Iron ore tailings (IOTs) are a form of solid waste produced during the beneficiation process of iron ore concentrate. In this paper, iron recovery from IOTs was studied at different points during a process involving pre-concentration followed by direct reduction and magnetic separation. Then, slag-tailing concrete composite admixtures were prepared from …
The mining industry has seen several significant dam failures in recent years. Dam failures are associated with errors in design, implementation, operation, and monitoring (Azam, 2014, [2]).Dewatered stockpiling (dry stacking) is a safer alternative to tailings dams (Rico et al., 2008, [3]) for tailings disposal; however, this method has not yet been used in iron ore mines …
One of the critical challenges facing the mining sector is related to the prevention and mitigation of catastrophic incidents associated with its tailing dams. As mining tailings are very heterogeneous and field characterization is expensive and complex, geotechnical properties of these materials are largely unknown. The seismic cone penetration test (SCPTu) provides a …
Disposal of iron ore tailings (IOT) in dry stacks is increasingly common in Brazil. IOT are compacted in layers using drum rollers that cause compaction and vibration effects on the ground. Particle breakage is usually observed in granular materials when subjected to large static loads, as can occur depending on the stacking height achieved. This study investigates the …
Iron ore tailings obtained from the Jiuquan Iron and Steel Corporation in Gansu Province of China were used for the experiments. The iron ore tailings contained 21.51% Fe with a fine particle size of more than 75.00% passing 74 μm. There were many fully monomer dissociated gangue minerals and slimes present in the iron ore tailings.
Mining is an important industry, accounting for 6.9% of global GDP. However, global development promotes accelerated demand, resulting in the accumulation of hazardous waste in land, sea, and air environments. It reached 7 billion tonnes of mine tailings generated yearly worldwide, and 19 billion solid tailings will be accumulated by 2025. Adding to this, the …
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
As a leading global manufacturer of advanced sorting and magnet-based systems, we are continually developing new high-tech solutions to meet the challenges of our customers: when it is necessary to protect equipment from tramp iron in material recovery facilities or to process iron ore efficiently, we offer tailor-made magnet systems.
The haematite ore in South Africa is processed in a dry process to a HQ lump ore with 64 % iron content and a sintered fine ore with 63.5 % iron content. For fine ore beneficiation, wet processes are used. Capacity at the Minas Rio is to be increased from 26.5 Mta capacity to 28 Mta in the …
Iron ore tailings (IOTs) are byproducts of the iron mining industry that have gained significant attention in recent years due to their potential for comprehensive utilization. This study investigates how blending steel slag with IOTs (a siliceous raw material) instead of lime (a calcareous raw material) affects slurry ing properties, mechanical properties, and reaction …
This Research Topic focuses on progress and achievements of research in sustainable mine tailings (MTs) management. MTs are byproducts generated from mechanical and chemical processes to extract valuable elements from ore deposits. Typically, MTs are stored within tailings storage facilities (TSFs) or in the form of dry stacks.
Germany 100 t/d gold mine project; Albanian 300 t/d chrome ore dressing plant; Germany 120 t/d Scheelite, fluorite ore; ... In Current years, Tailings dry discharge is a gradual emerging new tailings treatment process. It means the tailing pulp from dressing plant through multi concentration, then use dewatering vibrating screen to treat and ...
However, after early ecological engineering of mine tailings, Li et al. found the legume Acacia auriculiformis could grow better in iron ore tailings eco-engineered with exogenous OM and pioneer plant colonisation. Furthermore, this legume formed nodules and promoted N 2 fixation in eco-engineered iron ore tailings. Compared with plants ...
Dewatered stockpiling (dry stacking) is a safer alternative to tailings dams (Rico et al., 2008, [3]) for tailings disposal; however, this method has not yet been used in iron ore mines in Brazil ...
