Influence of Bacillus subtilis on the surface behavior and separation of talc and chlorite minerals
- 16 September 2022
- journal article
- research article
- Published by Walter de Gruyter GmbH in Tenside Surfactants Detergents
- Vol. 59 (6), 524-533
- https://doi.org/10.1515/tsd-2022-2435
Abstract
Bacillus subtilis was used as a bio-surface modifier to improve the floatability of talc mineral (Mg3Si4O10(OH)2) in the talc ore. The surface behavior of chlorite mineral as the main associated gangue with talc mineral was studied in the presence of B. subtilis using zeta potential, scanning electron microscopy, and Fourier-transform infrared spectroscopy techniques. The floatability of both minerals was investigated as a function of pH, contact time, and concentration of B. subtilis. The results showed that the zeta potential of the talc mineral was strongly influenced by the treatment with B. subtilis. The maximum separation efficiency of talc from chlorite was achieved at pH 4. A talc concentrate with 98% quality and about 95% recovery was prepared from a binary talc-chlorite mixture containing 85% talc under optimum conditions of 8 × 105 cells/mL B. subtilis, pH 4, 35°C, and a contact time of 10 min.Keywords
This publication has 39 references indexed in Scilit:
- Coal – Mycobacterium phlei Interaction and its Effect on Coal CleaningTenside Surfactants Detergents, 2013
- Adsorption of Paenibacillus polymyxa and its impact on coal cleaningFuel Processing Technology, 2013
- Dolomite-apatite separation by amphoteric collector in presence of bacteriaJournal of Central South University, 2013
- Bacterially induced phosphate–dolomite separation using amphoteric collectorSeparation and Purification Technology, 2013
- Application of Bacillus subtilis for reducing ash and sulfur in coalEnvironmental Earth Sciences, 2012
- Talc–serpentine interactions and implications for talc depressionMinerals Engineering, 2012
- Minerals bioprocessing: R & D needs in mineral biobeneficiationHydrometallurgy, 2010
- Bacterial adhesion: From mechanism to controlBiochemical Engineering Journal, 2010
- Biocoagulation and its Application Potentials for Mineral BioprocessingThe Open Mineral Processing Journal, 2009
- Interaction of Pseudomonas putida with kaolinite and montmorillonite: A combination study by equilibrium adsorption, ITC, SEM and FTIRColloids and Surfaces B: Biointerfaces, 2008