Colleagues, what fillers are used in the production of medium- and low-concentration compound fertilizers using the high-tower process?
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Colleagues, in the high-tower process for producing medium- and low-concentration compound fertilizers, what kind of fillers are used to produce fertilizers that result in fewer precipitates after dissolution?
Clay is generally used, as this facilitates the decomposition of fertilizers and increases their water solubility.
The filler for high-tower fertilizers is usually concrete fertilizer, which is what we refer to as talcum powder; the particle size is required to be >180 mesh, otherwise sedimentation will occur after dissolution； Clay can also be used, but using it as a filler affects the color of the final product. Ammonium chloride or sulfuric acid an is preferable, as it can also serve as a nitrogen source; however, the final product tends to clump together.
Ammonium chloride and sulfuric acid an can be used, but it’s not easy to add them in low concentrations; generally, talcum powder is used
4# yiefan000 The biggest drawback of stone powder is the excessive amount of sediment that forms when it dissolves in water.
Generally speaking, clay should not be used in high-tower fertilizers; apart from giving an unsatisfactory color, it also affects the flowability of the material. You might consider using calcium powder from Jingxian County in Anhui Province – its whiteness and fineness can be adjusted, and I think around 100 mesh is the best option. Here’s my contact number: 13956607960; my surname is Tang. Of course, talcum powder can also be used; the only drawback is the presence of precipitates. Appropriate amounts of ammonium chloride and ammonium sulfate can be added, but dry ammonia or ammonium sulfate from steel plants or coking plants is required, as the moisture content should be below 1%.
We use calcium powder, >100 mesh
Generally, calcium powder is used, by enterprises in Henan
Dolomite powder around 150 mesh