GB823507A - Improvements in or relating to the purification of tetrachlorophthalic acid and its anhydride - Google Patents
Improvements in or relating to the purification of tetrachlorophthalic acid and its anhydrideInfo
- Publication number
- GB823507A GB823507A GB364258A GB364258A GB823507A GB 823507 A GB823507 A GB 823507A GB 364258 A GB364258 A GB 364258A GB 364258 A GB364258 A GB 364258A GB 823507 A GB823507 A GB 823507A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- anhydride
- acid
- tetrachlorophthalic
- purification
- 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
- WZHHYIOUKQNLQM-UHFFFAOYSA-N 3,4,5,6-tetrachlorophthalic acid Chemical compound OC(=O)C1=C(Cl)C(Cl)=C(Cl)C(Cl)=C1C(O)=O WZHHYIOUKQNLQM-UHFFFAOYSA-N 0.000 title abstract 6
- 150000008064 anhydrides Chemical class 0.000 title abstract 4
- 238000000746 purification Methods 0.000 title abstract 3
- 239000000243 solution Substances 0.000 abstract 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract 4
- 238000009835 boiling Methods 0.000 abstract 3
- 239000002904 solvent Substances 0.000 abstract 3
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract 2
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 2
- 239000007864 aqueous solution Substances 0.000 abstract 2
- 238000002425 crystallisation Methods 0.000 abstract 2
- 230000008025 crystallization Effects 0.000 abstract 2
- -1 glycol acetal Chemical class 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- WNXJIVFYUVYPPR-UHFFFAOYSA-N 1,3-dioxolane Chemical compound C1COCO1 WNXJIVFYUVYPPR-UHFFFAOYSA-N 0.000 abstract 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 abstract 1
- DHKHKXVYLBGOIT-UHFFFAOYSA-N acetaldehyde Diethyl Acetal Natural products CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 abstract 1
- 150000007513 acids Chemical class 0.000 abstract 1
- 238000000998 batch distillation Methods 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 238000001944 continuous distillation Methods 0.000 abstract 1
- 239000011549 crystallization solution Substances 0.000 abstract 1
- NKDDWNXOKDWJAK-UHFFFAOYSA-N dimethoxymethane Chemical compound COCOC NKDDWNXOKDWJAK-UHFFFAOYSA-N 0.000 abstract 1
- 238000004090 dissolution Methods 0.000 abstract 1
- 150000002170 ethers Chemical class 0.000 abstract 1
- KLKFAASOGCDTDT-UHFFFAOYSA-N ethoxymethoxyethane Chemical compound CCOCOCC KLKFAASOGCDTDT-UHFFFAOYSA-N 0.000 abstract 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 abstract 1
- 239000012452 mother liquor Substances 0.000 abstract 1
- 238000006386 neutralization reaction Methods 0.000 abstract 1
- AUHHYELHRWCWEZ-UHFFFAOYSA-N tetrachlorophthalic anhydride Chemical compound ClC1=C(Cl)C(Cl)=C2C(=O)OC(=O)C2=C1Cl AUHHYELHRWCWEZ-UHFFFAOYSA-N 0.000 abstract 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/54—Preparation of carboxylic acid anhydrides
- C07C51/573—Separation; Purification; Stabilisation; Use of additives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Furan Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEI12788A DE1031779B (de) | 1957-02-04 | 1957-02-04 | Verfahren zur Reinigung von Tetrachlorphthalsaeure oder deren Anhydrid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB823507A true GB823507A (en) | 1959-11-11 |
Family
ID=7185448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB364258A Expired GB823507A (en) | 1957-02-04 | 1958-02-04 | Improvements in or relating to the purification of tetrachlorophthalic acid and its anhydride |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE564338A (enrdf_load_stackoverflow) |
| DE (1) | DE1031779B (enrdf_load_stackoverflow) |
| FR (1) | FR1202126A (enrdf_load_stackoverflow) |
| GB (1) | GB823507A (enrdf_load_stackoverflow) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0632032A1 (en) * | 1993-06-02 | 1995-01-04 | Nippon Light Metal Co., Ltd. | Process for purifying tetrachlorophthalic anhydride and high-purity tetrachlorophthalic anhydride |
| US7495113B2 (en) | 2004-12-22 | 2009-02-24 | Sabic Innovative Plastics | Method of purifying dianhydrides |
| US7863463B2 (en) | 2005-11-22 | 2011-01-04 | Sabic Innovative Plastics Ip B.V. | Method of purifying dianhydrides |
| RU2811367C1 (ru) * | 2023-03-02 | 2024-01-11 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Кабардино-Балкарский государственный университет им. Х.М. Бербекова" (КБГУ) | Способ получения 3,4,5,6-тетрахлорфталевой кислоты |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5706593A (en) * | 1997-02-06 | 1998-01-13 | Allard; Alice J. | Compact ironing board securable to an edge |
-
0
- BE BE564338D patent/BE564338A/xx unknown
-
1957
- 1957-02-04 DE DEI12788A patent/DE1031779B/de active Pending
-
1958
- 1958-01-24 FR FR1202126D patent/FR1202126A/fr not_active Expired
- 1958-02-04 GB GB364258A patent/GB823507A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0632032A1 (en) * | 1993-06-02 | 1995-01-04 | Nippon Light Metal Co., Ltd. | Process for purifying tetrachlorophthalic anhydride and high-purity tetrachlorophthalic anhydride |
| US5493033A (en) * | 1993-06-02 | 1996-02-20 | Nippon Light Metal Company, Ltd. | Process for purifying tetrachlorophthalic anhydride |
| US7495113B2 (en) | 2004-12-22 | 2009-02-24 | Sabic Innovative Plastics | Method of purifying dianhydrides |
| US7863463B2 (en) | 2005-11-22 | 2011-01-04 | Sabic Innovative Plastics Ip B.V. | Method of purifying dianhydrides |
| RU2811367C1 (ru) * | 2023-03-02 | 2024-01-11 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Кабардино-Балкарский государственный университет им. Х.М. Бербекова" (КБГУ) | Способ получения 3,4,5,6-тетрахлорфталевой кислоты |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1031779B (de) | 1958-06-12 |
| FR1202126A (fr) | 1960-01-07 |
| BE564338A (enrdf_load_stackoverflow) |
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