Exploring the Relationships between Gas Dispersion Parameters and Differential Pressure Fluctuations in a Column FlotationShow others and affiliations
2021 (English)In: ACS Omega, E-ISSN 2470-1343, Vol. 6, no 34, p. 21900-21908Article in journal (Refereed) Published
Abstract [en]
Flotation separation, which is the most important mineral beneficiation technique, is dependent on gas dispersion (hydrodynamic conditions). Thus, many investigations have focused on the precise determination of hydrodynamic conditions such as Reynolds number of the bubbles, bubble velocity, and bubble diameter. However, few studies have examined their relationships with pressure fluctuations in a column flotation. This study introduced the differential pressure fluctuations as an actual variable that could be considered to determine the collection zone’s hydrodynamic conditions in a cyclonic microbubble flotation column. In general, the outcomes indicated that superficial gas velocity had the most substantial relationship with the differential pressure fluctuations among other flotation factors (such as pump speed, superficial gas velocity, superficial water velocity, and frother dosage). Furthermore, a high coefficient of determination (R2 > 0.77) for the equation generated to assess the relationships demonstrated that differential pressure fluctuations could be used as a promising tool to determine the hydrodynamic parameters’ characteristics in the flotation columns.
Place, publisher, year, edition, pages
Elsevier, 2021. Vol. 6, no 34, p. 21900-21908
National Category
Mineral and Mine Engineering
Research subject
Mineral Processing
Identifiers
URN: urn:nbn:se:ltu:diva-87076DOI: 10.1021/acsomega.1c01955ISI: 000692901300007PubMedID: 34497885Scopus ID: 2-s2.0-85114329837OAI: oai:DiVA.org:ltu-87076DiVA, id: diva2:1593800
Note
Validerad;2021;Nivå 2;2021-09-14 (alebob);
Forskningsfinansiär: China Postdoctoral Science Foundation (2019M652024)
2021-09-142021-09-142023-09-05Bibliographically approved