كسارة مخروطية سلسلة HCS

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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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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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Evaluation of Rare Earth Elements in Black Sand and Phosphate ores, EGYPT

RESULTS AND DISCUSSION: 3.1. Uranium and thorium in black sand samples: Table (2) shows the concentration of uranium, thorium in different Black sand samples collected from different places in the Rashid area in Egypt .The average concentration of U and Th were 18.62ppm and 82.67 ppm, respectively.

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(PDF) Importance of phosphate pock application for …

Egypt phosphate rock reserves and resources The phosphate rocks in Egypt date back to the beginning of the last century, and their exploitation was initiated between 1908 and 1911 by foreign companies in regions along the Nile Valley and the Red Sea Coast and lately in Kharga Oases in the Western Desert. ... The concentration of total P was ...

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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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Mining and industrial processing wastes of phosphate rocks …

Globally, Egypt ranked the eighth position in the production of phosphorus with about 5 million tons annually. Phosphate ore is considered one of the commonest sources of …

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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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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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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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Unconventional Uranium Resources From Phosphates

The highest uranium concentration of 631.6 ± 2.5 mg kg −1 was recorded for the Matongo phosphate rock deposit (Burundi), and the lowest uranium concentration of 10.7 ± 0.2 mg kg −1 was ...

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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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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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(PDF) An overview of phosphate rocks and their mining …

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 arid area which …

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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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Elemental Analysis of Egyption Phosphate Fertilizer …

concentration was found to be higher in local phosphate deposits than that inimported rock samples. Phosphate rock is a source of heavy metal pollution of air, soil, water, food chain etc,therefore requires removal of heavy ... The largest phosphorite or rock phosphate deposits in Egypt,are found as beda, layers and as

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Mining and industrial processing wastes of phosphate rocks …

In Egypt, the belt of phosphate deposits extends from the Red Sea (Safaga and El Quseir) through the Nile Valley (El-Sebaiya and El-Mahamid) and to the Western Desert (Abu Tartur), with an average concentration of P 2 O 5 of about 30%.

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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) 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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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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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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Review on Beneficiation Techniques and Reagents Used for Phosphate …

phosphate minerals with a strip structure in the sedimentary phosphate rock were proved to be effectively beneficiated by discarding tailings th rough gravity separation. In this case, the energy

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PhosPhate Misr

Misr Phosphate is one of the major companies producing phosphate rock concentrate in Egypt with production capacity of around 5 Million Tons a year from one of the biggest reserves in the world "Abu Tartour" located 50KM west of the city of El Kharga City, the capital of the New Valley Governate in the southwestern Egypt.

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

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