Controlled release aquatic nutrients

C - Chemistry – Metallurgy – 05 – B

Patent

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Details

C05B 7/00 (2006.01) A01K 61/02 (2006.01) A23K 1/175 (2006.01) A23K 1/18 (2006.01) C05G 3/00 (2006.01)

Patent

CA 2211447

A method of using phosphate chemicals of the formula LDPO4 to provide controlled release nutrients to the food chain in aquatic environments to supply improved feeding and growth of fish, wherein L represents a monovalent Lewis Acid moiety, D represents a divalent metal moiety, and PO4 represents an orthophosphate moiety. The method includes the use of slow release phosphate chemicals which provide water soluble nutrients disseminating in flowing water streams for a period of about one year. The chemicals include: magnesium ammonium phosphate, manganous ammonium phosphate, zinc ammonium phosphate, ferrous ammonium phosphate, magnesium potassium phosphate, manganous potassium phosphate.

Un procédé d'utilisation de produits chimiques phosphatés de la formule LDPO¿4? permet d'assurer une libération régulée des substances nutritives dans la chaîne alimentaire dans des environnements aquatiques, ceci afin d'améliorer la nourriture et la croissance des poissons. Dans cette formule, L représente une fraction monovalente d'acide de Lewis, D représente une fraction divalente de métal et PO¿4? représente une fraction orthophosphate. Le procédé consiste à utiliser des produits chimiques phosphatés à libération lente qui fournissent des substances nutritives solubles dans l'eau se disséminant dans des courants d'eaux vives sur une période d'un an environ. Ces produits chimiques comprennent du phosphate de magnésium et d'ammonium, du phosphate manganeux et d'ammonium, du phosphate de zinc et d'ammonium, du phosphate ferreux et d'ammonium, du phosphate de magnésium et de potassium et du phosphate manganeux et de potassium.

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