BE713901A - - Google Patents
Info
- Publication number
- BE713901A BE713901A BE713901DA BE713901A BE 713901 A BE713901 A BE 713901A BE 713901D A BE713901D A BE 713901DA BE 713901 A BE713901 A BE 713901A
- Authority
- BE
- Belgium
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
- C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
- C07C51/25—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring
- C07C51/252—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring of propene, butenes, acrolein or methacrolein
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S203/00—Distillation: processes, separatory
- Y10S203/03—Acrylonitrile
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S203/00—Distillation: processes, separatory
- Y10S203/22—Accessories
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)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US639236A US3414485A (en) | 1967-05-17 | 1967-05-17 | Process for drying methacrylic acid by extraction and azeotropic distillation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE713901A true BE713901A (en:Method) | 1968-10-21 |
Family
ID=24563277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE713901D BE713901A (en:Method) | 1967-05-17 | 1968-04-19 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3414485A (en:Method) |
| BE (1) | BE713901A (en:Method) |
| DE (1) | DE1768280A1 (en:Method) |
| FR (1) | FR1569929A (en:Method) |
| GB (1) | GB1209498A (en:Method) |
| NL (1) | NL6805008A (en:Method) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3527677A (en) * | 1969-03-06 | 1970-09-08 | Goodrich Co B F | Process for dehydration of aqueous acrylic acid solutions by extractive - azeotropic distillation with 2-ethylhexanol or 2-ethylhexylacrylate |
| US3663375A (en) * | 1970-03-31 | 1972-05-16 | American Cyanamid Co | Separation of components from a reaction product mixture of water isobutyric acid and methacrylic acid by phase separation and distillations |
| JPS4941413B1 (en:Method) * | 1970-12-28 | 1974-11-08 | ||
| JPS5534784B2 (en:Method) * | 1972-05-23 | 1980-09-09 | ||
| JPS4935323A (en:Method) * | 1972-08-05 | 1974-04-01 | ||
| US4040913A (en) * | 1975-09-02 | 1977-08-09 | Rohm And Haas Company | Recovery of methacrylic acid from the effluent obtained from the condensation of formaldehyde and propionic acid |
| US4142058A (en) * | 1977-12-08 | 1979-02-27 | Mitsubishi Rayon Co., Ltd. | Method of separating and purifying methacrylic acid |
| US4147721A (en) * | 1978-04-06 | 1979-04-03 | Halcon Research And Development Corporation | Process for recovering methacrylic acid |
| US4253948A (en) * | 1979-05-14 | 1981-03-03 | Standard Oil Company | Dehydration of water soluble monomers with liquid carbon dioxide |
| JPS6016927B2 (ja) * | 1979-07-19 | 1985-04-30 | 三菱レイヨン株式会社 | メタクリル酸の抽出分離法 |
| US4554054A (en) * | 1983-12-09 | 1985-11-19 | Rohm And Haas Company | Methacrylic acid separation |
| US4599144A (en) * | 1984-06-25 | 1986-07-08 | Standard Oil Company (Indiana) | Process for recovery of methacrylic acid |
| US4736062A (en) * | 1984-06-25 | 1988-04-05 | Amoco Corporation | Process for preparing methacrylic acid |
| DE3500678A1 (de) * | 1985-01-11 | 1986-07-17 | Röhm GmbH, 6100 Darmstadt | Verfahren zur gewinnung wasserfreier methacrylsaeure |
| US4671857A (en) * | 1986-09-26 | 1987-06-09 | Eastman Kodak Company | Method for separating methacrylic acid from isobutyric acid |
| US4994150A (en) * | 1989-08-24 | 1991-02-19 | Phillips Petroleum Company | Process for the purification of esters of mercapto acids |
| US20030121768A1 (en) * | 2001-12-13 | 2003-07-03 | Salvador Aldrett Lee | Alternate extraction solvent for acrylic acid purification process |
| JP4032033B2 (ja) | 2003-06-30 | 2008-01-16 | ローム アンド ハース カンパニー | 高純度メタクリル酸の製造法 |
| WO2005042061A1 (en) * | 2003-10-20 | 2005-05-12 | Stryker Instruments | Manifold assembly |
| DE102008043609A1 (de) | 2008-11-10 | 2010-05-12 | Evonik Röhm Gmbh | Verfahren zur Reduzierung des Wassergehalts in (Meth)acrylsäure |
| DE102010028781A1 (de) * | 2010-05-10 | 2011-11-10 | Evonik Stockhausen Gmbh | Abtrennung von Acrylsäure mittels einer einen Seitenabzug aufweisenden Destillationskolonne |
| DE102013209821A1 (de) * | 2013-05-27 | 2014-11-27 | Evonik Industries Ag | Verfahren zur Dehydratisierung von alpha-substituierten Carbonsäuren |
| CN116023258A (zh) * | 2021-10-26 | 2023-04-28 | 中国石油化工股份有限公司 | 一种生产甲基丙烯酸高碳醇酯的方法及装置 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1668380A (en) * | 1923-12-28 | 1928-05-01 | Distilleries Des Deux Sevres | Continuous process for the dehydration of volatile fatty acids |
| US1915002A (en) * | 1929-03-19 | 1933-06-20 | Us Ind Alcohol Co | Process of obtaining fatty acids in anhydrous state from aqueous solutions |
| US2266004A (en) * | 1939-04-18 | 1941-12-16 | Du Pont | Process for partially hydrolyzing acrylate esters |
| GB650343A (en) * | 1948-07-23 | 1951-02-21 | Basil Henry Atkinson | Improvements in or relating to the manufacture of methacrylic acid |
| US2922815A (en) * | 1956-03-22 | 1960-01-26 | Solvay Werke Gmbh | Concentration of aqueous acrylic acid |
| US3337740A (en) * | 1962-02-13 | 1967-08-22 | Deering Milliken Res Corp | Process for separating acrylic acid from impurities |
| GB995472A (en) * | 1963-05-16 | 1965-06-16 | Distillers Co Yeast Ltd | Improvements in or relating to acrylic acid production |
| GB997325A (en) * | 1963-06-20 | 1965-07-07 | Distillers Co Yeast Ltd | Recovery of acrylic acid |
-
1967
- 1967-05-17 US US639236A patent/US3414485A/en not_active Expired - Lifetime
-
1968
- 1968-04-09 NL NL6805008A patent/NL6805008A/xx unknown
- 1968-04-10 GB GB07397/68A patent/GB1209498A/en not_active Expired
- 1968-04-17 FR FR1569929D patent/FR1569929A/fr not_active Expired
- 1968-04-19 BE BE713901D patent/BE713901A/xx unknown
- 1968-04-24 DE DE19681768280 patent/DE1768280A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3414485A (en) | 1968-12-03 |
| NL6805008A (en:Method) | 1968-11-18 |
| GB1209498A (en) | 1970-10-21 |
| FR1569929A (en:Method) | 1969-06-06 |
| DE1768280A1 (de) | 1971-10-28 |