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Soaking Process
Corn kernels are soaked in sulfurous acid (an aqueous solution of sulfur dioxide) at a specific temperature and concentration for over 50 hours. After soaking, the corn kernels are removed, and the remaining liquid—without corn kernels—is referred to as “corn steep liquor.” -
Ultrafiltration
The corn steep liquor is filtered using an ultrafiltration membrane, separating it into a permeate (small-molecule components that pass through the membrane) and a retentate (macromolecular components retained by the membrane).Corn Steep Liquor For Agriculture -
Lime Milk Reaction
The permeate is then reacted with lime milk (calcium hydroxide solution), resulting in an upper clear liquid and a lower precipitate. The clear liquid is mixed with the retentate to form a combined mixture, which is then concentrated to obtain corn steep liquor in slurry form.NPK Fertilizer Corn Steep Liquor Powder 42% -
Drying Process
The corn steep slurry is preheated at a low temperature and then processed using a spray dryer to produce a fine powder. The final product is Corn Steep Liquor Powder (CSLP).100% Water Souble Organic Fertizilizer
