Stability of the ash basicity in coal concentrates

Resumo

Ash basicity of coal concentrates and factory furnace charges is defined for the long period of time. Four groups of the coal concentrates that are discriminated by value and stability of ash basicity are identified. The basicity of furnace charges is shown to be sometimes nonadditive relative to basicities of components. This should be taken into consideration when basicity of components is used for corrections of composition of furnace charges.