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    Nov 11, 2013· Belaz 75710, with payload capacity of 496t, is the biggest mining dump truck in the world. The ultra-heavy dump truck was launched by the Belarusian Company Belaz in October 2013 under an order from a Russian mining company. Sales of Belaz 75710 trucks are scheduled to start in 2014. The truck is 20.6m-long, 8.16m-high and 9.87m-wide.

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    Pressure leaching, high pressure leaching and pressure oxidation are conducted in an autoclave at carefully controlled temperatures and pressures. These technologies involve a large capital investment and higher operating costs, but yield high recovery rates from difficult, complex or refractory ores. Advantages and limitations include:

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  • Copper Standards - ASTM International

    These copper standards are helpful in guiding metallurgical laboratories and refineries, product manufacturers, and other end-users of copper and its alloys in their proper processing and application procedures to ensure their quality towards safe use. List of copper standards developed by ASTM:


    The Southern African Institute of Mining and Metallurgy 6th Southern African Base Metals Conference 2011 F P van der Meer and W Maphosa _____ Page 389 HIGH PRESSURE GRINDING MOVING AHEAD IN COPPER, IRON, AND GOLD PROCESSING F P van der Meer Humboldt Wedag , Cologne, Germany W Maphosa Weir Minerals Africa (Pty) Ltd ABSTRACT

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    David Duckworth of consulting company Saint Barbara notes that “the issue of high-arsenic (high-As) copper concentrates has been highlighted recently with the start-up of a number of new projects producing this material. “Copper concentrates can be divided into clean or complex types,” he writes in the company’s latest newsletter.

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    Only six of the top 20 producers are primary silver miners. The polymetallic ore deposits from which silver are recovered account for more than two-thirds of the world's silver resources.

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