FIELD: chemistry.
SUBSTANCE: invention relates to a method of producing sodium percarbonate particles coated with a shell by spraying said particles with sodium sulphate-containing aqueous solution in a fluidised layer while simultaneously evaporating water, wherein to prepare the sodium sulphate-containing aqueous solution, sodium sulphate and sodium percarbonate-containing dust are used.
EFFECT: sodium percarbonate particles coated with a shell which are obtained using said method are characterised by higher stability during storage in detergents.
8 cl, 2 tbl
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Authors
Dates
2012-06-27—Published
2008-11-20—Filed