FR2124364B1 - - Google Patents

Info

Publication number
FR2124364B1
FR2124364B1 FR7203367A FR7203367A FR2124364B1 FR 2124364 B1 FR2124364 B1 FR 2124364B1 FR 7203367 A FR7203367 A FR 7203367A FR 7203367 A FR7203367 A FR 7203367A FR 2124364 B1 FR2124364 B1 FR 2124364B1
Authority
FR
France
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
FR7203367A
Other versions
FR2124364A1 (fr
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.)
Hoechst AG
Original Assignee
Hoechst 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 Hoechst AG filed Critical Hoechst AG
Publication of FR2124364A1 publication Critical patent/FR2124364A1/fr
Application granted granted Critical
Publication of FR2124364B1 publication Critical patent/FR2124364B1/fr
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
    • 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)
FR7203367A 1971-02-01 1972-02-01 Expired FR2124364B1 (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 (2)

Publication Number Publication Date
FR2124364A1 FR2124364A1 (fr) 1972-09-22
FR2124364B1 true FR2124364B1 (fr) 1977-04-01

Family

ID=5797463

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7203367A Expired FR2124364B1 (fr) 1971-02-01 1972-02-01

Country Status (12)

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

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50111783A (fr) * 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 (fr) * 1974-09-21 1976-03-30
JPS5149897A (en) * 1974-10-24 1976-04-30 Laurel Bank Machine Co Entojobutsuno jidokonhosochi
JPS5149893A (ja) * 1974-10-24 1976-04-30 Laurel Bank Machine Co Entojobutsupinnohakozumesochi
JPS5227459U (fr) * 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
GB201621985D0 (en) * 2016-12-22 2017-02-08 Johnson Matthey Davy Technologies Ltd Process
GB201621975D0 (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
RO64362A (fr) 1979-05-15
JPS5025451B2 (fr) 1975-08-23
DE2104506B2 (fr) 1973-12-06
ES399037A1 (es) 1974-12-01
US3781193A (en) 1973-12-25
FR2124364A1 (fr) 1972-09-22
BE778714A (fr) 1972-07-31
SU422135A3 (fr) 1974-03-30
DE2104506A1 (de) 1972-08-10
NL7200996A (fr) 1972-08-03
IT949695B (it) 1973-06-11
GB1328942A (en) 1973-09-05
DD96479A5 (fr) 1973-03-20
DE2104506C3 (de) 1974-07-18
JPS4839427A (fr) 1973-06-09

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse