Why Does Granular Ammonium Sulphate Cake During Transshipment?
One common reason is related to how the cargo is loaded. Based on discharging records, granular ammonium sulphate packed in big bags is often placed at the bottom of the vessel, while heavier cargo such as steel, machinery, or equipment is stacked on top.
During extended transshipment periods—sometimes lasting 3 to 4 months—this weight, combined with changes in humidity and temperature, can lead to pressure-induced caking at the bottom.
If the granule hardness is low, the product produces more dust, making the caking more compact and harder to break apart.
On the other hand, if the granule hardness is high, there is less dust, and even if caking occurs, it is generally easier to break up.
This clearly shows how important granule hardness is for the quality and handling of granular ammonium sulphate.
