ZA841915B - Process for removing napthoquinone from phthalic anhydride - Google Patents
Process for removing napthoquinone from phthalic anhydrideInfo
- Publication number
- ZA841915B ZA841915B ZA841915A ZA841915A ZA841915B ZA 841915 B ZA841915 B ZA 841915B ZA 841915 A ZA841915 A ZA 841915A ZA 841915 A ZA841915 A ZA 841915A ZA 841915 B ZA841915 B ZA 841915B
- Authority
- ZA
- South Africa
- Prior art keywords
- napthoquinone
- phthalic anhydride
- phthalic
- anhydride
- removing napthoquinone
- Prior art date
Links
- FRASJONUBLZVQX-UHFFFAOYSA-N 1,4-naphthoquinone Chemical compound C1=CC=C2C(=O)C=CC(=O)C2=C1 FRASJONUBLZVQX-UHFFFAOYSA-N 0.000 title 1
- LGRFSURHDFAFJT-UHFFFAOYSA-N Phthalic anhydride Natural products C1=CC=C2C(=O)OC(=O)C2=C1 LGRFSURHDFAFJT-UHFFFAOYSA-N 0.000 title 1
- JHIWVOJDXOSYLW-UHFFFAOYSA-N butyl 2,2-difluorocyclopropane-1-carboxylate Chemical compound CCCCOC(=O)C1CC1(F)F JHIWVOJDXOSYLW-UHFFFAOYSA-N 0.000 title 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
- C07C51/54—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)
- Furan Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3309310A DE3309310A1 (de) | 1983-03-16 | 1983-03-16 | Verfahren zur entfernung von naphthochinon aus durch luftoxidation von naphthalin hergestelltem phthalsaeureanhydrid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA841915B true ZA841915B (en) | 1984-11-28 |
Family
ID=6193567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA841915A ZA841915B (en) | 1983-03-16 | 1984-03-15 | Process for removing napthoquinone from phthalic anhydride |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS59176271A (enrdf_load_stackoverflow) |
| DE (1) | DE3309310A1 (enrdf_load_stackoverflow) |
| ZA (1) | ZA841915B (enrdf_load_stackoverflow) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19939629A1 (de) * | 1999-08-20 | 2001-02-22 | Basf Ag | Verfahren zur Herstellung von spezifikationsgerechtem Phthalsäureanhydrid |
-
1983
- 1983-03-16 DE DE3309310A patent/DE3309310A1/de not_active Withdrawn
-
1984
- 1984-03-15 JP JP59048275A patent/JPS59176271A/ja active Granted
- 1984-03-15 ZA ZA841915A patent/ZA841915B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPH058194B2 (enrdf_load_stackoverflow) | 1993-02-01 |
| JPS59176271A (ja) | 1984-10-05 |
| DE3309310A1 (de) | 1984-09-20 |
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