2023 Marrone WO2023237398 process for removing biuret from urea

A process for removing biuret for solid urea (UR), wherein the solid urea is in a granular or powder form, the process including leaching the solid urea with a leaching solution (LS) which is a urea saturated aqueous solution, wherein biuret contained in the solid urea is transferred to said leacliing solution during the leaching process, obtaining a purified solid urea.

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