SG11201509484TA - Method for dehydrating alpha-substituted carboxylic acids - Google Patents

Method for dehydrating alpha-substituted carboxylic acids

Info

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
Application number
SG11201509484TA
Inventor
Alexander May
Steffen Krill
Jörg Becker
Willi Plösser
Marcel Treskow
Martin Köstner
Original Assignee
Evonik Roehm Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Evonik Roehm Gmbh filed Critical Evonik Roehm Gmbh
Publication of SG11201509484TA publication Critical patent/SG11201509484TA/en

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
SG11201509484TA 2013-05-27 2014-04-28 Method for dehydrating alpha-substituted carboxylic acids SG11201509484TA (en)

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)

* Cited by examiner, † Cited by third party
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
BR112017004644A2 (en) 2014-09-10 2018-06-05 Evonik Roehm Gmbh A method for preparing alpha hydroxy carboxylic acid esters in which ammonia is recycled

Family Cites Families (11)

* Cited by examiner, † Cited by third party
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
JP5678663B2 (en) * 2008-12-17 2015-03-04 国立大学法人九州工業大学 Method for producing 2-hydroxyisobutyric acid polymer and depolymerization method
FR2953829B1 (en) * 2009-12-14 2011-12-09 Arkema France PROCESS FOR PRODUCING ACROLEIN AND / OR ACRYLIC ACID FROM GLYCEROL

Also Published As

Publication number Publication date
JP2016520103A (en) 2016-07-11
RU2015153501A (en) 2017-06-29
KR20160012143A (en) 2016-02-02
DE102013209821A1 (en) 2014-11-27
EP3004044A1 (en) 2016-04-13
EP3004044B1 (en) 2017-04-19
TW201509898A (en) 2015-03-16
US20160090344A1 (en) 2016-03-31
CN105849077A (en) 2016-08-10
WO2014191145A1 (en) 2014-12-04
US9428437B2 (en) 2016-08-30
BR112015029745A2 (en) 2017-07-25

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