Bial Leaching Of Uranium Ore Intechopen

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Microbial Leaching of Uranium Ore

Microbial Leaching of Uranium Ore Hadi Hamidian Islamic Azad University, Qaemshahr Branch Iran 1. Introduction This chapter is a review of the microbiological leaching of uranium ores. Microbiological

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Microbiological leaching of uranium ores | Mining

Microbiological leaching has been used as an alternative approach to conventional hydrometallurgical methods of uranium extraction. In the microbiological leaching process, iron …

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Heap bioleaching of uranium from low-grade granite-type …

We evaluated uranium bioleaching from low-grade, granite-type uranium ore using mixed acidophilic microbes from uranium mine leachate.

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Uranium in Poland: Resources and Recovery from Low-Grade Ores

The presented studies deal with an assessment of the possibility of uranium recovery from the low-grade uranium resources in Poland. Uranium was leached from the ground uranium ores with efficiencies in 81– range that …

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Chapter 4 Grade Ores

leaching solution used. In the next step, the post-leaching solution was treated by the sol-vent extraction or ion exchange chromatography to separate uranium from other metals present in the ore. The novel routes of leaching by using membrane methods were exam-

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Bioleaching of uranium from low-grade uranium ore with a …

Aiming at recovery of uranium (U) from low-grade uranium ore with a high fluorine content, column bioleaching of uranium extraction with an indigenous mesophilic consortium was studied. The performance of the bacterial community and the effect of chemical parameters on column bioleaching of uranium were investigated.

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Heap bioleaching of uranium from low-grade granite-type ore …

We evaluated uranium bioleaching from low-grade, granite-type uranium ore using mixed acidophilic microbes from uranium mine leachate.

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A study of the bioleaching of a Spanish uranium ore. Part I: A …

That is to say, the bacterial leaching of uranium ores is a two-step process: the bacterial leaching of pyrite and the leaching of the uranium ore with the resulting metabolic …

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Sulfur enhancement effects for uranium bioleaching in …

The bulk or granular ores was subjected in the column bioleaching reactors, which is a typical dynamic process of liquid-solid multiphase reaction. If the uranium ore particles are regarded as spherical, the leaching kinetics of uranium ore …

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Microbial Leaching of Uranium Ore

The uranium ore was st acked in heaps, similar to dump leaching of low-grade copper ore, and leached using an acid ic ferric sulfate solution at the Elliot Lake Mine, Ontario, Canada.

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Microbial Leaching of Uranium Ore

Publishing on IntechOpen allows authors to earn citations and find new collaborators, meaning more people see your work not only from your own field of study, but from other related fields too.

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Bio Hydrometallurgical Technology, Application and Process …

Many studies indicate microbial leaching is more important in low-grade ore, ore sample collected from Mianhuakeng uranium mine located in northern Guangdong province in …

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Magnetic Separation of Impurities from Hydrometallurgy

The removal of iron ion from leaching solution is critical for the recovery of value metals, with the method of choice commonly being crystallization (precipitation). This paper summarized the new improvements in iron removal by precipitation methods in recent years and proposed a novel process, magnetic seeding and separation. The new process can promote …

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Rare Earth Elements Biorecovery from Mineral …

Rare earth elements (REEs) are critical raw materials and are attracting interest because of their applications in novel technologies and green economy. Biohydrometallurgy has been used to extract other base metals; …

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Perspective of Obtaining Rare Earth Elements in Poland

The leaching reagent should be selected to fit specific characteristics of the source material, for example, acids are commonly used to extract REE from silicate ore mineral such as gadolinite, eudialite, and allanite, and the alkaline reagents and sulfuric acid are mainly used to leach REE from phosphate ore minerals like monazite and xenotime.

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Uranium in Poland: Resources and Recovery from Low-Grade …

The presented studies deal with an assessment of the possibility of uranium recovery from the low-grade uranium resources in Poland. Uranium was leached from the …

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Restoration of Uranium Tailings in the Mountains: A

In 1948, there was a uranium ore processing plant here. Uranium oxide was extracted from the ash of brown uranium-containing coals of the Sogutinsky deposit after their combustion (uranium oxide was extracted by leaching from the ash). In the Kadzhi-Say geochemical province, the radiation level is relatively low and ranges from 18 to 40 μR/h ...

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Bio Hydrometallurgical Technology, Application and Process

Many studies indicate microbial leaching is more important in low-grade ore, ore sample collected from Mianhuakeng uranium mine located in northern Guangdong province in China, leached by heap, by mixed microorganism of Acidithiobacillus Ferrooxidans and Leptospirillum Ferriphilum with 88.3% leaching efficiency . Uranium leaching takes places ...

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Shear Zone-Hosted Uranium Deposits of the …

The Bohemian Massif hosts a significant quantity of uranium deposits bound by brittle shear zones developed in high-grade metamorphic rocks (Rožná, Okrouhlá Radouň, Zadní Chodov and Dyleň) and/or granites …

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Uranium in Poland: Resources and Recovery from Low …

ore mineralogy and mineral liberation on the leaching behavior of uranium and other metals more readily leachable in comparison with the dictyonema shales. In the leaching by acid, all

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Microbiological leaching of uranium ores | Mining

Microbiological leaching has been used as an alternative approach to conventional hydrometallurgical methods of uranium extraction. In the microbiological leaching process, iron-oxidizing bacteria oxidize pyritic phases to ferric iron and sulfuric acid, and uranium is solubilized from the ore due to sulfuric acid attack.

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Microbial Leaching of Uranium Ore

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A study of the bioleaching of a Spanish uranium ore. Part I: …

That is to say, the bacterial leaching of uranium ores is a two-step process: the bacterial leaching of pyrite and the leaching of the uranium ore with the resulting metabolic products of the pyrite biological attack.

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Radon Release Features of Different Uranium …

This chapter attempts to introduce the development of a radon sampling device for the investigation of the return air shaft of mines. Also, different radon measurement methods were compared, which were based on …

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Sulfur enhancement effects for uranium bioleaching in …

The bulk or granular ores was subjected in the column bioleaching reactors, which is a typical dynamic process of liquid-solid multiphase reaction. If the uranium ore particles are …

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Dorota Gajda

Uranium was leached from the ground uranium ores with efficiencies in 81– range that depend on the type of ore and leaching solution used. In the next step, the post-leaching solution was treated by the solvent extraction or ion exchange chromatography to separate uranium from other metals present in the ore.

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