METHOD OF HIGH-DENSITY POWER DETERGENT

摘要

The high density powder detergent is prepared by (a) pulverizing hollow bead shape powder detergent with 0.2-0.4 g/cm3 of apparent density which is produced by spraying detergent slurry from upper part to lower part of counter current type spray drying tower, (b) spraying 1-5 wt% liquid phase zeolite as a binder to aggregate the atomized powder detergent, (c) adding 1-30 wt% fluidizing additive as a coating agent to the aggregated powder detergent. The dispersing stabilizer of liquid zeolite is alkyl ethoxylate or alkylbenzene sulfonate, the fluidizing additive is powder zeolite, talc, clay or silica and has less than 10 micrometer of the particle size.