What is the effect of potassium sulfate produced by different processes on compound fertilizer pellets?

Suitable for high towers produced by the Mannheim process.

In fact, these three processes each have their own characteristics. Its actual application depends on the required quality characteristics of the fertilizer (such as whiteness and water solubility). Similarly, fertilizers produced using different manufacturing processes vary from one another; these differences are evident in the whiteness of their appearance, their water solubility, and the pH level of the finished fertilizer. In fact, these various types of potassium sulfate have little impact on the finished granules; granulation is related to the granulation process of the fertilizer itself (related to masterbatches, viscous materials, and control of moisture and temperature), while potassium sulfate acts merely as an inert material with little effect. However, it will severely affect the granulation performance of fertilizers. So this choice is still very important.

Thank you for your guidance; I’ve learned a lot. You are referring to the drum process; if it is the high tower process, what effects would those three types of potassium sulfate have on granulation and the appearance of the particles?

In high-tower applications, potassium sulfate has a significant impact on the pH value. Practical experience shows that when only rokipotassium (pH 7–8) is used, flat-shaped particles tend to form in the high-potassium formulations; whereas using Mannheim potassium (pH 3–5) results in a very thick slurry with poor particle quality. Using a combination of the two yields much better results

The answer above is correct; if the costs are similar, it’s better to use Mannheim potassium sulfate, which is 52% fully water-soluble