An investigation into the effect of various ions and their ionic strength on the flotation performance of a platinum bearing ore from the Merensky reef

Manono, Malibongwe; Corin, K.C.; Wiese, J.G.

doi:10.1016/j.mineng.2012.03.035

Cited by 44 publications

(35 citation statements)

References 19 publications

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“…This was shown by the significant reduction in the bubble size, and the increase in foam height, foam collapse time, and foam recovery with increasing ionic strength. These findings could help explain the increase in solids and water recovery with increasing ionic strength in 3-phase flotation systems (Manono et al, 2012;Corin et al, 2011).…”

Section: Resultsmentioning

confidence: 82%

“…Previous research findings have shown that increasing the ionic strength of plant water resulted in an increase in the amount of solids and water reporting to concentrate (Manono et al, 2012;Corin et al, 2011). This effect has been attributed to an enhancement in froth stability in the presence of high amounts of ions in the water system which possibly led to gangue particle activation, and hence the reported increase in the amount of solids and water recovered to the concentrate.…”

Section: Introductionmentioning

confidence: 90%

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The effect of ionic strength of plant water on foam stability: A 2-phase flotation study

Manono

Corin

Wiese

2013

Minerals Engineering

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Section: Resultsmentioning

confidence: 82%

Section: Introductionmentioning

confidence: 90%

The effect of ionic strength of plant water on foam stability: A 2-phase flotation study

Manono

Corin

Wiese

2013

Minerals Engineering

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“…However, froth stability will still be affected by solid particles and the results of froth stability in a 2-phase system are not always transferable to a 3-phase system. Manono et al (2012) found that the increased IS was linked to the increased froth stability when solids were present.…”

Section: Scopementioning

confidence: 98%

“…These ions have frothing properties when in a slurry, reducing the repulsive forces between the mineral particles and the air bubbles. An increase in IS has been found to the reduce the bubble size in the pulp and therefore increase froth stability due to increased water content and smaller bubble size in the froth (Manono et al, 2012), and subsequently increase the entrainment of gangue minerals.…”

Section: Ionic Strength (Is)mentioning

confidence: 99%

Considering the effect of pulp chemistry during flotation on froth stability

Sheni

Corin

Wiese

2018

Minerals Engineering

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Considering the effect of pulp chemistry during flotation on froth stability Nanji Ruth Sheni A thesis submitted to the faculty of Engineering and the Built Environment, University of Cape Town in fulfilment of the requirements for the degree of Master of Science in Engineering June 2016 I would first like to thank God who has given me the ability to will and to do His good pleasure. I would like to acknowledge and express my deepest gratitude to the following people without whom this thesis would not be possible:  My supervisors, Dr Kirsten Corin and Mrs Jenny Wiese, who have patiently borne with me through all the highs and lows of this period and have been great supports, advisors and friends.  Prof Cyril O'Connor who has brought insight and enthusiasm into this project.  The CMR laboratory staff, especially Mrs Shireen Govender and Mr Kenneth Maseko, who have always helped me and been a pleasure to work with.  My dad, Prof DDD Sheni, and mum, Dr JEN Sheni, who have supported and challenged me to be better every step of the way.  My brothers, Joshua and Dauda Sheni, who still find my work inspiring.  My friends and extended family, with special mention to Nana, Onyinye, Melvin, Thobile, Rose, Andre, Cornell and Ellah Peek, Margreth and Eddie, who always gave me a reason to smile and kept me motivated.

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“…The difference in water recovery might be associated with the ionic strength induced by lime and soda ash. Corin (2014), Corin et al (2011) and Manono et al(2012;2013) reported that the ratio of water and mass recoveries in flotation changed with the ionic concentration as a result of the modification of froth. In this study the ionic strength was calculated based on the amounts of lime and soda ash used to adjust pH 10.…”

Section: Flotationmentioning

confidence: 99%

Interactions of clay minerals and their effects on copper-gold flotation

Cruz¹

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The continuous depletion of mineral resources has resulted in the increased processing of low grade complex ores that in some cases contain clay minerals. These gangue minerals are often associated with ores containing copper and gold and can cause problems in mineral flotation. Some of the observations from industry when high clay ores are processed include the high flotation pulp viscosity, over-stable froth or absent froth, and lower grade and recovery. Clay minerals are small flat particles that occur in colloidal size ranges with charges on their surfaces that may change with pH. These characteristics allow them to interact with water, reagents and other gangue minerals present in flotation pulp. Given these properties and interactions it is Publications during candidature Peer reviewed journals publications relevant to the thesis:

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An investigation into the effect of various ions and their ionic strength on the flotation performance of a platinum bearing ore from the Merensky reef

Cited by 44 publications

References 19 publications

The effect of ionic strength of plant water on foam stability: A 2-phase flotation study

The effect of ionic strength of plant water on foam stability: A 2-phase flotation study

Considering the effect of pulp chemistry during flotation on froth stability

Interactions of clay minerals and their effects on copper-gold flotation

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