Title:
AMMONIUM SULFATE NITRATE
Document Type and Number:
WIPO Patent Application WO2002040427
Kind Code:
A3
Abstract:
Ammonium sulfate nitrate composite materials useful as fertilizers having desirable levels of nitrate ions, superior stability against detonation, higher density, greater resistance to moisture, and a method for their manufacture. The ammonium sulfate nitrate composites have as essential constituents ammonium sulfate and the NH4SO4<.>2(NH4NO3) double salt with less than 5 wt.% in combined total of the more hazardous NH4SO4<.>3(NH4NO3) double salt and ammonium nitrate. The composites of the invention are formed by reacting ammonium sulfate with ammonium nitrate in a molar ratio of about 0.9:1 to about 1.1:1 in the presence of a small amount of water in a narrow range of temperatures and then cooling to solidification at a sufficiently rapid rate to prevent macroscopic segregation of the reaction products.
Inventors:
HIGHSMITH RONALD EARL
CORREALE STEVEN THOMAS
KWEEDER JAMES ALPHONSE
CORREALE STEVEN THOMAS
KWEEDER JAMES ALPHONSE
Application Number:
PCT/US2001/046008
Publication Date:
September 19, 2002
Filing Date:
November 14, 2001
Export Citation:
Assignee:
HONEYWELL INT INC (US)
International Classes:
C01C1/24; C05C1/00; C05C13/00; C01C1/18; (IPC1-7): C05C13/00; C05C1/00; C05C3/00; C01C1/18; C01C1/24
Foreign References:
| DE3446787A1 | 1986-07-03 | |||
| GB1259778A | 1972-01-12 | |||
| GB349998A | 1931-05-26 | |||
| FR1368035A | 1964-07-24 | |||
| DE555581C | 1932-07-23 | |||
| US2762699A | 1956-09-11 |
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