Carbon Compounds and Carbon or Graphite Bodies for Use in Metallurgy-Namely, Calcined Petroleum Coke, Calcined Coal Particles, and Graphite Particles for Regulating the Carbon Content of Metals; Coke Particles Containing Titanium or Titanium Compounds and Silicon Carbide Particles for Regulating the Titanium or Silicon Content of Metals; Graphite Mold Bodies for Casting Metals; and Bulk Mixtures of Carbon Particles and Pitch for Use as Electrodes in the Production of Silicon Carbide and Calcium Carbide