Silicate products
AssigneeUnilever Patent Holdings B.V.
InventorsJoseph P. H. Theunissen, Theo Osinga
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Abstract
The characteristics of compacted sodium silicate, in particular the bulk density, are improved by heating the material at an elevated temperature in an agitated bed. Bulk density in the region of 1 kg/liter can be obtained.
Claims6
A method of treating compacted sodium silicate granules, having a mole ratio SiO.sub.2 /Na.sub.2 O of from about 1.5 to about 3.3:1 and an average particle size in the range from about 0.3 mm to about 2.0 mm, wherein the granules are heated in the presence of water to a temperature above about 60.degree. C. in an agitated bed whereby the bulk density of the granules is increased and substantially no agglomeration takes place and attrition properties are improved.
Dependencies are inferred from the claim text.