Process for preparing thermally stable ammonium nitrate- containing granules

US4408998A · kind A · utility

Assignee

• Unie van Kunstmestfabrieken B.V. · NL

Inventors

• Stanislaus M. P. Mutsers · Geleen, NL
• Cornelis Hoek · Stuttgart, DE
• Gerardus M. C. Wagemans · Haelen, NL

Key dates

• Filing date: Jun 18, 1982
• Grant date: Oct 11, 1983
• Expiry date: Jun 18, 2002

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C05C1/02
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A process for preparing thermally stable ammonium nitrate-containing granules having high bulk density, high impact resistance, high crushing resistance and little or no tendency to cake by spraying a composition containing at most 5% by weight water, about 0.5% to 5% by weight of a insoluble and chemically inert silica-containing material, ammonium nitrate, and other components into a fluidized bed of ammonium nitrate seed particles thereby forming granules and recovering the thus formed ammonium nitrate-containing granulated product.