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Giorgio Levi
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C05B13/00—Fertilisers produced by pyrogenic processes from phosphatic materials
C05B13/02—Fertilisers produced by pyrogenic processes from phosphatic materials from rock phosphates
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Abstract
18,433. Levi, G. Aug. 10. Pigments such as Saxony blue are obtained in the manufacture of phosphoric anhydride by treating in an electric furnace phosphorites. silica, a sodium salt, and a metallic compound such as cobalt oxide.
GB190918433D1909-08-101909-08-10Improvements in the Electrochemical Production of Phosphatic Fertilizers.
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