Method for preparing low-concentration polyaluminosilicate micro

Details Method for preparing low-concentration polyaluminosilicate micro Method for preparing low-concentration polyaluminosilicate micro

1997-06-13

1998-12-29

Lewis, Michael

Compositions

Preservative agents

Anti-corrosion

4233301, C01B 3326

Patent

active

058536167

ABSTRACT:
An improved method and apparatus for preparing low-concentration polyaluminosilicate microgels from a water soluble silicate and an alkali metal aluminate in which the silicate and the aluminate are mixed at a rate to produce a Reynolds number of at least 4000, the mixture is aged and then diluted to a silica concentration of not more than 1.0 wt. %. The method achieves reduced silica deposition during the preparation of the microgels.

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Reynold C. Merrill, Activated Silica Sols in Water Treatment, 40, 1355-1359 No date.
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L.L. Klinger, Improvements in the Coagulation of Surface Waters with Activated Silica, 122, 40-50, 1946 No month.

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