scholarly journals Mineralogical and Technological Aspects of Phosphate Ore Processing

2019 ◽  
pp. 59-65
Author(s):  
A. Elbendari ◽  
V. Potemkin ◽  
T. Aleksandrova ◽  
N. Nikolaeva
Keyword(s):  
Phosphate Ore ◽  
Ore Processing

The Effect of Ca2+, Mg2+, SO42- and PO43- on Phosphate Ore Flotation

2014 ◽  
Vol 881-883 ◽  
pp. 1670-1673
Author(s):  
Xian Bo Li ◽  
Zhi Hong Liu ◽  
Qin Zhang ◽  
Song Mao ◽  
Long Jiang Li
Keyword(s):  
Great Influence ◽  
Inorganic Ions ◽  
Experimental Results ◽  
Reverse Flotation ◽  
Single Factor ◽  
Flotation Reagents ◽  
Phosphate Ore ◽  
Ore Processing ◽  
Flotation Performance ◽  
Single Factor Experiment

In the process of recycling phosphate ore processing wastewater, the accumulation of inorganic ions and the flotation reagents have a great influence on the flotation performance when they reach to a certain concentration. This paper studied the effect of Ca2+, Mg2+, SO42- and PO43- on the reverse flotation of phosphate ore through the single factor experiment. The experimental results show that Ca2+, Mg2+ and PO43- have less effect on the flotation performance, and that a certain amount of PO43- in the ore pulp can reduce the dosage of acid and improve the flotation result. SO42- has a significant effect on the reverse flotation of phosphate ore and the concentration of SO42- should be controlled under 1 g/L in the backwater utilization.

scholarly journals Increasing the efficiency of phosphate ore processing using flotation method

2021 ◽  
Vol 248 ◽  
pp. 260-271
Author(s):  
Tatyana Aleksandrova ◽  
Abdalla Elbendari
Keyword(s):  
Sodium Tripolyphosphate ◽  
Low Grade ◽  
Reverse Flotation ◽  
Technological Parameters ◽  
Tall Oil ◽  
Valuable Component ◽  
Phosphate Ore ◽  
Ore Processing ◽  
Flotation Method ◽  
Tall Oil Fatty Acids

The paper presents flotation of two phosphate ore samples of different origin. Statistical analysis was used to study the effect of operating parameters on flotation efficiency. The paper proposes to increase the efficiency of flotation processing of magmatic phosphate ore with a low grade of the valuable component (P2O5 = 10.88 %), containing nepheline and feldspars, by means of direct anionic flotation. Authors present an optimization of anionic flotation using tall oil fatty acids mixed with anionic phospholane as an anionic collector. The effect of adding soda ash to compensate for the influence of calcium cations on technological parameters of P2O5 flotation was examined. The results of studying the flotation of nepheline ore (flotation tailings of magmatic phosphate ore) showed that replacement of phospholane with oxyethylated isotridecanol allowed to obtain a high-quality concentrate. It was estimated that with the addition of Na2CO3 in the amount of 2,000 g/t, a concentrate was obtained with the grade and recovery of phosphorus pentoxide equal to 39.15 and 94.19 %, respectively. The paper proposes to increase the efficiency of flotation processing of sedimentary phosphate ore with a low grade of the valuable component (P2O5 = 22.5 %), containing gypsum and quartz, by means of desliming followed by anionic or cationic reverse flotation. Tall oil fatty acid with anionic phospholane was used as a collector in anionic reverse flotation, and amine was used in cationic reverse flotation. Sodium tripolyphosphate was used as a P2O5 depressant. It was found to be an effective depressant in both anionic and cationic flotation. When analyzing the statistical plan, it was estimated that the maximum grade of the valuable component in the concentrate (P2O5 = 31.23 %) and the recovery to concentrate of 95.22 % were obtained in the chamber product at amine consumption of 950.88 g/t and sodium tripolyphosphate consumption of 500 g/t.

Low-melting glasses based on phosphate ore processing products

2000 ◽  
Vol 57 (5-6) ◽  
pp. 149-151
Author(s):  
O. F. Babadzhanova ◽  
I. N. Yashchishin
Keyword(s):  
Phosphate Ore ◽  
Ore Processing

scholarly journals Mg and Cd biosorption by native bacteria form Djebel Onk mine (Algeria)

2021 ◽  
Author(s):  
Hakim Rabia ◽  
Malek Ould Hamou ◽  
Katarzyna Kasperkiewicz ◽  
Tomasz Krzykawski ◽  
Monika Malicka ◽  
...  
Keyword(s):  
Developing Countries ◽  
Metal Accumulation ◽  
Specific Substrate ◽  
Bacterial Strains ◽  
Phosphate Ore ◽  
Ore Processing ◽  
Wide Ph Range ◽  
Conventional Methods ◽  
Ph Range

Abstract Mining and processing of phosphate ore are one of the most important branches of the economy in developing countries, including Algeria. However, this activity can negatively influence the environment, as huge amounts of waste, which contains dangerous metals, are released during ore processing. Therefore, in line with environmental needs, conventional methods of ore beneficiation should be gradually replaced with safe, biotechnological methods that involve (among others) the biosorption phenomenon. This work aimed at the investigation of biosorption abilities of native microorganisms, isolated from Djebel Onk ore (Kef Essnoun region, Algeria). Examined bacterial strains differed in their efficiency of metal accumulation. In the vast majority of native bacteria, the content of Cd or Mg found was higher than in a reference B. subtilis strain. Incubation of phosphate ore with selected bacterial strains (for 20 minutes and at different pH) significantly increased the recovery of Mg and Cd. Thus, we showed that biosorption could be much more effective for native bacteria isolated from the specific substrate. We have shown that Bacillus sp. HK4 strain can be used to remove various metals over a wide pH range, and it can be considered in the development of eco-friendly measures to clean ore and post-flotation waste.

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