GB818211A - Manufacture of pure terephthalic acid - Google Patents
Manufacture of pure terephthalic acidInfo
- Publication number
- GB818211A GB818211A GB3196055A GB3196055A GB818211A GB 818211 A GB818211 A GB 818211A GB 3196055 A GB3196055 A GB 3196055A GB 3196055 A GB3196055 A GB 3196055A GB 818211 A GB818211 A GB 818211A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- terephthalic acid
- liquors
- mother
- purified
- 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 8
- 238000004519 manufacturing process Methods 0.000 title 1
- LPNBBFKOUUSUDB-UHFFFAOYSA-N p-toluic acid Chemical compound CC1=CC=C(C(O)=O)C=C1 LPNBBFKOUUSUDB-UHFFFAOYSA-N 0.000 abstract 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 abstract 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 abstract 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 abstract 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract 2
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 abstract 2
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 abstract 2
- SCYULBFZEHDVBN-UHFFFAOYSA-N 1,1-Dichloroethane Chemical compound CC(Cl)Cl SCYULBFZEHDVBN-UHFFFAOYSA-N 0.000 abstract 1
- RJUFJBKOKNCXHH-UHFFFAOYSA-N Methyl propionate Chemical compound CCC(=O)OC RJUFJBKOKNCXHH-UHFFFAOYSA-N 0.000 abstract 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 abstract 1
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 abstract 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- HRYZWHHZPQKTII-UHFFFAOYSA-N chloroethane Chemical compound CCCl HRYZWHHZPQKTII-UHFFFAOYSA-N 0.000 abstract 1
- 238000010790 dilution Methods 0.000 abstract 1
- 239000012895 dilution Substances 0.000 abstract 1
- 238000004821 distillation Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 229940017219 methyl propionate Drugs 0.000 abstract 1
- YKYONYBAUNKHLG-UHFFFAOYSA-N n-Propyl acetate Natural products CCCOC(C)=O YKYONYBAUNKHLG-UHFFFAOYSA-N 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 229940090181 propyl acetate Drugs 0.000 abstract 1
- 238000001953 recrystallisation Methods 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- CXWXQJXEFPUFDZ-UHFFFAOYSA-N tetralin Chemical compound C1=CC=C2CCCCC2=C1 CXWXQJXEFPUFDZ-UHFFFAOYSA-N 0.000 abstract 1
- NQPDZGIKBAWPEJ-UHFFFAOYSA-N valeric acid Chemical compound CCCCC(O)=O NQPDZGIKBAWPEJ-UHFFFAOYSA-N 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 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
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Crude terephthalic acid is purified by recrystallization from boiling N : N-dimethyl formamide. The mother-liquors may be used to recrystallize further portions of crude acid. Further pure acid may be obtained from the mother-liquors by adding an organic liquid which dissolves the impurities but not terephthalic acid and is miscible with N : N-dimethyl formamide, such as methanol, ethanol, isopropanol, dichlorethane, chlorethane, methylene chloride, carbon tetrachloride, methyl acetate, ethyl acetate, propyl acetate, methyl propionate, acetone, methyl ethyl ketone, toluene, benzene, and tetrahydro-naphthalene, and which may be diluted with aliphatic hydrocarbons such as petroleum ether. When terephthalic acid containing p-toluic acid is purified, the p-toluic acid may be recovered from the residual mother-liquors by distillation of the solvent or by dilution with water. Examples are given.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3196055A GB818211A (en) | 1955-11-08 | 1955-11-08 | Manufacture of pure terephthalic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3196055A GB818211A (en) | 1955-11-08 | 1955-11-08 | Manufacture of pure terephthalic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB818211A true GB818211A (en) | 1959-08-12 |
Family
ID=10330943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3196055A Expired GB818211A (en) | 1955-11-08 | 1955-11-08 | Manufacture of pure terephthalic acid |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB818211A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3123632A (en) * | 1964-03-03 | Process for the production of the | ||
| WO1998024749A1 (en) * | 1996-12-06 | 1998-06-11 | Hfm International, Inc. | Method and apparatus for preparing purified terephthalic acid |
| US5929274A (en) | 1995-06-07 | 1999-07-27 | Hfm International, Inc. | Method to reduce carboxybenzaldehyde isomers in terephthalic acid or isophthalic acid |
| US5961935A (en) | 1995-06-07 | 1999-10-05 | Hfm International, Inc. | Method and apparatus for preparing purified terephthalic acid |
| WO1999062857A1 (en) * | 1998-05-29 | 1999-12-09 | Hfm International, Inc. | Method for preparing purified terephthalic acid and isophthalic acid from mixed xylenes |
| US6054610A (en) | 1995-06-07 | 2000-04-25 | Hfm International, Inc. | Method and apparatus for preparing purified terephthalic acid and isophthalic acid from mixed xylenes |
| EP1030829A4 (en) * | 1997-10-31 | 2003-01-02 | Hfm Int Inc | Method and apparatus for preparing purified terephthalic acid |
| RU2214391C2 (en) * | 1998-05-29 | 2003-10-20 | Хфм Интернэшнл, Инк. | Method for preparing purified terephthalic and isophthalic acid from xylenes mixture |
| WO2006088470A3 (en) * | 2004-04-09 | 2007-03-29 | Gtc Technology Inc | Purification of carboxylic acids by complexation with selective solvents |
-
1955
- 1955-11-08 GB GB3196055A patent/GB818211A/en not_active Expired
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3123632A (en) * | 1964-03-03 | Process for the production of the | ||
| US6054610A (en) | 1995-06-07 | 2000-04-25 | Hfm International, Inc. | Method and apparatus for preparing purified terephthalic acid and isophthalic acid from mixed xylenes |
| US5929274A (en) | 1995-06-07 | 1999-07-27 | Hfm International, Inc. | Method to reduce carboxybenzaldehyde isomers in terephthalic acid or isophthalic acid |
| US5961935A (en) | 1995-06-07 | 1999-10-05 | Hfm International, Inc. | Method and apparatus for preparing purified terephthalic acid |
| US6013835A (en) | 1995-06-07 | 2000-01-11 | Hfm International, Inc. | Method and apparatus for preparing purified terephthalic acid |
| US6113866A (en) | 1995-06-07 | 2000-09-05 | Hfm International, Inc. | Apparatus for preparing purified terephthalic acid |
| WO1998024749A1 (en) * | 1996-12-06 | 1998-06-11 | Hfm International, Inc. | Method and apparatus for preparing purified terephthalic acid |
| EP1030829A4 (en) * | 1997-10-31 | 2003-01-02 | Hfm Int Inc | Method and apparatus for preparing purified terephthalic acid |
| WO1999062857A1 (en) * | 1998-05-29 | 1999-12-09 | Hfm International, Inc. | Method for preparing purified terephthalic acid and isophthalic acid from mixed xylenes |
| RU2214391C2 (en) * | 1998-05-29 | 2003-10-20 | Хфм Интернэшнл, Инк. | Method for preparing purified terephthalic and isophthalic acid from xylenes mixture |
| WO2006088470A3 (en) * | 2004-04-09 | 2007-03-29 | Gtc Technology Inc | Purification of carboxylic acids by complexation with selective solvents |
| US7307188B2 (en) | 2004-04-09 | 2007-12-11 | Gtc Technology, Inc. | Purification of carboxylic acids by complexation with selective solvents |
| RU2395486C2 (en) * | 2004-04-09 | 2010-07-27 | ДжиТиСи ТЕКНОЛОДЖИ ИНК. | Purification of carboxylic acids through complexing with selective solvents |
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