FR2022325A1 - - Google Patents

Info

Publication number
FR2022325A1
FR2022325A1 FR6937197A FR6937197A FR2022325A1 FR 2022325 A1 FR2022325 A1 FR 2022325A1 FR 6937197 A FR6937197 A FR 6937197A FR 6937197 A FR6937197 A FR 6937197A FR 2022325 A1 FR2022325 A1 FR 2022325A1
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.)
Withdrawn
Application number
FR6937197A
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.)
Knapsack AG
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 FR2022325A1 publication Critical patent/FR2022325A1/fr
Withdrawn legal-status Critical Current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
    • C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
    • 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)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
FR6937197A 1968-10-29 1969-10-29 Withdrawn FR2022325A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1805758A DE1805758C3 (de) 1968-10-29 1968-10-29 Verfahren zur Abtrennung von Acrylsäure aus wäßriger Rohacrylsäure

Publications (1)

Publication Number Publication Date
FR2022325A1 true FR2022325A1 (fr) 1970-07-31

Family

ID=5711804

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6937197A Withdrawn FR2022325A1 (fr) 1968-10-29 1969-10-29

Country Status (6)

Country Link
US (1) US3657332A (fr)
BE (1) BE740960A (fr)
DE (1) DE1805758C3 (fr)
FR (1) FR2022325A1 (fr)
GB (1) GB1235634A (fr)
NL (1) NL6916090A (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2121123C3 (de) * 1971-04-29 1980-06-12 Basf Ag, 6700 Ludwigshafen Verfahren zum Abtrennen von Wasser aus wäßrigen Lösungen von Acrylsäure durch azeotrope Destillation
BE786398A (fr) * 1971-07-21 1973-01-18 Basf Ag Procede de preparation de l'acide acrylique anhydre
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.
JPS6016927B2 (ja) * 1979-07-19 1985-04-30 三菱レイヨン株式会社 メタクリル酸の抽出分離法
US5154800A (en) * 1992-01-31 1992-10-13 Lloyd Berg Dehydration of acrylic acid by extractive distillation
DE10301040B4 (de) 2003-01-13 2005-07-21 Stockhausen Gmbh Aufreinigung eines Monomers durch Extraktion mit einem Phasenbildner und Kristallisation
CN105061193B (zh) * 2015-08-10 2017-03-22 蓝星（北京）技术中心有限公司 蛋氨酸生产废水处理中回收有机物的方法

Also Published As

Publication number Publication date
DE1805758C3 (de) 1974-07-18
BE740960A (fr) 1970-04-29
NL6916090A (fr) 1970-05-04
DE1805758B2 (de) 1973-12-06
GB1235634A (en) 1971-06-16
DE1805758A1 (de) 1970-05-21
US3657332A (en) 1972-04-18

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Legal Events

Date Code Title Description
ST Notification of lapse