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Sodium feldspar is used as a flux (to lower the melting temperature) in ceramics manufacturing, especially for the production of porcelain stoneware, sanitary pottery and glass. The quality depends on the coloring and homogeneity of the material. Optical sorting evaluates these properties. TOMRA Sorting machines separate high quality feldspar from grey granite and colored feldspar in fractions.

For more information on feldspar, please contact us.