Process for treating coal tar or coal tar pitch

Processes for the manufacture of enriched pitches and carbon fib

Production of carbon artifact precursors

Production of hard asphalts by ultrafiltration of vacuum residua

Purifying filter-clogging coal tar formed from low-temperature c

Recovery and transportation of heavy crude oils

Recovery of asphalt shingle components by solvent extraction

Reduced puffing needle coke from coal tar

Reduced puffing needle coke from coal tar distillate

Regenerative thermal oxidation system for treating asphalt...

Removal of quinoline insolubles from coal derived fractions

Removal of solid contaminants from tar and tar-like products

Self-stabilizing pitch for carbon fiber manufacture

Separation of asphaltic materials from heptane soluble component

Separation of tars, oils and inorganic constituents from oil...

Separation of true asphaltenes from microcrystalline waxes

Solvated mesophase pitches

Solvated mesophase pitches

Solvent deasphalting

Spinning pitch for carbon fibers and process for its production