<P> Typical materials that are transferred using slurry pipelines include coal, copper, iron, and phosphate concentrates, limestone, lead, zinc, nickel, bauxite and oil sands . </P> <P> Slurry pipelines are also used to transport tailings from a mineral processing plant after the ore has been processed in order to dispose of the remaining rocks or clays . </P> <P> For oil sand plants, a mixture of oil sand and water may be pumped over a long distance to release the bitumen by ablation . These pipelines are also called hydrotransport pipelines . </P> <P> Early modern slurry pipelines include The Ohio' Consolidation' coal slurry pipeline (1957) and the Kensworth to Rugby limestone slurry pipeline (1965) </P>

What are pipeline slurry systems how do they function