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US 5,824,132 AGranted
Method of phosphoric acid concentration
OwnerBronislava Kopyleva, Yuriy Shvartsmaninventors
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Abstract
The wet process phosphoric acid evaporation, its clarifying, fertilizer production and fertilizer efficiency is improved in the presence of multi-component mixture of anionic surfactants and ammonium compound.
Claims15
A process for concentrating phosphoric acid contained in aqueous mixtures, which comprises;
- evaporating water from the aqueous mixture, in the presence of a mixture of anionic surfactants.
Dependencies are inferred from the claim text.