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Stern Gerhard Dipl Ing Dr

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Publication

Featured researches published by Stern Gerhard Dipl Ing Dr.

Archive | 1991

Asymmetrically substd. urea(s) prodn. - by passing prim. or sec. amine into hot gaseous mixt. of isocyanic acid and ammonia and cooling reaction mixt. to condense prod.

Stern Gerhard Dipl Ing Dr; Muellner Martin Dipl Ing Dr; Roessler Markus

Archive | 1991

Sepn. of ammonia from gaseous mixt. with isocyanic acid - by addn. of tert. amine and condensation of adduct of isocyanic acid and amine

Stern Gerhard Dipl Ing Dr; Muellner Martin Dipl Ing Dr; Schulz Erich

Archive | 1993

N-mono or N,N-di:substd. urea cpds. prodn. in high yield - comprises reacting ammonium isocyanate with prim. or sec. amine in diluent, without needing to isolate free isocyanic acid

Stern Gerhard Dipl Ing Dr; Muellner Martin Dipl Ing Dr; Roessler Markus

Archive | 1991

Removal of ammonia from isocyanic acid-ammonia mixts. - by adding an ether at specific temp. and cooling, so that an isocyanic acid-ether adduct condenses out and ammonia is sepd. as gas

Stern Gerhard Dipl Ing Dr; Muellner Martin Dipl Ing Dr; Schulz Erich

Archive | 1991

Unsymmetrically-substd. urea(s) prepn. - by reaction of prim. or sec. amine with substd. ammonium isocyanate in inert diluent

Stern Gerhard Dipl Ing Dr; Muellner Martin Dipl Ing Dr

Archive | 1995

Verfahren zur Abtrennung von Isocyansäure aus einem Gemisch von Isocyansäure und Ammoniak.

Muellner Martin Dipl Ing Dr; Stern Gerhard Dipl Ing Dr; Erich Schulz

Archive | 1995

PROCEDIMIENTO PARA LA OBTENCION DE UREAS ASIMETRICAMENTE SUBSTITUIDAS.

Mullner Martin Dipl-Ing Dr; Stern Gerhard Dipl Ing Dr; Schulz Erich

Archive | 1995

PROCEDIMIENTO PARA LA SEPARACION DE ACIDO ISOCIANURICO A PARTIR DE UNA MEZCLA DE ACIDO ISOCIANURICO Y DE AMONIACO.

Mullner Martin Dipl-Ing Dr; Stern Gerhard Dipl Ing Dr; Erich Schulz

Archive | 1995

PROCEDIMIENTO PARA LA OBTENCION DE UREAS ASIMETRICAMENTE SUBSTITUIDAS, CARBAMATOS, TIOCARBAMATOS E ISOCIANATOS SUBSTITUIDOS.

Mullner Martin Dipl-Ing Dr; Stern Gerhard Dipl Ing Dr; Erich Schulz; Rossler Markus

Archive | 1995

VERFAHREN ZUR HERSTELLUNG UNSYMMETRISCH SUBSTITUIERTER HARNSTOFFE.

Muellner Martin Dipl Ing Dr; Stern Gerhard Dipl Ing Dr; Schulz Erich

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