C - Chemistry – Metallurgy – 05 – C
Patent
C - Chemistry, Metallurgy
05
C
C05C 1/02 (2006.01) C05G 1/00 (2006.01)
Patent
CA 2598798
The invention relates to a fertilizer granule containing ammonium nitrate, comprising a core containing ammonium nitrate and a coating layer containing calcium sulphate. The coating layer consists of a mixture containing calcium sulphate and ammonium nitrate. Such a fertilizer granule is preferably produced by contacting the core with an aqueous ammonium nitrate solution and solid calcium sulphate particles, either as a slurry or separately. The production of the fertilizer granule is safe and easy.
La présente invention concerne un granulé d'engrais au nitrate d'ammonium constitué d'un noyau de nitrate d'ammonium et d'une enveloppe au sulfate de calcium. L'enveloppe est constitué d'un mélange de sulfate de calcium et de nitrate d'ammonium. Pour produire cet engrais en granulés, on met de préférence le noyau en contact avec une solution aqueuse de nitrate d'ammonium et avec des particules de sulfate de calcium solide, soit sous forme de boue soit séparément. Ce procédé de production d'engrais en granulés est facile et sans danger.
Kiiski Harri
Lylykangas Mikko
Milborne Robert John
Poukari Juhani
Goudreau Gage Dubuc
Kemira Growhow Oyj
Kiiski Harri
Lylykangas Mikko
Milborne Robert John
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