Method for manufacturing a calcium nitrate melt and product thereof
AssigneeNorsk Hydro ASA
InventorsTorstein Obrestad, Lars Gustav Moland
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Abstract
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.
Claims11
A method for manufacturing a homogeneous and ammonium free calcium nitrate melt with high solidification temperature suitable for particulation, which comprises mixing a potassium source with a calcium nitrate source, and heating the formed mixture to 150-155° C. to form a homogeneous and ammonium free 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.
Homogeneous and ammonium free calcium nitrate particles, which 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.
Dependencies are inferred from the claim text.