ES416062A1 - Process for the dehydration of maleic acid - Google Patents
Process for the dehydration of maleic acidInfo
- Publication number
- ES416062A1 ES416062A1 ES416062A ES416062A ES416062A1 ES 416062 A1 ES416062 A1 ES 416062A1 ES 416062 A ES416062 A ES 416062A ES 416062 A ES416062 A ES 416062A ES 416062 A1 ES416062 A1 ES 416062A1
- Authority
- ES
- Spain
- Prior art keywords
- dehydration
- maleic acid
- acid
- anhydride
- maleic
- 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
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)
Abstract
Procedure for the dehydration of maleic acid, which comprises heating this acid in an evaporator in which it circulates, at a temperature sufficient to cause the formation of anhydride, characterized in that the dehydration is carried out in the presence of a liquid with a boiling point higher than that of maleic anhydride. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7222372A FR2189363B1 (en) | 1972-06-21 | 1972-06-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
ES416062A1 true ES416062A1 (en) | 1976-03-01 |
Family
ID=9100556
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES416062A Expired ES416062A1 (en) | 1972-06-21 | 1973-06-19 | Process for the dehydration of maleic acid |
Country Status (12)
Country | Link |
---|---|
JP (1) | JPS5320967B2 (en) |
AR (1) | AR194909A1 (en) |
BE (1) | BE801167A (en) |
BR (1) | BR7304549D0 (en) |
CA (1) | CA998682A (en) |
DE (1) | DE2331391C3 (en) |
ES (1) | ES416062A1 (en) |
FR (1) | FR2189363B1 (en) |
GB (1) | GB1396489A (en) |
IN (1) | IN141271B (en) |
IT (1) | IT985725B (en) |
NL (1) | NL7308490A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH595430A5 (en) | 1976-04-12 | 1978-02-15 | Leon Oudem | |
FR2484417A1 (en) * | 1980-06-13 | 1981-12-18 | Charbonnages Ste Chimique | CONTINUOUS PROCESS FOR DEHYDRATION OF MALEIC ACID AND INSTALLATION FOR ITS IMPLEMENTATION |
Family Cites Families (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 |
CH488644A (en) * | 1967-12-13 | 1970-04-15 | Luwa Ag | Process and device for the continuous production of carboxylic acid anhydrides from polybasic carboxylic acids |
GB1242320A (en) * | 1968-01-30 | 1971-08-11 | Ucb Union Chimiqu Chemische Be | Process for the dehydration of maleic acid |
US3807273A (en) * | 1972-05-24 | 1974-04-30 | Sutures Inc | Method of making pliable, dyed and braided polyester sutures |
-
1972
- 1972-06-21 FR FR7222372A patent/FR2189363B1/fr not_active Expired
-
1973
- 1973-06-19 CA CA174,423A patent/CA998682A/en not_active Expired
- 1973-06-19 NL NL7308490A patent/NL7308490A/xx not_active Application Discontinuation
- 1973-06-19 GB GB2908273A patent/GB1396489A/en not_active Expired
- 1973-06-19 ES ES416062A patent/ES416062A1/en not_active Expired
- 1973-06-19 BR BR4549/73A patent/BR7304549D0/en unknown
- 1973-06-20 BE BE132478A patent/BE801167A/en unknown
- 1973-06-20 JP JP6969073A patent/JPS5320967B2/ja not_active Expired
- 1973-06-20 DE DE2331391A patent/DE2331391C3/en not_active Expired
- 1973-06-20 IT IT50920/73A patent/IT985725B/en active
- 1973-06-22 AR AR248684A patent/AR194909A1/en active
- 1973-07-11 IN IN1630/CAL/73A patent/IN141271B/en unknown
Also Published As
Publication number | Publication date |
---|---|
AR194909A1 (en) | 1973-08-24 |
IT985725B (en) | 1974-12-20 |
JPS4962411A (en) | 1974-06-17 |
DE2331391A1 (en) | 1974-01-24 |
DE2331391B2 (en) | 1977-09-15 |
DE2331391C3 (en) | 1978-05-11 |
NL7308490A (en) | 1973-12-27 |
FR2189363B1 (en) | 1974-10-25 |
FR2189363A1 (en) | 1974-01-25 |
GB1396489A (en) | 1975-06-04 |
BR7304549D0 (en) | 1974-08-29 |
CA998682A (en) | 1976-10-19 |
JPS5320967B2 (en) | 1978-06-29 |
IN141271B (en) | 1977-02-12 |
BE801167A (en) | 1973-12-20 |
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