Effect of oxygen and micro-cracking on the flotation of low grade nickel sulphide ore

Edison Muzenda, Ayo S. Afolabi

Research output: Contribution to journalArticle

Abstract

This study investigated the effect of oxygen and micro-cracking on the flotation of low grade nickel sulphide ore. The ore treated contained serpentine minerals which have a history of being difficult to process efficiently. The use of oxygen as a bubbling gas has been noted to be effective because it increases the pulp potential. The desired effect of micro cracking the ore is that the nickel sulphide minerals will become activated and this activation will render these minerals more susceptible to react with potassium amyl xanthate collectors, resulting in a higher recovery of nickel and hinder the recovery of other undesired minerals contained in the ore. Higher nickel recoveries were obtained when pure oxygen was used as a bubbling gas rather than the conventional air. Microwave cracking favored the recovery of nickel.

Original languageEnglish
Pages (from-to)615-620
Number of pages6
JournalWorld Academy of Science, Engineering and Technology
Volume4
Issue number9
Publication statusPublished - 2010

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Flotation
Ores
Nickel
Oxygen
Recovery
Minerals
Sulfide minerals
Gases
Pulp
Potassium
Chemical activation
Microwaves
Sulfides
Air

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

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Effect of oxygen and micro-cracking on the flotation of low grade nickel sulphide ore. / Muzenda, Edison; Afolabi, Ayo S.

In: World Academy of Science, Engineering and Technology, Vol. 4, No. 9, 2010, p. 615-620.

Research output: Contribution to journalArticle

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