WO2008120091A3 - Improved manufacturing process for aromatic carboxylic acids - Google Patents

Improved manufacturing process for aromatic carboxylic acids Download PDF

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Publication number
WO2008120091A3
WO2008120091A3 PCT/IB2008/000777 IB2008000777W WO2008120091A3 WO 2008120091 A3 WO2008120091 A3 WO 2008120091A3 IB 2008000777 W IB2008000777 W IB 2008000777W WO 2008120091 A3 WO2008120091 A3 WO 2008120091A3
Authority
WO
WIPO (PCT)
Prior art keywords
aromatic carboxylic
manufacturing process
carboxylic acids
improved manufacturing
offgas
Prior art date
Application number
PCT/IB2008/000777
Other languages
French (fr)
Other versions
WO2008120091A2 (en
Inventor
Jianjun Zhu
Yaping Lu
Suling Zhai
Original Assignee
Linde Inc
Jianjun Zhu
Yaping Lu
Suling Zhai
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 Linde Inc, Jianjun Zhu, Yaping Lu, Suling Zhai filed Critical Linde Inc
Publication of WO2008120091A2 publication Critical patent/WO2008120091A2/en
Publication of WO2008120091A3 publication Critical patent/WO2008120091A3/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides

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)
  • Detergent Compositions (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)

Abstract

A method for the production of aromatic carboxylic acid via oxidation of alkyl aromatic compounds is disclosed. The alkyl aromatic compound is oxidized in an oxidation reactor by a mixture of an oxygen-rich gas and recycled offgas in the presence of a catalyst system and a liquid solvent. The waste gas treatment is significantly simplified because only a small amount of the offgas is released to the atmosphere. The disclosed method is of great benefits in both economic and environment.
PCT/IB2008/000777 2007-04-03 2008-04-02 Improved manufacturing process for aromatic carboxylic acids WO2008120091A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CNA2007100968046A CN101279904A (en) 2007-04-03 2007-04-03 Improved method for preparing aromatic carboxyl acid
CN200710096804.6 2007-04-03

Publications (2)

Publication Number Publication Date
WO2008120091A2 WO2008120091A2 (en) 2008-10-09
WO2008120091A3 true WO2008120091A3 (en) 2008-12-31

Family

ID=39691089

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2008/000777 WO2008120091A2 (en) 2007-04-03 2008-04-02 Improved manufacturing process for aromatic carboxylic acids

Country Status (2)

Country Link
CN (1) CN101279904A (en)
WO (1) WO2008120091A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107629066B (en) * 2017-10-27 2020-11-03 潍坊弘润新材料有限公司 Production system and production method of pyromellitic dianhydride by recycling process tail gas
CN107963964A (en) * 2017-11-02 2018-04-27 华东理工大学 The preparation method of M-phthalic acid
CN108997284B (en) * 2018-07-16 2022-05-03 山东冠森高分子材料科技股份有限公司 Method for synthesizing chlorophthalic anhydride in continuous flow micro-channel reactor
CN110128261A (en) * 2019-02-26 2019-08-16 沅江华龙催化科技有限公司 A kind of method of energy-saving and environment-friendly paraxylene air oxidation synthesis terephthalic acid (TPA)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4334086A (en) * 1981-03-16 1982-06-08 Labofina S.A. Production of terephthalic acid
EP0135341A1 (en) * 1983-08-09 1985-03-27 Mitsubishi Kasei Corporation Process for preparing terephthalic acid from para-xylene
US4827025A (en) * 1986-09-26 1989-05-02 Mitsui Petrochemical Industries, Ltd. Process for the production of aromatic carboxylic acids
EP0673910A1 (en) * 1994-03-22 1995-09-27 Mitsui Petrochemical Industries, Ltd. Process and apparatus for producing aromatic carboxylic acid
US5763648A (en) * 1996-02-13 1998-06-09 Mitsubishi Chemical Corporation Process for producing an aromatic carboxylic acid
WO2000058257A1 (en) * 1999-03-25 2000-10-05 Franco Codignola Process for the production of aromatic acids

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4334086A (en) * 1981-03-16 1982-06-08 Labofina S.A. Production of terephthalic acid
EP0135341A1 (en) * 1983-08-09 1985-03-27 Mitsubishi Kasei Corporation Process for preparing terephthalic acid from para-xylene
US4827025A (en) * 1986-09-26 1989-05-02 Mitsui Petrochemical Industries, Ltd. Process for the production of aromatic carboxylic acids
EP0673910A1 (en) * 1994-03-22 1995-09-27 Mitsui Petrochemical Industries, Ltd. Process and apparatus for producing aromatic carboxylic acid
US5763648A (en) * 1996-02-13 1998-06-09 Mitsubishi Chemical Corporation Process for producing an aromatic carboxylic acid
WO2000058257A1 (en) * 1999-03-25 2000-10-05 Franco Codignola Process for the production of aromatic acids

Also Published As

Publication number Publication date
WO2008120091A2 (en) 2008-10-09
CN101279904A (en) 2008-10-08

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