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(PDF) Ultra-fast adsorption of radioactive technetium

Abu-T artur are a, the west ern de ser t of Egypt. Cetyltrime thylammonium b romide ( CT AB) with a chemical formula of C 19 H 42 BrN and molec ular weight of 364.45 g/mol as the surfactant was ...

Lithologic characterization of the phosphorite-bearing …

U contents in the studied samples range from 30 to 85 ppm and averaging 54 ppm. It is lower than what was recorded in the phosphorites of Nile Valley (79 ppm) and the Red Sea (67 ppm) and is higher than Abu Tartur (34 ppm) (Germann et al. 1987). This lateral variation of uranium content could be attributed to post-depositional enrichment of ...

Characterization and exploitation of black shale as

First of all, Abu-Tartur plateau is characterized by Lat Jurassic-Tertiary rock units (Fig. 1a). The base of plateau escarpment is occupied by Late Jurassic-Middle Turonian Nubia Group: Six Hills, Abu-Ballas, Sabaya, Maghrabi, and Taref formations. This group is considered to be the oldest rock units occurring in the study area as plains and ...

Location and geology of the Abu Tartur Plateau, …

Abu-Tartur Plateau lies approximately 650 km southwest of Cairo in the Western Desert between Dakhla Oasis to the west and Kharga Oasis to the east (Fig. 1). The stratigraphic sequence at the Abu ...

The geochemical and economic significance of REE in the …

The Mazıdağı phosphates were formed on a shallow marine platform located in the south of the Neo-Tethys Ocean between the African-Arabic and Eurasian plates during the Upper Cretaceous period.

Successful spectral remote sensing techniques for mapping …

Spectral remote sensing mapping methods were applied for mapping apatite mineral as a key indicator of phosphate ore outcrops at the eastern side of Abu Tartur Plateau, Western Desert, Egypt, using Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) and Landsat series imagery. Previous investigations of …

Mineralogical and Technological Aspects of Phosphate Ore …

The object of the study was apatite-nepheline ore of the Khibiny deposits group (Russia) and phosphate ore of the Abu-Tartur deposit (Egypt). For the development of beneficiation schemes and modes, complex studies were carried out on mineral and elemental composition, including optical methods of analysis, electron microscopy using …

Geochemical significance for the composition and …

Abu Tartur is a plateau of approximately 470m–550 m altitudes above sea level. It forms one of the main geographical features in the Western Desert in Egypt, …

The Cretaceous glauconitic sandstones of Abu …

The Cretaceous glauconitic sandstones of Abu Tartur, Egypt. The Abu Tartur mine is located in the Western Desert of Egypt, 50 km west of El Kharga City. Geologically, the …

Phosphate Mining Wastes at Abu Tartur Mine Area, …

Abu-Tartur phosphate mine is the largest phosphate mine in Egypt. The mine located adjacent to Abu Tartur plateau, some 50 Km to the west of El Kharga Oasis, Western Desert of Egypt (Figure 1). The estimated phosphate ore reserves in the area may reach up to billion tons. An extensive geological drilling exploration

A regional stratigraphic correlation for the upper …

At Kharga Oasis as well as in the Nile Valley, the bulk of the economically important phosphorites occur in the lower part of the formation, reaching about 6 m at the Abu Tartur mine, decreasing in thickness to the El-Kharga and north El-Dakhla oases.This phosphate bed is followed by suboxic black shale and glauconitic sandstones overlain by …

Sedimentological evidences supporting reworking and …

The Abu-Tartur plateau lies 600 km southwest of Cairo and 50 km west of El Kharga Oasis, Western Desert (Fig. 1).It is located between Dakhla Oasis to the west and Kharga Oasis to the east (Fig. 2).The southern edge of the plateau overlooks the Nubia plain to the south, whereas it gently tilts northward forming the general surface of north …

(PDF) Review on Beneficiation Techniques and Reagents …

Egyptian Abu Tartur high-grade phosphate ore in the size range of 38–210 mm. A concentrate . assaying 31.2% P 2 O 5 with a recovery of 70% was obtained through the removal of dolomite gangue .

