Stabilised Aluminosilicate Slurries
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United States of America Patent
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Issued Date -
Jan 10, 2008
app pub date -
May 6, 2005
filing date -
May 13, 2004
priority date (Note) -
Abandoned
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Abstract
An aqueous slurry comprises (a) a crystalline aluminosilicate represented by the empirical formula M.sub.2/nO.Al.sub.2O.sub.3.xSiO.sub.2.yH.sub.2O wherein M represents a first metal moiety, said first metal having a valency of n, x is the molar ratio of silica to alumina and y indicates the molar ratio of water to alumina, (b) a mineral or organic acid, and (c) particulate silica. The silica may have a BET surface area greater than 500 m.sup.2/g and a pore volume, as measured by nitrogen manometry of less than 2.1 cm.sup.3/g. The slurry is stable on storage but has a low viscosity at low shear rate.
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