VERFAHREN ZUR REINIGUNG VON TETRAACETYLETHYLENDIAMIN (TAED)

VERFAHREN ZUR REINIGUNG VON TETRAACETYLETHYLENDIAMIN (TAED)

Process for purifying, by crystallization, TAED having a titer >/= 99.5% from a mixture containing crude TAED obtained by acetylation of DAED, wherein the purification process is performed in two different stages (1, 2), characterized in that the temperatures at which the stages are performed dif...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: DONELLI, GIORDANO, PARODI, SANDRO, PONTOGLIO, ENRICO
Format: Patent
Sprache:ger
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:Process for purifying, by crystallization, TAED having a titer >/= 99.5% from a mixture containing crude TAED obtained by acetylation of DAED, wherein the purification process is performed in two different stages (1, 2), characterized in that the temperatures at which the stages are performed differ from one another (delta t) by values comprised between 55 and 110.