can copper mine tailings be profitable

From Tailings to Treasure? Miners Make ... - Advancing Mining

May 07, 2015 · Thickened tailings can be mixed with cement and used in construction or as backfill in underground mines. Now, some mining companies are figuring out ways to turn tailings to profits with novel reprocessing technologies to extract valuable metals from the waste.

Geochemistry of a copper mine tailings deposit in ...

Dec 10, 2018 · Within copper mining and extraction, the resulting tailings usually account for a high proportion (up to 99%) of the mined ore . Submarine tailing disposal is considered to be a viable option as the tailings are not visible on land, may be more stable on the ocean floor and are less likely to oxidize in the submarine environment.

Mine tailings: reprocess, recover & recycle – The ...

Sep 13, 2019 · Say a copper mine produced 1Mt of metal in 1999 at 90% recovery. The remaining 10% of copper, around 111kt, went to tailings. If the average copper price in 1999 was US$1,500/tonne then that 10% represented US$166.5 million of metal. Fast forward 20 years and at today’s price, US$5,842/tonne, if that material could be reprocessed and an extra ...

Tailings - Earthworks

Tailings dams are built gradually over time, as the mine produces more waste and hydro dams are constructed all at once. This means that safety oversight can change significantly if the mine changes operators, if the type of ore changes as the mine reaches deeper deposits, or if the mining company comes under economic pressure.

Retreatability analysis of the Musina copper mine tailings ...

Sep 16, 2020 · In this context, we have studied the tailings of the Musina copper mine in Musina town (Fig. 1), northern Limpopo Province. It is understood that industrial-scale copper mining started here in 1914 and the mine was closed in 1992. No proper rehabilitation was carried out as part of its decommissioning process.

Leaching copper tailings

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Mine tailings: reprocess, recover & recycle – The ...

Sep 13, 2019 · Say a copper mine produced 1Mt of metal in 1999 at 90% recovery. The remaining 10% of copper, around 111kt, went to tailings. If the average copper price in 1999 was US$1,500/tonne then that 10% represented US$166.5 million of metal. Fast forward 20 years and at today’s price, US$5,842/tonne, if that material could be reprocessed and an extra ...

The world’s top 10 highest-grade copper mines - MINING.COM

Feb 20, 2017 · Ore is hauled to the run of mine (ROM) stockpile while waste material is stockpiled on the surface or used on the walls of the tailings storage facility. With 3.5% copper grade in reserves ...

New approaches for extracting and recovering metals from ...

May 15, 2017 · Mineral tailings from two copper mines were bioleached under different conditions. • Greatest copper extraction was achieved at extremely low pH, at 45 °C and under oxidative/reductive conditions.. Copper present in tailings PLS was selectively precipitated as CuS by biogenic H 2 S.. Microbial communities were dominated by Sb. thermosulfidooxidans and Acidithiobacillus spp.

Mining mine waste for technology metals - Metal Tech News

May 06, 2020 · Goldcorp 2018 tailings and mine waste report. The tailing storage facility at Newmont's Peñasquito gold-silver mine in Mexico is roughly 2.5 miles long and in 2018, when this photo was taken, was nearly 280 feet tall. For size comparison, the Komatsu 930E haul truck circled in red is 24 feet tall and can haul 320 tons of ore or tailings.

New approaches for extracting and recovering metals from ...

Indeed, mine tailings can contain some amounts of Co and are already excavated and finely ground [4, 8,9]. From both economic and environmental perspectives, the repurposing of non-profitable and ...

(PDF) RECLAMATION AND CONTAINED DISPOSAL OF

To determine the most profitable mineralogical extraction process, an analysis of the tailings is required. ... Furthermore, large quantities of slimes (particles less than about 10 µm that do not settle well) present in mine tailings can cause coating of the copper minerals and lower the efficiency of flotation.

Mining & Tailings Flashcards | Quizlet

A surface mining technique that uses a large pit or hole in the ground to extract ores from large deposits. Placer Mining. Method of extracting mineral by the excavation of fluvial sediments and separation of valuable minerals by gravity, by selective flotation, or by chemical extraction. Slimes Tailings.

Task 4-D. Desktop Version of: Mine Tailings Reuse Proposed ...

The purpose of the earthen dam is for storage of the tailings. Copper mines can produce from 5,000 to over 100,000 tons of tailings per day, with particle sizes P. 80. of 150 ... • Be cost effective (does not need to be profitable to be cost effective) 2021 . Task 4-V. Mine Tailings Reuse –Virtual Contest.

New Tailings Reprocessing Technology ... - Advancing Mining

Oct 06, 2020 · Very small diamonds can be recovered from the residue of the original diamond-bearing ore, and the U.S. Geological Survey found that discarded mine tailings may yield significant amounts of rare earth elements. Several efforts are underway to extract gold and copper from tailings. Reprocessing mine tailings may also have environmental benefits.

Top 10 active copper mines in Canada | Mining & Energy

Mar 21, 2019 · The Gibraltar mine was originally built in 1972 and designed to process 36,000 tonnes of ore per day. Taseko Mines came along and purchased the site in 1999, and in 2004 it gave the project a $700 million restart, realizing its vast potential for increased copper production. Now, it is the second-largest open-pit copper mine in Canada and the ...

