Hello,
I was trying to dissolve different humates (origin leonardite or lignite) in urea ammonium nitrate solutions at conventional, alkaline pH and different concentrations of humates (solid form), but it does not dissolve in crude UAN-32 solutions. Maybe somebody has experience in this? Is it possible to do it using only solid humates instead of liquid forms? How to increase solubility or which technological tools should be used for dissolving solid humate to UAN-32?
Thank you in advance.
Kind regards,
Mantas K.
To enhance the solubility of solid humates in UAN-32 solutions, consider adjusting the pH to alkaline levels, using mechanical agitation, or incorporating surfactants. Pre-mixing humates with water and slightly increasing temperature can also improve dissolution, while liquid humate alternatives may offer a more compatible option.
Dear Abdelhack,
Liquid humate would be better probably, but is it possible to dissolve solid humates in UAN straight without dilution? Moreover, which surfactants should be used for making them soluble in a solid form to UAN-32? When pH was increased, nothing has changed.
Kind regards,
Mantas K.