Stabilized compositions comprising ammonium nitrate
View Patent ↗Preferred aspects of the present invention provide ammonium nitrate compositions comprising ammonium nitrate and at least one stabilizing agent, and preferably a third compound. In certain preferred embodiments, the stabilizing agent, together with third compound, is present under conditions and in amounts effective to substantially reduce the detonation sensitivity of the composition and/or to otherwise improve a desired property of the composition.
1. A fertilizer composition comprising:
a double salt that includes ammonium nitrate and a compound selected from the group consisting of ammonium sulfate, ammonium phosphate, calcium nitrate, potassium nitrate, magnesium nitrate, ammonium molvbdenate, ammonium hexaflouralsilicate, neodymium hvdroxynitrate, and combinations of two or more thereof; and
at least one stabilizing agent selected from the group consisting of ammonium tartarate, ammonium oxalate, ammonium sulfamate and combinations thereof;
wherein the fertilizer composition has a reduced sensitivity to detonation relative to the detonation sensitivity of ammonium sulfate nitrate 2:1 double salt.
2. The fertilizer composition of claim 1 , wherein the at least one stabilizing agent is present in an amount of from about 0.1 wt % to about 20 wt %.
3. The fertilizer composition of claim 2 , wherein the at least one stabilizing agent is present in an amount of from about 0.1 wt % to about 10 wt %.
4. The fertilizer composition of claim 3 , wherein the at least one stabilizing agent is present in an amount of from about 0.1 wt % to about 2 wt %.
5. The fertilizer composition of claim 1 , wherein the fertilizer composition comprises single salt AN in an amount from about 0 wt. % of the composition to 1 wt. % of the composition.
6. The fertilizer composition of claim 1 , wherein the composition has an increased onset temperature relative to an onset temperature exhibited by ammonium sulfate nitrate 2:1 double salt (2:1 ASN).
7. The fertilizer composition of claim 6 , wherein the onset temperature of the composition is at least about 1 ° C. above the onset temperature exhibited by ammonium sulfate nitrate 2:1 double salt (2:1 ASN).
8. The fertilizer composition of claim 1 , wherein the composition has an increase in peak drop in heating rate (PDHR) relative to a PDHR exhibited by ammonium sulfate nitrate 2:1 double salt (2:1 ASN).
9. The fertilizer composition of claim 8 , wherein the increase in the peak drop in heating rate (PDHR) of the composition is at least about 15% greater than the PDHR exhibited by ammonium sulfate nitrate 2:1 double salt (2:1 ASN).