Abstract Physical Separation process refers to all the mineral separation techniques that are based on exploiting the differences in specific physical properties of the mineral such as specific gravity, magnetic properties, thermal and electrical conductivity. Physical separation techniques are usually preferred for economic reasons. Physical separation techniques include; •Gravity separation process •Classifiers •Magnetic separation process •Electrical separation process •Separati...
Scope of Presentation 1. Definition of light metals/alloys. 2. Examples of light metals. 3. Characteristics/properties of light metals. 4. Trends in production and applications of light alloys. 5. Production of light metals
HISTORY Refractories have been used by humankind since earliest history. When humans first began to smelt metals and shape primitive knives, hunting weapons, and ornamental rings and jewelry, crude refractory materials were developed to facilitate the pyroprocessing of the ores. As refractory practice developed, materials evolved which were ever more durable, lasting longer and longer before replacement was necessary. DEFINITIONRefractory materials are materials, which have the capaci...