Spray-dried aluminosilicate detergents containing silicate and metaborate

Claim 1

A dried granular detergent composition prepared by drying an aqueous slurry comprising: (a) from about 5% to about 40% of a water-soluble organic surface active agent selected from the group consisting of anionic, nonionic, zwitterionic, and ampholytic detergents, and mixtures thereof; (b) from about 10% to about 60% of a finely divided aluminosilicate ion exchange material selected from the group consisting of: (1) crystalline aluminosilicate material of the formula: Na.sub.z [(AlO.sub.2).sub.z.(SiO.sub.2).sub.y ].xH.sub.2 O wherein z and y are at least 6, the molar ratio of z and y is from 1.0 to 0.5 and x is from 10 to 264, said material having a particle size diameter of from about 0.1 micron to about 10 microns, a calcium ion exchange capacity of at least about 200 mg. CaCO 3 eq./g. and a calcium ion exchange rate of at least about 2 grains Ca ++ /gallon/minute/gram/gallon; (2) amorphous hydrated alumiosilicate material of the empirical formula: M.sub.z (zAlO.sub.2.ySiO.sub.2) wherein M is sodium, potassium, ammonium, or substituted ammonium, z is from about 0.5 to about 2, y is 1 and said material has a magnesium ion exchange capacity of at least about 50 milligram equivalents of CaCO 3 hardness per gram of anhydrous aluminosilicate and a Mg ++ exchange rate of at least about 1 grain/gallon/minute/gram/gallon and (3) mixtures thereof; and a mixture of a water-soluble alkali metal silicate and alkali metal borate equivalent to (c) from about 2.0% to about 15% of an alkali metal oxide silicate solid having a weight ratio of SiO 2 :alkali metal oxide of from about 0.8:1 to about 2.3:1; and (d) an alkali metal metaborate to provide a B 2 O 3 :SiO 2 weight ratio of from about 0.1 to about 4.0.