BE643942A - - Google Patents

Info

Publication number
BE643942A
BE643942A BE643942DA BE643942A BE 643942 A BE643942 A BE 643942A BE 643942D A BE643942D A BE 643942DA BE 643942 A BE643942 A BE 643942A
Authority
BE
Belgium
Application number
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
Publication of BE643942A publication Critical patent/BE643942A/xx

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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BE643942D 1963-03-21 1964-02-18 BE643942A (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR928802A FR1359885A (fr) 1963-03-21 1963-03-21 Procédé de fabrication d'acide acrylique glacial

Publications (1)

Publication Number Publication Date
BE643942A true BE643942A (no) 1964-06-15

Family

ID=8799784

Family Applications (1)

Application Number Title Priority Date Filing Date
BE643942D BE643942A (no) 1963-03-21 1964-02-18

Country Status (9)

Country Link
US (1) US3432401A (no)
JP (1) JPS4827292B1 (no)
BE (1) BE643942A (no)
DE (1) DE1468956A1 (no)
ES (1) ES296656A1 (no)
FR (1) FR1359885A (no)
GB (1) GB1055532A (no)
LU (1) LU45409A1 (no)
NL (1) NL6401921A (no)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2020172A1 (no) * 1968-10-08 1970-07-10 Asahi Chemical Ind

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3493471A (en) * 1967-12-01 1970-02-03 Dow Chemical Co Acrylic acid purification
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
BE786398A (fr) * 1971-07-21 1973-01-18 Basf Ag Procede de preparation de l'acide acrylique anhydre
DE2241714A1 (de) * 1972-08-24 1974-03-28 Basf Ag Verfahren zur abtrennung von acrylsaeure aus den reaktionsgasen der propylenoder acroleinoxydation
US4021310A (en) * 1972-12-22 1977-05-03 Nippon Shokubai Kagaku Kogyo Co., Ltd. Method for inhibiting the polymerization of acrylic acid or its esters
FR2394512A1 (fr) * 1977-06-14 1979-01-12 Rhone Poulenc Ind Procede de separation d'acide acrylique a partir de ses solutions dans le phosphate de tri-n-butyle
US4820385A (en) * 1988-02-18 1989-04-11 Monsanto Company Purification of alkyl glyoxylate in a continuous column by azeotropic distillation
US6084127A (en) * 1997-02-28 2000-07-04 Nippon Shokubai Co Ltd Method for recovering acrylic acid
US6982026B2 (en) * 2001-03-15 2006-01-03 Tate & Lyle Ingredients Americas, Inc. Azeotropic distillation process for producing organic acids or organic acid amides
US6984293B2 (en) * 2001-03-15 2006-01-10 Tate & Lyle Ingredients Azeotropic distillation of cyclic esters of hydroxy organic acids
US6926810B2 (en) * 2001-03-15 2005-08-09 A. E. Staley Manufacturing Co. Process for obtaining an organic acid from an organic acid ammonium salt, an organic acid amide, or an alkylamine organic acid complex
US20030150705A1 (en) * 2002-01-08 2003-08-14 Deshpande Sanjeev D. Acrylic acid recovery utilizing ethyl acrylate and selected co-solvents
TWI254648B (en) * 2002-05-01 2006-05-11 Rohm & Haas Process for manufacturing high purity methacrylic acid
US11866631B2 (en) 2019-04-29 2024-01-09 Ecolab Usa Inc. Oxygenated aminophenol compounds and methods for preventing monomer polymerization

Family Cites Families (5)

* 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
US2033978A (en) * 1932-04-01 1936-03-17 Dreyfus Henry Concentration of lower aliphatic acids
FR1169740A (fr) * 1956-03-22 1959-01-05 Solvay Werke Gmbh Procédé de concentration d'acide acrylique aqueux
US3337740A (en) * 1962-02-13 1967-08-22 Deering Milliken Res Corp Process for separating acrylic acid from impurities

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2020172A1 (no) * 1968-10-08 1970-07-10 Asahi Chemical Ind

Also Published As

Publication number Publication date
ES296656A1 (es) 1964-05-01
JPS4827292B1 (no) 1973-08-21
US3432401A (en) 1969-03-11
DE1468956A1 (de) 1969-01-02
LU45409A1 (no) 1964-04-13
FR1359885A (fr) 1964-04-30
GB1055532A (en) 1967-01-18
NL6401921A (no) 1964-09-22

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