| http://www.w3.org/ns/prov#value | - The crude kaolin used in this Example was a further cream Georgia kaolin, of somewhat finer particle size than that utilized for Example XIX. The said material was thus subjected to the same procedures as in Example XIX and it was found that the control portion of same yielded a G.E. brightness of 94.6, while that subjected to the present invention including the further step of calcining the produ
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