IN163288B - - Google Patents
Info
- Publication number
- IN163288B IN163288B IN160/CAL/86A IN160CA1986A IN163288B IN 163288 B IN163288 B IN 163288B IN 160CA1986 A IN160CA1986 A IN 160CA1986A IN 163288 B IN163288 B IN 163288B
- Authority
- IN
- India
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C57/00—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms
- C07C57/02—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms with only carbon-to-carbon double bonds as unsaturation
- C07C57/03—Monocarboxylic acids
- C07C57/04—Acrylic acid; Methacrylic acid
-
- 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
- C07C51/47—Separation; Purification; Stabilisation; Use of additives by solid-liquid treatment; by chemisorption
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- 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)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60049248A JPH0669983B2 (ja) | 1985-03-14 | 1985-03-14 | メタクリル酸の精製法 |
| JP60074351A JPS61233644A (ja) | 1985-04-10 | 1985-04-10 | シトラコン酸の分離法 |
| JP13688285A JPH0684330B2 (ja) | 1985-06-25 | 1985-06-25 | メタクリル酸の精製法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN163288B true IN163288B (de) | 1988-09-03 |
Family
ID=27293569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN160/CAL/86A IN163288B (de) | 1985-03-14 | 1986-03-04 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US4879412A (de) |
| EP (1) | EP0194867B1 (de) |
| KR (1) | KR880000112B1 (de) |
| CN (1) | CN86102590B (de) |
| CA (1) | CA1274541A (de) |
| DE (1) | DE3661909D1 (de) |
| IN (1) | IN163288B (de) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5132456A (en) * | 1991-05-07 | 1992-07-21 | The Regents Of The University Of California | Sorption of carboxylic acid from carboxylic salt solutions at PHS close to or above the pKa of the acid, with regeneration with an aqueous solution of ammonia or low-molecular-weight alkylamine |
| JPH08134011A (ja) | 1994-11-04 | 1996-05-28 | Mitsui Toatsu Chem Inc | メタクリル酸の精製方法 |
| US6153791A (en) * | 1999-08-02 | 2000-11-28 | Archer-Daniels-Midland Company | Process for purifying 2-keto-L-gulonic acid |
| GB0403592D0 (en) | 2004-02-18 | 2004-03-24 | Lucite Int Uk Ltd | A catalyst system |
| DE102010062601A1 (de) * | 2010-12-08 | 2012-06-14 | Evonik Stockhausen Gmbh | Verfahren zur Herstellung von (Meth)Acrylsäureestern |
| AR085338A1 (es) | 2011-02-09 | 2013-09-25 | Lucite Int Uk Ltd | Un proceso para la produccion de acido (met)acrilico y derivados y polimeros producidos a partir del mismo |
| WO2013163806A1 (en) | 2012-05-03 | 2013-11-07 | Evonik Industries Ag | Process for preparation of highly pure, non-yellowing methacrylic acid |
| CN104203894B (zh) * | 2012-05-03 | 2017-08-04 | 赢创罗姆有限公司 | 高纯度非黄变(甲基)丙烯酸的制备方法 |
| WO2015031182A1 (en) | 2013-08-28 | 2015-03-05 | Archer Daniels Midland Company | Separation of propionic acid from acrylic acid |
| SG11201808954RA (en) * | 2016-04-28 | 2018-11-29 | Mitsubishi Chem Corp | Method for purifying methacrylic acid and method for producing methacrylic acid |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1452566A (fr) * | 1964-11-06 | 1966-02-25 | Mitsubishi Petrochemical Co | Procédé perfectionné pour récupérer les esters acryliques et méthacryliques sous forme purifiée à partir de solutions aqueuses diluées d'acide acrylique et méthacrylique |
| AT261561B (de) * | 1966-02-01 | 1968-05-10 | Donau Chemie Ag | Verfahren zur Entfernung insbesondere schwach saurer Verunreinigungen aus alkaliempfindlichen, beschränkt wasserlöslichen Flüssigkeiten |
| JPS502900Y2 (de) * | 1971-06-11 | 1975-01-25 | ||
| JPS5726253B2 (de) * | 1973-09-13 | 1982-06-03 | ||
| JPS6054295B2 (ja) * | 1977-01-11 | 1985-11-29 | 三井東圧化学株式会社 | アクリル酸のソ−ダ塩の精製方法 |
| NL7807420A (nl) * | 1977-07-22 | 1979-01-24 | Mitsubishi Chem Ind | Werkwijze voor het afscheiden van methacrylzuur uit een mengsel, dat water, methanol, methacrylzuur en methylmethacrylaat bevat. |
| JPS56108735A (en) * | 1980-02-01 | 1981-08-28 | Sumitomo Chem Co Ltd | Treating method of waste water in preparation of methacrylic acid |
| JPS5777643A (en) * | 1980-10-31 | 1982-05-15 | Asahi Chem Ind Co Ltd | Stabilizing method of methacrylic acid against heat |
-
1986
- 1986-03-03 US US06/835,737 patent/US4879412A/en not_active Expired - Lifetime
- 1986-03-04 IN IN160/CAL/86A patent/IN163288B/en unknown
- 1986-03-12 EP EP86301763A patent/EP0194867B1/de not_active Expired
- 1986-03-12 DE DE8686301763T patent/DE3661909D1/de not_active Expired
- 1986-03-13 KR KR1019860001812A patent/KR880000112B1/ko not_active IP Right Cessation
- 1986-03-13 CA CA000503986A patent/CA1274541A/en not_active Expired - Lifetime
- 1986-03-14 CN CN86102590A patent/CN86102590B/zh not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN86102590A (zh) | 1987-01-21 |
| DE3661909D1 (en) | 1989-03-02 |
| KR860007190A (ko) | 1986-10-08 |
| CA1274541A (en) | 1990-09-25 |
| KR880000112B1 (ko) | 1988-03-12 |
| US4879412A (en) | 1989-11-07 |
| EP0194867A1 (de) | 1986-09-17 |
| CN86102590B (zh) | 1988-08-03 |
| EP0194867B1 (de) | 1989-01-25 |