copper reprocessing dump tailings

New Tailings Reprocessing Technology Has Environmental Benefits

Several efforts are underway to extract gold and copper from tailings. Reprocessing mine tailings may also have environmental benefits. A recent project described in Mining.com is a series of experiments carried out by an international group of scientists to produce approximately 30 years of passive carbonation of mine tailings within four weeks.

Economic Potential for reprocessing Copper Mine Tailings in Chile

Four copper mine tailings in Chile were investigated for their elemental and mineral composition, in order to evaluate the potential for economic reprocessing. The sample material, taken for processing had Cu-contents between 0.1 and 0.5 %. Copper was abundant in various primary (mostly chalcopyrite) and secondary (cuprite, atacamite, b

Converting Tailings Dumps into Mineral Resources | Energy ...

Are tailings dumps a waste?

From Tailings to Treasure? Miners Make Money Reprocessing ...

Australian Broadcasting Company reports that Western Australian company Carbine Resources is investigating the technical viability of extracting an estimated million ounces of gold and 60,000 tons of copper left in the tailings at the old Mt. Morgan Mine site in central Queensland. Numerous other tailings projects are underway in Australia.

Metso presents a tailings solution fit for the future ...

Sep 20, 2019 · Reprocessing involves removing tailings from an existing dam, bringing them back to the concentrator, and using regrinding, thickening and filtration (or whatever processes are required) to...

Mining Waste Management: Reprocessing Tailings

Mining waste management: The importance of Tailings Reprocessing Tons of excavated material are extracted every day in mines around the world but only a small percentage contains the wanted mineral. This process is called ore grade .

How to generate value from tailings with reprocessing to be ...

Jun 02, 2020 · Due to growing mining volumes, global tailings generation was estimated to total ~3.2 bn tons for copper and ~1.8 bn tons for iron in 2018. It is well known by the mining industry that the cost of...

New approaches for extracting and recovering metals from mine ...

May 15, 2017 · This was the case with cobalt-rich tailings produced at a former copper mine in Kasese, Uganda, which were reprocessed by bioleaching decades after mining at the site ended, both to extract cobalt and to remove the environmental threat posed by the tailings deposits (Morin and D’Hugues, 2007).

Tailings - Wikipedia

These tailings contain large amounts of pyrite (FeS 2) and Iron(II) sulfide (FeS), which are rejected from the sought-after ores of copper and nickel, as well as coal. Although harmless underground, these minerals are reactive toward air in the presence of microorganisms, which if not properly managed lead to acid mine drainage .

(PDF) Old copper flotation tailings waste reprocessing

Possibility of technical reclamation of fl otation tailings dump "Valja Fundata" in the copper mine Majdanpek. In Proceedings Ecological truth 2008 (ed: M Trumic), pp 133-138 (UB-Technical faculty ...