how to remove sulfur and copper from iron ore

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  ResearchGate | Find and share research

  2023915 · Ore type CN, which contains high sulphur values (up to 4 %), will require a flotation step to remove pyrite from the concentrate prior to final magnetic separation and filtration while B ore type ...

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  doi: 10.1007/978-3-030-58069-8_2 - Springer

  2021622 · Since the free energy of formation of SO2 and SO3 is lower than the free energy of formation of many sul fides (CuS, Cu2S, NiS, FeS, PbS, ZnS, MnS, and so on under standard conditions), oxygen is conveniently used to remove sulfur from sul fides. Hence, the typical step, roasting (controlled oxidation) is employed to remove sulfur from …

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  A fresh approach to sulfide ores

  2017626 · A smelting workaround. The traditional route for extracting copper from sulfide ores is smelting. Yet there is a growing case for leaching sulfides from lower grade ore bodies and especially for those ore bodies containing problematic elements like arsenic, which make smelting less economical. Smelting is increasingly expensive because, in ...

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  Removal of Sulfur from Copper Smelting Slag by CO2

  2019215 · In the process of extracting iron from copper slag, the iron obtained by reduction is difficult to use because of the high content of copper and sulfur. In this paper, the thermodynamics of CO2 desulphurization of …

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  Copper Mining and Processing: Processing Copper Ores

  3  · The first steps of copper processing are the same for both ores: mining and transporting. Copper mining is usually performed using open-pit mining, in which a series of stepped benches are dug deeper and deeper into the earth over time. To remove the ore, boring machinery is used to drill holes into the hard rock, and explosives are inserted into …

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  Recovery of iron from a high-sulfur and low-grade iron ore

  2018410 · The present study was carried out to recover iron from a low cost, low-grade and high-sulfur iron ore without sulfurous gas emission. This method is based on coal-based direct reduction followed by magnetic separation method. Thermodynamic of reaction was evaluated by FactSage at a constant pressure of 1 atmosphere.

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  Processes for phosphorus removal from iron ore - a review

  The review extends to the phosphorus removal processes of this mineral to meet the specifications of the steel industry. Phosphorus is a contaminant that can be hard to remove, especially when one does not know its mode of occurrence in the ores. Phosphorus can be removed from iron ore by very different routes of treatment.

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  Finding the Most Efficient Way to Remove Residual Copper …

  2019227 · The supply of end-of-life steel scrap is growing, but residual copper reduces its value. Once copper attaches during hammer shredding, no commercial process beyond hand-picking exists to extract it, yet high-value flat products require less than 0.1 wt pct copper to avoid metallurgical problems. Various techniques for copper separation …

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