3-acrylamido-3-methylbutanoic acid copolymers as selective coal
Activated, coal-based carbon foam
Apparatus and process for steam treating carbonaceous material
Biodesulphurization process utilizing bacteria
Blended pitch/coal based carbon foams
Calcium impregnation of coal enriched in CO.sub.2 using high-pre
Carbon foam abrasives
Carbon foam abrasives
Carbon foam abrasives
Cellular coal products and processes
Cellular coal products and processes
Chemical beneficiation of coal
Chemical cleaning of coal by molten caustic leaching after pretr
Chemical comminution and deashing of low-rank coals
Coal ash modification and reduction
Coal beneficiation by gas agglomeration
Coal drying method and equipment, method for aging reformed coal
Coal preparation system
Coal processing method and apparatus
Coal reforming process and apparatus therefor