High Mg-glauconite in the Campanian Duwi …

The phosphate-glauconite rich deposit of the Campanian Duwi Formation at the Abu Tartur Plateau in the Western Desert of Egypt represents one of the largest …

Recovery of Uranium and Rare Earth Elements from Western …

Dissolution of uranium and rare earth elements from the Abu-Tartur phosphate rocks, Egypt using a mixed EDTA + nitric acid solution was studied. The eff ect of factors such as particle size, EDTA ...

The potential production of rock-based fertilizer and soil …

The Abu-Tartur plateau is a large, suboval-shaped, limestone plateau located in the central Western Desert as a cuesta landscape at altitude 450–500m a.s.l, and between coordinates 25⁰10ʼ-25⁰38ʼN and 29⁰30ʼ-30⁰10ʼE (Fig. 1). It is considered to be the most important plateau in the Western Desert of Egypt due to the contained ...

10.1016/S0304-386X(99)00018-3 | DeepDyve

The low content of uranium in Abu Tartur phosphate rock (averaging 25 mg/kg) is significant as compared to domestic phosphate deposits and is probably due to post-depositional leaching [2] . 2 Experimental 2.1 Analysis For analytical control during processing of the working sample, a simple and rapid method for the determination of the …

Radiological assessment of Abu-Tartur phosphate, …

The contents of natural radionuclides ((226)Ra, (232)Th and (40)K) were measured in sedimentary phosphate rock samples (Abu-Tartur phosphate, Western Desert Egypt) by …

(PDF) Mineral Industry in Egypt – Part II Non-Metallic …

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). The present article covers ...

(PDF) Successful spectral remote sensing …

Spectral remote sensing mapping methods were applied for mapping apatite mineral as a key indicator of phosphate ore outcrops at the eastern side of Abu Tartur Plateau, Western Desert, Egypt ...

Elemental Analysis of Egyption Phosphate Fertilizer …

the New Valley Governorate were obtained from theAbu-Tartur fertilizer factories. Analysis of phosphate rock for all the elements of interest was carried out with IR Spectroscopy analysis Tanta University Model FT.IR Tensor 27BruKer (5000 cm-1 – 200 cm ). The results showed that heavy metalcontent was lower in Abu-Tartur

Properties and origin of upper Campanian phosphorites in Egypt

At Abu Tartur comparable structural control may have been active with the enrichment of phosphates at the western flank of the Kharga uplift. Sedimentary environment. In all facies areas abundant bioturbation features have been detected which in most cases occur at the base of the phosphorite layers. Phosphatic particles fill the tubes of ...

Organic richness, kerogen types and maturity in the shales of …

In Egypt, oil shale occurs in the Safaga-Quseir area to the east of the Nile River and at Abu Tartur in the Western Desert (Figure 1(A)), with estimated reserves of about 5700 Â 106 brl (Dyni 2006).

Enrichment of abu-tartur phosphate ore wastes

Since the. Enrichment of Abu-Tartur phosphate ore wastes. 141. phosphate mineral is depressed by sulphuric acid–phosphoric acid mixture, it could be. hypothesized that the collector (oleic acid ...

(PDF) Vegetation Composition of Abu Tartur Mining …

In this study, the plant wild vegetation were surveyed in Abu Tartur mining area located in the Southern part of Western depending essentially on the seepage from …

LOAD CALCULATIONS AND SELECTION OF THE …

At Abu-Tartur longwall phosphate mine, two types of powered roof support with various capacities were tried earlier. The two leg shield power supports was applied f inally. The main problem at Abu-Tartur longwall mines is the high frequency of roof rock falls d uring face advance. Roof collapse is due to an inadequate capacity of the chosen ...