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Concentration Of Phosphate Rock In Egypt

Environmental Assessment of Natural Radioactivity in …

Ten phosphate samples were collected from Sibaiya area, Nile Valley, Central Eastern Desert, Egypt. Average of activity concentrations are 152.5, 947 and 33.2 Bqkg-1 against the …

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Simultaneous Recovery of Rare Earth Elements and

In order to explore a green process for the recovery of REEs from phosphate rock, this study investigates the effects of phosphoric acid concentration, liquid-to-solid ratio (L/S ratio), leaching ...

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Physical and thermal treatment of phosphate ores — An …

Using this scheme, the following results were obtained for samples from two mines from the Red Sea Coast phosphate rock, Egypt ... This extremely important publication is a collection of abstracts of most of the published material on phosphate concentration all over the world since 1930. 5.

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Assessment of natural radioactivity in fertilizers and phosphate …

The internal hazard indexes for phosphate ores and fertilizers used in Egypt were found to be higher than the safety limit, except for PhS1 and PhF5, with average values of 2.46 ± 0.51 for the phosphate ore samples and 3.20 ± 0.38 for the phosphate fertilizer samples (Tables 5 and 6), which implied that the use of phosphate fertilizers should ...

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Mineral Resources in Egypt (II): Non-metallic Ore …

15.1 Phosphate Deposits of Egypt: Composition, Origin, and Utilization Ahmed El-Kammar 15.1.1 Introduction Phosphate deposits are stratified shallow marine sedimentary rocks usually associated with black shale, limestone, glau-conite, chert, and siltstone. They have different ages from Paleozoic to Quaternary; however, in Egypt, they belong to

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ASSESSMENT OF THE HEAVY METALS AND NATURAL …

232Th series and 40K) in collected sedimentary phosphate deposits samples from El -Hamraween, El Quser and Safaga phosphate mines in Egypt. And to establish correlation …

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Geochemical behavior and radiological hazards …

Fig. 1 Phosphate deposits distribution in Egypt(after Khalil and Denchi, 2000). This study's primary goal is to evaluate the radionuclides' activity concentration U-238, Ra-226, Th- 232, and 40K in some Egyptian phosphate rocks and evaluate their potential radiation hazards via computing the radiological hazard indices.

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Importance of phosphate pock application for …

100 years. Egypt has about 4% of the world's phosphate reserves (2.78 billion tons) and produces about 3% of the world's phosphate production (about 6 million tons per year). Egypt phosphate rock reserves and resources The phosphate rocks in Egypt date back to the begin-ning of the last century, and their exploitation was initi-

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Geochemistry and microprobe investigations of Abu …

The REE-bearing phosphate rocks in Egypt also contain elevated ... The average activity concentration for the Sibaiya phosphate samples under study is 152.5, 947, and 33.2 Bq/kg against the ...

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An approach to understand the uranium's concentration

The Nile Valley is a main area for Egyptian phosphorites. The studied samples from the eastern and western sides of the Nile Valley showed similarities in their characteristics, suggesting one depositional basin, but they varied in their uranium content, with averages recorded at 91.7 and 44.83 ppm on the eastern and western sides, respectively. The evidence …

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(PDF) Flotation of Egyptian Newly Discovered Fine Phosphate …

In Egypt phosphate ore reserves are present in three main localities namely; Nile valley, new valley in western desert, and the eastern desert along the red sea ... (beds) which call for different strategy of concentration. The ore is composed predominantly by apatite (84% in weight basis) plus silicates (16%). ... (such as phosphate rock) are ...

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(PDF) P2O5 – F- U Characterization and Depositional …

In 2007 quadratic regression model was theoretically developed with widely used in many practices, after one year, in 2008, geochemists statistically applied it on phosphate ores and recognized the U concentration in mg/ kg base on two predictor variables X1, X2 that represent P2O5 and F concentrations in wt.%; respectively.

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Chemical composition of the concentrated Abu …

OCP, the state-owned Moroccan phosphate rock mining company and phosphoric acid manufacturer, wants to stop the practice of seawater phosphogypsum disposal in the near future [9] and is actively ...

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Radiological impacts of natural radioactivity in Abu-Tartor phosphate …

Phosphate and environmental samples were collected from Abu Tartor phosphate mine and the surrounding region. The activity concentration of 226 Ra ( 238 U) series, 232 Th series and 40 K were measured using a gamma-ray spectrometer. ... Radiological impacts of natural radioactivity in Abu-Tartor phosphate deposits, Egypt.

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Beneficiation of Abu Tartur Phosphate rock by partial

rock from 22.9% to 25.82 %, with a phosphate recovery of 96.36 %, at the following conditions acid quantity 60% of the stoichiometric amount required to react with the calcium carbonate, reaction time of 15 minutes, and an acid concentration of 1.2 M.

