Mpempe akwụkwọ mpịakọta dị elu nke otu ụgbọala na-egweri bụ nke a haziri iji gwerie clinkers ciment, ikuku ịnweta, igwe nchara na ihe ndị ọzọ n'ime obere granules, iji gwerie mineral ndị dara (iron ores, manganese ore, ọla kọpa). , lead-zinc ores, vanadium ores na ndị ọzọ) na ịkwanye ihe ndị na-abụghị metallic mineral (coal gangues, feldspar, nephe-line, dolomite, limestone, quartz, wdg) n'ime ntụ ntụ.