A Preliminary study of three-phase column flotation process monitoring using electrical capacitance volume tomography

A preliminary study of three-phase column flotation process using electrical capacitance volume tomography (ECVT) has been conducted. The purpose of this study is to investigate the possibility of ECVT method as a monitoring system by correlating the relative permittivity distribution (or three-dime...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2019-12, Vol.673 (1), p.12130
Main Authors: Haryono, D, Harjanto, S, Rahmandani, H F, Oediyani, S, Nugraha, H, Huda, M A
Format: Article
Language:English
Subjects:
Air flow
Capacitance
Correlation
Flotation
Flow velocity
Metallurgy
Monitoring
Monitoring systems
Permittivity
Process parameters
Silicon dioxide
Tomography
Zincblende
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Summary:A preliminary study of three-phase column flotation process using electrical capacitance volume tomography (ECVT) has been conducted. The purpose of this study is to investigate the possibility of ECVT method as a monitoring system by correlating the relative permittivity distribution (or three-dimensional image) with metallurgical performance (recovery of the process). Experiments were performed in a laboratory-scale flotation column with ECVT sensor embedded outside the pipe wall on the collection zone. The feed used was a synthetic ore consisting of sphalerite and silica with the purity of 99%. Process parameter used was air flow rate ranging from 2-4 l/m which each process was conducted for 10 minutes. The results showed that the ECVT method could observe the dynamic process of flotation, specifically in monitoring a feeding process and a separation process. They were indicated by increased and decreased relative permittivity distributions respectively. Relative permittivity signal and metallurgical performance have a good correlation and showed a positive correlation. These results show a prospect of ECVT method as the monitoring system in the flotation process, but further works need to be done for this monitoring system.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/673/1/012130