Mining Monazite In Tailings

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Geology of the Steenkampskraal Monazite Deposit (SMD)

The monazite deposit occurs within the Bushmanland Terrane of the Namaqua-Natal Metamorphic Province of Southern Africa and forms part of an intrusive suite emplaced during the 1 100Ma aged Namaqua orogeny and associated regional metamorphic event The emplacement of the narrow (0 02m to 10m thick) monazite vein is structurally controlled and occurs along a strike length of 1 200m to a

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Uranium Recovery from Waste Materials

Prbram uranium mine waste dump project (Czech Republic) Mailuu-Suu tailings reprocessing project (Kyrgyzstan) Tajikistan uranium mill tailings reprocessing project Copper tailings UCIL proposes uranium recovery from copper tailings in Jharkhand (India) Monazite tailings Issues India eyes thorium and uranium recovery from monazite tailings

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Past experience of environmental health and safety issues

to be returned to the beach in the tailings or stockpiled The publically owned Indian Rare Earths Limited (IREL) is the only company in India with a licence to mine and process monazite (Government of India Department of Atomic Energy Public Awareness Division 2012) IREL produce Th

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1 James Hedrick Rare Earths from Mineral Commodity

A-21 - A-22 The rare earth elements are comprised of scandium yttrium and 15 lanthanide elements of which cerium lanthanum and neodymium are the most abundant While rare earth elements are found in several minerals almost all production comes from

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Recovery of critical materials from mine tailings A

May 01 2019Tailings from past and present mining activities are important sources of REEs and other critical raw materials e g tungsten and phosphate The possibility of processing such tailings was thoroughly investigated in the ENVIREE European Project (2015–2018)

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Tailings

Tailings are the materials left over after the process of separating the valuable fraction from the uneconomic fraction of an ore Tailings are distinct from overburden which is the waste rock or other material that overlies an ore or mineral body and is displaced during mining without being processed

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UNCONVENTIONAL URANIUM RESOURCES Challenges and

The physical and chemical processing of monazite is well-known and can be handled The current perceived challenge to mining monazite is the presence of Th (and U) in the structure If the thorium disposal problem can be solved economically monazite mining can provide all of the necessary light and medium REEs to the marketplace without

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Constraining the Economic Potential of By

Apr 15 2019The highest rare earth oxide content concentrations (1 75 wt % total rare earth oxides) and the greatest potential for REE processing are reported for the final flotation tailings stream To place tentative economic constraints on REE recovery from the tailings material an analogy to the Browns Range deposit in Australia is drawn

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'India not realising potential of rare earth industry

Oct 19 2016And this is the prime issue with the rare earth mining industry Monazite has as one of its constituents thorium and uranium though in small quantities these are radioactive elements making monazite a restricted 'atomic' mineral There is a perception here in India that monazite is an atomic mineral It is actually not

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Allowing private sector to mine monazite would boost India

The miner has to blend the monazite tailings with waste sand and refill the mine veins BMPA president N Pauldurai Perumal said that without permitting private miners/companies India cannot increase its production of rare earths

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Monazite

Monazite is an important ore for thorium lanthanum and cerium It is often found in placer deposits India Madagascar and South Africa have large deposits of monazite sands The deposits in India are particularly rich in monazite Monazite is radioactive due to the presence of thorium

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Tall tales and tailings

Tall tales and tailings - the truth about Rio Tinto's rare earth mine in Madagascar Thorium is a principle radioactive component of Monazite and can leach from tailings into water bodies and farmlands Such NORM-bearing leachate can be taken up by fish making them radioactively contaminated and affect the public who buy and eat the fish

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mining monazite in tailings

mining monazite in tailings - mamacitamoneyspellscoza Monazite Sand Milling mining monazite in tailings - windshieldspecialistcoin Past experience of environmental health and safety In Brazil monazite sand with a ThO 2 indicated that the amount of tailings from the iron and rare earth

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Private miners to develop India's monazite tailings

Private miners to develop India's monazite tailings The opening-up of monazite tailings to private miners would ensure a firm supply line to Orissa Sands Complex (OSC) operated by IREL and to Toyutsu Rare Earths India Private Limited (TREI) IREL operated four units at OSC in the eastern Indian province of Orissa

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Hydrometallurgical Recovery of Rare Earth Elements from

The REEs in the tailings have been traced to two minerals monazite and apatite Monazite is REE phosphate REE(PO 4) and is one of the primary ores from which REEs are extracted in primary metallurgical industry It is primarily known for its high content of light REEs (e g Ce and La)

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Leaching of rare earths elements (REE) past and present

Monazite can contain up to 70% REE primarily Ce and La as well as significant amounts of Nd Pr and Sm The Th content is also quite high ranging from 4 to 12% which is a concern in monazite processing As shown in Table 1 the alkaline method is currently one of the main leaching technologies for monazite

