Method for manufacturing a calcium nitrate melt and products...

C - Chemistry – Metallurgy – 01 – F

Patent

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Details

C01F 11/44 (2006.01) C01D 9/12 (2006.01) C01F 1/00 (2006.01) C01F 11/42 (2006.01) C05C 5/04 (2006.01) C06B 31/02 (2006.01)

Patent

CA 2336607

The invention relates to a method for manufacturing a homogeneous and ammonium free calcium nitrate melt with high solidification temperature, suitable for conventional particulation methods, by mixing a potassium source with a calcium nitrate source and heating the formed mixture to 150-155 °C for forming a melt comprising 1.5-5.5 % by weight of K (as KNO3), 13-18 % by weight of water and 70-80 % by weight of Ca(NO3)2. The invention further relates to homogeneous and ammonium free calcium nitrate particles where the particles are a particulated product from a melt comprising 1.5-5.5 % by weight of K (as KNO3), 13-18 % by weight of water and 70-80 % by weight of Ca(NO3)2.

L'invention concerne un procédé de production d'un produit fondu à base de nitrate de calcium homogène et sans ammonium, à température de solidification élevée, approprié pour des procédés classiques de mise sous forme de particules, par mélange d'une source de potassium avec une source de nitrate de calcium, et par chauffage du mélange formé à 150-155 DEG C, de façon à former un produit fondu comprenant 1,5-5,5 % en poids de K (KNO3 étant une source de potassium), 13-18 % en poids d'eau et 70-80 % en poids de Ca(NO3)2. L'invention concerne également des particules de nitrate de calcium homogènes et sans ammonium, ces particules étant un produit particulaire provenant d'un produit fondu comprenant 1,5-5,5 % en poids de K (KNO3 étant une source de potassium), 13-18 % en poids d'eau et 70-80 % en poids de Ca(NO3)2.

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