Translations:Fertilizer/32/en

Step 2. Removal of Calcium Nitrate. It is important to remove the calcium nitrate because calcium nitrate is extremely hygroscopic.

• Method 1.(Odda process) Calcium nitrate crystals are removed by centrifugation.
• Method 2. Sulfonitric Process Ca(NO₃)₂ + H₂SO₄ + 2NH₃ → CaSO₄ + 2NH₄NO₃
• Method 3.Phosphonitric Process Ca(NO₃)₂ + H₃PO₄ + 2NH₃ → CaHPO₄ + 2NH₄NO₃
• Method 4.Carbonitric Process Ca(NO₃)₂ + CO₂ + H₂O + 2NH₃ → CaCO₃ + 2NH₄NO₃