B - Operations – Transporting – 01 – F
Patent
B - Operations, Transporting
01
F
134/51
B01F 3/12 (2006.01) B01J 39/10 (2006.01) B08B 3/08 (2006.01) C11D 3/12 (2006.01)
Patent
CA 1103124
ABSTRACT OF THE DISCLOSURE A method for the preparation of finely-divided water-insoluble calcium-binding aluminosilicate suspensions suitable for detergent formulations comprising 1) mixing an aqueous alkali metal aluminate solution with an aqueous alkali metal silicate solution in the presence of an excess of alkali to give a silicate compound having a calcium-binding power of at least 50 mg CaO/gm of anhydrous active substance and having the formula, combined water not shown: (M2O)0.8-1.3 ? Al2O3 ? (SiO2)1.75-2.0 wherein M represents an alkali metal, wherein said aqueous solutions have a composition corresponding to the desired Al2O3 and SiO amounts of the above formula, with at least 2.5 mols M2O/mol Al2O3 and not more than 80 mols H2O/mol Al2O3, rapidly with vigorous agitation, 2) agitating the mixture vigorously while continuing said mixing until the mixture viscosity of the aqueous mixture has been passed but the minimum viscosity has not yet been reached, 3) then homogenizing said mixture at least once by recycling and until said mixing step is completed, 4) maintaining the homogenized aqueous suspension at an elevated temperature until formation of at least some aluminosilicate crystals, and 5) recovering said aluminosilicate suspensions. -1-
270931
Carduck Franz-J.
Just Gunter
Wust Willi
Deutsche Gold Und- Silber-Scheideanstalt Vormals Roessler
Henkel Kommanditgesellschaft Auf Aktien (henkel Kgaa)
Macrae & Co.
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