C - Chemistry – Metallurgy – 05 – C
Patent
C - Chemistry, Metallurgy
05
C
C05C 3/00 (2006.01)
Patent
CA 2731898
The invention relates to a method for preparing pelletized ammonium sulfate particles, the method comprising --providing ammonium sulfate crystals; - isolating a fraction comprising crystals having an intermediate size from crystals having a small size and from crystals having a large size, thereby obtaining remaining crystals comprised of crystals having small size and crystals having large size; and - pelletizing through a die at least part of the remaining crystals, i.e. at least part of the crystals from which the fraction comprising crystals having the intermediate size have been isolated, thereby forming pelletized ammonium sulfate particles.
L'invention porte sur un procédé de préparation de particules de sulfate d'ammonium en boulettes. Ce procédé comprend les opérations consistant à : - se procurer des cristaux de sulfate d'ammonium; - isoler une fraction comprenant des cristaux de dimension intermédiaire parmi des cristaux de petite dimension et parmi des cristaux de grande dimension, permettant ainsi d'obtenir des cristaux restants se composant de cristaux de petite dimension et de cristaux de grande dimension; et transformer en boulettes à travers une filière au moins une partie des cristaux restants, à savoir au moins une partie des cristaux desquels la fraction comprenant des cristaux de dimension intermédiaire a été isolée, permettant ainsi de former des particules de sulfate d'ammonium en boulettes.
Fine Justice
Huffmann Steven
Parkinson James Franklin IV
Dsm Ip Assets B.v.
Smart & Biggar
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