CN101549322A Process of using sulphur leadzinc
The objective of the invention is to provide a process of using sulphur lead-zinc containing tailings to prepare sulphur iron ore concentrate, using magnet-floating combination process or magnet-gravity-floating combination process to produce sulphur iron ore concentrate containing more than 90% sulphur and iron, using the sulphur iron ore concentrate to produce sulphuric acid, getting 98% ...
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About 450 million metric tons 500 million tons per year 1 of mill tailings are generated from copper, iron, taconite, lead, and zinc ore concentration processes and uranium refining, as well as other ores, such as barite, feldspar, gold, molybdenum, nickel, and silver.
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Nov 10, 2019 Before the LCA, it is indispensable to determine the functional unit and system boundary. Functional unit provides a quantified reference for the related inputs and outputs of an investigated system (ISO 14040, 2006).To study the life cycle impact of each product produced by the lead-zinc mine, one tonne lead concentrate, one tonne zinc concentrate, one tonne lead-zinc bulk concentrate and
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Dec 17, 2016 The ore is then crushed into finely ground tailings for processing with various chemicals and separating processes to extract the final product. In Canada on average for every tonne of copper extracted 99 tonnes of waste material (made up of soil, waste rock and the finely ground tailings) must also be removed.
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Jan 23, 2015 The authors study potential utilization of oil tailings of a lead-zinc processing plant. Conversion of sulfides into marketable selective concentrates is carried out in two stages sulfide product is extracted from tailings, first, and processed, second, jointly with current ore material, using the accepted technology, or separately, by jet flotation. Sulfides are extracted from tailings using ...
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