Bulletin of the Geological Society of Malaysia, Volume 24, Oct.1989, pp. 67 – 78
Geological Survey Malaysia, P.O. Box 1015, Tiger Lane, 30820 lpoh, Perak.
Abstract: The wet process used by one of the local plants in processing illite is studied here. The crude clay is processed by passing through the sedimentation tanks, trommel, sluice box and the vibration screen to remove the coarse materials. The product obtained contains mainly illite and very small amount of kaolin, quartz and montmorillonite. The chemical composition, particle size distribution, brightness and other physical properties of the raw clay and the product were also determined. The product is mostly exported to Japan and used as a coating for welding rods. Illite can also be used as a white filler in the rubber products and possibly as a partial substitute for feldspar in certain ceramic applications.