Granulated ammonium nitrate products
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United States of America Patent
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-
Mar 7, 1995
Grant Date -
N/A
app pub date -
May 5, 1993
filing date -
May 5, 1992
priority date (Note) -
Expired
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Abstract
A process for the production of explosives grade ammonium nitrate prill (EGAN) comprises the steps of (A). producing seed ammonium nitrate prill as substantially monosized prills; and then (B). fattening using melt/solution of ammonium or mixed nitrates, with drying and thermal treatments, the seed prill in an inclined rotating jacketed pan granulator or a cascade of such pans to produce a final fattened EGAN prill product preferably having at most about 4 mm diameter.
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