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Mineralogical, geochemical characteristics and origin of …

The trace element content of certain phosphate rocks is critical for their utilization and consequently, determination of the concentration of Ni, Zn, and U (environmental pollutants i.e. toxic elements), and the common elements (Co, K, Mg, Mn, Na) in phosphate rocks used for the production of fertilizers in Egypt.

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Egyptian-Indian joint venture to operate raw phosphate factory in Egypt

The factory aims to boost the concentration of raw phosphate to be included in new industries. ... Indian fertilizers and raw materials producer Wilson to establish a firm specialized in setting up and operating a raw phosphate production factory in Egypt, as per a statement.

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The Phosphate Mining in Egypt: Geology and Sustainable …

Egypt has about 4 percent of the world phosphate reserves (2.78 billion tons), and produces about 3 percent of the world phosphate production (about 6 million t/y).

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Leaching of rare earths from Abu Tartur (Egypt) phosphate …

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Egyptian Journal of Chemistry

geochemists statistically applied it on phosphate ores and recognized the U concentration in mg/ kg base on two predictor variables X1, X2 that represent P 2 O 5 and F concentrations in wt.%; respectively. Rock phosphate deposits contain many million tonnes of uranium, which may be extracted as a by-product of making fertilisers.

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Radiological impact of natural radioactivity in Egyptian phosphate …

In the phosphate rock, the natural U and Th decay-series are in equilibrium. ... Activity concentration of 232 Th for Egypt, Nigeria, Tanzania, Brazil and South Africa is high compared to the other countries, while concentration of 40 K is higher for Egypt, Saudi Arabia, India, Italy, Pakistan and Nigeria than all other countries. This ...

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(PDF) Impact of Phosphate Mining on Groundwater Quality

Arab J Geosci (2016) 9:670 DOI 10.1007/s12517-016-2698-x ORIGINAL PAPER An overview of phosphate rocks and their mining impact on groundwater, Eastern Desert, Egypt Mohamed Yousif 1 & Ondra Sracek 2 Received: 20 July 2015 / Accepted: 26 September 2016 # Saudi Society for Geosciences 2016 Abstract The Eastern Desert of Egypt represents a remote ...

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Radiological impacts of natural radioactivity in Abu-Tartor phosphate …

Phosphate and environmental samples were collected from Abu Tartor phosphate mine and the surrounding region. The activity concentration of 226Ra (238U) series, 232Th series and 40K were measured ...

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Natural radioactivity and dose assessment for phosphate …

The activity concentrations of 226 Ra, 232 Th and 40 K have been measured by gamma spectroscopy (sodium iodide NaI(Tl) detector) in phosphate rock samples, collected …

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Radiological impacts of natural radioactivity in Abu-Tartor phosphate

Phosphate rock is the starting raw material for all phosphate products. It can be of sedimentary, volcanic or biological origin. Concentrations of 232 Th series and 40 K in phosphate rocks of all types are similar to those observed normally in soil, whereas the concentration of 238 U and its decay products tend to be elevated in phosphate deposits of sedimentary origin.

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The Phosphate Mining in Egypt: Geology and …

Egypt holds 4% of global phosphate deposits (2.78 billion tones) and produces 3% of global phosphate production (6 million tones / year). 1. Introduction. The phosphate rocks are mined...

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Phosphate Rock: Origin, Importance, Environmental Impacts …

Cadmium concentration in phosphate rock varied from 3-150 mg/kg with average concentration of 18 mg/kg, while uranium concentration in phosphate rock is ranging from 20 to 500 mg/kg with average ...

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Phosphate Rock

Mines in Egypt, China, USA, and Saudi Arabia store their PMWR in dumps and piles. ... It is principally mined from apatite and phosphate rocks (phosphorite) in which the concentration of phosphate has been enhanced by sedimentary, igneous, weathering, and biological processes. ... Phosphate rock was listed as a critical raw material in May 2014 ...

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Upgrading of Phosphate Ore Wastes of El-Nasr Mining Company, Egypt

In Egypt phosphate reserves are present in three localities namely; the eastern desert, Nile valley, and the new valley in western desert. Currently, phosphate ores are being mined from Nile valley areas. The mining companies export the fractions of high grade (over 30% P2O5) while the fractions of low grade is being rejected.

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Radiological assessment of Abu-Tartur …

Journal of Environmental Radioactivity, 2005. The activity concentrations of 226 Ra, 232 Th and 40 K have been measured by gamma spectroscopy (sodium iodide NaI(Tl) detector) in phosphate rock samples, collected from the Wadi El …

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