Importance

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Abstract

Granular particles of an available chlorine-containing compound such as sodium dichloroisocyanurate are prepared by conveying a flowing stream of an aqueous slurry of the compound through a tubular chamber under pressure, injecting jets of an atomizing medium such as air into the flowing stream of said slurry to agitate and aerate said slurry, conveying the aerated slurry to an exit port in said tubular chamber, discharging the aerated slurry through said exit port into a zone of reduced pressure and enlarged area, impinging additional jets of an atomizing medium into said slurry as it passes through said exit port, whereby free expansion of said slurry into a cone of aerated droplets of said slurry is effected. The resulting droplets are contacted with a heated gas in said zone to effect evaporation of water from the aerated droplets and thereby produce dry granules of the available chlorine-containing compound.

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First Claim