EG22328A - Improved process for producing highly pure aromatic carboxylic acids - Google Patents

Improved process for producing highly pure aromatic carboxylic acids

Info

Publication number
EG22328A
EG22328A EG151499A EG151499A EG22328A EG 22328 A EG22328 A EG 22328A EG 151499 A EG151499 A EG 151499A EG 151499 A EG151499 A EG 151499A EG 22328 A EG22328 A EG 22328A
Authority
EG
Egypt
Prior art keywords
carboxylic acids
aromatic carboxylic
improved process
highly pure
producing highly
Prior art date
Application number
EG151499A
Other languages
English (en)
Inventor
Yu-Wei Hsu
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 EG22328A publication Critical patent/EG22328A/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)
EG151499A 1998-11-30 1999-11-29 Improved process for producing highly pure aromatic carboxylic acids EG22328A (en)

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
EG22328A true EG22328A (en) 2002-12-31

Family

ID=22746628

Family Applications (1)

Application Number Title Priority Date Filing Date
EG151499A EG22328A (en) 1998-11-30 1999-11-29 Improved process for producing highly pure aromatic carboxylic acids

Country Status (17)

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

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US8173836B2 (en) * 2006-03-01 2012-05-08 Grupo Petrotemex, S.A. De C.V. Method and apparatus for drying carboxylic acid
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
ES2908460T3 (es) 2015-05-14 2022-04-29 Gore & Ass Dispositivos para la oclusión de un apéndice auricular
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
TW561145B (en) 2003-11-11
ID28784A (id) 2001-07-05
WO2000032548A1 (en) 2000-06-08
CN1138745C (zh) 2004-02-18
DZ2950A1 (fr) 2004-03-15
DE69912636T2 (de) 2004-09-16
AR021417A1 (es) 2002-07-17
EP1135355B1 (en) 2003-11-05
KR20010080618A (ko) 2001-08-22
TR200101534T2 (tr) 2002-04-22
BR9916866B1 (pt) 2011-05-31
ZA200102548B (en) 2002-03-28
CN1328536A (zh) 2001-12-26
DE69912636D1 (de) 2003-12-11
ES2211204T3 (es) 2004-07-01
BR9916866A (pt) 2001-11-13
KR100596600B1 (ko) 2006-07-06
US6245939B1 (en) 2001-06-12
EP1135355A1 (en) 2001-09-26
CA2345448C (en) 2009-02-10
ATE253544T1 (de) 2003-11-15
CA2345448A1 (en) 2000-06-08

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