How does a potassium humate powder factory produce the product?

A potassium humate powder factory produces the product through the following process:
Raw Material Sourcing: The factory starts with high-grade leonardite or lignite, rich in humic substances.
Extraction: The raw material is treated with potassium hydroxide (KOH), which dissolves the humic and fulvic acids present in the source material.
Filtration: The resulting solution is filtered to remove any impurities or undissolved solids.
Concentration: The humic acid solution is concentrated to increase the humic and potassium content.
Drying: The concentrated solution is dried using spray dryers or similar methods to produce fine potassium humate powder.
Quality Control: The product is tested for purity, solubility, and humic content before packaging.
Packaging: The final potassium humate powder is packed into bags for distribution, ready for use in agriculture.