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Wyświetlanie 1-2 z 2
Tytuł:
Effect of phosphate quality on foam generation during the phosphoric acid production process
Autorzy:
Anouar, Islaam
Jouraiphy, Rim
Essallaki, Hicham
Mazouz, Hamid
Yousfi, Samia
Boulif, Rachid
Essaid, Bilal
Bouamrani, Mouna L.
Powiązania:
https://bibliotekanauki.pl/articles/1447543.pdf
Data publikacji:
2021
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
phosphate rock
foam
organic carbon
carbonate
foamingability test
Opis:
The presence of organics materials in phosphate ores generates foam during the manufacture of phosphoric acid, thus affecting the production performance and the quality of the products. Today, in the phosphate industry defoamers are used to reduce the negative impact of foam phosphoric production. In the present work, we focused on root cause evaluation for foam generation during the phosphoric acid production process, we evaluated the effect of phosphate rock quality in terms of organic carbon (OC) and carbonate content, on foam generation using a laboratory protocol for foaming ability evaluation. The results show that there is a relationship between the volume of the foam generated and the values of those impurities, while the volume of foam generated is higher when the concentration of OC and Carbonate is high. In our work, we confirm that the foaming ability of the phosphate rock can be avoided if the concentration of organic carbon less than 0.1% and less than 3% for carbonate.
Źródło:
Physicochemical Problems of Mineral Processing; 2021, 57, 2; 48-57
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modeling and simulation of a gold concentrator plant implementing a dissolution loop method
Autorzy:
Özdemir, Erdem
Dixon, Richard
Saari, Juha
Kasymova, Diana
Tunc, Berivan
Bilal, Danish
Bayarmagnai, Enkhzul
Lang, Aleksandra
Koskenkorva, Kaija
Larkomaa, Jaakko
Powiązania:
https://bibliotekanauki.pl/articles/24085625.pdf
Data publikacji:
2023
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
simulation
dissolution loop
water matrix
gold
flotation
modeling
mass balancing
plant survey
Opis:
Mineral processing applications increasingly use recycled water to preserve freshwater natural resources and comply with environmental regulations. However, accumulating anions, cations, and reagents in the process water may affect plant flotation performance and production continuity. Therefore, many cost actions may be needed to mitigate the recycled water effects. Typically, the process water properties and their effects on flotation performance are unknown for a greenfield project. Often, the result is an over-scaling up of the process plant with an additional financial cost. The experimental methodology in the paper focuses on creating water for testing that is closer to the actual process water during the comminution and flotation process for any greenfield project. The scope of the study consists of creating possible process water, conducting flotation experiments, and simulation. In order to validate the dissolution loop method, refractory gold flotation plant conditions were selected in our Finland laboratory. The simulation results of dissolution loop flotation kinetics were compared with the actual plant mass balance. According to the comparative results, the process water created by the dissolution loop method has the same physical and chemical properties as the actual process water at the site except for SO4 -concentration. Moreover, comparing the simulation results of the experimental data and plant mass balance studies shows that the gold grade and recovery results in the simulation were lower than the actual plant mass balance.
Źródło:
Physicochemical Problems of Mineral Processing; 2023, 59, 5; art. no. 166377
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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