Abstract Poorly flowing or caked detergent powders which include synthetic organic detergent, inorganic salt and moisture (with at least some of the moisture hydrating the salt) are reconditioned by mixing therewith a small proportion of hydratable molecular sieve zeolite, preferably of an initial moisture content of less than 3%. The reconditioned powders are free flowing, non-tacky and non-caking and the compositions resulting, rather than being less effective, have additional water softening and building properties due to the presence of the molecular sieve zeolite. Preferably, the molecular sieve zeolite employed is anhydrous and of type 4A and the detergent composition is a heavy duty non-phosphate product.
A method for reconditioning a caked detergent composition of about 18% sodium linear tridecylbenzene sulfonate, about 15% sodium silicate having an Na 2 O:SiO 2 ratio of 1:2.35, about 5% sodium carbonate, about 50% sodium sulfate, about 1% of a C12 to C15 fatty alcohol-polyethylene oxide condensate having about 10 to 15 ethylene oxide units per molecule, about 1% sodium tallow soap, about 1% aluminum silicate clay, about 1.5% adjuvants and about 7.5% moisture, said percents being weight percents relative to the total weight of the composition, which comprises breaking up the caked detergent composition to form a detergent powder; and mixing about 100 parts of the detergent powder with about 3 parts of a type 4A molecular sieve having about 2% hydration and a particle size of about 6.5 to 8.3 microns to produce a molecular sieve coated, freely flowing detergent composition powder.
Claim 2
Independent Claim
144 words
A method for reconditioning a caked detergent composition of about 18% sodium linear tridecylbenzene sulfonate, about 15% sodium silicate having an Na 2 O:SiO 2 ratio of 1:2.35, about 5% sodium carbonate, about 50% sodium sulfate, about 1% of a C12 to C15 fatty alcohol-polyethylene oxide condensate having about 10 to 15 ethylene oxide units per molecule, about 1% sodium tallow soap, about 1% aluminum silicate clay, about 1.5% adjuvants and about 7.5% moisture, said percents being weight percents relative to the total weight of the composition, which comprises breaking up the caked detergent composition to form a detergent powder; and mixing about 100 parts of the detergent powder with about 3 parts of a type 4A molecular sieve having about 2% hydration and a particle size of about 6.5 to 8.3 microns to produce a molecular sieve coated, freely flowing detergent composition powder.