• دوشنبه تا شنبه: 10:00 - 16:00 / یکشنبه تعطیل است

Radiological assessment of Abu-Tartur phosphate, Western ...

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 using gamma spectrometry (NaI (Tl) 3"x 3"). Phosphate and environmental samples were collected from Abu-Tartur …

به خواندن ادامه دهید

APPLICATION OF THE ROCK MASS CLASSIFICATION SYSTEMS …

6. Geological and Mining Situation of Abu-Tartur Mines Longwall panels under investigation are located at Abu-Tartur plateau in the south-west of Egypt, in the Western desert. The plateau has a semi-oval shape and is exposed to the north -west direction. Its area comprises about 1200 Km …

به خواندن ادامه دهید

Geochemistry and microprobe investigations of Abu Tartur ...

Abu Tartur phosphorites are considered as highest-grade in Egypt (attain average of 25 wt.% P 2 O 5) and considered as one of the most important factors in development in Abu Tartur area.Preliminary exploration of the mining area (about 108 km 2) led to an estimation of 987 million tons as economic reserve with an average of P 2 O 5 content not less than 25 wt.%.

به خواندن ادامه دهید

Panel Width Affected by Rock Mass Classifications (Abu ...

For the conditions of Abu-Tartur the depth of mining varies from 140 to 290 m with an average of 200m therefore, the optimum panel width is 102 m and pillar width 30m with extraction ratio = 80 % ...

به خواندن ادامه دهید

Panel Width Affected by Rock Mass Classifications (Abu ...

For the conditions of Abu-Tartur the depth of mining varies from 140 to 290 m with an average of 200m therefore, the optimum panel width is 102 m and pillar width 30m …

به خواندن ادامه دهید

Evaluation and Optimization of Abu Tartur Egyptian ...

Abu Tartur phosphate deposit is one of the largest phosphates mining area (1000 million tons and 200 million tons proved) in the Middle East Rock phosphate sample is

به خواندن ادامه دهید

(PDF) Report on Abu Tartur Phosphate Rock Beneficiation ...

Simplified Flowsheet for concentration of Abu Tartur Phosphate Rock Material Balance Assume basis 100000tons/year Screener efficiency = 95% Assume clay only Al2O3 Screener Real Reactions For Simplification Energy Balance Findings Discussion: Solutions have been presented which can be carried out simultaneously, they aim to maximize profit and ...

به خواندن ادامه دهید

Phosphate Mining Wastes at Abu Tartur Mine Area, Western ...

The purpose of this work is to characterize and assess the adverse environmental and human health impact associated with the mining and beneficiation activities at the Abu Tartur phosphate mining area, with the intention of elucidating the evidences of environmental …

به خواندن ادامه دهید

Recovery of lanthanides from Abu Tartur phosphate rock ...

In the present work, a process for the treatment of Abu Tartur phosphate rock for the recovery of lanthanides without interfering with the normal route proposed for fertilizer production, is proposed using HNO 3 as a leaching agent. Further, an attempt was made to defluorinate the leach solution in order to upgrade the fertilizer and, at the same time, recover the fluorine.

به خواندن ادامه دهید

LOAD CALCULATIONS AND SELECTION OF THE POWERED …

3. Geology of Abu-Tartur plateau The area of Abu-Tartur plateau is about 1200 km2. It is semi oval in shape opening towards the North West. In the south east and North West the plateau is limited by steep scarps.[9] 3.1. Plateau formation (stratigraphy) Rock properties and stratigraphic column along Abu-Tartur plateau are represented in Table (3)

به خواندن ادامه دهید

(PDF) Phosphate Mining Wastes at Abu Tartur Mine Area ...

Phosphate Mining Wastes at Abu Tartur Mine Area, Western Desert of Egypt 1,2. Ashraf Elmaghraby. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 34 Full PDFs related to this paper. Read Paper.

به خواندن ادامه دهید

PAPER OPEN ACCESS Direct leaching of rare earth elements ...

Chemical composition of the concentrated Abu-Tartur phosphate rock samples used. Constituent CaO P 2 O 5 Fe 2 O 3 F SiO 2 SO 3 MgO Al 2 O 3 Na 2 O LOI * Content [wt%] 46.67 30.84 3.80 2.80 2.30 1.50 0.90 0.46 0.28 5.1 *LOI=Loss of Ignition The XRD-analysis suggests that the phosphate rock consists mainly of Francolite together with

به خواندن ادامه دهید

Impact of iron concentration as a result of groundwater ...

Abu Tartur Plateau to the granite hills of Abu Bayan. The north end of El Kharga Oasis is confined by Abu Tartur Pla-teau and Gebel Abu Tartur. To the southwest El Kharga is bounded by the west Kharga plain and to the east the Tebes Plateau. Elevations on the floor of the depression range from near 0 mean sea level (msl) to 120 m above msl ...

به خواندن ادامه دهید

Azotobacter vinelandii Evaluation and Optimization of Abu ...

Chemical composition of Abu Tartur phosphate ore Chemical analysis of Abu Tartur phosphate ore, Abu Tartur phosphate ore is characterized by XRD (Figure1) which shows the presence of insoluble P 2 O 5 is 24.5 % and the other element presence in this ore is Ca 39.5 %, L.O.I. 12.32 %, SiO 2 with 7%, SO 5.07%, Fe 2 O 3 with 6.6%, Al 2 O 3

به خواندن ادامه دهید

Upgrading of Abu Tartur Calcareous Phosphate via Selective ...

Abu-Tartur PR contains about 49.20% apatite mineral equivalent to 21.8% P. 2. O. 5 . and more than 50% of undesirable components including about 26% carbonate minerals. In this study acetic acid was used to eliminate the carbonate content of Abu-Tartur PR which would save acid consumption besides increasing the tenor of P. 2. O. 5, U and Ln.

به خواندن ادامه دهید

Recovery of Uranium and Rare Earth Elements from Western ...

The Abu-Tartur phosphate deposit (Western desert, Egypt) is one of the largest phosphate deposits in the world. It is geomorphologically localized in the southeastern portion of the Abu-Tartur plateau (600 km from Cairo) and is the largest source of uranium and rare earth elements (REEs) in Egypt [].Abu-Tartur plateau has a huge reserve of phosphate ore reaching up to billion tons [].

به خواندن ادامه دهید

Radiological assessment of Abu-Tartur phosphate, Western ...

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 using gamma spectrometry (NaI (Tl) 3"x 3"). Phosphate and environmental samples were collected from Abu-Tartur phosphate mine and the …

به خواندن ادامه دهید