BE760832A - Procede de separation de l'acide acrylique d'un acide acryliquebrut aqueux - Google Patents

Procede de separation de l'acide acrylique d'un acide acryliquebrut aqueux

Info

Publication number
BE760832A
BE760832A BE760832A BE760832A BE760832A BE 760832 A BE760832 A BE 760832A BE 760832 A BE760832 A BE 760832A BE 760832 A BE760832 A BE 760832A BE 760832 A BE760832 A BE 760832A
Authority
BE
Belgium
Prior art keywords
acrylic acid
separating
raw aqueous
aqueous acrylic
raw
Prior art date
Application number
BE760832A
Other languages
English (en)
Original Assignee
Knapsack Ag
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 Knapsack Ag filed Critical Knapsack Ag
Publication of BE760832A publication Critical patent/BE760832A/fr

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
    • C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment

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)
  • Extraction Or Liquid Replacement (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
BE760832A 1969-12-27 1970-12-24 Procede de separation de l'acide acrylique d'un acide acryliquebrut aqueux BE760832A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691965014 DE1965014A1 (de) 1969-12-27 1969-12-27 Verfahren zur Abtrennung von Acrylsaeure aus waessriger Rohacrylsaeure

Publications (1)

Publication Number Publication Date
BE760832A true BE760832A (fr) 1971-06-24

Family

ID=5755045

Family Applications (1)

Application Number Title Priority Date Filing Date
BE760832A BE760832A (fr) 1969-12-27 1970-12-24 Procede de separation de l'acide acrylique d'un acide acryliquebrut aqueux

Country Status (7)

Country Link
US (1) US3692829A (fr)
JP (1) JPS4932843B1 (fr)
BE (1) BE760832A (fr)
DE (1) DE1965014A1 (fr)
FR (1) FR2074268A5 (fr)
GB (1) GB1278180A (fr)
NL (1) NL7018807A (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5534784B2 (fr) * 1972-05-23 1980-09-09
NL180579C (nl) * 1972-05-24 1987-03-16 Sumitomo Chemical Co Werkwijze voor het scheiden van een mengsel bestaande uit acrylzuur, azijnzuur en water.
US3931001A (en) * 1974-06-14 1976-01-06 The Dow Chemical Company Pentachlorophenol recovery with methylene chloride
JPS53141142U (fr) * 1977-04-09 1978-11-08
US4253948A (en) * 1979-05-14 1981-03-03 Standard Oil Company Dehydration of water soluble monomers with liquid carbon dioxide
DE3002626C2 (de) * 1980-01-25 1982-09-09 Danfoss A/S, 6430 Nordborg Dichtungsvorrichtung zum Abdichten zweier Räume unterschiedlichen Druckes
US4353784A (en) * 1981-09-21 1982-10-12 Daicel Chemical Industries, Ltd. Method of recovery of acetic acid
DE3344734A1 (de) * 1983-12-10 1985-06-20 Kaco Gmbh + Co, 7100 Heilbronn Dichtelement fuer flachdichtungen
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
JP5504668B2 (ja) * 2008-03-31 2014-05-28 三菱化学株式会社 （メタ）アクリル酸の製造方法
ES2400329T3 (es) * 2008-11-28 2013-04-09 Basf Se Procedimiento para la eliminación de subproductos de N-vinilamidas
US20130165695A1 (en) * 2011-12-22 2013-06-27 Celanese International Corporation Process conditions for producing acrylic acid
CN105753688B (zh) * 2016-03-29 2018-01-05 黄河三角洲京博化工研究院有限公司 一种降低丙烯酸中丙烯酸二聚体的方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2526508A (en) * 1948-08-19 1950-10-17 Standard Oil Dev Co Recovery of fatty acids from dilute aqueous solutions
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
GB997324A (en) * 1963-06-20 1965-07-07 Distillers Co Yeast Ltd Improvements in or relating to the production of acrylic acid
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
DE1618612B2 (de) * 1967-06-29 1973-03-15 Knapsack AG, 5033 Hurth Knapsack Verfahren zur gewinnung reiner acrylsaeure aus waessriger rohsaeure

Also Published As

Publication number Publication date
JPS4932843B1 (fr) 1974-09-03
FR2074268A5 (fr) 1971-10-01
DE1965014A1 (de) 1971-07-01
US3692829A (en) 1972-09-19
GB1278180A (en) 1972-06-14
NL7018807A (fr) 1971-06-29

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