GB953482A - Continuous method for purifying crude phthalic acid - Google Patents
Continuous method for purifying crude phthalic acidInfo
- Publication number
- GB953482A GB953482A GB1242562A GB1242562A GB953482A GB 953482 A GB953482 A GB 953482A GB 1242562 A GB1242562 A GB 1242562A GB 1242562 A GB1242562 A GB 1242562A GB 953482 A GB953482 A GB 953482A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phthalic acid
- acid
- continuous method
- purifying crude
- precipitation
- 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
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 title abstract 8
- 238000011437 continuous method Methods 0.000 title 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 4
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 abstract 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- 238000001556 precipitation Methods 0.000 abstract 2
- 150000003839 salts Chemical class 0.000 abstract 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 238000010924 continuous production Methods 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 229920000728 polyester Polymers 0.000 abstract 1
- 239000011541 reaction mixture Substances 0.000 abstract 1
- 239000012266 salt solution Substances 0.000 abstract 1
- NHXVNEDMKGDNPR-UHFFFAOYSA-N zinc;pentane-2,4-dione Chemical compound [Zn+2].CC(=O)[CH-]C(C)=O.CC(=O)[CH-]C(C)=O NHXVNEDMKGDNPR-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/02—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds
- C08G63/12—Polyesters derived from hydroxycarboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from polycarboxylic acids and polyhydroxy compounds
- C08G63/16—Dicarboxylic acids and dihydroxy compounds
- C08G63/18—Dicarboxylic acids and dihydroxy compounds the acids or hydroxy compounds containing carbocyclic rings
- C08G63/181—Acids containing aromatic rings
-
- 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
-
- 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
- C07C51/47—Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10544561A | 1961-04-25 | 1961-04-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB953482A true GB953482A (en) | 1964-03-25 |
Family
ID=22305891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1242562A Expired GB953482A (en) | 1961-04-25 | 1962-03-30 | Continuous method for purifying crude phthalic acid |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE615996A (en, 2012) |
| CH (1) | CH410899A (en, 2012) |
| DE (1) | DE1242211B (en, 2012) |
| FR (1) | FR1323814A (en, 2012) |
| GB (1) | GB953482A (en, 2012) |
| NL (1) | NL276789A (en, 2012) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| US6013835A (en) | 1995-06-07 | 2000-01-11 | 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 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB695170A (en) * | 1950-09-07 | 1953-08-05 | Bofors Ab | Method of purifying organic compounds |
| DE1025875B (de) * | 1954-08-18 | 1958-03-13 | Basf Ag | Verfahren zur Abtrennung von Begleitstoffen aus kristallinen Stoffen |
| GB777782A (en) * | 1955-06-24 | 1957-06-26 | Ici Ltd | Purification of terephthalic acid |
| NL245503A (en, 2012) | 1958-11-18 |
-
0
- NL NL276789D patent/NL276789A/xx unknown
-
1962
- 1962-03-30 GB GB1242562A patent/GB953482A/en not_active Expired
- 1962-04-04 BE BE615996D patent/BE615996A/xx unknown
- 1962-04-04 DE DEC26626A patent/DE1242211B/de active Pending
- 1962-04-04 CH CH410462A patent/CH410899A/de unknown
- 1962-04-05 FR FR893473A patent/FR1323814A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1242211B (de) | 1967-06-15 |
| CH410899A (de) | 1966-04-15 |
| NL276789A (en, 2012) | |
| FR1323814A (fr) | 1963-04-12 |
| BE615996A (en, 2012) | 1962-10-04 |
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