| 摘要 |
A granulated detergent builder is disclosed comprising: 65 to 85 weight percent of a water insoluble silicate capable of binding calcium, in the form of a finely dispersed, bound-water-containing, synthetically produced, water insoluble crystalline compound having the general formula: (Cat2/nO)x.Me2O3.(SiO2)y (I), in which Cat is a cation exchangeable with calcium with the valency n, x is a number from 0.7 to 1.5, Me is boron or aluminum, and y a number from 0.8 to 6, 4 to 10 weight percent sodium nitrilotriacetate 1.5 to 3 weight percent nonionic surfactant 0 to 1 weight percent alkali 0.5 to 1.5 weight percent carboxymethyl cellulose and/or methylcellulose and the balance is water. The product can be produced by spray drying an aqueous suspension in which all ingredients are dispersed or dissolved. |
