ZA200102548B - Improved process for producing highly pure aromatic carboxylic acids. - Google Patents
Improved process for producing highly pure aromatic carboxylic acids. Download PDFInfo
- Publication number
- ZA200102548B ZA200102548B ZA200102548A ZA200102548A ZA200102548B ZA 200102548 B ZA200102548 B ZA 200102548B ZA 200102548 A ZA200102548 A ZA 200102548A ZA 200102548 A ZA200102548 A ZA 200102548A ZA 200102548 B ZA200102548 B ZA 200102548B
- Authority
- ZA
- South Africa
- Prior art keywords
- impure
- slurry
- holding tank
- product
- solution
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 19
- -1 aromatic carboxylic acids Chemical class 0.000 title description 4
- 239000002002 slurry Substances 0.000 claims description 17
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 11
- 239000002253 acid Substances 0.000 claims description 10
- 239000000047 product Substances 0.000 claims description 10
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 9
- 239000013078 crystal Substances 0.000 claims description 9
- 239000012265 solid product Substances 0.000 claims description 9
- 239000011973 solid acid Substances 0.000 claims description 6
- 239000003054 catalyst Substances 0.000 claims description 5
- 238000005984 hydrogenation reaction Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims description 2
- 230000000717 retained effect Effects 0.000 claims description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 description 4
- 238000000746 purification Methods 0.000 description 4
- GOUHYARYYWKXHS-UHFFFAOYSA-N 4-formylbenzoic acid Chemical compound OC(=O)C1=CC=C(C=O)C=C1 GOUHYARYYWKXHS-UHFFFAOYSA-N 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- LPNBBFKOUUSUDB-UHFFFAOYSA-N p-toluic acid Chemical compound CC1=CC=C(C(O)=O)C=C1 LPNBBFKOUUSUDB-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000005711 Benzoic acid Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000010960 commercial process Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
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)
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 |
|---|---|
| ZA200102548B true ZA200102548B (en) | 2002-03-28 |
Family
ID=22746628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA200102548A ZA200102548B (en) | 1998-11-30 | 2001-03-28 | Improved process for producing highly pure aromatic carboxylic acids. |
Country Status (17)
| Country | Link |
|---|---|
| US (1) | US6245939B1 (ko) |
| EP (1) | EP1135355B1 (ko) |
| KR (1) | KR100596600B1 (ko) |
| CN (1) | CN1138745C (ko) |
| AR (1) | AR021417A1 (ko) |
| AT (1) | ATE253544T1 (ko) |
| BR (1) | BR9916866B1 (ko) |
| CA (1) | CA2345448C (ko) |
| DE (1) | DE69912636T2 (ko) |
| DZ (1) | DZ2950A1 (ko) |
| EG (1) | EG22328A (ko) |
| ES (1) | ES2211204T3 (ko) |
| ID (1) | ID28784A (ko) |
| TR (1) | TR200101534T2 (ko) |
| TW (1) | TW561145B (ko) |
| WO (1) | WO2000032548A1 (ko) |
| ZA (1) | ZA200102548B (ko) |
Families Citing this family (8)
| 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 |
| KR102140862B1 (ko) | 2015-05-14 | 2020-08-03 | 더블유.엘. 고어 앤드 어소시에이트스, 인코포레이티드 | 심방이의 폐색을 위한 디바이스 및 방법 |
| US11173023B2 (en) | 2017-10-16 | 2021-11-16 | W. L. Gore & Associates, Inc. | Medical devices and anchors therefor |
Family Cites Families (5)
| 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 |
-
1998
- 1998-11-30 US US09/201,634 patent/US6245939B1/en not_active Expired - Fee Related
-
1999
- 1999-11-22 ID IDW00200101145A patent/ID28784A/id unknown
- 1999-11-22 CN CNB998137847A patent/CN1138745C/zh not_active Expired - Lifetime
- 1999-11-22 KR KR1020017006676A patent/KR100596600B1/ko not_active IP Right Cessation
- 1999-11-22 ES ES99960531T patent/ES2211204T3/es not_active Expired - Lifetime
- 1999-11-22 WO PCT/US1999/027559 patent/WO2000032548A1/en active IP Right Grant
- 1999-11-22 TR TR2001/01534T patent/TR200101534T2/xx unknown
- 1999-11-22 BR BRPI9916866-9A patent/BR9916866B1/pt not_active IP Right Cessation
- 1999-11-22 CA CA002345448A patent/CA2345448C/en not_active Expired - Fee Related
- 1999-11-22 DE DE69912636T patent/DE69912636T2/de not_active Expired - Lifetime
- 1999-11-22 EP EP99960531A patent/EP1135355B1/en not_active Expired - Lifetime
- 1999-11-22 AT AT99960531T patent/ATE253544T1/de not_active IP Right Cessation
- 1999-11-23 TW TW088120442A patent/TW561145B/zh not_active IP Right Cessation
- 1999-11-26 AR ARP990106041A patent/AR021417A1/es active IP Right Grant
- 1999-11-28 DZ DZ990250A patent/DZ2950A1/xx active
- 1999-11-29 EG EG151499A patent/EG22328A/xx active
-
2001
- 2001-03-28 ZA ZA200102548A patent/ZA200102548B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ATE253544T1 (de) | 2003-11-15 |
| CA2345448A1 (en) | 2000-06-08 |
| EP1135355A1 (en) | 2001-09-26 |
| KR20010080618A (ko) | 2001-08-22 |
| TR200101534T2 (tr) | 2002-04-22 |
| US6245939B1 (en) | 2001-06-12 |
| EG22328A (en) | 2002-12-31 |
| CN1138745C (zh) | 2004-02-18 |
| WO2000032548A1 (en) | 2000-06-08 |
| DE69912636T2 (de) | 2004-09-16 |
| AR021417A1 (es) | 2002-07-17 |
| CN1328536A (zh) | 2001-12-26 |
| EP1135355B1 (en) | 2003-11-05 |
| DE69912636D1 (de) | 2003-12-11 |
| BR9916866B1 (pt) | 2011-05-31 |
| CA2345448C (en) | 2009-02-10 |
| ES2211204T3 (es) | 2004-07-01 |
| KR100596600B1 (ko) | 2006-07-06 |
| TW561145B (en) | 2003-11-11 |
| DZ2950A1 (fr) | 2004-03-15 |
| BR9916866A (pt) | 2001-11-13 |
| ID28784A (id) | 2001-07-05 |
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