GB932246A - Purification of phthalic acids - Google Patents
Purification of phthalic acidsInfo
- Publication number
- GB932246A GB932246A GB3830159A GB3830159A GB932246A GB 932246 A GB932246 A GB 932246A GB 3830159 A GB3830159 A GB 3830159A GB 3830159 A GB3830159 A GB 3830159A GB 932246 A GB932246 A GB 932246A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- phthalic acid
- phthalic
- resulting solution
- xylene
- 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
- 150000003022 phthalic acids Chemical class 0.000 title 1
- 238000000746 purification Methods 0.000 title 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 abstract 10
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 abstract 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 abstract 3
- 239000002253 acid Substances 0.000 abstract 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 2
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 abstract 2
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 abstract 2
- IVSZLXZYQVIEFR-UHFFFAOYSA-N m-xylene Chemical group CC1=CC=CC(C)=C1 IVSZLXZYQVIEFR-UHFFFAOYSA-N 0.000 abstract 2
- 239000000243 solution Substances 0.000 abstract 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 abstract 1
- 235000011054 acetic acid Nutrition 0.000 abstract 1
- 150000001243 acetic acids Chemical class 0.000 abstract 1
- 239000000908 ammonium hydroxide Substances 0.000 abstract 1
- 150000003863 ammonium salts Chemical class 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 230000032050 esterification Effects 0.000 abstract 1
- 238000005886 esterification reaction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 230000001376 precipitating effect Effects 0.000 abstract 1
- 238000005406 washing Methods 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
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)
- Polyesters Or Polycarbonates (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US77460958A | 1958-11-18 | 1958-11-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB932246A true GB932246A (en) | 1963-07-24 |
Family
ID=25101755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3830159A Expired GB932246A (en) | 1958-11-18 | 1959-11-11 | Purification of phthalic acids |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE584755A (enrdf_load_stackoverflow) |
| CH (1) | CH388922A (enrdf_load_stackoverflow) |
| DE (1) | DE1117100B (enrdf_load_stackoverflow) |
| FR (1) | FR1244576A (enrdf_load_stackoverflow) |
| GB (1) | GB932246A (enrdf_load_stackoverflow) |
| NL (1) | NL245503A (enrdf_load_stackoverflow) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL276789A (enrdf_load_stackoverflow) | 1961-04-25 | |||
| MX157433A (es) * | 1981-06-12 | 1988-11-23 | Celanese Mexicana Sa | Procedimiento continuo para la obtencion de acido tereftalico y glicol puros,a partir de desperdicios de tereftalato de polietileno |
| 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 (3)
| 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 |
-
0
- NL NL245503D patent/NL245503A/xx unknown
-
1959
- 1959-11-11 GB GB3830159A patent/GB932246A/en not_active Expired
- 1959-11-16 FR FR810281A patent/FR1244576A/fr not_active Expired
- 1959-11-17 BE BE584755A patent/BE584755A/fr unknown
- 1959-11-17 CH CH8067059A patent/CH388922A/fr unknown
- 1959-11-18 DE DEC20199A patent/DE1117100B/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR1244576A (fr) | 1960-10-28 |
| DE1117100B (de) | 1961-11-16 |
| CH388922A (fr) | 1965-03-15 |
| BE584755A (fr) | 1960-05-17 |
| NL245503A (enrdf_load_stackoverflow) |
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