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Wyszukujesz frazę "flotation banks" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Effect of air profiling and frother concentration on a flotation bank performance
Autorzy:
Maldonado, Miguel
Ramos, Ignacio
Pinto, Alonso
Gomez, Cesar O.
Powiązania:
https://bibliotekanauki.pl/articles/29596463.pdf
Data publikacji:
2023
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
flotation banks
air profiling
frother
Opis:
The impact of air distribution on the metallurgical performance of a flotation bank operating with a mineral slurry having a moderate and high frother concentration is assessed. A flotation bank of two and three 5L Denver cells was implemented, and air flow was distributed down the bank as increasing and decreasing profiles. It was observed that when operating the bank configurations with a moderate frother concentration (10 ppm DF 400) the increasing profile provided the highest Cu enrichment ratio at the expense of a slight reduction in Cu recovery. This increase in selectivity was mainly due to a significant reduction in the water recovery and mass-pull in the first cell. When the bank operated with a high frother concentration, i.e., well beyond the CCC, a significant increase in water recovery was observed, producing a significant loss in selectivity that could not be compensated by air profiling.
Źródło:
Physicochemical Problems of Mineral Processing; 2023, 59, 5; art. no. 186274
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The impact of batch flotation tests on the industrial plant prediction
Autorzy:
Vallejos, Paulina
Powiązania:
https://bibliotekanauki.pl/articles/24603655.pdf
Data publikacji:
2023
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
batch flotation
rougher banks
standard protocol
operating condition
Opis:
To predict the metallurgical results of industrial plants, laboratory batch flotation tests are carried out, relating both operations through scale-up factors. However, robust scale-up procedures and well-defined laboratory protocols are necessary to reach reliable results at industrial scale. In this paper, results from different flotation batch tests are presented, analysing the effect of batch protocol in terms of operating conditions, operator, ore type, water quality, and others on the metallurgical response. Additionally, the ability of batch responses to describe industrial operations and determine scale-up factors was analysed. Then, a sensitivity analysis was carried out, considering the effect of batch and industrial conditions on the estimation of scale-up factors. Results showed that the batch response significantly changes, depending on the operating conditions, flotation operator, and batch flotation machine, even for the same cell design. Additionally, it was observed that the batch recovery significantly changes when modifying ore type and water quality, which can cause changes in batch and/or industrial operation, affecting the scale-up factors. In addition, results showed that the scale-up factors varied significantly by changing operating conditions in a batch cell. This also occurs in plants when metallurgical performance changes, for example, due to a modification in launder design and/or operating condition, to increase recovery, or due to control limitations that prevent efficient metallurgical performance.
Źródło:
Physicochemical Problems of Mineral Processing; 2023, 59, 5; art. no. 177609
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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