Granulation process

Ammonium nitrate, or a composition comprising ammonium nitrate and at least one other component, is granulated in a process characterized in that the liquid phase required for granulation consists of a solution of ammonium nitrate in anhydrous liquid ammonia. The granulation is preferably carried ou...

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Bibliographische Detailangaben
Hauptverfasser:	OLDLAND HUBERT CHARLES, STEVENSON ROBERT STEWART, MONKS IRENE HUDSON
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY FERTILISERS MANUFACTURE THEREOF METALLURGY NITROGENOUS FERTILISERS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Beschreibung
Zusammenfassung:	Ammonium nitrate, or a composition comprising ammonium nitrate and at least one other component, is granulated in a process characterized in that the liquid phase required for granulation consists of a solution of ammonium nitrate in anhydrous liquid ammonia. The granulation is preferably carried out at temperatures between - 10 DEG and 40 DEG C. The liquid ammonia preferably contains at least 60% by weight ammonium nitrate in solution. The liquid ammonia is subsequently removed by evaporation and excessive ingress of damp air is prevented. The invention is particularly applicable to the granulation process of Specification 968,751.