PROCEDIMIENTO PARA LA OBTENCION DE UREAS ASIMETRICAMENTE SUBSTITUIDAS

PRIOCEDIMIENTO PARA LA FABRICACION DE UREAS SUSTITUIDAS ASIMETRICAMENTE POR REACCION A 250 A 600 (GRADOS) C DE UNA MEZCLA DE ACIDO ISOCIANICO Y AMONIACO CON UNA AMINA PRIMARIA O SECUNDARIA. Prepn. of non-symmetric substd. ureas (I) effected by reacting a gaseous mixt. of isocyanic acid and NH3 at 25...

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Main Authors STERN, GERHARD.DR, SCHULZ, ERICH, MULLNER, MARTIN.DR
Format Patent
LanguageSpanish
Published 01.03.1995
Edition5
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
AMMONIA
CHEMISTRY
COMPOUNDS THEREOF
CYANOGEN
HETEROCYCLIC COMPOUNDS
INORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Abstract PRIOCEDIMIENTO PARA LA FABRICACION DE UREAS SUSTITUIDAS ASIMETRICAMENTE POR REACCION A 250 A 600 (GRADOS) C DE UNA MEZCLA DE ACIDO ISOCIANICO Y AMONIACO CON UNA AMINA PRIMARIA O SECUNDARIA. Prepn. of non-symmetric substd. ureas (I) effected by reacting a gaseous mixt. of isocyanic acid and NH3 at 250-600 deg.C with a prim. or sec. amine. The reaction is pref. effected by either (a) introducing 1-7 (esp. 1.1-3) equivs. of the amine (pref. at 320-380 deg.C) into a gaseous isocyanic acid/NH3 mixt. and then cooling (pref. using an inert diluent) to condense (I); or (b) introducing a gaseous unisocyanic acid/NH3 mixt. at 250-600 deg.C into a primary or sec. amine which is in the liq. or molten state or in an inert diluent and then isolating (I) from the mixt.
AbstractList PRIOCEDIMIENTO PARA LA FABRICACION DE UREAS SUSTITUIDAS ASIMETRICAMENTE POR REACCION A 250 A 600 (GRADOS) C DE UNA MEZCLA DE ACIDO ISOCIANICO Y AMONIACO CON UNA AMINA PRIMARIA O SECUNDARIA. Prepn. of non-symmetric substd. ureas (I) effected by reacting a gaseous mixt. of isocyanic acid and NH3 at 250-600 deg.C with a prim. or sec. amine. The reaction is pref. effected by either (a) introducing 1-7 (esp. 1.1-3) equivs. of the amine (pref. at 320-380 deg.C) into a gaseous isocyanic acid/NH3 mixt. and then cooling (pref. using an inert diluent) to condense (I); or (b) introducing a gaseous unisocyanic acid/NH3 mixt. at 250-600 deg.C into a primary or sec. amine which is in the liq. or molten state or in an inert diluent and then isolating (I) from the mixt.
Author STERN, GERHARD.DR
SCHULZ, ERICH
MULLNER, MARTIN.DR
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Snippet PRIOCEDIMIENTO PARA LA FABRICACION DE UREAS SUSTITUIDAS ASIMETRICAMENTE POR REACCION A 250 A 600 (GRADOS) C DE UNA MEZCLA DE ACIDO ISOCIANICO Y AMONIACO CON...
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SubjectTerms ACYCLIC OR CARBOCYCLIC COMPOUNDS
AMMONIA
CHEMISTRY
COMPOUNDS THEREOF
CYANOGEN
HETEROCYCLIC COMPOUNDS
INORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
Title PROCEDIMIENTO PARA LA OBTENCION DE UREAS ASIMETRICAMENTE SUBSTITUIDAS
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