Detergent compositions and preparation thereof

Claim 1

A PROCESS FOR THE PREPARATION OF A BLEACHED PARTICULATE DETERGENT COMPOSITION HAVING AN APPARENT DESNITY OF LESS THAN ABOUT 0.45 GRAMS PER CUBIC CENTIMETER WHICH COMPRISES MIXING FROM ABOUT 2 TO ABOUT 65% BY WEIGHT OF A WATER-SOLUBLE FOAMING SYNTHETIC ORGANIC DETERGENT SELECTED FROM THE GROUP CONSISTING OF ANIONIC AND NONIONIC SYNTHETIC ORGANIC DETERGENTS, ABOUT 10 TO 75% BY WEIGHT OF AN ALKALINE HYDRATABLE INORGANIC SODIUM PHASPHATE SALT WHICH FORMS A STABLE HYDRATE AT ROOM TEMPERATURE, ABOUT 2 TO 10% BY WEIGHT OF A HYDROTROPE SELECTED FROM THE GROUP CONSISTING OF SODIUM TOLUENE SULFONATE AND SODIUM XYLENE SULFONATE, ABOUT 15 TO 40% BY WEIGHT OF WATER, AND ABOUT 0.25 TO 1% BY WEIGHT OF HYDROGEN PEROXIDE, TO FORM A PASTE CAPABLE OF RETAINING SMALL OXYGEN BUBBLES WITHOUT SUBSTANTIAL COALESCENCE THEREOF AT A TEMPERATURE OF ABOUT 35 TO 60*C., MIXING OF SAID PASTE BEING STOPPED PRIOR TO ANY SUBSTANTIAL LOSS OF OSYGEN GENERATED SUBSEQUENT TO THE ADDITION OF SAID HYDROGEN PEROXIDE TO SAID MIXTURE, LIBERATING OXYGEN FROM SAID HYDROGEN PEROXIDE INTO SAID PASTE IN AN AMOUNT SUFFICIENT TO BLEACH AND TO EXPAND SAID PASTE TO A FINAL VOLUME AT LEAST 2.5 TIMES THE INITIAL VOLUME THEREOF BY THE GENERATION OF SMALL OXYGEN BUBBLES THEREIN WHILE SAID PASTE HAS A CONSISTENCY WHICH PERMITS IT TO EXPAND AND TO RETAIN SAID SMALL OXYGEN BUBBLES IN DISPERSED FORM, SETTING THE EXPANDED PASTE UNDER QUIESCENT CONDITIONS TO A FRIABLE MASS OF SUBSTANTIALLY SAID FINAL, VOLUME, AND GRANULATING SAID RIABLE MASS TO FORM PARTICLES OF A BLEACHED DETERGENT COMPOSITION CONTAINING FROM 15 TO 35% MOISTURE AND HAVING AN APPARENT DENSITY OF LESS THAN ABOUT 0.45 GRAM PER CUBIC CENTIMETER, SAID PERCENTAGES BY WEIGHT OF SAID ORGANIC DETERGENT AND INORGANIC SALT BEING BASED ON THE WEIGHT OF SAID FINAL PRODUCT AND SAID PERCENTAGES OF WATER AND HYDROGEN PEROXIDE BEING BASED ON THE WEIGHT OF SAID PASTE.