Montecatini Societa Generale Per L' Industria Mineraria E Chimica
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Priority to GR600126084ApriorityCriticalpatent/GR26084B/en
Publication of GR26084BpublicationCriticalpatent/GR26084B/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
ία μέθοδος διά την παρασκευήν μελαμίνης μεγάλης καθαρότητος, μεγαλυτέρας των 99%, δια μετατροπής ουρίας είς μελαμίνης, CO2 και NH3, χαρακτηριζομένη κε τούτου, ότι η αντίδρασις μετατροπής διεξάγεται είς δύο στάδια, το δεύτερον έκ των οποίων επιτελείται έν απουσία CO2.
A process for the preparation of high purity melamine, greater than 99%, by converting urea to melamine, CO2 and NH3, characterized in that the conversion reaction is carried out in two steps, the second of which is carried out in the absence of CO2.
GR600126084A1960-10-201960-10-20
METHOD FOR THE PREPARATION OF HIGH-PURITY MELAMINE FROM URINE.
GR26084B
(en)
Process and device for the decomposition of ammonium carbamate, in particular resulting from the synthesis of urea, as well as the products obtained by the present process or similar process