BE778714A - Procede de separation de l'acide acrylique a partir d'un acide acrylique brut aqueux - Google Patents

Procede de separation de l'acide acrylique a partir d'un acide acrylique brut aqueux

Info

Publication number
BE778714A
BE778714A BE778714A BE778714A BE778714A BE 778714 A BE778714 A BE 778714A BE 778714 A BE778714 A BE 778714A BE 778714 A BE778714 A BE 778714A BE 778714 A BE778714 A BE 778714A
Authority
BE
Belgium
Prior art keywords
acrylic acid
separation
crude aqueous
aqueous acrylic
crude
Prior art date
Application number
BE778714A
Other languages
English (en)
French (fr)
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 BE778714A publication Critical patent/BE778714A/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

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)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
BE778714A 1971-02-01 1972-01-31 Procede de separation de l'acide acrylique a partir d'un acide acrylique brut aqueux BE778714A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2104506A DE2104506C3 (de) 1971-02-01 1971-02-01 Verfahren zur Abtrennung von Acrylsäure und Essigsäure aus wäßriger Rohacrylsäure

Publications (1)

Publication Number Publication Date
BE778714A true BE778714A (fr) 1972-07-31

Family

ID=5797463

Family Applications (1)

Application Number Title Priority Date Filing Date
BE778714A BE778714A (fr) 1971-02-01 1972-01-31 Procede de separation de l'acide acrylique a partir d'un acide acrylique brut aqueux

Country Status (12)

Country Link
US (1) US3781193A (xx)
JP (1) JPS5025451B2 (xx)
BE (1) BE778714A (xx)
DD (1) DD96479A5 (xx)
DE (1) DE2104506C3 (xx)
ES (1) ES399037A1 (xx)
FR (1) FR2124364B1 (xx)
GB (1) GB1328942A (xx)
IT (1) IT949695B (xx)
NL (1) NL7200996A (xx)
RO (1) RO64362A (xx)
SU (1) SU422135A3 (xx)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50111783A (xx) * 1974-02-09 1975-09-02
US3960671A (en) * 1974-06-17 1976-06-01 Rohm And Haas Company Quinones as corrosion inhibitor in distilling alkanoic acids
JPS5142760U (xx) * 1974-09-21 1976-03-30
JPS5149893A (ja) * 1974-10-24 1976-04-30 Laurel Bank Machine Co Entojobutsupinnohakozumesochi
JPS5149897A (en) * 1974-10-24 1976-04-30 Laurel Bank Machine Co Entojobutsuno jidokonhosochi
JPS5227459U (xx) * 1975-08-18 1977-02-25
JPS5219913A (en) * 1976-06-23 1977-02-15 Tsurumai Denki Kk Wire television amplifier
JPS6054939B2 (ja) * 1977-08-04 1985-12-03 住友化学工業株式会社 粗製アクリル酸の精製方法
US4253948A (en) * 1979-05-14 1981-03-03 Standard Oil Company Dehydration of water soluble monomers with liquid carbon dioxide
GB2146636B (en) * 1983-08-11 1987-02-04 Nippon Catalytic Chem Ind Process for producing acrylic acid
JPS6243271A (ja) * 1985-08-21 1987-02-25 Nec Corp プラグイン方式残留等化ｃａｔｖ中継増幅器
JP3937462B2 (ja) * 1994-08-04 2007-06-27 三菱化学株式会社 アクリル酸精製法
TW524796B (en) * 1997-11-17 2003-03-21 Sumitomo Chemical Co Method for producing acrylic acid
JP2007191435A (ja) * 2006-01-19 2007-08-02 Nippon Shokubai Co Ltd （メタ）アクリル酸の製造方法
CN102070434B (zh) * 2010-12-31 2013-07-17 河南省华鼎高分子合成树脂有限公司 马来酰亚胺类化合物生产过程中产出废液的处理方法
GB201621975D0 (en) * 2016-12-22 2017-02-08 Johnson Matthey Davy Technologies Ltd Process
GB201621985D0 (en) 2016-12-22 2017-02-08 Johnson Matthey Davy Technologies Ltd Process
FR3089222A1 (fr) * 2018-11-29 2020-06-05 Arkema France Purification de solutions aqueuses contenant du formaldehyde, et utilisation de la solution purifiee dans un procede de production d’acide acrylique

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2005163A1 (de) * 1970-02-05 1971-08-19 Knapsack Ag, 5033 Knapsack Verfahren zur Abtrennung von Acrylsäure aus wäßriger Rohacrylsaure

Also Published As

Publication number Publication date
DD96479A5 (xx) 1973-03-20
JPS5025451B2 (xx) 1975-08-23
FR2124364B1 (xx) 1977-04-01
JPS4839427A (xx) 1973-06-09
ES399037A1 (es) 1974-12-01
SU422135A3 (xx) 1974-03-30
DE2104506B2 (xx) 1973-12-06
NL7200996A (xx) 1972-08-03
DE2104506A1 (de) 1972-08-10
GB1328942A (en) 1973-09-05
FR2124364A1 (xx) 1972-09-22
IT949695B (it) 1973-06-11
US3781193A (en) 1973-12-25
RO64362A (fr) 1979-05-15
DE2104506C3 (de) 1974-07-18

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