Characterization and separation of pyrite from Abu Tartur black shale

Ibrahim, Suzan S.; Kammar, Ahmed M. El; Guda, A. M.

doi:10.1016/j.ijmst.2015.05.008

Cited by 9 publications

(2 citation statements)

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“…XRD is one of the non-destructive techniques of multi-component mixtures; it allows a commonly utilities, first a rapid analysis to identify the different mineral species included within a material as well as their size parameters. And second it can also be used to access quantitative information such as the relative proportion of each species in a matrix and can justify the nature and sometimes quantify the crystalline minerals constituting the solid phases too (Ibrahim, El Kammar, & Guda, 2015). For the recording of the diffractograms, it is ne-cessary to prepare special pasts from the sample preliminary grinded till a particle size close to 30 microns.…”

Section: Figure 2 Size Distribution Of Studying Samplementioning

confidence: 99%

Beneficiation of phosphate sludge rejected from Djebel Onk plant (Algeria)

Nettour¹,

Chettibi²,

Bulut³

et al. 2019

Min. miner. depos.

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Flotation tests have been used in order to achieve the purposes of this study which are: To obtain the highest recovery with a maximum grade of P 2 O 5 from the tailing generated by the phosphate plant of Djebel Onk in the East of Algeria. To get a good concentrate from the rejections, which gives an added value to the national economy. To preserve the human life and finally to protect the environment from the heavy metals contained in the tailings. Methods. To reach our goals we have used: the granular and XRD analysis to characterize the tailing composition so as to choose the right reagents and conduct a good flotation. Flotation tests were carried out using Sodium Oleate as a collector and alkyl hydroxamic acid (AERO 6493) as collector and frother, zeta-meter system to measure the Zeta potential of the phosphate tailing and define the convenient values insuring the particles surfaces' best adsorption.Findings. The granular analysis has allowed us to observe a main mode represented by the fraction less than 125 μm equal to 76.77%; the weight yield of the second mode of fraction (-200 + 125) μm is about 18%; the third mode represents the coarse particle size range of a mesh of greater than 200 μm represents only 4.94% in yield. However, in the case of AERO 6493, the recovery reaches 97% in condition 150 mg/l of concentrate and 26.51% grade of P 2 O 5 . On the other hand, the flotation test with the sodium oleate shows a low recovery with good content on P 2 O 5 which reaches 30%.Originality. Since the beginning of phosphate production in Djebel Onk phosphate complex in 1965, tailings have been evacuated into the nature without any further treatment. The originality of this work lays in the recovery of phosphate in the fine slice on the one hand and the elimination of heavy metals drained in the tailing on the other hand. Practical implications.Using the alkyl hydroxamic acid with different concentrations determined in the flotation tests leads to a greatest recovery of phosphate with minimum financial charges of exploitation, transport, crushing and grinding. In result, the productivity of the Djebel Onk complex can be increased and the environment can be preserved too.

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Section: Figure 2 Size Distribution Of Studying Samplementioning

confidence: 99%

Beneficiation of phosphate sludge rejected from Djebel Onk plant (Algeria)

Nettour¹,

Chettibi²,

Bulut³

et al. 2019

Min. miner. depos.

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“…Acid leaching is a process of enrichment of siliceous and calcareous phosphate ore applied to the Abbotabad deposit in Pakistan [22,23]. Magnetic separation is used to separate magnetic minerals from phosphate ore of the feebly magnetic ankerite, as noted in the Abu Tartur phosphate ore deposit of Egypt [24]. Practically speaking, crushing, grinding and screening methods are used to remove coarse-textured materials.…”

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The Beneficiation Processes of Low-Grade Sedimentary Phosphates of Tozeur-Nefta Deposit (Gafsa-Metlaoui Basin: South of Tunisia)

et al. 2018

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The enrichment of the low-grade-phosphate ore of the Tozeur-Nefta deposit was investigated using scrubbing-attrition, ball grinding and anionic/cationic reverse flotation in order to separate phosphate-rich particles from their gangue. The choice of the beneficiation process was based on the petrographic, mineralogical and chemical analyses. The petrographic and mineralogical studies have revealed the abundance of phosphatic (carbonate-fluorapatite-CFA) particles) coupled with carbonates (calcite, dolomite,) and silicates (quartz, illite, kaolonite) that constitute the (endo/exo) gangue of these ores. Chemical analysis has demonstrated that the raw phosphate sample contains low amounts of P 2 O 5 (12.0%) and MgO (4.9%) and high amounts of CaO (40.7%) and SiO 2 (20.5%). Microscopic observation/counting has shown that the release mesh occurs in the 71-315 µm size. Scrubbing-attrition, grinding and reverse flotation methods were applied to the +71µm fraction. Scrubbing-attrition tests of the 71-315 µm fraction have helped to improve the P 2 O 5 grade to 15.5%. Ball-grinding tests were used to reduce the coarse fraction +315 µm. Grounded materials were sieved to 71-315 µm and combined with the scrubbed fraction in the flotation feed. Reverse-flotation tests of the phosphate-rich fraction (71-315 µm) have helped to improve the P 2 O 5 grade to 27.1%, with a recovery rate of 92.4%.Minerals 2019, 9, 2 2 of 15 Currently, phosphate fertilizers are generally produced from primary-phosphate ores. Phosphate material can easily be separated from the gangue and concentrated by conventional beneficiation techniques (i.e. washing process). As a result of the concurrent increase in demand for phosphate products, and the continuous depletion of phosphate reserves, much more focus is made today on opportunities to recover phosphate ores from secondary sources (i.e. tailings and low-grade ore deposits). These new sources are continually investigated, as is happening now at the Hazara deposit in Pakistan (16% P 2 O 5 ) and the Kohe-lar deposit in Iran (5.01% P 2 O 5 ) [13,14]. Upgrading processes of sedimentary-type phosphate ores consist of separating the gangue minerals (silicates and carbonates) from the valuable phosphate material [15][16][17]. New processing techniques are needed to upgrade the low-grade phosphates to commercial-grade products (P 2 O 5 > 28%) [18]. The choice of the suitable beneficiation process requires a good knowledge of the mineral assemblages of the studied ore [19]. Several industrial processes are used worldwide for the enrichment of phosphate ores, ranging from simple mechanical preparation to more complex treatment schemes, which combine several methods such as flotation, magnetic, electrostatic and dense-media separation (DMS). Calcination is applied for the enrichment of phosphates that are rich in organic materials, like those of the Youssoufia deposit in Morocco [12], or that include a carbonated gangue, like those of Akashart's phosphates in Iraq [20]. Electromagnetic separation is used mainly for...

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