GB1388289A - Production and recovery of terephthalic acid - Google Patents
Production and recovery of terephthalic acidInfo
- Publication number
- GB1388289A GB1388289A GB3981872A GB3981872A GB1388289A GB 1388289 A GB1388289 A GB 1388289A GB 3981872 A GB3981872 A GB 3981872A GB 3981872 A GB3981872 A GB 3981872A GB 1388289 A GB1388289 A GB 1388289A
- Authority
- GB
- United Kingdom
- Prior art keywords
- terephthalic acid
- slurry
- temperature
- zone
- range
- 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
Links
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 title abstract 14
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 238000011084 recovery Methods 0.000 title abstract 2
- 239000002002 slurry Substances 0.000 abstract 8
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 abstract 6
- 238000011144 upstream manufacturing Methods 0.000 abstract 4
- 239000005711 Benzoic acid Substances 0.000 abstract 3
- 239000007864 aqueous solution Substances 0.000 abstract 3
- 235000010233 benzoic acid Nutrition 0.000 abstract 3
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 abstract 3
- 229940103091 potassium benzoate Drugs 0.000 abstract 3
- 235000010235 potassium benzoate Nutrition 0.000 abstract 3
- 239000004300 potassium benzoate Substances 0.000 abstract 3
- LRUDDHYVRFQYCN-UHFFFAOYSA-L dipotassium;terephthalate Chemical compound [K+].[K+].[O-]C(=O)C1=CC=C(C([O-])=O)C=C1 LRUDDHYVRFQYCN-UHFFFAOYSA-L 0.000 abstract 2
- BPWIVQHIJYRBSR-UHFFFAOYSA-M potassium;hydron;terephthalate Chemical compound [K+].OC(=O)C1=CC=C(C([O-])=O)C=C1 BPWIVQHIJYRBSR-UHFFFAOYSA-M 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C63/00—Compounds having carboxyl groups bound to a carbon atoms of six-membered aromatic rings
- C07C63/04—Monocyclic monocarboxylic acids
- C07C63/06—Benzoic acid
- C07C63/08—Salts thereof
-
- 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
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)
Abstract
1388289 Production and recovery of terephthalic acid PHILLIPS PETROLEUM CO 25 Aug 1972 39818/72 Heading C2C A process for the preparation of terephthalic acid from an aqueous solution of dipotassium terephthalate comprises (i) reacting the dipotassium terephthalate in said solution with benzoic acid to produce an aqueous slurry containing dissolved potassium benzoate and undissolved benzoic acid, potassium hydrogen terephthalate, and terephthalic acid; (ii) countercurrently contacting said slurry in an elongated zone with a stream of water, the temperature in said zone adjacent the upstream end (considered in the direction of travel of the slurry) being maintained at a temperature in the range 38- 66‹ C. and adjacent the downstream end at a lower temperature, such lower temperature being in the range 10-38‹ C.; (iii) recovering from said upstream end an aqueous solution of potassium benzoate and from said downstream end an aqueous slurry of benzoic acid, potassium hydrogen terephthalate and terephthalic acid; (iv) countercurrently contacting the slurry recovered in step (iii) in a second elongated contacting zone with a second stream of water, the temperature in said second zone adjacent the upstream end (considered in the direction of travel of the slurry) being maintained at a temperature in the range 66-121‹ C. and adjacent the downstream end at a lower temperature, such lower temperature being in the range 24-66‹ C.; (v) recovering from the upstream end of said second zone a second aqueous solution of potassium benzoate and from the downstream and an aqueous slurry of terephthalic acid; and (vi) separating the terephthalic acid from the slurry recovered in step (v).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3981872A GB1388289A (en) | 1972-08-25 | 1972-08-25 | Production and recovery of terephthalic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3981872A GB1388289A (en) | 1972-08-25 | 1972-08-25 | Production and recovery of terephthalic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1388289A true GB1388289A (en) | 1975-03-26 |
Family
ID=10411676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3981872A Expired GB1388289A (en) | 1972-08-25 | 1972-08-25 | Production and recovery of terephthalic acid |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1388289A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005070862A3 (en) * | 2004-01-15 | 2005-09-22 | Eastman Chem Co | Process for production of a dried carboxylic acid cake suitable for use in polyester production |
| US7074954B2 (en) | 2002-12-09 | 2006-07-11 | Eastman Chemical Company | Process for the oxidative purification of terephthalic acid |
| US7132566B2 (en) | 2003-09-22 | 2006-11-07 | Eastman Chemical Company | Process for the purification of a crude carboxylic acid slurry |
| US7358392B2 (en) | 2002-12-09 | 2008-04-15 | Eastman Chemical Company | Process for the oxidative purification of terephthalic acid |
| US8455680B2 (en) | 2008-01-15 | 2013-06-04 | Eastman Chemical Company | Carboxylic acid production process employing solvent from esterification of lignocellulosic material |
| US8614350B2 (en) | 2008-01-15 | 2013-12-24 | Eastman Chemical Company | Carboxylic acid production process employing solvent from esterification of lignocellulosic material |
-
1972
- 1972-08-25 GB GB3981872A patent/GB1388289A/en not_active Expired
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7074954B2 (en) | 2002-12-09 | 2006-07-11 | Eastman Chemical Company | Process for the oxidative purification of terephthalic acid |
| US7358392B2 (en) | 2002-12-09 | 2008-04-15 | Eastman Chemical Company | Process for the oxidative purification of terephthalic acid |
| US7132566B2 (en) | 2003-09-22 | 2006-11-07 | Eastman Chemical Company | Process for the purification of a crude carboxylic acid slurry |
| WO2005070862A3 (en) * | 2004-01-15 | 2005-09-22 | Eastman Chem Co | Process for production of a dried carboxylic acid cake suitable for use in polyester production |
| JP2007517896A (en) * | 2004-01-15 | 2007-07-05 | イーストマン ケミカル カンパニー | Process for producing a dry carboxylic acid cake suitable for use in polyester production |
| US7546747B2 (en) | 2004-01-15 | 2009-06-16 | Eastman Chemical Company | Process for production of a dried carboxylic acid cake suitable for use in polyester production |
| RU2380352C2 (en) * | 2004-01-15 | 2010-01-27 | Истман Кемикал Компани | Method of preparing dry residue of carboxylic acid suitable for synthesis of polyesters |
| EP2450342A3 (en) * | 2004-01-15 | 2013-10-23 | Grupo Petrotemex, S.A. De C.V. | Process for production of a dried carboxylic acid cake suitable for use in polyester production |
| US8455680B2 (en) | 2008-01-15 | 2013-06-04 | Eastman Chemical Company | Carboxylic acid production process employing solvent from esterification of lignocellulosic material |
| US8614350B2 (en) | 2008-01-15 | 2013-12-24 | Eastman Chemical Company | Carboxylic acid production process employing solvent from esterification of lignocellulosic material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |