drum granulation
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Can urea, monoammonium phosphate, potassium chloride, superphosphate, and ammonium chloride be used together for drum granulation? Do urea and superphosphate react? Are there any issues with storage over time? reward_7ree
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It’s completely possible, but the ratio of the raw materials needs to be adjusted properly.
Could you help calculate a formula? Just these few ingredients are used.
N-P-K is a 15-6-9 formula; using the aforementioned ingredients, it needs to be granulated in a drum.
Last Wednesday, I tried to granulate using materials such as urea, monoammonium phosphate, and potassium sulfate, but it was not possible to form particles. Your raw materials include potassium chloride and ordinary calcium carbonate; the addition of these two substances can **increase the viscosity of the mixture, making it possible to carry out drum granulation. It is worth noting that you need to control the pH value of your product properly; it is best to have a slightly acidic pH at a neutral level.
Urea reacts with ordinary calcium carbonate, resulting in a loss of some nitrogen; it is necessary to conduct molding experiments in the laboratory to determine the rate of loss, and then adjust the amount added accordingly.
Potassium chloride and ammonium chloride can neutralize H3PO4 and Ca(H2PO4)·2H2O in ordinary calcium carbonate, thereby effectively preventing the reaction between urea and ordinary calcium carbonate