1978-11-07

Family

ID=11995885

Family Applications (1)

Application Number Title Priority Date Filing Date
CA244,541A Expired CA1042014A (en) 1975-02-14 1976-01-29 Process for producing a non-blackened phthalic acid from the corresponding tolualdehyde

Country Status (7)

Country Link
JP (1) JPS5195034A (de)
BE (1) BE838583A (de)
CA (1) CA1042014A (de)
DE (1) DE2605882C2 (de)
FR (1) FR2300753A1 (de)
GB (1) GB1518901A (de)
NL (1) NL180099C (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5446740A (en) * 1977-09-20 1979-04-12 Matsuyama Sekyu Kagaku Kk Manufacture of highly pure terephthalic acid for direct polymerization
JPS55145637A (en) * 1979-05-02 1980-11-13 Teijin Hercules Kk Preparation of aromatic carboxylic acid or its methyl ester
JPH0337579U (de) * 1989-08-22 1991-04-11

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2154147C3 (de) * 1970-11-01 1978-03-16 Maruzen Oil Co., Ltd., Osaka (Japan) Verfahren zur Herstellung von Terephthalsäure
JPS5186437A (ja) * 1975-01-28 1976-07-29 Mitsubishi Gas Chemical Co Futarusannokokushokukaboshiho

Also Published As

Publication number Publication date
BE838583A (fr) 1976-05-28
DE2605882C2 (de) 1983-07-28
JPS575777B2 (de) 1982-02-01
FR2300753A1 (fr) 1976-09-10
NL7601392A (nl) 1976-08-17
NL180099C (nl) 1987-01-02
FR2300753B1 (de) 1978-11-10
NL180099B (nl) 1986-08-01
DE2605882A1 (de) 1976-08-26
GB1518901A (en) 1978-07-26
JPS5195034A (en) 1976-08-20

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