Particulate urea with finely divided inorganic material...

C - Chemistry – Metallurgy – 07 – C

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C07C 273/14 (2006.01) C05C 9/00 (2006.01)

Patent

CA 2198644

A particulate urea product having improved hardness, nonfriable and anti-caking properties and which is useful for either direct application to the soil or as an intermediate product for the subsequent incorporation with other fertilizer materials into solid bulk blends. The product consists of an admixture of urea and a finely divided inorganic material selected from the group consisting of calcium oxide, calcium hydroxide, cement and fly ash and is in particulate form, some examples of which are granules or prills.

Produit d'urée en particules plus dures, non friables et anti-mottantes. Le produit peut être appliqué directement sur le sol ou être utilisé comme produit intermédiaire à incorporer à d'autres engrais dans des mélanges solides en vrac. Il consiste en un mélange d'urée et d'une matière inorganique finement divisée choisie dans le groupe comprenant l'oxyde de calcium, l'hydroxyde de calcium, le ciment et les cendres volantes, sous forme particulaire dont les granules ou les sphérules sont des exemples.

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