METHOD AND APPARATUS FOR PRODUCING AMMONIUM CARBONATE FROM UREA

A method for producing ammonium carbonate from urea having the steps of providing a urea solution; hydrolyzing the urea solution to produce NH3, CO2 and water vapor at a chosen temperature; contacting the NH3, CO2 and water vapor with an ammonium carbonate solution; and maintaining the concentration...

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Bibliographische Detailangaben
Hauptverfasser:	MCLARNON CHRISTOPHER, MAHONEY RICHARD, DUNCAN JOANNA
Format:	Patent
Sprache:	eng
Schlagworte:	AMMONIA CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOUNDS THEREOF CYANOGEN INORGANIC CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	A method for producing ammonium carbonate from urea having the steps of providing a urea solution; hydrolyzing the urea solution to produce NH3, CO2 and water vapor at a chosen temperature; contacting the NH3, CO2 and water vapor with an ammonium carbonate solution; and maintaining the concentration of ammonium carbonate between 5 and 30% by weight by adding water to the solution.