FR2020172A1 - - Google Patents

Info

Publication number
FR2020172A1
FR2020172A1 FR6934471A FR6934471A FR2020172A1 FR 2020172 A1 FR2020172 A1 FR 2020172A1 FR 6934471 A FR6934471 A FR 6934471A FR 6934471 A FR6934471 A FR 6934471A FR 2020172 A1 FR2020172 A1 FR 2020172A1
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.)
Withdrawn
Application number
FR6934471A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Asahi Kasei Corp
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry Co Ltd
Asahi Kasei Kogyo KK
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 Asahi Chemical Industry Co Ltd, Asahi Kasei Kogyo KK filed Critical Asahi Chemical Industry Co Ltd
Publication of FR2020172A1 publication Critical patent/FR2020172A1/fr
Withdrawn legal-status Critical Current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
    • C07C51/42—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
    • C07C51/46—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation by azeotropic distillation
    • 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
FR6934471A 1968-10-08 1969-10-08 Withdrawn FR2020172A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP7282568 1968-10-08
JP8172968 1968-11-09
JP8287668 1968-11-14

Publications (1)

Publication Number Publication Date
FR2020172A1 true FR2020172A1 (fr) 1970-07-10

Family

ID=27301049

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6934471A Withdrawn FR2020172A1 (fr) 1968-10-08 1969-10-08

Country Status (4)

Country Link
US (1) US3666632A (fr)
DE (1) DE1950750C3 (fr)
FR (1) FR2020172A1 (fr)
GB (1) GB1290725A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2554809A1 (fr) * 1983-08-11 1985-05-17 Nippon Catalytic Chem Ind Procede de preparation de l'acide acrylique

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL180579C (nl) * 1972-05-24 1987-03-16 Sumitomo Chemical Co Werkwijze voor het scheiden van een mengsel bestaande uit acrylzuur, azijnzuur en water.
DE2241714A1 (de) * 1972-08-24 1974-03-28 Basf Ag Verfahren zur abtrennung von acrylsaeure aus den reaktionsgasen der propylenoder acroleinoxydation
US4076950A (en) * 1976-07-19 1978-02-28 Rohm And Haas Company Process for manufacture of alkyl esters of aliphatic carboxylic acids
US4554054A (en) * 1983-12-09 1985-11-19 Rohm And Haas Company Methacrylic acid separation
US5659073A (en) * 1995-07-07 1997-08-19 Qi; Jian Steven Process for making glycol ether acetates
JP3028925B2 (ja) * 1995-12-05 2000-04-04 株式会社日本触媒 アクリル酸の製造方法
US6084127A (en) * 1997-02-28 2000-07-04 Nippon Shokubai Co Ltd Method for recovering acrylic acid
DE19814449A1 (de) 1998-03-31 1999-10-07 Basf Ag Verfahren zur Herstellung von (Meth)acrylsäure und (Meth)acrylsäureestern
JP2002001005A (ja) * 2000-06-22 2002-01-08 Mitsubishi Chemicals Corp 共沸蒸留方法
US20030121768A1 (en) * 2001-12-13 2003-07-03 Salvador Aldrett Lee Alternate extraction solvent for acrylic acid purification process
US20030150705A1 (en) * 2002-01-08 2003-08-14 Deshpande Sanjeev D. Acrylic acid recovery utilizing ethyl acrylate and selected co-solvents
KR20160009598A (ko) * 2013-05-20 2016-01-26 사우디 베이식 인더스트리즈 코포레이션 아세트산 및 아크릴산의 정제 방법
DE102016211734A1 (de) 2016-06-29 2017-01-12 Basf Se Verfahren zur Aufreinigung von Acrylsäurederivaten

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1839894A (en) * 1927-09-10 1932-01-05 Us Ind Alcohol Co Continuous process for the manufacture of acetic acid in the anhydrous state from its aqueous solutions
FR794778A (fr) * 1934-09-15 1936-02-25 Kodak Pathe Procédé et appareil de déshydratation des acides aliphatiques et agents entraîneures pour ce procédé
US2171549A (en) * 1935-06-12 1939-09-05 Eastman Kodak Co Process for azeotropic distillation of aliphatic acids
FR1150930A (fr) * 1956-05-18 1958-01-22 Kodak Pathe Procédé de concentration des acides éthyléniques polymérisables
BE643942A (fr) * 1963-03-21 1964-06-15
FR1393174A (fr) * 1963-05-16 1965-03-19 Distillers Co Yeast Ltd Procédé de concentration de solutions aqueuses d'acide acrylique
FR1400888A (fr) * 1963-07-13 1965-05-28 Basf Ag Traitement de mélanges renfermant de l'acide acétique
US3433831A (en) * 1965-06-30 1969-03-18 Asahi Chemical Ind Separation and purification of acrylic acid from acetic acid by solvent extraction and azeotropic distillation with a two component solvent-entrainer system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1839894A (en) * 1927-09-10 1932-01-05 Us Ind Alcohol Co Continuous process for the manufacture of acetic acid in the anhydrous state from its aqueous solutions
FR794778A (fr) * 1934-09-15 1936-02-25 Kodak Pathe Procédé et appareil de déshydratation des acides aliphatiques et agents entraîneures pour ce procédé
US2171549A (en) * 1935-06-12 1939-09-05 Eastman Kodak Co Process for azeotropic distillation of aliphatic acids
FR1150930A (fr) * 1956-05-18 1958-01-22 Kodak Pathe Procédé de concentration des acides éthyléniques polymérisables
BE643942A (fr) * 1963-03-21 1964-06-15
FR1393174A (fr) * 1963-05-16 1965-03-19 Distillers Co Yeast Ltd Procédé de concentration de solutions aqueuses d'acide acrylique
FR1400888A (fr) * 1963-07-13 1965-05-28 Basf Ag Traitement de mélanges renfermant de l'acide acétique
US3433831A (en) * 1965-06-30 1969-03-18 Asahi Chemical Ind Separation and purification of acrylic acid from acetic acid by solvent extraction and azeotropic distillation with a two component solvent-entrainer system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2554809A1 (fr) * 1983-08-11 1985-05-17 Nippon Catalytic Chem Ind Procede de preparation de l'acide acrylique

Also Published As

Publication number Publication date
DE1950750B2 (de) 1979-09-13
DE1950750C3 (de) 1980-06-04
US3666632A (en) 1972-05-30
GB1290725A (fr) 1972-09-27
DE1950750A1 (de) 1970-07-02

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Legal Events

Date Code Title Description
ST Notification of lapse