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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