Exploration and mining evaluation system and price prediction of uranium resources

Chen, J.; Zhao, Yifei; Song, Qiancheng; Zhou, Zijie; Yang, Shu

doi:10.15407/mining12.01.085

Cited by 9 publications

(8 citation statements)

References 16 publications

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“…Lignosulfonates are obtained as an oil-like product during the hydrolysis of wood in pulp and paper mills. Lignosulfonates are used to reduce the viscosity of clay solutions [8,9]. Ammonium bifluoride (NH 4 F•HF+NH 4 F) (BFA) -exists as colorless crystals, easily and quickly soluble in water, well absorbing moisture (ammonium fluoride acid can not be stored in high humidity conditions), its acidity in terms of hydrofluoric acid is 25 %, the density of the reagent is 1.27 g/cm 3 .…”

Section: Selection Of Chemical Reagents For the Intensification Of Borehole Uranium Productionmentioning

confidence: 99%

Increasing of filtration characteristics of ore bodies in borehole uranium mining

et al. 2020

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There is a description of technology by borehole uranium mining in Kazakhstan. The factors which affect for reduction of filtration characteristics in productive reservoirs are studied in detail and described an effective method for increasing borehole uranium production. The processes that occur during borehole mining of uranium with the use of sulfuric acid as solvent, as well as the conditions and reasons for reducing the productivity of geotechnical wells during their operation are considered. The results of experimental work on the intensification of borehole uranium mining in complex mining and geological conditions are analyzed and discussed, comparative graphs of the content of uranium in the productive solution, the flow rate of wells, the degree of extraction and the volume of production before and after the experiments are constructed. The results of experimental work on the efficiency of borehole uranium production, the content of uranium in PS and the productivity of wells, with predominance of the chemical type of sedimentation, are positively evaluated. The optimal parameters for the intensification of borehole uranium production in complex mining and geological conditions are recommended, and method for using complex of multi-purpose chemical reagents in combination with traditional methods of well regeneration is developed.

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Section: Selection Of Chemical Reagents For the Intensification Of Borehole Uranium Productionmentioning

confidence: 99%

Increasing of filtration characteristics of ore bodies in borehole uranium mining

et al. 2020

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“…However, during the extraction of technological blocks using the wellbore method, there are cases where the extraction of uranium from the deposits slows down due to a decrease in wellbore permeability and a substantial reduction in uranium content in productive solutions (PS). The decrease in geotechnological extraction parameters is attributed to changes in filtration rates within the ore due to the impact of process solutions on the structure of the host rocks of the productive horizon, changes in pH levels [7,8], dilution of productive solutions with formation water, as well as precipitation of various minerals. This results in an extended period for the extraction of technological blocks, an increase in operational and capital costs, a reduction in the profitability of extraction and processing of productive solutions [9,10].…”

Section: Introductionmentioning

confidence: 99%

The Influence of the Physicochemical Characteristics of Ores on the Efficiency of Underground Well Leaching of Uranium Deposits in Kazakhstan

Togizov,

Kenzhetaev,

Temirkhanova

et al. 2024

Minerals

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The features of uranium mining on Kazakhstan’s enterprises have been examined, and uranium deposits located in the Syrdarya and Shu-Sarysu depressions have been described. Actual and projected data on the development of technological blocks in areas with complex geological structures have been analyzed and compared. Core samples were collected and, using X-ray diffraction analysis, quantitative and qualitative characteristics as well as mineral compositions of ores from various productive horizons of uranium deposits in the Syrdarya and Shu-Sarysu depressions were comparatively analyzed. It was determined that the ores in the Syrdarya depression are relatively homogeneous compared to those in the Shu-Sarysu depression, although in some places, clay minerals and gypsum are present, which hinder the uranium leaching processes. In the ores of the Shu-Sarysu depression, clay minerals that impede the uranium leaching processes are present in certain areas. Microscopic analysis of core material samples using a LEICA DM 2500 P microscope revealed particle sizes and shapes, as well as their distribution within the structure of host rocks in the productive horizon. Using X-ray diffraction analysis, mineral compositions of sediment-forming components during uranium well mining in the considered productive horizons were determined and comparatively analyzed. It was established that in the geotechnological wells of the Syrdarya depression, sediments of predominantly chemical origin, such as gypsum, are formed. However, in the geotechnological wells of the Shu-Sarysu depression, sediments of mechanical origin, consisting predominantly of quartz particles and clay minerals, are formed. Based on the obtained data, a method for intensifying underground uranium leaching in complex geological conditions has been developed, which involves dissolving sediment formations and increasing the oxidative–reductive potential of the leaching solution. The proposed and experimentally substantiated universal methodology for enhancing uranium well production involves the dissolution and prevention of precipitation using hydrofluoric acid solutions, as well as the oxidation of uranium dioxide with hydrogen peroxide.

