The effect of reagent addition strategy on the performance of coal flotation
MINERALS ENGINEERING, vol.17, no.6, pp.745-760, 2004 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 17 Issue: 6
- Publication Date: 2004
- Doi Number: 10.1016/j.mineng.2004.01.005
- Journal Name: MINERALS ENGINEERING
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.745-760
- Keywords: flotation froths, coal, adsorption, modelling, image analysis, RANK BRITISH COALS, FROTH STABILITY, FINE PARTICLES, BUBBLE-SIZE, BENEFICIATION, ADSORPTION, BEHAVIOR
- Ankara University Affiliated: No
Abstract
The recovery and grade of concentrates obtained by flotation is partly dependent upon froth structure. The flotation froth structure can be modified, and hence the flotation performance modified, by the addition of reagents. A direct control system was developed which permitted pre-determined addition profiles of reagent and water to-be added to a cell. A series of experiments were performed using different strategies of reagent (Triton x-405) addition. for the flotation of Bickershaw coal. A transputer enhanced Micro-Vax Computer was employed to grab images of flotation froths and to process them quantitatively in a parallel procedure. Using image processing techniques characterization of froth structures was achieved. The image processing procedures that were intended to run on-line, were examined and developed using video tapes of experimental runs, off-line.