Author:Harris, JFDate:1974In the routine analysis of coal at the FRI, the determination of calcium and magnesium is done by an atomic absorption technique, and the determination of sodium and potassium is carried out using a flame emission technique.Read more
Author:Kunstmann, FH; Harris, JFDate:1966Apart from the major constituents of the ash of a coal, every coal contains a great number of trace elements. In many cases the suitability of a coal for certain purposes depends on the concentration of these trace elements in the coal. The ...Read more
Author:Savage, WHD; Kunstmann, FH; Harris, JFDate:1968Some of the possible variables in ashing were considered in determining the effects pf (A) depth of layer of coal and (B) SO2 passing over ashes and different rates of heating.Read more