| http://www.w3.org/ns/prov#value | - At the end of the drying, a stage of milling may be undertaken on the product recovered, especially on the product obtained by drying a suspension which has a solids content higher than 15% by weight The precipitated silica which is then obtainable is generally in the form of a powder, preferably with a mean size of at least 15 ??m, in particular between 15 and 60 ??m, for example between 20 and 4
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