Adsorption of SIP E. coli onto quartz and its applications in froth flotation

Farahat, Mohsen; Hirajima, Tsuyoshi; Sasaki, Keiko; Aiba, Yuuki; Doi, Kunio

doi:10.1016/j.mineng.2007.10.019

Cited by 44 publications

(24 citation statements)

References 10 publications

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“…There are two uses of microorganisms in mineral processing: (1) bioleaching, a long-established technique, in which microorganisms assist in the dissolution of metallic ions for metal recovery from ores; and (2) biobeneficiation, in which microorganisms act as surface modifiers, depressants, collectors or dispersing agents to enhance the separation of minerals by either flotation or flocculation [48].…”

Section: Biofrothersmentioning

confidence: 99%

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Flotation Frothers: Review of Their Classifications, Properties and Preparation

Khoshdast¹

2011

TOMPJ

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Abstract:The importance of frothers in flotation is widely acknowledged, particularly in terms of their role with respect to bubble size, and the stability and mobility of the froth phase. These factors play a significant role in the kinetic viability of the process, and the overall recovery and the grade that can be achieved from a flotation cell or circuit. About 60 years ago, Wrobel [1] presented a comprehensive review of flotation frothers, their action, properties and structures. However, during recent six decades flotation reagent technology has undergone considerable evolutions and innovations. The aim of the present review is to provide an updated, comprehensive database comprising recent developments in flotation frother technology as well as some historical aspects. Different types of flotation frothers are discussed regarding to their classifications, properties, and preparation methods. New classification schemes have been suggested in parallel with introducing new characterization criteria. New classes of frothers are actually conventional frothers modified by incorporating certain functional "group" or "atoms" into their molecular structure. Like particle surface modifiers, frothers are also influenced by biotechnology, leading to introducing a new class of frothers named as "biofrothers".

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Section: Biofrothersmentioning

confidence: 99%

“…This bacterium was later used as a collector of calcite and magnesite by Botero et al [75]. Farahat et al [48] found that Escherichia coli can well work as a collector for quartz.…”

Section: Biofrothersmentioning

confidence: 99%

Flotation Frothers: Review of Their Classifications, Properties and Preparation

Khoshdast¹

2011

TOMPJ

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“…In the process of beneficiation, adsorption of bacterial cells on the surface of minerals is thought to be important, and the selective adsorption of bacteria cells on different minerals is required to alter the surface properties so as to realize mineral separation [1][2][3][4][5][6][7]. There have been a number of reports on adsorption capability of bacteria cells onto mineral surface, only a few papers focus on the selective adsorption behavior [8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Selective adsorption of Mycobacterium Phlei on pyrite and sphalerite

Jia

Wei

et al. 2011

Colloids and Surfaces B: Biointerfaces

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“…In bioflotation, microorganisms adhere to the surface of an ore and change its surface characteristics. The adhesion may be passive, and due to abiotic interaction of microbial cell wall and ore surface [1], or it may be accompanied by active oxidation/reduction of ore elements by bacteria [2]. Different microbial species have been used in bioflotation.…”

Section: Introductionmentioning

confidence: 99%

“…Different microbial species have been used in bioflotation. Among others, the following species have been more frequently used: Thiobacillus ferrooxidans and Acidithiobacillus ferrooxidans as pyrite depressants in flotation of sulfide minerals [3][4][5][6][7][8][9], E. coli as a collector of quartz [1], Staphylococcus carnosus and Bacillus firmus as collectors of apatite [10], Paenibacillus polymyxa as surface modifier in iron ore flotation [11], Mycobacterium phlei as collector for hematite [12], Bacillus subtilis as dolimite depressant [13], and Rhodococcus opacus as collector of hematite in hematite-quartz flotation [14].…”

Section: Introductionmentioning

confidence: 99%

Coal flotation using a biosurfactant from Pseudomonas aeruginosa as a frother

Fazaelipoor

Khoshdast

Ranjbar

2010

Korean J. Chem. Eng.

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A biosurfactant-producing bacterial species (Pseudomonas aeruginosa) was grown in a mineral solution with gas oil as the source of carbon and energy. The biosurfactant was recovered from the solution by collecting the foam on the surface and drying. It had critical micelle concentration of 100 ppm. Froth characterization showed that the biosurfactant was superior to methyl isobutyl carbinol (MIBC) in terms of froth height and stability. The biosurfactant was examined in coal flotation as a frother. The combustible matter recovery of 72-79% with 10-15.5% ash content supporting 55-57.5% separation efficiency seemed promising enough to introduce the biosurfactant from Pseudomonas aeruginosa as a new frother.

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Adsorption of SIP E. coli onto quartz and its applications in froth flotation

Cited by 44 publications

References 10 publications

Flotation Frothers: Review of Their Classifications, Properties and Preparation

Flotation Frothers: Review of Their Classifications, Properties and Preparation

Selective adsorption of Mycobacterium Phlei on pyrite and sphalerite

Coal flotation using a biosurfactant from Pseudomonas aeruginosa as a frother

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