Mine Waste Transfer and Disposal Methods - Mine Tailings ...

Mine Tailings Tailings are finely ground rocks and other mineral waste as a result of mineral processing. Due to the way minerals are processed, tailings can contain concentrations of processing chemicals. This can make mine tailings an environmental concern, so

Silver tailings: Profitable waste? - MINING.COM

Mar 27, 2012 · Tailings are materials produced from mining such as milled rock and effluents. In many cases, massive quantities of these materials, regarded as

TENORM: Copper Mining and Production Wastes | US EPA

Jun 07, 2021 · Mining and extraction of copper by surface or underground methods can concentrate and expose radionuclides in the waste rock and tailings tailingsThe remaining portion of a metal-bearing ore after some or all of a metal, such as uranium, has been extracted.. Leaching and solvent extraction/electrowinning processes, as well as the practice of ...

Itronics Adjusts Business Plan to Monetize Mine Tailings ...

Jun 17, 2021 · The Company expects that this will become a profitable operation. ... but that could be modified to process copper mine tailings available in the Yerington Mining District. ...

Gold and Tailings: The Standard Mill at Bodie, California ...

The understanding metallurgical engineers possessed of the interrelationships of their plant’s effectiveness, the costs of mining, market prices, and other factors determining profitability may be seen in the following statement by Edward Dyer Peters, Jr., describing the attitude toward tailings exhibited by companies operating the copper ...

Itronics Adjusts Business Plan to Monetize Mine Tailings ...

Jun 17, 2021 · After carefully studying the results of testing performed on silver/gold mine tailings, Itronics has recognized that the Rock Kleen Technology is able to recover metals, minerals, and nutrient materials from tailings generated by different types of mines. These now include silver/gold mines, copper mines, and certain iron mines.

Death, Taxes and Mine Tailings - Itronics Inc. - A ...

Rock Kleen can assist silver/gold mining companies in taking the steps necessary toward the safe and responsible stewardship of mine tailings, while turning a profit; the great potential in this is a cleaner, safer, more socially responsible and profitable mining industry.

Precious Metals Reclamation Mining Company

Apache Mill Tailings USA, Inc. is a precious metals mining company specializing in gold, silver, copper and high value, rare earth minerals reclamation recovery. To maximize profits, accelerate project success and reduce risk, we work with above ground mine and ore mill tailings deposits. Reclaiming Rare Earth Riches.

Water - a major disrupter to copper supply | CRU

Oct 19, 2020 · The tailings dam has more than 200 million cubic metres of wastewater which could be used for processing. Los Bronces will begin trialling the project in 2020. Capital costs have been estimated at US$30–75 M. Recirculation, recycling and thickened tailings can be categorised into the same water saving category.

Top 10 active copper mines in Canada | Mining & Energy

Mar 21, 2019 · The Gibraltar mine was originally built in 1972 and designed to process 36,000 tonnes of ore per day. Taseko Mines came along and purchased the site in 1999, and in 2004 it gave the project a $700 million restart, realizing its vast potential for increased copper production. Now, it is the second-largest open-pit copper mine in Canada and the ...

Expande | BHP Tailings Challenge

Apr 09, 2020 · Tailings Challenge. BHP with the support of Fundacion Chile, through its open innovation program EXPANDE, has launched “BHP Tailings Challenge”, an initiative that seeks to promote the development of innovative solutions for repurposing copper tailings. The BHP Tailings Challenge is a global competition aimed at identifying the most ...

Mining and Water Pollution — Safe Drinking Water Foundation

Dec 17, 2016 · Therefore, mine waste has multiplied enormously. As mine technologies are developed to make it more profitable to mine low grade ore, even more waste will be generated in the future. Waste from the Mining Process. Ore is mineralized rock containing a valued metal such as gold or copper, or other mineral substance such as coal.

Bingham Canyon Mine - Wikipedia

The Bingham Canyon Mine, more commonly known as Kennecott Copper Mine among locals, is an open-pit mining operation extracting a large porphyry copper deposit southwest of Salt Lake City, Utah, in the Oquirrh Mountains.The mine is the largest man-made excavation, and deepest open-pit mine in the world, which is considered to have produced more copper than any other mine in history – more ...

(PDF) Testing pulsed electric fields in electroremediation ...

Experimental mine tailingsThe two mine tailings samples were collected from the El Teniente copper mine in the VI region of Chile -one sampled directly from the canal, which transports the tailings to the impoundment (fresh tailings) and another sampled from the Cauquenes tailings impoundment (aged tailings). This mine has been producing copper ...

Itronics Inc. (ITRO) – Rock Kleen - Death, Taxes and Mine ...

Sep 09, 2020 · Rock Kleen can assist silver/gold mining companies in taking the steps necessary toward the safe and responsible stewardship of mine tailings, while turning a profit; the great potential in this is a cleaner, safer, more socially responsible and profitable mining industry.