ES470776A1 - Procedimiento para la separacion de acido acrilico a partir de sus soluciones en fosfato de tri-n-butilo - Google Patents

Procedimiento para la separacion de acido acrilico a partir de sus soluciones en fosfato de tri-n-butilo

Info

Publication number
ES470776A1
ES470776A1 ES470776A ES470776A ES470776A1 ES 470776 A1 ES470776 A1 ES 470776A1 ES 470776 A ES470776 A ES 470776A ES 470776 A ES470776 A ES 470776A ES 470776 A1 ES470776 A1 ES 470776A1
Authority
ES
Spain
Prior art keywords
acrylic acid
tri
solutions
butyl phosphate
obtaining acrylic
Prior art date
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
ES470776A
Other languages
English (en)
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.)
Rhone Poulenc Industries SA
Original Assignee
Rhone Poulenc Industries SA
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 Rhone Poulenc Industries SA filed Critical Rhone Poulenc Industries SA
Publication of ES470776A1 publication Critical patent/ES470776A1/es
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
    • C07C51/42—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

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)

Abstract

Procedimiento para la separación de ácido acrílico a partir de sus soluciones en fosfato de trin-n-butilo, caracterizado porque: a) se constituye una fase vapor que comprende sensiblemente todo el ácido acrílico y una parte del fosfato de tri-n-butilo por calentamiento de la solución de partida en condiciones que eviten la degradación del fosfato de tri-n-butilo, b) a continuación, tras condensación parcial o total de la fase vapor se efectúa, a partir de esta fase, una destilación de ácido acrílico, manteniendo en el pié de la columna un contenido en ácido acrílico tal que se puedan aplicar condiciones operatorias que eviten la degradación del fosfato de tri-n-butilo y la cristalización del ácido acrílico en la cabeza de la columna.
ES470776A 1977-06-14 1978-06-14 Procedimiento para la separacion de acido acrilico a partir de sus soluciones en fosfato de tri-n-butilo Expired ES470776A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7718136A FR2394512A1 (fr) 1977-06-14 1977-06-14 Procede de separation d'acide acrylique a partir de ses solutions dans le phosphate de tri-n-butyle

Publications (1)

Publication Number Publication Date
ES470776A1 true ES470776A1 (es) 1979-02-01

Family

ID=9192057

Family Applications (1)

Application Number Title Priority Date Filing Date
ES470776A Expired ES470776A1 (es) 1977-06-14 1978-06-14 Procedimiento para la separacion de acido acrilico a partir de sus soluciones en fosfato de tri-n-butilo

Country Status (10)

Country Link
US (1) US4219389A (es)
EP (1) EP0000110B1 (es)
JP (1) JPS5416421A (es)
BR (1) BR7803779A (es)
CA (1) CA1103196A (es)
DE (1) DE2862438D1 (es)
ES (1) ES470776A1 (es)
FR (1) FR2394512A1 (es)
IT (1) IT1105727B (es)
SU (1) SU963461A3 (es)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6098794A (ja) * 1983-11-04 1985-06-01 Matsushita Electric Ind Co Ltd 圧電型電気音響変換器
JPS61159900A (ja) * 1985-01-08 1986-07-19 Kimio Takahashi 圧電スピ−カ
JPS61159899A (ja) * 1985-01-08 1986-07-19 Kimio Takahashi 圧電スピ−カ
JPS61161100A (ja) * 1985-01-09 1986-07-21 Kimio Takahashi 圧電スピ−カ
DE3629093A1 (de) * 1986-08-27 1988-03-10 Stettner & Co Piezokeramischer schallwandler
JPH01176200A (ja) * 1987-12-29 1989-07-12 Nec Corp 圧電振動板
JPH04105795U (ja) * 1991-02-23 1992-09-11 太陽誘電株式会社 圧電音響装置
FR2735989B1 (fr) * 1995-06-29 1997-08-14 Rhone Poulenc Nutrition Animal Procede et installation de purification d'un flux gazeux contenant de l'acroleine
DE19740252A1 (de) * 1997-09-12 1999-03-18 Basf Ag Verfahren zur Herstellung von Acrylsäure und Methacrylsäure
DE19833049A1 (de) * 1998-07-22 2000-01-27 Basf Ag Verfahren zur Herstellung von Acrylsäure
DE19838783A1 (de) * 1998-08-26 2000-03-02 Basf Ag Verfahren zur kontinuierlichen Gewinnung von (Meth)acrylsäure
NL1013682C2 (nl) * 1999-11-26 2001-05-30 Purac Biochem Bv Werkwijze en inrichting voor het zuiveren van een waterige oplossing van melkzuur.
US20030150705A1 (en) * 2002-01-08 2003-08-14 Deshpande Sanjeev D. Acrylic acid recovery utilizing ethyl acrylate and selected co-solvents
DE10220494A1 (de) * 2002-05-07 2003-11-20 Basf Ag Verfahren zur Herstellung einer wässrigen Alkaliacrylat-Lösung
DE10347664A1 (de) 2003-10-09 2004-12-02 Basf Ag Verfahren der rektifikativen Auftrennung einer Acrylsäure enthaltenden Flüssigkeit
TWI337996B (en) * 2003-10-09 2011-03-01 Basf Ag Rectificative separation of an acrylic acid-containing liquid
DE102010064250A1 (de) 2010-12-28 2012-06-28 Evonik Degussa Gmbh Verfahren zur Herstellung von Methylmercaptopropionaldehyd

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3092587A (en) * 1959-07-22 1963-06-04 Bergwerksgesellschaft Hibernia Process for the production of high percentage solutions of organic peroxides
FR1359885A (fr) * 1963-03-21 1964-04-30 Electrochimie Soc Procédé de fabrication d'acide acrylique glacial
US3555082A (en) * 1966-12-15 1971-01-12 Knapsack Ag Process for isolating acrylic acid from the reaction gases obtained by oxidation of propylene or acrolein
AT274743B (de) * 1967-09-28 1969-09-25 Krems Chemie Gmbh Verfahren und Vorrichtung zur kontinuierlichen Fraktionierung von Tallöl oder andern organischen Mehrstoffgemischen
US3697387A (en) * 1968-05-16 1972-10-10 Buss Ag Process and device for the purification of a mixture of organic substances of high molecular weight
NL180579C (nl) * 1972-05-24 1987-03-16 Sumitomo Chemical Co Werkwijze voor het scheiden van een mengsel bestaande uit acrylzuur, azijnzuur en water.
US4043873A (en) * 1973-06-15 1977-08-23 Societa' Italiana Resine S.I.R. S.P.A. Plural stage recovery of trioxane in a process having a molecular distillation step

Also Published As

Publication number Publication date
FR2394512B1 (es) 1980-01-18
IT1105727B (it) 1985-11-04
US4219389A (en) 1980-08-26
IT7849856A0 (it) 1978-06-13
EP0000110A1 (fr) 1978-12-20
BR7803779A (pt) 1979-02-20
EP0000110B1 (fr) 1984-08-29
DE2862438D1 (en) 1984-10-04
JPS5711896B2 (es) 1982-03-08
FR2394512A1 (fr) 1979-01-12
SU963461A3 (ru) 1982-09-30
JPS5416421A (en) 1979-02-07
CA1103196A (fr) 1981-06-16

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19960108