Coal Preparation

Coal straight from the ground, known as run of-mine (ROM) coal, often contains unwanted impurities such as rock and dirt and comes in a mixture of different-sized fragments. However, coal users need coal of a consistent quality.

Coal preparation—also known as coal beneficiation or coal washing—refers to the treatment of ROM coal to ensure a consistent quality and to enhance its suitability for particular users. The treatment depends on the properties of the coal and its intended use. It may require only simple crushing or it may need to go through a complex treatment process to reduce impurities.