A ball mill is a type of grinder used to grind and blend materials for use in mineral dressing . The ball mill can grind various ores and other materials either wet or dry. .. In situ leaching · Gold chlorination · Gold cyanidation · Bayer process.
In the field of extractive metallurgy, mineral processing, also known as ore dressing, is the . For instance, stamp mills were used in Samarkand as early as 973. . The process of panning and sifting for gold uses both of these methods. . gyratory crushers and cone crushers whereas rod mills and ball mills, closed circuited.