Alternative tailings disposal technologies can be effective solutions to mining waste safety and environmental problems. The current decision-making processes for tailings disposal schemes lack consideration of environmental impacts. Based on a case study of an open-pit iron mine in northern China, this study adopted the life cycle assessment (LCA) …
Abstract: With a combination of highly publicised tailings dam failures and acute water shortages in some locations around the world, mining projects are facing more stringent requirements relating to safety, sustainability and environmental acceptance. This paper focuses on a conceptual study related to a dry stack tailings (DST) project for an iron ore operation in …
"The country is home to numerous dry gold tailings heaps that are re-mined using water jets, or hydraulic mining monitors (inspired by operations in England's Cornish Kaolin mines). "The monitor uses high-pressure water to erode the tailings from the dry heaps, washing the material downstream where it is collected in a reservoir.
Currently, approximately 1.4 billion tons per year of iron ore tailing wastes (IOT) are generated, mainly in Australia, Brazil, and China. This work describes the characterization and application ...
around the world, mining projects are facing more stringent requirements relating to safety, sustainability and environmental acceptance. This paper focuses on a conceptual study related to a dry stack tailings (DST) project for an iron ore operation in North America. The study consisted of two parts: firstly, the effect material
Tailings are a mixture of coarse-grained and fine-grained particles of ore, including crushed rock, processed water, extraction process additives, and a small amount of valuable minerals (Vick ...
Green tailings are high-purity, zero chemicals, 1.3% lithium oxide, and ultra-fine tailings generated by the Canadian miner's Greentech processing plant.
Mine tailings are the waste material that remains after the economic fraction has been extracted from the mineral ore. Tailings consist of a slurry of ground rock, ... Iron Ore Coal Phosphate Lead-Zinc Nickel Platinum Group Elements Bauxite Uranium Chromium Molybdenum Tin Vanadium Manganese Niobium Rare Earths Lithium Waste rock 72 000 000 000
Increasing population levels, growing economies, rapid urbanization and changes in consumption patterns have increased the demand for raw materials such as base and precious metals, leading to growing concerns regarding their availability and the global efficiency of the mine supply chain. Mine tailings, consisting of process effluents that are generated in a …
The final stage in iron ore processing is ironmaking, where the iron ore is transformed into molten iron through a process called reduction. The most common method of ironmaking is the blast furnace route. In a blast furnace, iron ore, coke (carbon), and fluxes (limestone or dolomite) are loaded into the furnace from the top.
If Karara's iron ore mine had chosen a wet tailings storage facility, the tailings pond would have been roughly 8 sq.km based on its 30-year mine life, according to FL. The operation is also in the Mid-West region of Western Australia, an area with scarce water reserves, so losing so much water to wet tailings would have been costly to ...
iron ore tailings; mining waste; iron oxide; technological application ... 562 million tons of mining tailings were produced, only in the state of Minas Gerais, Brazil. China generates 1.5 tons of iron ore tailings for each ton of iron ore ... (S. S. Vieira)), CAPES (PNPD, process number 88887.363108/2019-00 (S. S. Vieira)), INCT Midas (project ...
The experimental ore belongs to iron tailings, containing a considerable amount of weakly magnetic or non-magnetic iron oxide minerals, which have little impact on the selection of chalcopyrite. ... scarce and issues such as land resource occupation and environmental pollution caused by the accumulation of mining tailings pile up, it is ...
Adoption of Dry Stack Tailings (DST) for Sustainable Safety and Environmental Practices for Tailings Management. Dry Stack Tailings (DST) systems are particularly suited to mining operations operating in areas where water conservation is critical – they also provide significant safety and other environmental benefits too. Water is life.
Itaminas, founded in 1959, is an iron ore extraction company located in Minas Gerais, Brazil. The material left over after the production of concentrated sinter feed, high-silica sinter feed, hematite and pellet feed is known as tailings – and safe disposal of these materials is one of the mining industry's greatest environmental challenges.
Project Process. The project process:flotation tailing with filter press for dehydration. Process introduction. Tailings dry drainage is a new technology for tailings disposal in domestic, using a lot of thickeners for concentration, then through efficient dewatering equipment such as vibrating sieve dehydration processing, to get the slag,The slag can transport to the fixed place for …