Extraction of uranium from carbonaceous sandstone materials

by Ivan Leroy Nichols

Publisher: Dept. of the Interior, Bureau of Mines in [Washington]

Written in English
Published: Pages: 16 Downloads: 287
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Subjects:

  • Uranium ores,
  • Sandstone

Edition Notes

Bibliography: p. 16

Statementby I. L. Nichols, A. G. Lawrence, and D. C. Seidel
SeriesReport of investigations - Bureau of Mines ; 8393
ContributionsLawrence, A. G. joint author, Seidel, D. C. joint author, United States. Bureau of Mines
The Physical Object
Pagination16 p. :
Number of Pages16
ID Numbers
Open LibraryOL14915116M

Uranium extraction from coal ash is presently being studied in China, to test the extraction of uranium from ash produced by the burning of lignite coal (Morales et al., ). This coal has high ash content ( percent) and an average uranium content of 65 ppm (range of ppm). Sandstone-type uranium deposits typically occur in fine to coarse grained sediments deposited in a continental fluvial environment. The uranium is either derived from a weathered rock containing anomalously high concentrations of uranium or leached from the sandstone itself or an adjacent stratigraphic unit.   Uranium Extraction from Phosphates. Still, it is an interesting little technology. Syria has expressed interest in extracting uranium from phosphates, both as an environmental measure and as part of a stated ambition to acquire much of the nuclear fuel cycle. Syria requested, and received, technical cooperation with the IAEA in and. The reducing conditions may be caused by such reducing agents in the sandstone as carbonaceous material, sulphides, hydrocarbons, hydrogen sulphide, or brines. The basic mill process is a sulphuric acid leach with solvent extraction recovery of uranium and vanadium. Run-of-mine ore is reduced to minus 28 mesh in a six-foot by ft.

Precipitation is induced by reduction, probably by carbonaceous material or hydrogen sulfide, or both. U is transported mainly in the form of the highly stable uranyl dicarbonate and tricarbonate complexes.   RESERVES AND RESOURCES Egypt's reserves and resources of the fissionable raw materials include the outlined conventional type uranium mineralizations discovered mainly at the localities of G. Gattar, Eradia and Missikat, Atshan, Abu Garadi, Urn Safi and Um Ära in the Eastern Desert and, the newly discovered occurrence in Central Sinai, as well. A grab sample of highly radioactive sandstone had an equivalent uranium content of percent, an actual uranium content of percent, and trace amounts of zinc, nickel, and lead. A 1-foot-long vertical channel sample collected in the drift 12 feet from the entrance contained per cent uranium. The Chemistry Of The Extraction Of Gold The Chemistry Of The Extraction Of Gold by John Marsden. Download it The Chemistry Of Gold Extraction books also available in PDF, EPUB, and Mobi Format for read it on your Kindle device, PC, phones or tablets. This book is a valuable asset for all professionals involved in the precious metals industries.

Uranium mining is the process of extraction of uranium ore from the ground. The worldwide production of uranium in amounted to 60, tonnes. Kazakhstan, Canada, and Australia are the top three producers and together account for 70% of world uranium production. Other important uranium producing countries in excess of 1, tons per year are Niger, Russia, Namibia, Uzbekistan, China, . The host sandstone is alluvial fan-braided river facies, and occurs as continental basin fill. The sandstone lies on Carboniferous intermediate-acidic volcanic, volcanoclastic rocks and Hercynian granites, which are considered the source of the sediments and the uranium. (2) Minerals associated with these deposits are. Acknowledgements. books, lots of novels, tale, jokes, and more fictions collections are after that launched, from best seller to one of the most current released. You may not be perplexed to enjoy all book collections solution mining leaching and fluid recovery of materials pdf that we will totally offer. It is not on the order of the costs.

Extraction of uranium from carbonaceous sandstone materials by Ivan Leroy Nichols Download PDF EPUB FB2

Extraction of uranium from carbonaceous sandstone materials. [Washington]: Dept. of the Interior, Bureau of Mines, (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Authors / Contributors: I L Nichols; A G Lawrence; D C Seidel; United States.

Bureau of Mines. Extraction of Uranium from Carbonaceous Sandstone Materials. Nichols-IL; Lawrence-AG; Seidel-DC. NTIS: PB pages. Laboratory characterization studies have investigated the processing variability of carbonaceous uranium-bearing materials found in sandstone deposits.

