... sols, silica gels, precipitated silicas, zeolites, aluminosilicates, magnesium silicates, synthetic clays, ceramics, and catalysts) - Detergents: (fabric washing powders, dishwasher detergents, industrial cleansing ... , coal dust briquettes, roofing tiles, bricks and ceramics, refractory cements, plasters and mortars, foundry molds and cores, and welding rods) - Surface Coatings: (TiO2 production ...