How to solve the problem of moisture absorption in blended fertilizers?
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Our factory produces blended fertilizers using urea, superphosphate, and potassium chloride. However, during production it was found that urea and superphosphate react very easily, resulting in a product that resembles mud. After investigation, it was determined that urea and superphosphate react when combined together. Using calcium-magnesium-phosphorus fertilizer does not yield good results, and the price of ammonium phosphate is too high. What can be done to solve this problem? ?
The first method involves first using ammonium carbonate in combination with supercalcium to carry out ammoniation, thereby neutralizing the acid in supercalcium; this process is known as ammoniated supercalcium, which is then used for production. The second method is to add a certain amount of ammonium sulfate, gypsum, or magnesium sulfate
Also, how many KG of urea was used, and what is the formula? Please specify those details so that a more detailed analysis can be conducted.
Ordinary superphosphate contains about 10% free acids, and urea reacts with these free acids; it is better to use ammoniated superphosphate, which is obtained by treating superphosphate with ammonium carbonate to neutralize the free acids.