This work was conducted by the federal Bureau of Mines in support of its goal to maintain. Download PDF: Sorry, we are unable to provide the full text but you may find it at the following location(s): (external link) http. Mulga Rock Mineralisation Uranium mineralisation: Extraction of uranium from carbonaceous sandstone materials book free associated with carbonaceous material and lignite Some coffinite and uraninite minerals have been reporteda) Uranium distribution map b) Uranium and carbon distribution map Orway Mineral Consultants (WA) Pty Ltd Pownceby et al.

It is well known that sandstone-type uranium deposits form mainly due to the precipitation of uranium from water, and the adsorption of uranium by peat, clay, and other minerals. Therefore, there is usually adsorbed hexavalent uranium (in the form of uranyl ions and their complexes) in sandstone-type uranium by: 1.

RI Considerations in the Extraction of Uranium from a Fresh-Water Aquifer: Miocene Oakville Sandstone, South Texas, by C.

Henry, W. Galloway, and G. Smith. 36 p., 12 figs., 4 tables, 1 appendix, ISSN: X: Print. To purchase this publication as a downloadable PDF, please order RID.

ABSTRACT. @article{osti_, title = {Geology of uranium in coaly carbonaceous rocks}, author = {Vine, J D}, abstractNote = {An extensive study was made of available literature and data concerning U deposits in coaly rocks.

Included were the following categories: a historical summary of the discovery and development of U deposits in coaly rock, the general features of coaly carbonaceous rocks. The Nalinggou–Daying uranium metallogenic belt lies within the Yimeng uplift belt to the northeast of the Ordos Basin ().The strata in the mining districts consist of the Triassic Yanchang Formation, the mid-Jurassic Yan’an Formation and Zhiluo Formation, and the Lower Cretaceous series, among which the mid-Jurassic Zhiluo Formation is the major ore-hosting horizon (Fig.

2, Jiao et al., ). The uranium is associated with carbonaceous material, vanadium, and probably molybdenum, in mineralized rock, which is defined here as rock containing more than 10 ppm uranium. At least part of the carbonaceous material and uranium was deposited in veins from aqueous solution.

Later alteration. THE SOURCE OF URANIUM – LOW GRADE ORES AND WASTE MATERIALS Polish uranium deposits. According to OECD-NEA Red Book () identified uranium resources in Poland count   Waste materials, stored in inappropriate places, are one of the most significant environmental issues concerning mining activities.

In Brazil, one closed uranium mine has faced such a problem. The waste, produced during the neutralization of acid drainage and containing several metals including uranium, has been disposed into the mine opening as a temporary alternative for over 20. operation and Development (OECD/NEA) and the IAEA jointly published a book on Uranium Extraction Technology.

A primary objective of this report was to docu­ ment the significant technological developments that took place during the s. The purpose of this present publication is to update and expand the original book. Uranium is precipitated by reduction processes caused by a variety of possible reducing agents within the sandstone, including carbonaceous material (detrital plant debris), sulfides (pyrite), ferromagnesian minerals (chlorite), bacterial activity, migrated fluids from underlying hydrocarbon reservoirs, and others.

The methods of material extraction are still in preliminary stages of development but significant progress has already been reported in a previous publication [2]. As outlined in [2], not all the materials con- tained in seawater are worth extracting unless there are specific requirements (e.g.

extraction of uranium). The Qianjiadian uranium deposit has been widely regarded as a typical interlaminar oxidation zone-type uranium deposit in the southern part of the Songliao Basin [14,15,16].Many publications have documented the sedimentary facies, depositional environment, sandstone petrography and geochemistry, mineral paragenesis and textures, mineralization geochronology, and ore genesis.

Laboratory studies were therefore conducted to determine the relative ability of various types of carbonaceous material and some other substances to remove uranium from solution. The results of these experiments indicate that the low-rank coals are more effective in extracting uranium than any of the other materials used.

Abstract. In-situ recovery (ISR) of uranium (U) from sandstone-type roll-front deposits is a technology that involves the injection of solutions that consist of ground water fortified with oxygen and carbonate to promote the oxidative dissolution of U, which is pumped to recovery facilities located at the surface that capture the dissolved U and recycle the treated water.