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“…These methods are relatively low in efficiency and time consuming when dealing with complicated metal mineralogy. Therefore, the mineralogical information they provide is usually incomplete, fragmented, and lacks quantitative information [9][10][11][12], hindering a comprehensive understanding of the ores. Although automated mineralogy was initially used to focus on process mineralogy research, it is now widely applicable in variously complicated geological samples [13][14][15][16][17] and accumulating some specific mineral databases (such as in rare-earth deposits).…”

Section: Introductionmentioning

confidence: 99%

Automated Quantitative Characterization REE Ore Mineralogy from the Giant Bayan Obo Deposit, Inner Mongolia, China

et al. 2022

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Rare earth elements (REEs) are considered critical elements in modern society due to their irreplaceable role in new innovative and energy technologies. The giant carbonatite-related Bayan Obo deposit contributes most REE resources in the world’s market, while its origin is still unclear because of the complicated and diverse REE ore mineralogy and texture. Thescanning electron mircroscopy SEM)-based automated mineralogy allows for the numeric assessment of rocks and ores’ compositional and textural properties. Here, we use TIMA (TESCAN Integrated Mineral Analyzer) to quantitatively characterize REE ore mineralogy from the deep drill core within the H8 unit (“dolomite marble”) to better understand the deposit. The mineral composition, occurrence, and Ce elemental deportment of the borehole ores at different depths (i.e., 1107 m, 1246 m, 1406 m, 1546 m, and 1682 m) were obtained. The results show that the main types of ores in the investigated samples can be divided into banded REE-Fe ores, banded REE ores, disseminated REE-Fe ores, and veined REE ores. REE and gangue minerals vary significantly in abundance and occurrence. Monazite-(Ce) and bastnäsite-(Ce) are the primary REE host minerals, and both contribute the most to the REE budget. Other REE minerals, such as parisite-(Ce)/synchysite-(Ce), cerite-(Ce), huanghoite-(Ce)/cebaite-(Ce), and aeschynite-(Ce), are significant contributors. The gangue minerals generally include fluorite, barite, magnetite, pyrite, quartz, magnesio-arfvedsonite, and minerals of the biotite and apatite groups, among others. Combined with the newly published mineral-scale chronological and isotopic geochemical analyses, it is reasonable to conclude that the later hydrothermal fluids remobilized and redistributed the original Mesoproterozoic carbonatitic REE minerals and formed a high variable ore mineral assemblage. Furthermore, it is demonstrated that the mineralogical study using TIMA can provide accurate and reliable mineralogy data for the comprehensive interpretation of the complex REE ores, and extend our understanding of the deposit.

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Exploration and mining evaluation system and price prediction of uranium resources

Cited by 9 publications

References 16 publications

Increasing of filtration characteristics of ore bodies in borehole uranium mining

Increasing of filtration characteristics of ore bodies in borehole uranium mining

The Influence of the Physicochemical Characteristics of Ores on the Efficiency of Underground Well Leaching of Uranium Deposits in Kazakhstan

Automated Quantitative Characterization REE Ore Mineralogy from the Giant Bayan Obo Deposit, Inner Mongolia, China

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