CA1042014A - Acide phthalique non noirci, prepare a partir du tolualdehyde correspondant - Google Patents

Acide phthalique non noirci, prepare a partir du tolualdehyde correspondant

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)
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/fr
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 Acide phthalique non noirci, prepare a partir du tolualdehyde correspondant Expired CA1042014A (fr)

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 (fr) 1978-11-07

Family

ID=11995885

Family Applications (1)

Application Number Title Priority Date Filing Date
CA244,541A Expired CA1042014A (fr) 1975-02-14 1976-01-29 Acide phthalique non noirci, prepare a partir du tolualdehyde correspondant

Country Status (7)

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

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 (fr) * 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
FR2113424A5 (fr) * 1970-11-01 1972-06-23 Maruzen Oil Co Ltd
JPS5186437A (ja) * 1975-01-28 1976-07-29 Mitsubishi Gas Chemical Co Futarusannokokushokukaboshiho

Also Published As

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

Similar Documents

Publication Publication Date Title
US4286101A (en) Process for preparing terephthalic acid
US4594449A (en) Process for producing terephthalic acid suitable for use in direct polymerization
CA2284721C (fr) Procede de preparation d'acide 2,6-naphtalenedicarboxylique
EP1140765B1 (fr) Methode de production d'acides carboxyliques aromatiques
US4241220A (en) Process for producing terephthalic acid
US6175038B1 (en) Method of producing aromatic carboxylic acids by oxidizing alkyl aromatic compounds or partially oxidized intermediates thereof with oxygen-enriched gas
US4933491A (en) Method for purifying a crude naphthalene dicarboxylic acid
EP1173401B1 (fr) Procede de production d'acides carboxyliques aromatiques
US3846487A (en) Process for the production of fiber grade terephthalic acid
US3171856A (en) Acid purification process
CA1042014A (fr) Acide phthalique non noirci, prepare a partir du tolualdehyde correspondant
CA1042459A (fr) Acide phthalique non noirci, prepare a partir du tolualdehyde correspondant
US4245078A (en) Process for producing terephthalic acid
US4824992A (en) Process for producing pyromellitic acid
US4214100A (en) Process for preventing blackening of phthalic acid
US4886906A (en) Process for producing 2,6-naphthalene dicarboxylic acid
JPH01121240A (ja) ２，６−ナフタレンジカルボン酸の製造法
JPS6050775B2 (ja) テレフタル酸の連続製法
US4317924A (en) Process for producing purified terephthalic acid
US20060205974A1 (en) Processes for producing aromatic dicarboxylic acids
KR820000653B1 (ko) 테레프탈산의 제조 방법
EP1052239B1 (fr) Procédé de production d'acide pyroméllitique
JPS5915895B2 (ja) 芳香族カルボン酸の製造方法
KR100398160B1 (ko) 방향족 카복실산의 제조 방법
KR100508684B1 (ko) 방향족 카르복시산의 제조방법