sulfur pellet, process for the manufacture of sulfur pellets, and process for the manufacture of an asphalt pavement mixture comprising sulfur

摘要

sulfur pellet, process for the manufacture of sulfur pellets, and process for the manufacture of an asphalt pavement mixture comprising sulfur. The invention provides a sulfur pellet comprising at least one h 2 ~ s suppressor. The invention further provides a process for the manufacture of sulfur pellets comprising at least one H2S suppressor, comprising the steps of: (a) mixing elemental sulfur, one or more H2S suppressors and optionally a charge. at the blending unit to obtain a mixture, (b) shaping and / or pelletizing the mixture obtained in step (a) into a pelletizing unit to obtain sulfur pellets comprising a h 2 ~ s suppressor. The invention provides a process for the manufacture of an asphalt pavement mixture comprising the steps of: (i) preheating bitumen to a temperature in the range between 140 and 180 ° C, (ii) preheating the aggregate to a temperature in the range between 140 and 180 ° (c) (iii) mixing the hot bitumen with the hot aggregate in a mixing unit, wherein the sulfur pellets comprising a h 2 ~ s suppressor according to the invention. are added in at least one of steps (i), (ii) or (iii). The invention also provides for the use of sulfur-containing asphalt pavement mix comprising a h 2 ~ s suppressor in road paving.