This paper deals first with the flotability characteristics of petrograpbic constituents in ShelffU coals. Some differences, such as elemental composition, asia level, oxygen contaibing functional groups, hydropbilicity and zeta potential, between vitrain (vitlibite rich lithotype) and fusain (inertinite rich lithotype) were established. These differences give rise to the possibility of separating mul preparing single constituents by lnemls of the flotation method. Tests verified that when appropriate reagents, such as frothers, collectors, etc., are used during flotation, it is possible to separate vitribite from coals. The results showed that vitribite in the floats cml reach more thin1 80% if accumulative yields of flotation for sludge are maintained in some degree, such as below 69%.