GB2004886A - Separation of methacrolein and/or methacrylic acid from a gaseous mixture - Google Patents
Separation of methacrolein and/or methacrylic acid from a gaseous mixtureInfo
- Publication number
- GB2004886A GB2004886A GB7838561A GB7838561A GB2004886A GB 2004886 A GB2004886 A GB 2004886A GB 7838561 A GB7838561 A GB 7838561A GB 7838561 A GB7838561 A GB 7838561A GB 2004886 A GB2004886 A GB 2004886A
- Authority
- GB
- United Kingdom
- Prior art keywords
- methacrolein
- methacrylic acid
- reaction mixture
- tower
- introducing
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/78—Separation; Purification; Stabilisation; Use of additives
- C07C45/783—Separation; Purification; Stabilisation; Use of additives by gas-liquid treatment, e.g. by gas-liquid absorption
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
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)
Abstract
Methacrolein and methacrylic acid are separated from the gaseous reaction mixture obtained by catalytic oxidation of methacrolein or a methacrolein precursor by introducing the gaseous reaction mixture into a condenser wherein the reaction mixture is brought into direct countercurrent contact with condensed liquor previously obtained in the condenser to condense methacrylic acid and water vapour in the reaction mixture, introducing the gaseous residue into the bottom of a methacrolein-absorption tower wherein methacrolein in the gas is absorbed into an aqueous solution of methacrylic acid supplied to the top of the absorption tower, and sending the resulting methacrolein-containing, aqueous methacrylic acid solution obtained from the bottom of the tower to the top of a methacrolein-stripping tower while introducing the condensed liquor obtained by condensation of said gaseous reaction mixture into the middle part or top of the stripping tower wherein an inert gas is supplied to the bottom of the tower whereby methacrolein withdrawn from the top of the stripping tower and the aqueous methacrylic acid solution is withdrawn from the bottom.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11704077A JPS6059891B2 (en) | 1977-09-28 | 1977-09-28 | Method for separating methacrolein and methacrylic acid |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2004886A true GB2004886A (en) | 1979-04-11 |
GB2004886B GB2004886B (en) | 1982-03-10 |
Family
ID=14701940
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7838561A Expired GB2004886B (en) | 1977-09-28 | 1978-09-28 | Separation of methacrolien or meth-acrylic acid from a gaseous mixture |
Country Status (5)
Country | Link |
---|---|
JP (1) | JPS6059891B2 (en) |
DE (1) | DE2842092A1 (en) |
FR (1) | FR2404619A1 (en) |
GB (1) | GB2004886B (en) |
NL (1) | NL7809746A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4554054A (en) * | 1983-12-09 | 1985-11-19 | Rohm And Haas Company | Methacrylic acid separation |
EP0297788A2 (en) * | 1987-06-27 | 1989-01-04 | MITSUI TOATSU CHEMICALS, Inc. | Process of quenching reaction product gas containing methacrylic acid and method of treating quenched liquid |
US4925981A (en) * | 1982-01-22 | 1990-05-15 | Nippon Shokubai Kagaku Kogyo Co., Ltd. | Method of isolating methacrylic acid |
EP0559227A3 (en) * | 1992-03-06 | 1993-09-29 | Sumitomo Chemical Company Limited | Process for producing acrolein |
EP0581222A1 (en) * | 1992-07-31 | 1994-02-02 | BASF Aktiengesellschaft | Process for separating methacrolein from a gaseous mixture |
EP0847978A1 (en) * | 1996-12-16 | 1998-06-17 | Nippon Shokubai Co., Ltd. | Process for producing (meth)acrylic acid |
EP1484303A3 (en) * | 2003-06-05 | 2005-04-20 | Nippon Shokubai Co., Ltd. | Method for production of (meth)acrylic acid |
CN113413626A (en) * | 2021-08-24 | 2021-09-21 | 山东蓝湾新材料有限公司 | Quenching absorption tower for preparing acrylic acid by tower top gas recirculation |
EP3945086A1 (en) | 2020-07-30 | 2022-02-02 | Röhm GmbH | C-4 based method for preparing mma with recovery and recycling of methacrolein |
EP3945088A1 (en) | 2020-07-30 | 2022-02-02 | Röhm GmbH | Process for minimising the loss of activity in reaction steps carried out in circulation |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4234519A (en) * | 1979-01-26 | 1980-11-18 | Halcon Research And Development Corp. | Recovery of methacrolein |
JP2504777B2 (en) * | 1987-06-27 | 1996-06-05 | 三井東圧化学株式会社 | Method of quenching reaction gas |
CA1307004C (en) * | 1988-06-03 | 1992-09-01 | Syoichi Matsumoto | Process for recovering methacrolein |
