ABSTRACT

I. Introduction 264

II. Coal-Tar Pitch Preparation 266

III. Coal-Tar Pitch Composition 269 A. Bulk Characterization of Pitches 270 B. Features of Coal-Tar Pitch Composition 271 C. Pitch Fractionation 273 D. Primary Quinoline Insolubles 280

IV. Coal-Tar Pitch Pyrolysis Behavior 281 A. Principles of Pitch Carbonization 281 B. Carbonization of Model Aromatic Compounds 283 C. Carbonization of Pitch Fractions 287 D. Carbonization of Coal-Tar Pitches 293

V. Modification of Coal-Tar Pitches for High-Density Carbons 309 A. Thermally Treated Coal-Tar Pitches 310 B. Air-Blown Coal-Tar Pitches 310 C. Comparative Study of Thermally Treated Pitches and

Air-Blown Pitches 313