BE835228A - Procede perfectionne pour separer des residus de la fabrication du diisocyanate de toluylene a partir de melanges qui les contiennent - Google Patents

Procede perfectionne pour separer des residus de la fabrication du diisocyanate de toluylene a partir de melanges qui les contiennent

Info

Publication number
BE835228A
BE835228A BE161564A BE161564A BE835228A BE 835228 A BE835228 A BE 835228A BE 161564 A BE161564 A BE 161564A BE 161564 A BE161564 A BE 161564A BE 835228 A BE835228 A BE 835228A
Authority
BE
Belgium
Prior art keywords
mixtures
contain
manufacturing
toluylene diisocyanate
perfected process
Prior art date
Application number
BE161564A
Other languages
English (en)
French (fr)
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 filed Critical
Publication of BE835228A publication Critical patent/BE835228A/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • C07C263/18—Separation; Purification; Stabilisation; Use of additives
    • C07C263/20—Separation; Purification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BE161564A 1974-11-07 1975-11-04 Procede perfectionne pour separer des residus de la fabrication du diisocyanate de toluylene a partir de melanges qui les contiennent BE835228A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742452805 DE2452805A1 (de) 1974-11-07 1974-11-07 Verfahren zur abtrennung von rueckstaenden der toluylendiisocyanatherstellung

Publications (1)

Publication Number Publication Date
BE835228A true BE835228A (fr) 1976-05-04

Family

ID=5930242

Family Applications (1)

Application Number Title Priority Date Filing Date
BE161564A BE835228A (fr) 1974-11-07 1975-11-04 Procede perfectionne pour separer des residus de la fabrication du diisocyanate de toluylene a partir de melanges qui les contiennent

Country Status (4)

Country Link
US (1) US4076577A (xx)
BE (1) BE835228A (xx)
DE (1) DE2452805A1 (xx)
FR (1) FR2290419A1 (xx)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2846815A1 (de) * 1978-10-27 1980-05-08 Ayer Ag Verfahren zur aufarbeitung von isocyanat-destillationsrueckstaenden
DE2846814A1 (de) * 1978-10-27 1980-05-08 Bayer Ag Suspensionen von isocyanat-destillationsrueckstaenden in polyolen
DE2915830A1 (de) * 1979-04-19 1980-10-23 Basf Ag Gewinnung von toluylendiisocyanat und/oder hoehersiedenden loesungsmitteln im wirbelbett aus destillationsrueckstaenden der toluylendiisocanat-herstellung
DE2942678A1 (de) * 1979-10-23 1981-05-07 Bayer Ag, 5090 Leverkusen Verfahren zur aufarbeitung von vernetzten, harnstoffgruppenhaltigen isocyanatdestillationsrueckstaenden und verwendung der verfahrensprodukte als ausgangskomponenten bei der herstellung von kunststoffen
US5185384A (en) * 1991-01-28 1993-02-09 The Dow Chemical Company Method for reducing hydrolyzable chloride in toluene diisocyanate
US5216042A (en) * 1991-07-10 1993-06-01 The Dow Chemical Company Process for preparing viscosity-stabilized reactive toluene diisocyanate distillation residues and blends thereof
GB9407257D0 (en) * 1993-04-22 1994-06-08 Ici Plc Vaporisation of liquids
US5902459A (en) * 1996-06-10 1999-05-11 Basf Corporation Recovery of products from toluenediisocyanate residues
EP1371634A1 (en) * 2002-06-14 2003-12-17 Bayer Ag Process for the purification of mixtures of toluenediisocyanate
EP1371633A1 (en) * 2002-06-14 2003-12-17 Bayer Ag Process for the purification of mixtures of toluenediisocyanate incorporating a dividing-wall distillation column
ES2271171T3 (es) * 2002-10-22 2007-04-16 Bayer Materialscience Ag Procedimiento para la purificacion de toluendiisocianato que incorpora una columna de destilacion de pared divisoria para la purificacion final.
DE102007024081A1 (de) * 2007-05-22 2008-11-27 Emitec Gesellschaft Für Emissionstechnologie Mbh Verfahren und Vorrichtung zum Verdampfen eines Fluides
MX2010001396A (es) * 2007-08-31 2010-03-01 Basf Se Metodo para la produccion de isocianatos.
EP2364294B1 (de) * 2008-11-07 2013-07-03 Basf Se Verfahren zur herstellung von isocyanaten
DE102011051467A1 (de) 2011-06-30 2013-01-03 Buss-Sms-Canzler Gmbh Verfahren zur Gewinnung von Toluylendiisocyanat aus flüssigen Rückständen der Toluylendiisocyanatherstellung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2911429A (en) * 1956-07-09 1959-11-03 Gen Aniline & Film Corp Process for the preparation of isocyanates
US3287387A (en) * 1963-07-29 1966-11-22 Olin Mathieson Process for the production of aromatic isocyanates
US3508882A (en) * 1967-11-17 1970-04-28 Monsanto Co Stirred autoclave
DE2058032A1 (de) * 1970-11-25 1972-05-31 Zimmer Ag Ind Anlagen Verfahren und Vorrichtung zur kontinuierlichen Herstellung von Isocyanaten

Also Published As

Publication number Publication date
US4076577A (en) 1978-02-28
FR2290419A1 (fr) 1976-06-04
DE2452805A1 (de) 1976-05-20
FR2290419B1 (xx) 1978-08-18

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