Leaching characteristics and kinetics of radioactive element uranium
The tantalum (Ta)/niobium (Nb) tailing is the tailing after smelting Ta/Nb ore. The tailing contains a certain amount of radioactive element uranium (U) and thorium (Th). U and …
WhatsApp: +86 18221755073
Assessment of radiological safety of abandoned tantalite …
Sixty soil samples in all were collected from the ten solid mineral mining sites investigated and six samples were collected as control samples from non-mining environment for analyses. The …
WhatsApp: +86 18221755073
Ghana
The country is also endowed with deposits of iron ore, limestone, columbite-tantalite, feldspar, quartz, and salt, and there are also minor deposits of ilmenite, magnetite, …
WhatsApp: +86 18221755073
Extract Tantalum & Niobium from Pegmatites
Tantalite Upgrading and Recovery. Development of a beneficiation process for tantalum and niobium recovery was initiated on Sample A. Although the mica and Ta2O5 …
WhatsApp: +86 18221755073
id/25/tantalite tailing sampel.md at main
Skip to content. Navigation Menu Toggle navigation
WhatsApp: +86 18221755073
Secondary Recovery of Columbite from Tailing Dump in …
chosen as the sample was further coned and quartered and this continued until a sample of 0.50 kg of the columbite tailing was obtained for sieve and chemical analyses. 2.2.3 Particle size …
WhatsApp: +86 18221755073
Hydrometallurgical assessment of oxides of Nb, Ta, Th …
bility, economic viability, tailing management, and other environmental factors all play a role in the lixiviant selection process for U and Th leaching [15–22]. ... a concentrated tantalite sample …
WhatsApp: +86 18221755073
XRD showing the characteristics peaks of Tantalite
The assessments of concentrations of thorium, uranium and the potassium in soil samples from tantalite mining sites have been carried out [6, 7].The mining and processing of tantalite …
WhatsApp: +86 18221755073
Progress of Five Spodumene Beneficiation Methods
For example, in 1959, the hand-selected beryl concentrate in Xinjiang, Hunan and other provinces and regions in my country reached more than 2,800 tons. In 1962, the world's beryl concentrate production was 7,400 …
WhatsApp: +86 18221755073
The mining sector of Liberia: current practices and
to produce a concentrate. Tailings, or waste material, are then deposited in a tailing storage facility (TSF). The gold opera-tionemploys the conventional carbon-in-leach (CIL) method,
WhatsApp: +86 18221755073
Quantitative Mineralogical Comparison …
Nb, Ta-rich minerals are columbite-(Mn) and tantalite-(Mn), as well as minor microlite and wodginite. The liberation in the product is high in the size fraction of less than 250 µm (51–52 wt ...
WhatsApp: +86 18221755073
Non-fluoride dissolution of tantalum and niobium oxides …
The tantalite sample obtained from the mine in Mozambique was prepared in a similar manner. ... However, the elution curves showed broad peaks with substantial tailing, …
WhatsApp: +86 18221755073
A Study of Engineering Characteristics of Columbite Tailings
Columbite tailing is obtained from processing of columbite ore. ... it is called tantalite. ... Owing to this, some studies have investigated mechanical behaviour of tailings for …
WhatsApp: +86 18221755073
Extract Tantalum & Niobium from Pegmatites
The tantalite assays of the surface samples are not representative of an economic resource. Literature surveys indicate that primary hardrock tantalum deposits generally have …
WhatsApp: +86 18221755073
A review on extractive metallurgy of tantalum and niobium
Colombo-tantalite (coltan) mineral is the largest natural resource of Ta that is found in ore deposits with appreciable reserves in central Africa, ... Characterization and alternative …
WhatsApp: +86 18221755073
Possible methodology for niobium, tantalum and scandium …
The magnetic susceptibility in this columbite sample and its mine tailings samples was much lower than the values obtained for tantalite samples investigated by Nete et al. …
WhatsApp: +86 18221755073
A review on extractive metallurgy of tantalum and niobium
On-going technological developments, especially in the field of microelectronics and communication have reflected in concomitant increase in the demand for strategic metals such …
WhatsApp: +86 18221755073
Multotec Zimbabwe
Stonefly Consulting (Pvt) Ltd, recognised as Multotec in Zimbabwe, is based in Harare and has represented Multotec since 1995.. Stonefly Consulting offers Multotec's full range of mineral …
WhatsApp: +86 18221755073
Occupational radiation exposures of artisans mining columbite-tantalite
Activity concentrations of 40K are below 10 Bqg-1 in all the samples but all the tantalite samples contain more than 1 Bqg-1 of 226Ra and 238U. ... non-tailing enriched soil …
WhatsApp: +86 18221755073
Hydrometallurgical assessment of oxides of Nb, Ta, Th and U …
Sequential processing of pegmatite ore is the best alternative approach to obtain higher grades of tantalite ore than primary processing of pegmatite ore (Table 1), thus, the …
WhatsApp: +86 18221755073
a Tantalite mining at Kenticha mine. L, lateritic …
The dose rates of an underground copper-zinc mine and the radioactivities of collected samples were measured using a surveymeter and a gamma-ray spectrometer.
WhatsApp: +86 18221755073
Primary beneficiation of tantalite using magnetic separation …
In this study, we determined the optimum conditions for the primary beneficiation (Fe removal with magnetic separation and radioactive material removal using acid leaching) of Mozambique …
WhatsApp: +86 18221755073
Radionuclides in tantalite ore and radiation exposure in
•However, the specific activity of 238 U in the tantalite concentrate was very high with 53,810±4570 Bq/kg. •while 232 Th was 515±73 Bq/kg, indicating a much higher association of …
WhatsApp: +86 18221755073
(PDF) Evaluation of Efficiency of Using Mechanized …
Tantalite mineralization is located at Kenticha, southern Ethiopia and hosted by granitic pegmatite. The pegmatite has intruded the low-grade Neoproterozoic basement that forms part of the …
WhatsApp: +86 18221755073
Geotechnical Properties of Mine Tailings and …
Mine tailings are the waste residue of the milling process that is used to extract metals from mined ores. The design of tailings storage facilities (TSF) will vary depending upon the characteristics …
WhatsApp: +86 18221755073
Possible methodology for niobium, tantalum and scandium …
One of the major objectives of this study was to identify a dissolution method, which afforded the total dissolution of the ferrocolumbite mineral sample (Sample A) as well as the …
WhatsApp: +86 18221755073
(PDF) The Efficiency of Mechanized Mineral …
Tailings particles were investigated based on the observed lithology to determine their distribution over the tailing dams, and a site-specific sampling approach and procedure were...
WhatsApp: +86 18221755073
Radionuclides in tantalite ore and radiation exposure in
Radionuclides in tantalite ore and radiation exposure in tantalite mining in Ethiopia ... •Ambient radiation measurement and sample collection •Analyses of samples •Conclusion •Notes and …
WhatsApp: +86 18221755073
Fine gravity concentration using the Bartles-Mozley concentrator
The performance of 350 TABLE I Summary of results for a variety of refractory materials treated on Bartles--Mozley con- centrators Sample Material Density Through- Assays …
WhatsApp: +86 18221755073
Geochemical and Mineralogical Study of Lithologies and …
Six samples of rock lithologies and tailings coming from various ore beneficiation steps at the Whabouchi spodumene mine site were studied in laboratory and on-site. Results ... relevance, …
WhatsApp: +86 18221755073