Claims
- 1. A particulate ammonium salt composition coated with from about 0.01 to 5% by weight, based on weight total composition, of a hydroxy-aluminum polymer having a hydroxyl-to-aluminum mol ratio of about 1 to 2.9.
- 2. The coated composition of claim 1 wherein the composition is macroparticles of greater than 20 Tyler mesh.
- 3. The coated composition of claim 1 wherein the composition is prills or granules.
- 4. The coated composition of claim 3 wherein the composition is an ammonium salt-containing fertilizer.
- 5. The coated composition of claim 4 wherein the ammonium salt is ammonium nitrate or sulfate, or a mixture thereof.
- 6. The coated composition of claim 4 wherein the composition is an ammonium nitrate-containing fertilizer.
- 7. The coated composition of claim 4 wherein the composition is an ammonium phosphate-containing fertilizer.
- 8. The coated composition of claim 4 wherein the amount of hydroxy-aluminum polymer is from about 0.5 to 5% by weight and the hydroxyl-to-aluminum mol ratio is about 1.7 to 2.7.
- 9. The coated composition of claim 8 wherein the hydroxy-aluminum polymer is hydroxy-aluminum nitrate, sulfate or chloride and the hydroxyl-to-aluminum mol ratio is about 2.0 to 2.5.
- 10. The coated composition of claim 9 wherein the hydroxy-aluminum polymer is hydroxy-aluminum nitrate.
- 11. The coated composition of claim 10 wherein the composition is an ammonium nitrate-containing fertilizer.
- 12. The coated composition of claim 11 wherein the composition is an ammonium nitrate/ammonium phosphate-containing fertilizer composition.
- 13. The coated composition of claim 11 wherein the composition is an ammonium nitrate/ammonium phosphate/potassium chloride fertilizer composition.
- 14. The coated composition of claim 1 wherein the composition is coated with from about 0.1 to 5% by weight, based on total composition, of a hydroxy-aluminum polymer, and with from about 0.01 to 5% by weight, based on total composition, of ammonium nitrate.
RELATED APPLICATION
This application is a continuation-in-part of U.S. Ser. No. 323,571, filed January 15, 1973, now U.S. Pat. No. 3,852,055, which is directed to reducing the caking tendency of ammonium salts by uniformly incorporating therein a minor amount of a hydroxy-aluminum polymer.
US Referenced Citations (9)
Foreign Referenced Citations (1)
Number |
Date |
Country |
891,562 |
Mar 1962 |
UK |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
323571 |
Jan 1973 |
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