The manufacturing process of potassium humate generally involves:
Raw Material Selection: High-quality leonardite or lignite is chosen as the raw material because of its rich humic substance content.
Alkaline Extraction: The raw material is treated with potassium hydroxide (KOH) to dissolve humic and fulvic acids from the source.
Filtration: The resulting solution is filtered to remove solid residues, yielding a pure humic acid solution.
Neutralization and Concentration: The solution may be neutralized and concentrated to enhance the potassium content.
Drying or Granulating: Depending on the final product, the liquid can either be dried to produce powder or granules, or it can be left in liquid form for packaging.
Packaging: The final potassium humate product is packaged for distribution in various forms such as liquid, powder, granules, or flakes