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Chemistry of Selected Core Samples Concentrate Tailings

largest of the tailings lakes on the mine property (fig 2 and 3) The three water samples were not filtered Aliquots for cation determinations were acidified with ultrapure nitric acid Two samples of crushed rock from the waste and tailings pile and one from the tailings lake were given to the USGS by Wings

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Environmental Risks of Mining

Once radionuclides are in an ecosystem they accumulate in plants where the higher concentrations are ingested and ascend the levels of the food chain (Paul Campbell 2011) Radioactive contamination has become such a problem that monazite mining has been banned by China and the United States has imposed strict regulations effectively accomplishing the same (Schuler Buchert Liu Stefanie

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Boom in Mining Rare Earths Poses Mounting Toxic Risks

Jan 28 2013Boom in Mining Rare Earths Poses Mounting Toxic Risks The mining of rare earth metals used in everything from smart phones to wind turbines has long been dominated by China But as mining of these key elements spreads to countries like Malaysia and Brazil scientists warn of the dangers of the toxic and radioactive waste generated by the mines and processing plants

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Monazite Mineral information data and localities

Unclassified members of the Monazite Group See also Monazite-(Ce) Monazite-(La) Monazite-(Nd) Monazite-(Sm) Unnamed (Gd-dominant monazite) The name monazite without a elemental suffix was the accepted name for all material in this group regardless of

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Rare earth mining in China the bleak social and

Mar 20 2014Rare earth mining in China the bleak social and environmental costs Most of the rare earths processed by Baotou are extracted in Bayan Obo a mining district in the Gobi desert 120km north of the city Its largest open-pit mine is 1 000 metres deep and spans 48 sq km in satellite images by Nasa released in 2012

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Management of radiation hazards from mining of mineral

minerals sands mining results in short-term alteration of ecosystems there is a particular concern that thorium the principal radioactive component of monazite may over time leach from tailings dumps into local water supply systems Also as elevated radiation levels are likely to occur at areas of spillage adjacent to monazite

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Industry Regulation fact sheet Mineral sands mining or

monazite staurolite kyanite or garnet and process tailings from HMC onsite disposal of waste generated from offsite mineral sands processing (not including downstream chemical manufacturing) and disposal of sand clay and ore processing tailings either separately or together into specific containment structures or into mined voids

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High Efficient Gold tailings separating Gravity Separation

High Efficient Gold Tailings Separating Gravity Separation Monazite Spiral Chute Find Complete Details about High Efficient Gold Tailings Separating Gravity Separation Monazite Spiral Chute High Efficient Gravity Separation Monazite Spiral Chute Gravity Separation Gold Tailings Separating from Mineral Separator Supplier or Manufacturer-Zhengzhou Yufeng Heavy Machinery Co Ltd

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Constraining the Economic Potential of By

Apr 15 2019The highest rare earth oxide content concentrations (1 75 wt % total rare earth oxides) and the greatest potential for REE processing are reported for the final flotation tailings stream To place tentative economic constraints on REE recovery from the tailings material an analogy to the Browns Range deposit in Australia is drawn

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Iluka Website

Mineral sands as with other minerals such as clay soils rocks and many ores contain levels of natural occurring radioactive material (NORM) This is associated with low level naturally occurring uranium and thorium contained within the grains of the minerals monazite xenotime zircon and sometimes ilmenites

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Industry Regulation fact sheet Mineral sands mining or

monazite staurolite kyanite or garnet and process tailings from HMC onsite disposal of waste generated from offsite mineral sands processing (not including downstream chemical manufacturing) and disposal of sand clay and ore processing tailings either separately or together into specific containment structures or into mined voids

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Mine Waste and Tailings Stewardship Conference 2020

The Mine Waste and Tailings Conference 2020 aims to be the benchmark for sharing knowledge and experience on mine waste and tailings management sustainable practice and closure in Australia and the rest of the world The mining industry faces sustained threats to its financial and social licence to operate as the demand for minerals increases

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Tailings Management Protocol

The Towards Sustainable Mining (TSM) Tailings Management Protocol first released in 2004 and revised in 2011 is used to measure tailings management performance with five performance indicators focused on Having a corporate tailings management policy and commitment Developing and implementing site-specific tailings management systems and emergency preparedness measures

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MONAZITE DEPOSITS OF THE SOUTHEASTERN ATLANTIC

the monazite-bearing granitic intrusives are quartz monzonite or closely related rocks The mean tenor of monazite in bedrock is about 0 006 percent No search has yet been made for workable placers in these belts beyond the original sites of mining Monazite derived from bedrock sources in the piedmont has been found in small quantities in all of

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IMPACT

approximately 7000 acres of which 1000-1200 acres were used for mining operations involving monazite Other areas remained undisturbed The plant and production areas including mill tailings containing monazite (produced as a result of previous operations) occupied an estimated 500 acres

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