DE2963032D1 - Foam regulation process for plants producing acrylonitrile and acrylic esters - Google Patents

Foam regulation process for plants producing acrylonitrile and acrylic esters

Info

Publication number
DE2963032D1
DE2963032D1 DE7979400839T DE2963032T DE2963032D1 DE 2963032 D1 DE2963032 D1 DE 2963032D1 DE 7979400839 T DE7979400839 T DE 7979400839T DE 2963032 T DE2963032 T DE 2963032T DE 2963032 D1 DE2963032 D1 DE 2963032D1
Authority
DE
Germany
Prior art keywords
acrylic esters
regulation process
plants producing
producing acrylonitrile
foam regulation
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
DE7979400839T
Other languages
English (en)
Inventor
Francis Bruno
Jean Konareff
Louis Pardon
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.)
I.C.I. FRANCE S.A., CLAMART, FR
Original Assignee
Produits Chimiques Ugine Kuhlmann
Ugine Kuhlmann 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 Produits Chimiques Ugine Kuhlmann, Ugine Kuhlmann SA filed Critical Produits Chimiques Ugine Kuhlmann
Application granted granted Critical
Publication of DE2963032D1 publication Critical patent/DE2963032D1/de
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/02—Foam dispersion or prevention
    • B01D19/04—Foam dispersion or prevention by addition of chemical substances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/02—Foam dispersion or prevention
    • B01D19/04—Foam dispersion or prevention by addition of chemical substances
    • B01D19/0404—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/48—Separation; Purification; Stabilisation; Use of additives
    • C07C67/62—Use of additives, e.g. for stabilisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DE7979400839T 1978-11-30 1979-11-09 Foam regulation process for plants producing acrylonitrile and acrylic esters Expired DE2963032D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7833781A FR2442830A1 (fr) 1978-11-30 1978-11-30 Procede de regulation des mousses dans les installations de fabrication de l'acrylonitrile et des esters acryliques

Publications (1)

Publication Number Publication Date
DE2963032D1 true DE2963032D1 (en) 1982-07-22

Family

ID=9215526

Family Applications (1)

Application Number Title Priority Date Filing Date
DE7979400839T Expired DE2963032D1 (en) 1978-11-30 1979-11-09 Foam regulation process for plants producing acrylonitrile and acrylic esters

Country Status (3)

Country Link
EP (1) EP0012052B1 (de)
DE (1) DE2963032D1 (de)
FR (1) FR2442830A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3438389A1 (de) * 1984-10-19 1986-04-24 Basf Ag, 6700 Ludwigshafen Verwendung von endgruppenverschlossenen fettalkohol- oder alkylphenolalkoxylaten zur schaumbekaempfung in der zucker- und in der hefeindustrie
DE58903406D1 (de) * 1989-01-09 1993-03-11 Ciba Geigy Ag Alkalibestaendiges silikonoelfreies entschaeumungsmittel.
DE4431158C2 (de) * 1994-09-01 1999-10-21 Henkel Kgaa Methyl-endgruppenverschlossene Alkyl- und/oder Alkenylpolyglycolether
CN111825551A (zh) * 2020-04-01 2020-10-27 江苏斯尔邦石化有限公司 丙酮氰醇法生产mma中提高产品质量的方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE507707A (de) *
GB800159A (en) * 1955-03-30 1958-08-20 Wyandotte Chemicals Corp Polyoxyalkylene surface active compounds
GB1097491A (en) * 1964-03-09 1968-01-03 Ici Ltd Improvements in and relating to surface active compounds
US3637869A (en) * 1969-06-02 1972-01-25 Basf Wyandotte Corp Nonionic biodegradable foam control agent
DE2204768A1 (de) * 1972-02-02 1973-08-09 Henkel & Cie Gmbh Verfahren zur durchfuehrung von textilbehandlungsprozessen in der textilindustrie
DE2252186A1 (de) * 1972-10-25 1974-05-16 Basf Ag Alkalistabile, oberflaechenaktive, schaumdaempfende mittel (acetale)
BR7408365D0 (pt) * 1973-10-12 1975-07-29 Olin Corp Produto tenso ativo
DE2724349A1 (de) * 1977-05-28 1978-12-07 Henkel Kgaa Verfahren zur herstellung spruehgetrockneter, nichtionische tenside enthaltender waschmittel
US4105582A (en) * 1977-06-23 1978-08-08 Nalco-Hakuto Chemical Company Composition for the control of corrosion and foaming in the acrylonitrile plants

Also Published As

Publication number Publication date
EP0012052B1 (de) 1982-06-02
FR2442830B1 (de) 1981-05-08
FR2442830A1 (fr) 1980-06-27
EP0012052A1 (de) 1980-06-11

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: ATOCHEM, COURBEVOIE, HAUTS-DE-SEINE, FR

8327 Change in the person/name/address of the patent owner

Owner name: I.C.I. FRANCE S.A., CLAMART, FR

8328 Change in the person/name/address of the agent

Free format text: TIEDTKE, H., DIPL.-ING. BUEHLING, G., DIPL.-CHEM. KINNE, R., DIPL.-ING. GRUPE, P., DIPL.-ING. PELLMANN, H., DIPL.-ING. GRAMS, K., DIPL.-ING. STRUIF, B., DIPL.-CHEM. DR.RER.NAT., PAT.-ANW., 8000 MUENCHEN

8339 Ceased/non-payment of the annual fee