IN2014CN02726A - - Google Patents
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- Publication number
- IN2014CN02726A IN2014CN02726A IN2726CHN2014A IN2014CN02726A IN 2014CN02726 A IN2014CN02726 A IN 2014CN02726A IN 2726CHN2014 A IN2726CHN2014 A IN 2726CHN2014A IN 2014CN02726 A IN2014CN02726 A IN 2014CN02726A
- Authority
- IN
- India
- Prior art keywords
- methacrylic acid
- aqueous solution
- impurity
- solid impurity
- separation
- Prior art date
Links
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 abstract 6
- 239000012535 impurity Substances 0.000 abstract 5
- 239000007864 aqueous solution Substances 0.000 abstract 4
- 239000007787 solid Substances 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 2
- 239000012452 mother liquor Substances 0.000 abstract 2
- 238000000926 separation method Methods 0.000 abstract 2
- 238000001556 precipitation Methods 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2011/079765 WO2013037132A1 (en) | 2011-09-16 | 2011-09-16 | Preparation of methacrylic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN2014CN02726A true IN2014CN02726A (enrdf_load_stackoverflow) | 2015-07-03 |
Family
ID=47882551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN2726CHN2014 IN2014CN02726A (enrdf_load_stackoverflow) | 2011-09-16 | 2011-09-16 |
Country Status (15)
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3023408A1 (de) * | 2014-11-19 | 2016-05-25 | Evonik Röhm GmbH | Optimiertes Verfahren zur Herstellung von Methacrylsäure |
| WO2018181226A1 (ja) | 2017-03-27 | 2018-10-04 | 三菱ケミカル株式会社 | 触媒及び触媒群 |
| RU2735682C1 (ru) | 2017-03-27 | 2020-11-05 | Мицубиси Кемикал Корпорейшн | Катализатор и катализаторная группа |
| EP3889127A1 (en) | 2020-04-03 | 2021-10-06 | Röhm GmbH | Improved safe method for tandem c-4 oxidation to methacrylic acid |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1316545C (en) * | 1987-06-27 | 1993-04-20 | Morimasa Kuragano | Quenching process of reaction product gas containing methacrylic acid and treatment method of quenched liquid |
| JPH0780809B2 (ja) * | 1987-08-05 | 1995-08-30 | 三井東圧化学株式会社 | メタクリル酸水溶液の処理方法 |
| JPH0780810B2 (ja) * | 1987-08-05 | 1995-08-30 | 三井東圧化学株式会社 | メタクリル酸水溶液の処理方法 |
| JPH0780811B2 (ja) * | 1987-08-05 | 1995-08-30 | 三井東圧化学株式会社 | メタクリル酸水溶液の処理方法 |
| JPH0764775B2 (ja) * | 1988-03-08 | 1995-07-12 | 三井東圧化学株式会社 | メタクロレインの吸収方法 |
| JPH05262691A (ja) * | 1992-03-19 | 1993-10-12 | Nippon Shokubai Co Ltd | フマル酸の製造方法 |
| JP3417085B2 (ja) * | 1994-09-16 | 2003-06-16 | 栗田工業株式会社 | 殺菌剤包接化合物の製造方法 |
| JP3279491B2 (ja) * | 1996-12-16 | 2002-04-30 | 株式会社日本触媒 | （メタ）アクリル酸の製造方法 |
| JP2002128728A (ja) * | 2000-10-19 | 2002-05-09 | Mitsubishi Rayon Co Ltd | メタクリル酸の精製方法 |
| DE10211686A1 (de) * | 2002-03-15 | 2003-10-02 | Stockhausen Chem Fab Gmbh | (Meth)Acrylsäurekristall und Verfahren zur Herstellung und Aufreinigung von wässriger (Meth)Acrylsäure |
| DE102004034316B4 (de) * | 2004-07-15 | 2015-07-16 | Evonik Degussa Gmbh | Ein Verfahren zur Herstellung von (Meth)Acrylsäure |
| EP2085376B1 (en) * | 2008-01-30 | 2012-09-05 | Evonik Röhm GmbH | Process for preparation of high purity methacrylic acid |
-
2011
- 2011-09-16 RU RU2014114865/04A patent/RU2014114865A/ru not_active Application Discontinuation
- 2011-09-16 US US14/240,547 patent/US20140187817A1/en not_active Abandoned
- 2011-09-16 CN CN201710587973.3A patent/CN107382705B/zh active Active
- 2011-09-16 EP EP11872304.8A patent/EP2755941A1/en not_active Withdrawn
- 2011-09-16 JP JP2014530067A patent/JP6153527B2/ja active Active
- 2011-09-16 CN CN201180073469.2A patent/CN103796983A/zh active Pending
- 2011-09-16 SG SG2014012652A patent/SG2014012652A/en unknown
- 2011-09-16 WO PCT/CN2011/079765 patent/WO2013037132A1/en active Application Filing
- 2011-09-16 KR KR1020147006576A patent/KR101877099B1/ko active Active
- 2011-09-16 IN IN2726CHN2014 patent/IN2014CN02726A/en unknown
- 2011-09-16 MX MX2014002527A patent/MX2014002527A/es unknown
- 2011-09-16 AU AU2011376834A patent/AU2011376834A1/en not_active Abandoned
- 2011-09-16 BR BR112014006346A patent/BR112014006346A2/pt not_active IP Right Cessation
-
2012
- 2012-09-12 TW TW101133299A patent/TW201323400A/zh unknown
- 2012-09-15 SA SA112330848A patent/SA112330848B1/ar unknown
-
2014
- 2014-03-03 ZA ZA2014/01599A patent/ZA201401599B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| SA112330848B1 (ar) | 2015-10-12 |
| WO2013037132A1 (en) | 2013-03-21 |
| CN107382705B (zh) | 2021-08-10 |
| RU2014114865A (ru) | 2015-10-27 |
| TW201323400A (zh) | 2013-06-16 |
| EP2755941A1 (en) | 2014-07-23 |
| AU2011376834A1 (en) | 2014-02-13 |
| KR101877099B1 (ko) | 2018-08-09 |
| BR112014006346A2 (pt) | 2017-04-04 |
| MX2014002527A (es) | 2014-05-28 |
| JP6153527B2 (ja) | 2017-06-28 |
| KR20140060526A (ko) | 2014-05-20 |
| SG2014012652A (en) | 2014-08-28 |
| US20140187817A1 (en) | 2014-07-03 |
| JP2014532039A (ja) | 2014-12-04 |
| CN107382705A (zh) | 2017-11-24 |
| CN103796983A (zh) | 2014-05-14 |
| ZA201401599B (en) | 2015-08-26 |
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