Mineral Dressing and Mining

Beryl is a byproduct of other minerals occurring in pegmatites such as spodumene and lepi-dolite and is normally recovered through hand sorting. Commercial beryl contains roughly 10 wt.% BeO (i.e., 3.6 wL% Be metal), while bertrandite ore deposits are mined by an open-pit method, such as the US ore deposits of Delta in Utah, processed by Brush Wellman. 

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Flotation or froth flotation is a physicochemical property-based separation process. It is widely utilised in the area of mineral processing also known as ore dressing and mineral beneftciation for mineral concentration. In addition to the mining and metallurgical industries, flotation also finds appHcations in sewage treatment, water purification, bitumen recovery from tar sands, and coal desulfurization. Nearly one biUion tons of ore are treated by this process aimuaHy in the world. Phosphate rock, precious metals, lead, zinc, copper, molybdenum, and tin-containing ores as well as coal are treated routinely by this process some flotation plants treat 200,000 tons of ore per day (see Mineral recovery and processing). Various aspects of flotation theory and practice have been treated in books and reviews (1 9). 

Salamy, S. G. and Nixon, J. C., 1953. The application of electrochemical methods to flotation research. Recent Developments in Mineral Dressing, Institution of Mining and Metallurgy, London, 503 - 516... 

A wide variety of crushing and grinding equipment is available for the preparation of ore feeds to mineral dressing processes, and. similar stages can be used prior to leaching, if mineral dressing techniques themselves have not in fact preceded leaching. Jaw crushers are usually employed, of appropriate capacity and jaw size to reduce the mined ore to pieces of... 

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