JPS5879990A - 高純度無水フタル酸の製造方法 - Google Patents
高純度無水フタル酸の製造方法Info
- Publication number
- JPS5879990A JPS5879990A JP17780881A JP17780881A JPS5879990A JP S5879990 A JPS5879990 A JP S5879990A JP 17780881 A JP17780881 A JP 17780881A JP 17780881 A JP17780881 A JP 17780881A JP S5879990 A JPS5879990 A JP S5879990A
- Authority
- JP
- Japan
- Prior art keywords
- contact
- phthalic anhydride
- acid
- alloy
- phthalate
- 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.)
- Granted
Links
Landscapes
- Furan Compounds (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17780881A JPS5879990A (ja) | 1981-11-07 | 1981-11-07 | 高純度無水フタル酸の製造方法 |
| GB08218761A GB2105710B (en) | 1981-07-15 | 1982-06-29 | Method for manufacture of high-purity phthalic anhydride |
| US06/394,477 US4436922A (en) | 1981-07-06 | 1982-07-01 | Method for manufacture of high-purity phthalic anhydride |
| DE19823225079 DE3225079A1 (de) | 1981-07-06 | 1982-07-05 | Verfahren zur herstellung von phthalsaeure-anhydrid von hohem reinheitsgrad |
| FR8211850A FR2508906A1 (fr) | 1981-07-06 | 1982-07-06 | Procede de preparation d'un anhydride phtalique de haute purete a partir de l'anhydride phtalique brut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17780881A JPS5879990A (ja) | 1981-11-07 | 1981-11-07 | 高純度無水フタル酸の製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5879990A true JPS5879990A (ja) | 1983-05-13 |
| JPS6113711B2 JPS6113711B2 (cg-RX-API-DMAC7.html) | 1986-04-15 |
Family
ID=16037445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17780881A Granted JPS5879990A (ja) | 1981-07-06 | 1981-11-07 | 高純度無水フタル酸の製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5879990A (cg-RX-API-DMAC7.html) |
-
1981
- 1981-11-07 JP JP17780881A patent/JPS5879990A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6113711B2 (cg-RX-API-DMAC7.html) | 1986-04-15 |
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