Experimental Investigation on Sulfur Extraction from Coal Coking Waste

During coal coking process a great deal of sulfurs are produced and are discarded to surroundings, which makes a lot of lands to be occupied and puts the environment to be polluted. In order to find multi-win production mode of coal coking for resources, surroundings and societies, carbon disulfide as an extracting agent was applied to extract sulfur from sulfur cake in this study. Final laboratory technological condition was that more than 98% sulfur yield could be gotten when the granularity of raw sulfur powder, liquid-solid ratio, extraction temperature, stirring velocity and stirring time respectively were 200 mesh, 3:1 g/g, 40°C, 200rpm and 30 min.