JPS4962411A - - Google Patents
Info
- Publication number
- JPS4962411A JPS4962411A JP48069690A JP6969073A JPS4962411A JP S4962411 A JPS4962411 A JP S4962411A JP 48069690 A JP48069690 A JP 48069690A JP 6969073 A JP6969073 A JP 6969073A JP S4962411 A JPS4962411 A JP S4962411A
- Authority
- JP
- Japan
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/31—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation of cyclic compounds with ring-splitting
- C07C51/313—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation of cyclic compounds with ring-splitting with molecular oxygen
-
- 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
- C07C51/56—Preparation of carboxylic acid anhydrides from organic acids, their salts, their esters or their halides, e.g. by carboxylation
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)
- Furan Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7222372A FR2189363B1 (xx) | 1972-06-21 | 1972-06-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4962411A true JPS4962411A (xx) | 1974-06-17 |
| JPS5320967B2 JPS5320967B2 (xx) | 1978-06-29 |
Family
ID=9100556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6969073A Expired JPS5320967B2 (xx) | 1972-06-21 | 1973-06-20 |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPS5320967B2 (xx) |
| AR (1) | AR194909A1 (xx) |
| BE (1) | BE801167A (xx) |
| BR (1) | BR7304549D0 (xx) |
| CA (1) | CA998682A (xx) |
| DE (1) | DE2331391C3 (xx) |
| ES (1) | ES416062A1 (xx) |
| FR (1) | FR2189363B1 (xx) |
| GB (1) | GB1396489A (xx) |
| IN (1) | IN141271B (xx) |
| IT (1) | IT985725B (xx) |
| NL (1) | NL7308490A (xx) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH595430A5 (xx) | 1976-04-12 | 1978-02-15 | Leon Oudem | |
| FR2484417A1 (fr) * | 1980-06-13 | 1981-12-18 | Charbonnages Ste Chimique | Procede continu de deshydratation de l'acide maleique et installation pour sa mise en oeuvre |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2832802A (en) * | 1954-09-07 | 1958-04-29 | California Spray Chemical Corp | Recovery of purified maleic acid |
| GB1227887A (xx) * | 1967-12-13 | 1971-04-07 | ||
| US3642829A (en) * | 1968-01-30 | 1972-02-15 | Ucb Sa | Continuous process for the preparation of maleic anhydride from an aqueous solution of maleic acid by distillation |
| JPS4925252A (xx) * | 1972-05-24 | 1974-03-06 |
-
1972
- 1972-06-21 FR FR7222372A patent/FR2189363B1/fr not_active Expired
-
1973
- 1973-06-19 BR BR4549/73A patent/BR7304549D0/pt unknown
- 1973-06-19 GB GB2908273A patent/GB1396489A/en not_active Expired
- 1973-06-19 CA CA174,423A patent/CA998682A/en not_active Expired
- 1973-06-19 ES ES416062A patent/ES416062A1/es not_active Expired
- 1973-06-19 NL NL7308490A patent/NL7308490A/xx not_active Application Discontinuation
- 1973-06-20 IT IT50920/73A patent/IT985725B/it active
- 1973-06-20 BE BE132478A patent/BE801167A/xx unknown
- 1973-06-20 JP JP6969073A patent/JPS5320967B2/ja not_active Expired
- 1973-06-20 DE DE2331391A patent/DE2331391C3/de not_active Expired
- 1973-06-22 AR AR248684A patent/AR194909A1/es active
- 1973-07-11 IN IN1630/CAL/73A patent/IN141271B/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2832802A (en) * | 1954-09-07 | 1958-04-29 | California Spray Chemical Corp | Recovery of purified maleic acid |
| GB1227887A (xx) * | 1967-12-13 | 1971-04-07 | ||
| US3642829A (en) * | 1968-01-30 | 1972-02-15 | Ucb Sa | Continuous process for the preparation of maleic anhydride from an aqueous solution of maleic acid by distillation |
| JPS4925252A (xx) * | 1972-05-24 | 1974-03-06 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5320967B2 (xx) | 1978-06-29 |
| IN141271B (xx) | 1977-02-12 |
| BR7304549D0 (pt) | 1974-08-29 |
| DE2331391A1 (de) | 1974-01-24 |
| IT985725B (it) | 1974-12-20 |
| DE2331391B2 (de) | 1977-09-15 |
| DE2331391C3 (de) | 1978-05-11 |
| AR194909A1 (es) | 1973-08-24 |
| GB1396489A (en) | 1975-06-04 |
| BE801167A (fr) | 1973-12-20 |
| FR2189363B1 (xx) | 1974-10-25 |
| NL7308490A (xx) | 1973-12-27 |
| ES416062A1 (es) | 1976-03-01 |
| FR2189363A1 (xx) | 1974-01-25 |
| CA998682A (en) | 1976-10-19 |