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

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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 (enrdf_load_html_response)

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 (enrdf_load_html_response) 1964-06-15

Family

ID=8799784

Family Applications (1)

Application Number Title Priority Date Filing Date
BE643942D BE643942A (enrdf_load_html_response) 1963-03-21 1964-02-18

Country Status (9)

Country Link
US (1) US3432401A (enrdf_load_html_response)
JP (1) JPS4827292B1 (enrdf_load_html_response)
BE (1) BE643942A (enrdf_load_html_response)
DE (1) DE1468956A1 (enrdf_load_html_response)
ES (1) ES296656A1 (enrdf_load_html_response)
FR (1) FR1359885A (enrdf_load_html_response)
GB (1) GB1055532A (enrdf_load_html_response)
LU (1) LU45409A1 (enrdf_load_html_response)
NL (1) NL6401921A (enrdf_load_html_response)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2020172A1 (enrdf_load_html_response) * 1968-10-08 1970-07-10 Asahi Chemical Ind

Families Citing this family (15)

* 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
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
US6984293B2 (en) * 2001-03-15 2006-01-10 Tate & Lyle Ingredients Azeotropic distillation of cyclic esters of hydroxy organic acids
US6982026B2 (en) * 2001-03-15 2006-01-03 Tate & Lyle Ingredients Americas, Inc. Azeotropic distillation process for producing organic acids or organic acid amides
US20030150705A1 (en) * 2002-01-08 2003-08-14 Deshpande Sanjeev D. Acrylic acid recovery utilizing ethyl acrylate and selected co-solvents
US7128813B2 (en) * 2002-05-01 2006-10-31 Rohm And Haas Company 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
AU2020265570A1 (en) 2019-04-29 2021-11-25 Ecolab Usa Inc. Oxygenated aromatic amines and use as antioxidants

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 (enrdf_load_html_response) * 1968-10-08 1970-07-10 Asahi Chemical Ind

Also Published As

Publication number Publication date
US3432401A (en) 1969-03-11
ES296656A1 (es) 1964-05-01
JPS4827292B1 (enrdf_load_html_response) 1973-08-21
DE1468956A1 (de) 1969-01-02
LU45409A1 (enrdf_load_html_response) 1964-04-13
NL6401921A (enrdf_load_html_response) 1964-09-22
GB1055532A (en) 1967-01-18
FR1359885A (fr) 1964-04-30

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