Suppression of fines during the granulation of ammonium nitrate

Details Suppression of fines during the granulation of ammonium nitrate Suppression of fines during the granulation of ammonium nitrate

1989-04-06

1992-10-13

Lander, Ferris

Chemistry: fertilizers

Processes and products

Inorganic material

71 6405, 71 6407, 71 6413, 423346, 423554, 423558, C05C 102

Patent

active

051547520

ABSTRACT:
The formation of dust or fines may be suppressed, during the granulation of ammonium nitrate having a nitrogen content of 28% to 34.5%, by a process in which ammonium nitrate is initially granulated to form a raw granulate containing fines, and thereafter heated and contacted by a hydrated sulfate during a second granulation step wherein the fines are affixed to the raw granulate.

REFERENCES:
patent: 1966947 (1934-07-01), Eyer et al.
patent: 3148946 (1964-09-01), Griffith
patent: 3867124 (1975-02-01), Church

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