Method for producing coated sodium percarbonate particles

Details Method for producing coated sodium percarbonate particles Method for producing coated sodium percarbonate particles

B - Operations, Transporting

01

D

B01D 1/20 (2006.01) C01B 15/00 (2006.01) C11D 3/39 (2006.01) C11D 17/00 (2006.01)

Patent

CA 2710068

In a process for producing coated sodium percarbonate particles by spray application of a sodium sulfate-containing aqueous solution onto sodium percarbonate particles in a fluidized bed and simultaneous evaporation of water, sodium sulfate and sodium percarbonate-containing dust is used to prepare the sodium sulfate-containing aqueous solution.

L'invention concerne un procédé de fabrication de particules de percarbonate de sodium revêtues par pulvérisation d'une solution aqueuse contenant du sulfate de sodium sur des particules de percarbonate de sodium dans un lit fluidisé et évaporation simultanée de l'eau, selon lequel une poudre contenant du percarbonate de sodium et du sulfate de sodium est utilisée pour fabriquer la solution aqueuse contenant du sulfate de sodium.

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