High bulk density carbonate-zeolite built heavy duty...

Details High bulk density carbonate-zeolite built heavy duty... High bulk density carbonate-zeolite built heavy duty...

C - Chemistry, Metallurgy

11

D

134/16

C11D 3/08 (2006.01)

Patent

CA 1141619

ABSTRACT OF THE DISCLOSURE A free flowing phosphate-free high bulk density particulate heavy duty nonionic laundry detergent is comprised of particles of spray dried base beads containing ion exchanging zeolite and sodium carbonate with which is mixed a particulate water soluble sodium silicate and into which is ab- sorbed a nonionic detergent. The product is made by spray drying an aque- ous mixture or slurry of the zeolite and carbonate, mixing with the beads produced a water soluble silicate powder such as hydrous sodium silicate of Na2O:SiO2 ratio of about 1:2 and mixing nonionic detergent in liquid form with the mixture of spray dried base beads and silicate powder and absorbing the nonionic detergent into said mixture.

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