SG11201509484TA - Method for dehydrating alpha-substituted carboxylic acids - Google Patents
Method for dehydrating alpha-substituted carboxylic acidsInfo
- Publication number
- SG11201509484TA SG11201509484TA SG11201509484TA SG11201509484TA SG11201509484TA SG 11201509484T A SG11201509484T A SG 11201509484TA SG 11201509484T A SG11201509484T A SG 11201509484TA SG 11201509484T A SG11201509484T A SG 11201509484TA SG 11201509484T A SG11201509484T A SG 11201509484TA
- Authority
- SG
- Singapore
- Prior art keywords
- carboxylic acids
- substituted carboxylic
- dehydrating
- alpha
- dehydrating alpha
- Prior art date
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
- C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
- C07C51/377—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by splitting-off hydrogen or functional groups; by hydrogenolysis of functional groups
-
- 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
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
- C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
-
- 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
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013209821.9A DE102013209821A1 (en) | 2013-05-27 | 2013-05-27 | Process for the dehydration of alpha-substituted carboxylic acids |
PCT/EP2014/058578 WO2014191145A1 (en) | 2013-05-27 | 2014-04-28 | Method for dehydrating alpha-substituted carboxylic acids |
Publications (1)
Publication Number | Publication Date |
---|---|
SG11201509484TA true SG11201509484TA (en) | 2015-12-30 |
Family
ID=50639483
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG11201509484TA SG11201509484TA (en) | 2013-05-27 | 2014-04-28 | Method for dehydrating alpha-substituted carboxylic acids |
Country Status (11)
Country | Link |
---|---|
US (1) | US9428437B2 (en) |
EP (1) | EP3004044B1 (en) |
JP (1) | JP2016520103A (en) |
KR (1) | KR20160012143A (en) |
CN (1) | CN105849077A (en) |
BR (1) | BR112015029745A2 (en) |
DE (1) | DE102013209821A1 (en) |
RU (1) | RU2015153501A (en) |
SG (1) | SG11201509484TA (en) |
TW (1) | TW201509898A (en) |
WO (1) | WO2014191145A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014204621A1 (en) | 2014-03-13 | 2015-09-17 | Evonik Industries Ag | Process for the rectification of hydroxycarboxylic acid mixtures |
DE102014209650A1 (en) | 2014-05-21 | 2015-11-26 | Evonik Industries Ag | Process for carrying out elimination reactions on alpha-beta-substituted carboxylic acids under homogeneous catalysis and catalyst recycle |
JP2017526717A (en) | 2014-09-10 | 2017-09-14 | エボニック レーム ゲゼルシャフト ミット ベシュレンクテル ハフツングEvonik Roehm GmbH | Method for producing α-hydroxycarboxylic acid ester by recycling ammonia |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1211153B (en) | 1957-10-29 | 1966-02-24 | Escambia Chem Corp | Process for the preparation of methacrylic acid and / or their esters by reacting the steams of alpha-oxyisobutyric acid or their esters |
DE1191367B (en) | 1960-03-16 | 1965-04-22 | Kalk Chemische Fabrik Gmbh | Process for the production of alpha, beta-unsaturated carboxylic acids from alpha-oxycarboxylic acids |
CH430691A (en) | 1963-09-17 | 1967-02-28 | Lonza Ag | Process for the preparation of methacrylic compounds |
US3562320A (en) | 1967-04-25 | 1971-02-09 | Escambia Chem Corp | Process for producing methacrylic acid |
US3414485A (en) * | 1967-05-17 | 1968-12-03 | Escambia Chem Corp | Process for drying methacrylic acid by extraction and azeotropic distillation |
JPS57149239A (en) * | 1981-03-13 | 1982-09-14 | Mitsubishi Gas Chem Co Inc | Preparation of methacrylic acid |
JP2959121B2 (en) | 1990-11-28 | 1999-10-06 | 三菱瓦斯化学株式会社 | Method for producing methacrylic acid |
CN100584822C (en) * | 2004-04-02 | 2010-01-27 | 西巴特殊化学水处理有限公司 | Preparation of acrylic acid derivatives from alpha or beta-hydroxy carboxylic acids |
DE102005023975A1 (en) | 2005-05-20 | 2006-11-23 | Röhm Gmbh | Process for the preparation of alkyl (meth) acrylates |
WO2010071019A1 (en) * | 2008-12-17 | 2010-06-24 | 国立大学法人九州工業大学 | Method for producing 2-hydroxyisobutyric acid polymer and method for depolymerizing same |
FR2953829B1 (en) * | 2009-12-14 | 2011-12-09 | Arkema France | PROCESS FOR PRODUCING ACROLEIN AND / OR ACRYLIC ACID FROM GLYCEROL |
-
2013
- 2013-05-27 DE DE102013209821.9A patent/DE102013209821A1/en not_active Withdrawn
-
2014
- 2014-04-28 EP EP14721306.0A patent/EP3004044B1/en not_active Not-in-force
- 2014-04-28 BR BR112015029745A patent/BR112015029745A2/en not_active IP Right Cessation
- 2014-04-28 RU RU2015153501A patent/RU2015153501A/en not_active Application Discontinuation
- 2014-04-28 SG SG11201509484TA patent/SG11201509484TA/en unknown
- 2014-04-28 KR KR1020157033543A patent/KR20160012143A/en not_active Application Discontinuation
- 2014-04-28 WO PCT/EP2014/058578 patent/WO2014191145A1/en active Application Filing
- 2014-04-28 US US14/891,861 patent/US9428437B2/en not_active Expired - Fee Related
- 2014-04-28 CN CN201480030973.8A patent/CN105849077A/en active Pending
- 2014-04-28 JP JP2016515687A patent/JP2016520103A/en active Pending
- 2014-05-23 TW TW103118095A patent/TW201509898A/en unknown
Also Published As
Publication number | Publication date |
---|---|
US9428437B2 (en) | 2016-08-30 |
CN105849077A (en) | 2016-08-10 |
US20160090344A1 (en) | 2016-03-31 |
EP3004044B1 (en) | 2017-04-19 |
JP2016520103A (en) | 2016-07-11 |
WO2014191145A1 (en) | 2014-12-04 |
TW201509898A (en) | 2015-03-16 |
EP3004044A1 (en) | 2016-04-13 |
DE102013209821A1 (en) | 2014-11-27 |
RU2015153501A (en) | 2017-06-29 |
KR20160012143A (en) | 2016-02-02 |
BR112015029745A2 (en) | 2017-07-25 |
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