FR1569929A - - Google Patents

Info

Publication number
FR1569929A
FR1569929A FR1569929DA FR1569929A FR 1569929 A FR1569929 A FR 1569929A FR 1569929D A FR1569929D A FR 1569929DA FR 1569929 A FR1569929 A FR 1569929A
Authority
FR
France
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
French (fr)
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 filed Critical
Application granted granted Critical
Publication of FR1569929A publication Critical patent/FR1569929A/fr
Expired legal-status Critical Current

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)
FR1569929D 1967-05-17 1968-04-17 Expired FR1569929A (en:Method)

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
FR1569929A true FR1569929A (en:Method) 1969-06-06

Family

ID=24563277

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1569929D Expired FR1569929A (en:Method) 1967-05-17 1968-04-17

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
US3414485A (en) 1968-12-03
NL6805008A (en:Method) 1968-11-18
GB1209498A (en) 1970-10-21
DE1768280A1 (de) 1971-10-28
BE713901A (en:Method) 1968-10-21

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Legal Events

Date Code Title Description
CD Change of name or company name
TP Transmission of property
ST Notification of lapse