c penetration 1 dmm is mixed in the cold state with a barite the mixture is supplied at various temperatures and pressed table i______________________________________pressing crude resistance of dried resistance oftemperature briquettes briquette kg 3 oxidized briquette obtained of bitumen kg 3 of bitumen______________________________________15 u00b0 c no50 u00b0 c no60 u00b0 c yes 47 16475 u00b0 c yes 78 232______________________________________ a 6 of a 180 220 bitumen emulsion containing 50 of bitumen is added to a barite having a water content of 6 the water content of the pasty mixture is 9 0 and the mixture is formed into good crude briquettes the procedure is resumed by bringing the water content of the barite to 9 the water content of the pasty mixture is 12 and complete clogging of the collar cells then occurs b 6 of a 180 220 bitumen emulsion containing 50 of bitumen is added to a mud originating from scrubbing the fumes from ld steel converters the water content of the pasty mixture is 17 and it is formed into good raw briquettes the procedure is resumed by bringing the water content of the mud to 15 the water content of the pasty mixture is 18 and complete clogging of the collar cells occurs the quality of the pasty mixture is improved by heating it to the highest possible temperature a the emulsion of example 1 b which has the same composition as the present one is mixed at ambient temperature with a barite and the mixture is heated to.