DZ2950A1 - Procédé amélioré de production d'acides carboxyliques aromatiques de haute pureté. - Google Patents

Procédé amélioré de production d'acides carboxyliques aromatiques de haute pureté.

Info

Publication number
DZ2950A1
DZ2950A1 DZ990250A DZ990250A DZ2950A1 DZ 2950 A1 DZ2950 A1 DZ 2950A1 DZ 990250 A DZ990250 A DZ 990250A DZ 990250 A DZ990250 A DZ 990250A DZ 2950 A1 DZ2950 A1 DZ 2950A1
Authority
DZ
Algeria
Prior art keywords
production
carboxylic acids
high purity
aromatic carboxylic
improved process
Prior art date
Application number
DZ990250A
Other languages
English (en)
French (fr)
Inventor
Yu-Wei Hsu
Cheng-Long Lin
Original Assignee
Du Pont
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 Du Pont filed Critical Du Pont
Application granted granted Critical
Publication of DZ2950A1 publication Critical patent/DZ2950A1/xx

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
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DZ990250A 1998-11-30 1999-11-28 Procédé amélioré de production d'acides carboxyliques aromatiques de haute pureté. DZ2950A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/201,634 US6245939B1 (en) 1998-11-30 1998-11-30 Process for producing highly pure aromatic carboxylic acids

Publications (1)

Publication Number Publication Date
DZ2950A1 true DZ2950A1 (fr) 2004-03-15

Family

ID=22746628

Family Applications (1)

Application Number Title Priority Date Filing Date
DZ990250A DZ2950A1 (fr) 1998-11-30 1999-11-28 Procédé amélioré de production d'acides carboxyliques aromatiques de haute pureté.

Country Status (17)

Country Link
US (1) US6245939B1 (es)
EP (1) EP1135355B1 (es)
KR (1) KR100596600B1 (es)
CN (1) CN1138745C (es)
AR (1) AR021417A1 (es)
AT (1) ATE253544T1 (es)
BR (1) BR9916866B1 (es)
CA (1) CA2345448C (es)
DE (1) DE69912636T2 (es)
DZ (1) DZ2950A1 (es)
EG (1) EG22328A (es)
ES (1) ES2211204T3 (es)
ID (1) ID28784A (es)
TR (1) TR200101534T2 (es)
TW (1) TW561145B (es)
WO (1) WO2000032548A1 (es)
ZA (1) ZA200102548B (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8173835B2 (en) * 2006-03-01 2012-05-08 Grupo Petrotemex, S.A. De C.V. Method and apparatus for drying carboxylic acid
US8697906B2 (en) * 2006-03-01 2014-04-15 Grupo Petrotemex, S.A. De C.V. Methods and apparatus for producing a low-moisture carboxylic acid wet cake
US9744033B2 (en) 2011-04-01 2017-08-29 W.L. Gore & Associates, Inc. Elastomeric leaflet for prosthetic heart valves
US9554806B2 (en) 2011-09-16 2017-01-31 W. L. Gore & Associates, Inc. Occlusive devices
US9510935B2 (en) 2012-01-16 2016-12-06 W. L. Gore & Associates, Inc. Articles including expanded polytetrafluoroethylene membranes with serpentine fibrils and having a discontinuous fluoropolymer layer thereon
US11911258B2 (en) 2013-06-26 2024-02-27 W. L. Gore & Associates, Inc. Space filling devices
CN114652385A (zh) 2015-05-14 2022-06-24 W.L.戈尔及同仁股份有限公司 用于闭塞心耳的装置
US11173023B2 (en) 2017-10-16 2021-11-16 W. L. Gore & Associates, Inc. Medical devices and anchors therefor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA846501B (en) * 1983-08-30 1985-03-27 Minpro Pty Ltd Mineral processing installation
US4626598A (en) * 1985-06-17 1986-12-02 Amoco Corporation Purification of terephthalic acid
US4629715A (en) * 1985-10-07 1986-12-16 Amoco Corporation Purification of terephthalic acid to relatively low levels of 4-carboxybenzaldehyde and catalyst therefor
US5062709A (en) * 1990-04-25 1991-11-05 Amoco Corporation Process for monitoring particle size and moisture content of finely divided material
JPH0769975A (ja) * 1993-08-27 1995-03-14 Mitsubishi Chem Corp 高純度テレフタル酸の製造方法

Also Published As

Publication number Publication date
TR200101534T2 (tr) 2002-04-22
EG22328A (en) 2002-12-31
CA2345448C (en) 2009-02-10
ES2211204T3 (es) 2004-07-01
CN1138745C (zh) 2004-02-18
BR9916866B1 (pt) 2011-05-31
WO2000032548A1 (en) 2000-06-08
EP1135355A1 (en) 2001-09-26
AR021417A1 (es) 2002-07-17
KR20010080618A (ko) 2001-08-22
ATE253544T1 (de) 2003-11-15
CA2345448A1 (en) 2000-06-08
ZA200102548B (en) 2002-03-28
DE69912636T2 (de) 2004-09-16
EP1135355B1 (en) 2003-11-05
BR9916866A (pt) 2001-11-13
KR100596600B1 (ko) 2006-07-06
TW561145B (en) 2003-11-11
US6245939B1 (en) 2001-06-12
ID28784A (id) 2001-07-05
DE69912636D1 (de) 2003-12-11
CN1328536A (zh) 2001-12-26

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