Patent: Process of extracting both uranium and radium from uranium-containing ores Title: Process of extracting both uranium and radium from uranium-containing ores Full Record. several small sandstone-type uranium deposits. During the winter of U, about U5>0 tons of rock containing between and percent uranium was mined from one of the deposits (Kling No.

2), and about § tons of similar-i grade material was mined from the Bonato deposit. There has been no additional. Uraniferous sandstone deposits commonly resulted when uranium in groundwater precipitated in reducing environments caused by degradation of ancient wood and organic debris.

However, the mineralogy of uranium in fossil wood has received relatively little study. Previous microscopic observations of petrified wood from a few uranium mines have demonstrated that uranium in fossil.

Uranium precipitated under reducing conditions caused by a variety of reducing agents within the sandstone carbonaceous material (detrital plant debris, amorphous humate, marine algae) Sulfides (pyrite, H2S) hydrocarbons (petroleum) interbedded basic volcanics with abundant ferro-magnesian minerals (eg chlorite).

Uranium Raw Material for the Nuclear Fuel Cycle: Book of Abstracts and Extended Abstracts Exploration, Mining, Production, Supply and Demand, Economics and Environmental Issues Organized by the URAM Uranium~bearing coal^ carbonaceous shale$ and carbonaceous sandstone occur in the Mesaverde formation and Dakota sandstone of Cretaceous age on and adjacent to La Ventana Mesa» Analyses indicate that the coal contains from 0« to Oe62 percent uranium and as much as l«3li percent uranium in the ash«.

Soviet and Mongolian geologists initiated geological exploration of Mongolia for minerals after World War II (). These activities lasted until the breakup of the USSR in As part of this exploration systematic uranium and rare element exploration was undertaken across Mongolia. New exploration resumed in Mongolia at the beginning of the 21st century for a range of ore and mineral.

URANIUM IN CARBONACEOUS ROCKS GEOLOGY OF URANIUM IN COALY CARBONACEOUS ROCKS By JAMES D. VINE ABSTRACT Though the association of uranium with coaly rock near Denver, Colo., was first reported invery little was known about the relation of uranium to coaly rocks until the decade S>An isotopic study of sulfide minerals associated with sandstone-type uranium deposits of the Colorado Plateau and Wyoming indicates S/sup 32/S/sup 34/ ratios of these 57 samples varying; between to The majority, however, exhibit ratios that.

Carbonaceous material is known to interfinger with the basal sandstone, and carbon has been noted in the Lower Sandstone Conglomerate Unit. Remobilization of the uranium has resulted in the deposition of uranium as fracture fillings around and below the main mineralized zones (MinEx, b).

Uranium ore deposits which contain certain proportions of other metals and elemental components, such as are present in redox roll front ore deposits, are selectively leached in situ by passing therethrough relatively dilute aqueous leach solutions comprising essentially from about to 5 grams per liter of ammonium bicarbonate and from about to 3 grams per liter of peroxide, preferably.

Uranium Primer - Uranium Extraction Methods Uranium is found in mineral deposits worldwide, with over one-half of the world’s uranium production today derived from mines located in Canada, Australia, and Kazakhstan.

Uranium-bearing ores are mined by methods similar to those used for other metal ores. The uranium ore is removed from the ground by. Uranium deposits in the South Texas Uranium Region are classical roll-type deposits that formed at the margin of tongues of altered sandstone by the encroachment of oxidizing, uraniferous solutions into reduced aquifers containing pyrite and, in a few cases, carbonaceous plant material.

Many of the uranium deposits in South Texas are dissimilar. PDF | Sandstone–type uranium deposit hosted by reduced feldspathic sandstone sequence of lower part of Cretaceous Mahadek Formation occurs at Lostoin | Find, read and cite all the research.URANIUM MINING METHODS.

Based on the current understanding of uranium deposits in the Commonwealth of Virginia, extraction of uranium ore would use open-pit mining, or underground mining, or a combination of both ().These general terms incorporate a large variety of design possibilities—there are as many methods of mining uranium as there are orebody sizes, shapes, and.

Uranium Recovery (Extraction) Methods Uranium recovery involves one of the following extraction processes. In a conventional uranium mine and mill, uranium ore is extracted from the Earth, typically through deep underground shafts or shallow open pits.

The ore is transported to a mill, where it is crushed and undergoes a chemical process to.