1 Zirconium compounds, namely, zirconium chlorides, zirconium oxides, zirconium silicate, zirconium oxychloride, zirconium hydroxide, zirconium salts, zirconium nitrate, zirconium sulfate, zirconium sol; rare earth double salts; rare earth metal salts; rare earth chemical compounds; metallic oxides; oxides; catalysts, namely, catalysts for automobile exhaust gas, catalysts for chemical, petroleum and petrochemical industries, catalysts for environmental chemistry; chemical adsorbents for removing impurities from chemical products; chemical adsorbents for extracting rare earth metal; zirconium chloride solutions; industrial chemicals; chemical compositions for the manufacture of alloys; chemical compositions for the manufacture of ceramics; ceramic compositions for sintering in the form of granules and powders used in manufacturing; ceramic powders used in manufacturing; silicon; rare earth metals; rare earths; yttrium; scandium; cerium; lanthanum; silicon oxides; silicates; aluminum oxides; cerium oxides; sodium metasilicates; sodium metasilicate solutions; zirconium compounds, namely, zircon sand