DE4026732A1 (en) * | 1990-08-24 | 1992-02-27 | Huels Chemische Werke Ag | METHOD FOR CLEANING AN OXIDATION EXHAUST GAS WITH ENERGY RECOVERY |
US7799946B2 (en) * | 2007-02-14 | 2010-09-21 | Saudi Basic Industries Corporation | Process for separating methacrolein from methacrylic acid in a gas phase product from the partial oxidation of isobutene |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB953763A (en) * | 1962-02-06 | 1964-04-02 | Distillers Co Yeast Ltd | Improvements in and relating to the production of unsaturated aliphatic acids |
FR1393175A (en) * | 1963-05-18 | 1965-03-19 | Distillers Co Yeast Ltd | Process for the production of unsaturated aliphatic acids |
FR1535061A (en) * | 1966-08-09 | 1968-08-02 | Knapsack Ag | Process for separating acrylic acid from reaction gases obtained by oxidation of propylene or acrolein |
US3433840A (en) * | 1966-12-29 | 1969-03-18 | Sumitomo Chemical Co | Process for recovering acrolein by quenching,absorption and plural distillation |
US3513632A (en) * | 1968-12-18 | 1970-05-26 | Union Carbide Corp | Separation of acrylic acid and acrolein |
JPS5148609A (en) * | 1974-10-23 | 1976-04-26 | Asahi Glass Co Ltd | NIDANSANKANYORUISOPUCHIRENKARANO METAKU |
-
1977
- 1977-09-28 JP JP11704077A patent/JPS6059891B2/en not_active Expired
-
1978
- 1978-09-26 NL NL7809746A patent/NL7809746A/en not_active Application Discontinuation
- 1978-09-27 DE DE19782842092 patent/DE2842092A1/en active Granted
- 1978-09-27 FR FR7827689A patent/FR2404619A1/en active Granted
- 1978-09-28 GB GB7838561A patent/GB2004886B/en not_active Expired
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4925981A (en) * | 1982-01-22 | 1990-05-15 | Nippon Shokubai Kagaku Kogyo Co., Ltd. | Method of isolating methacrylic acid |
US4554054A (en) * | 1983-12-09 | 1985-11-19 | Rohm And Haas Company | Methacrylic acid separation |
EP0297788A2 (en) * | 1987-06-27 | 1989-01-04 | MITSUI TOATSU CHEMICALS, Inc. | Process of quenching reaction product gas containing methacrylic acid and method of treating quenched liquid |
EP0297788A3 (en) * | 1987-06-27 | 1989-10-11 | Mitsui Toatsu Chemicals, Inc. | Process of quenching reaction product gas containing methacrylic acid and method of treating quenched liquid |
US4987252A (en) * | 1987-06-27 | 1991-01-22 | Mitsui Toatsu Chemicals, Incorporated | Quenching process of reaction product gas containing methacrylic acid and treatment method of quenched liquid |
US5326916A (en) * | 1992-03-06 | 1994-07-05 | Sumitomo Chemical Co., Ltd. | Process for producing acrolein |
EP0559227A3 (en) * | 1992-03-06 | 1993-09-29 | Sumitomo Chemical Company Limited | Process for producing acrolein |
US5356460A (en) * | 1992-07-31 | 1994-10-18 | Basf Aktiengesellschaft | Removal of methacrolein from a gaseous mixture |
EP0581222A1 (en) * | 1992-07-31 | 1994-02-02 | BASF Aktiengesellschaft | Process for separating methacrolein from a gaseous mixture |
EP0847978A1 (en) * | 1996-12-16 | 1998-06-17 | Nippon Shokubai Co., Ltd. | Process for producing (meth)acrylic acid |
US5872288A (en) * | 1996-12-16 | 1999-02-16 | Nippon Shokubai Co., Ltd. | Process for producing (meth) acrylic acid |
EP1484303A3 (en) * | 2003-06-05 | 2005-04-20 | Nippon Shokubai Co., Ltd. | Method for production of (meth)acrylic acid |
US7332626B2 (en) | 2003-06-05 | 2008-02-19 | Nippon Shokubai Co., Ltd. | Method for production of (meth) acrylic acid |
US7511172B2 (en) | 2003-06-05 | 2009-03-31 | Nippon Shokubai Co., Ltd. | Method for production of (meth)acrylic acid |
EP3945086A1 (en) | 2020-07-30 | 2022-02-02 | Röhm GmbH | C-4 based method for preparing mma with recovery and recycling of methacrolein |
EP3945088A1 (en) | 2020-07-30 | 2022-02-02 | Röhm GmbH | Process for minimising the loss of activity in reaction steps carried out in circulation |
WO2022022939A1 (en) | 2020-07-30 | 2022-02-03 | Röhm Gmbh | Process for minimising the loss of activity in reaction steps carried out in circulation |
CN113413626A (en) * | 2021-08-24 | 2021-09-21 | 山东蓝湾新材料有限公司 | Quenching absorption tower for preparing acrylic acid by tower top gas recirculation |
Also Published As
Publication number | Publication date |
---|---|
NL7809746A (en) | 1979-03-30 |
GB2004886B (en) | 1982-03-10 |
DE2842092A1 (en) | 1979-04-05 |
JPS5452027A (en) | 1979-04-24 |
FR2404619B1 (en) | 1983-09-02 |
FR2404619A1 (en) | 1979-04-27 |
JPS6059891B2 (en) | 1985-12-27 |
DE2842092C2 (en) | 1990-06-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PE20 | Patent expired after termination of 20 years |
Effective date: 19980927 |