JPS54122209A - Recovery of unsaturated aliphatic acid and alcohol - Google Patents
Recovery of unsaturated aliphatic acid and alcoholInfo
- Publication number
- JPS54122209A JPS54122209A JP3034178A JP3034178A JPS54122209A JP S54122209 A JPS54122209 A JP S54122209A JP 3034178 A JP3034178 A JP 3034178A JP 3034178 A JP3034178 A JP 3034178A JP S54122209 A JPS54122209 A JP S54122209A
- Authority
- JP
- Japan
- Prior art keywords
- tower
- line
- alcohol
- taken out
- inorganic salt
- 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.)
- Pending
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To recover methanol by supplying an aqueous solution of inorganic salt containing methanol, which is taken out of the bottom of the alcohol extraction tower, into the middle stages of the alcohol distillation tower without discharging the inorganic salt and methacrylic acid from the reaction vessel.
CONSTITUTION: The distilled vapor from the esterification vessel 10 is led into the condenser 16 and taken out through the line 17. The solution in the vessel 10 is led into the decanter 13 and the organic layer is taken out through the line 15. Both of them are led into the alcohol extraction tower 21 through the line 19. The extract containing excess methanol extracted with an aqueous solution of inorganic salt 20 is supplied to the middle stages of the alcohol distillation tower 26 through the line 23, to recover the alcohol 27 from the top of the tower. The aqueous solution of the inorganic salt and methacrylic acid are recovered from the bottom of the tower. The organic layer of the extraction residue in the tower 21 is taken out through the line 22 and subjected to the purification of methacrylate and the recovery of the extracted inorganic solvent. The water formed is taken out as vapor from the side flow line 32.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3034178A JPS54122209A (en) | 1978-03-15 | 1978-03-15 | Recovery of unsaturated aliphatic acid and alcohol |
| CA321,785A CA1131657A (en) | 1978-02-28 | 1979-02-19 | Recovery of methacrylic acid and alcohol in methacrylate production process |
| NL7901502A NL7901502A (en) | 1978-02-28 | 1979-02-26 | PROCESS FOR PREPARING A METHACRYLIC ACID ESTER FROM A DILUTED SOLUTION OF METHACRYLIC ACID IN WATER. |
| GB7906677A GB2015509B (en) | 1978-02-28 | 1979-02-26 | Recovery of methacrylic acid and alcohol in methacrylate production process |
| IT48149/79A IT1114704B (en) | 1978-02-28 | 1979-02-27 | PROCEDURE FOR THE PREPARATION OF METHACRYLATES AND THE RECOVERY OF ALCOHOL AND METHACRYLIC ACID |
| DE19792907602 DE2907602A1 (en) | 1978-02-28 | 1979-02-27 | PROCESS FOR THE PRODUCTION OF METHACRYLIC ACID ESTERS |
| FR7905153A FR2418216B1 (en) | 1978-02-28 | 1979-02-28 | IMPROVED PROCESS FOR THE CONTINUOUS SYNTHESIS OF METHYL OR ETHYL METHACRYLATE WITH RECOVERY OF NON-CONVERTED METHACRYLIC ACID AND ALCOHOL |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3034178A JPS54122209A (en) | 1978-03-15 | 1978-03-15 | Recovery of unsaturated aliphatic acid and alcohol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54122209A true JPS54122209A (en) | 1979-09-21 |
Family
ID=12301119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3034178A Pending JPS54122209A (en) | 1978-02-28 | 1978-03-15 | Recovery of unsaturated aliphatic acid and alcohol |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54122209A (en) |
-
1978
- 1978-03-15 JP JP3034178A patent/JPS54122209A/en active Pending
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