Microscopically study of coals from some Kerman mines
|Category||Economic geology & mineral exploration|
|Location||21th symposium on geosciences|
|Holding Date||21 May 2008|
Knowledge of the petrography and physical characteristics of a coal has a broad application in terms of recovery and processing of coal. Petrography data are fundamental to the understanding of the behavior of coals during mining, washing, blending and coking. The visible bands in coals which are called litho-types consist of four main groups namely; vitrain, kelarin, durian and fusains. The main litho-types of coals are macerals which are identified based on their texture and the degree of relative reflectance. In this research, coals from five different mines (i.e.Hashoni, Hamkar, Komsar, eastern Darbid Khoon and main Pabedena) from Kerman area were studied by the reflected microscopy method. The samples of these mines were taken from the feed to the Zarand coal preparation plant sent by the mines in question. After the preparation of polished samples, the amount of coal macerals for each mine was determined. The results revealed that Eastern Darbid Khoon mine had the highest level of vitranite and the lowest amount of fusianite which render the best coking properties for this type of coal. From the coking properties aspects, main Pabedena mine showed the poorest quality.