INFLUENCE OF SOLID PARTICLES IN PITCH ON THE PREPARATION AND BAKING OF THE CARBON BLOCKS.

Abstract

During heat soaking or carbonization of pitch the pyrolytic particles are pushed together by spherical bodies of mesophase and reinforce the plastic liquid which does not penetrate readily into the porous structure of the filler. This phenomenon has a significant influence on the properties (baked density, strength, resistivity) of the baked body. The pyrolytic solid particles influence also to a significant degree the viscosity of the green paste and therefore, the shaping operation (mixing with the petroleum coke and flowability of the green paste).