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Diversified miner Rio Tinto copper miner Oz Minerals and Swedish metals major Boliden will partner on an initiative to manage tailings Under the umbrella of the Think Act Differently TAD
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1 Introduction Mine tailings are waste obtained after the processing of some minerals to acquire one or more elements of interest They are composed of a mixture of heavy metals water sand and fine grained solid material and generally are deposited in ponds without further treatment Babel et al 2024 Santibañez et al 2024 L Wang et al 2024
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The ability to pump tailings from the mine to the pond depends on the composition and viscosity of the tailings To determine if tailings can be pumped with the existing pumping equipment the viscosity and the yield stress need to be measured In this way the effectiveness of different processes or process additives can be observed e
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Instead of being simply dumped mine tailings can be re mined Through this process characterisation of these wastes will allow for tailor made environmentally conscientious management
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Tailings consist of ground rock and process effluents that are generated in a mine processing plant Mechanical and chemical processes are used to extract the desired product from the run of the mine ore and produce a waste stream known as tailings
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The process at Millsell involves six stages the first of which is the obviously the mining that produces the tailings The mines in upgrading the chromite content of their ore produce a tailings stream that contains the majority of the PGMs of the ROM chrome ores It is these chrome ores with elevated levels of PGMs that are treated
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Abstract The profile of a delta formed by fine grained mineral processing wastes disposed of as aqueous slurries by subaerial deposition from a pipeline has a significant bearing on the volume
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The company s tailings management solutions can offer producers a way to separate the solids from the liquids resulting in a dry drip free easy to handle solid product that can be sold as well as clean process water that can be reintroduced into the production process By implementing one or more of McLanahan s tailings management
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The tailings are discharged from a mechanised floating head that is controlled by two railtrack mounted trucks on either side of the impoundment The TMF is fully lined on the upstream embankment face with a composite linear low density polyethylene LLDPE liner and a geosynthetic clay liner GCL
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Reprocessing mine tailings provides for new opportunities in technological advancements as more resources could be obtained from previously used sites The tin industry for example has seen an increase in demand over the last 30 years with an expected growth of 2% per year for the next 5 10 years
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Generally in mineral processing minerals are recovered from their ores using several operations including comminution sizing concentration and dewatering The term mineral processing can be applied to a wide array of industries such as gold coal nickel aluminium oil sands phosphate potash copper iron ore and many more
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Tailings dry discharge It is a new process using dewatering type cyclone high frequency dewatering screen and high efficiency deep cone thickener It can reduce the water content in tailings to less than 15% and save costs which can effectively avoid environmental pollution 3 Filling the mined out areas
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The company s commitment to improving the sustainability of tailings management was in part an acknowledgment of the practice s wide reach inside and outside the company It touches the communities [where Newmont works] Casper says It touches the environment it touches the rest of the business [And] occasionally we may need to
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The foremost benefit of dewatering tailings is the reduction of water that needs to be transported from a process plant to a tailings storage facility TSF Reduced water content means tailings slurry volume is decreased allowing for smaller pipelines and pumping equipment to be used This can also minimise power requirements
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Tailings reprocessing technology means higher demands on mining enterprise especially in tailings test technological innovation energy saving and capital investment For the majority of mining companies they can t afford these huge capital investment and strict technical requirements Xinhai Tailings Reprocessing
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Miners Make Money DRD Gold extracted 33 600 ounces of gold worth nearly US$40 million in the last quarter of 2024 Mintails a mine tailings processor has developed new to process 350 000 tons of slimes from its extensive tailings resources It expects to recover 58 kg of gold per month and has enough slimes to last until 2024
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As the need for dry stack tailings has increased so has the need for larger and larger dewatering equipment to accommodate the potentially huge volumes of tailings slurry Some large mining operations process over 100 000 dry tonnes of flotation tailings per day
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When processing mine tailings there is no mining stage so the values were adapted Adapted values of energy and water consumption to obtain RE oxides from waste material are included in the supplementary material Primary ores of REEs are usually treated with alkaline pressure leaching or sulfuric acid roasting However mine tailings are a
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Based on Larox FFP or FPS filtration technology the Metso Outotec filtration plant unit is specifically designed for high volume tailings processing leading to savings in operational and maintenance costs The pre enginereed module can always be tailored according to the specific requirements of the project Filter type Filtration area min m2
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DRD Gold extracted 33 600 ounces of gold worth nearly US$40 million in the last quarter of 2024 Mintails a mine tailings processor has developed new technology to process 350 000 tons of slimes from its extensive tailings resources It expects to recover 58 kg of gold per month and has enough slimes to last until 2024
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Profile Peko Bull Pty Ltd PekoBull is currently seeking expressions of interest for investment in the Peko Tailings Retreatment Project the Project It is proposed to build a processing facility and then establish a 5 7 year tailings retreatment operation The recoverable value of the metal content in the tailings is over A$700M
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In mining the term tailings refers to fine grained residues in the form of sludges They are created during the processing of ores and minerals The resulting waste water or overburden sludge is partly contaminated with chemicals Tailings are a risk to the environment when stored in sludge ponds
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Mine tailings are the ore waste of mines and are typically a mud like material Worldwide the storage and handling of tailings is a major environmental issue Many tailings are toxic and must be kept perpetualy isolated from the environment Scale of tailings production is immense since metal extraction is usually only ounces or pounds for
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The methods of displacing or transporting mine tailings generally fall into two categories The first method involves wetting the tailings into a slurry mixture that can be pumped using a slurry pump or gravity to move it down a pipeline system into a tailings pond Pumping using centrifugal style slurry pumps are still the most common type of
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Collecting cores as preserved as possible is preferable to other approaches as vertical variations can be sharp reflecting past mining or processing decisions Sonic sampling is probably the most efficient answer to the challenge of investigating a few millions of tons of old tailings It process all is still the best for small deposits
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Nov 9 2024 Messages 2 Nov 9 2024 #1 I am trying to get some information/advice in regard to a tailing processing project The current issue is the the concentrate that is produced from the tailing is at 20g/ton They need it to be at 30g/ton in order to have a buyer They say they are capturing the gold at 200 mesh but losing at 100 mesh
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The tailings dry stacking is a new dewatering process using patented equipment such as dehydration cyclones high efficiency high frequency dewatering screens and high efficiency deep cone thickeners It can reduce the water content in the tailings to less than 15% save costs and can effectively avoid environmental pollution 3
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Halyard s engineers lowered the water level in the dam We then designed a machine to dig up the tailings for processing We dry the tailings mix them again with water and by means of gravity separation and flotation we extract barite and residual sulfide material Finally we take the processed tailings and safely redeposit them in a
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A method for processing mine tailings includes introducing a volume of dried densified biomass products to mine tailings to produce a conglomerate mixture having substantially no liquid US20120245401A1 Processing mine tailings Google Patents Processing mine tailings Download PDF Info Publication number
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The past 10 years have seen a string of high profile tailings dam failures including Mount Polley Samarco and most recently at Brumadinho in January 2024 The last event in particular prompted stakeholders at all levels to take greater notice of mining practices good and bad
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