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US 2024/0294469 A1Published application
Process for producing low-biuret urea
AssigneeCasale SA
InventorsLeonardo Marrone, Alberto Benedetti, Paolo Bertini
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Abstract
A process for purify ing a urea-containing aqueous stream, such as the aqueous stream from the recovery section of a urea plant. comprising a step of removing biuret from the urea-containing stream by reverse osmosis in one or more reverse osmosis stages.
Claims23
A process for purifying a urea-containing aqueous stream comprising a step of removing biuret from the urea-containing stream by reverse osmosis, wherein the urea-containing stream is an aqueous solution of urea obtained from a recovery section of a urea plant.
17-18. (canceled)
Dependencies are inferred from the claim text.