Finely divided metal silicate products

Claim 1

IN THE MANUFACTURE OF FINELY DIVIDED METAL SILICATE PRODUCTS, THE PROCESS WHICH CONSISTS ESSENTIALLY IN (A) PREPARING AN AQUEOUS SOLUTIONS OF SODIUM SILICATE HAVING A WEIGHT PERCENT RATIO OF NA2O TO SIO2 WITHIN THE RANGE OF FROM ABOUT 2:1 TO 1:4 AND A CONCENTRATION OF SIO2 RANGING FROM ABOUT 1 TO 30 PERCENT BY WEIGHT (B) MIXING SAID AQUEOUS SOLUTION WITH A WATER MISCIBLE ORGANIC AGENT CAPABLE OF COACERVATING SILICATE SOLUTIONS IN A QUANTITY AND UNDER CONDITIONS TENDING TO PRODUCE A STATE OF INCIPIENT COACERVATION BUT WITHOUT THE FORMATION OF AN INSOLUBLE PRECIPITATE, THE INCIPIENT COACERVATION BEING INDICATED BY THE FIRST APPEARANCE OF A FAINT OPALESCENCE IN THE MIXTURE, (C) MORE THAN INCIPIENT COACERVATION BEING PREVENTED BY MIXING IN AN AQUEOUS OF AN INSOLUBILIZING AGENT COMPRISING AN METAL COMPOUND WHICH FORMS AN INSOLUABLE SILICATE BEFORE THE APPERANCE OF MORE THAN A FAINT OPALESENCE IN THE MIXTURE, AND COMPLETING THE MIXING IN OF SAID INSOLUBILIZING AGENT BEFORE PRECIPITATION OCCURES, (D) THE QUANTITY OF SAID INSOLUBILIZING AGENT EMPLOYED BEING SIFFICENT TO CONVERT AT LEAST A SUBSTANTIAL PROPORTION OF THE SODIUM SILICATE INTO AN INSOLUBLE PRECIPITATE, AND SAID INSOLUBILIZING BEING MIXED WITH THE SODIUM SILICATE SOLUTION NO EARLIER THAN THE ORGANIC COACERVATING AGENT IS MIXED THEREWITH. (E) MAINTAINING THE ENVIRONMENTAL CONDITIONS OF CONCENTRATION, TEMPERATURE AND PH SUBSTANTIALLY CONSTANT DURING THE ENTIRE PERIOD OF FORMATION OF THE INSOLUBLE PRECIPITATE BY COMPLETING THE MIXING IN OF THE INSOLUBILIZING AGENT WITHIN A PERIOD NOT SUBSTANTIALLY EXCEEDING 10 SECONDS, AND (F) RECOVERING THE RESULTING FINELY-DIVIDED SUBSTANTIALLY GEL-FREE PRECIPITATE.