Author:Copeman, JH; Von Wolff, WTEDate:1965Because of the effect of inorganic impurities on the utilization of coal, it was decided to carry out a survey on the minerals present in production samples from different mines.Read more
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