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microwave pretreatment of a refractory gold in benin

microwave pretreatment of a refractory gold in benin

refractory gold ore89 Haque K E used microwave to dispose of arsenical pyrite and gold concentrate with pyrite the gold leaching rate reached 9810 Liu Quanjun etc made a test for a gold mine in Guizhou province The ore without microwave pretreatment could be hardly leached in cyanide On the other hand the cyanide leaching of gold ore... As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant plan.

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  • Microwave pretreatment of a double refractory gold ore

    Microwave pretreatment of a double refractory gold ore

    Sep 01 2007 · With regards to the application of microwaves to refractory gold ores Haque 1987a Haque 1987b has studied the microwave pretreatment of refractory sulphidic ores and achieved gold extractions of over 98 However there is no information published on the microwave processing of the double refractory gold ores

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  • Experimental Study on Microwave Pretreatment with some

    Experimental Study on Microwave Pretreatment with some

    Abstract The microwave pretreatment of a typically refractory flotation gold concentrate was investigated The results demonstrated that a maximum gold recovery of 97 was achieved and that gold recoveries of the refractory gold concentrate quickly increased to the maximum with microwave heating

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  • Pretreatment Process on Refractory Gold Ores with As

    Pretreatment Process on Refractory Gold Ores with As

    Kyuesi and Haque etc have studied the role of microwave in the gold extraction process of arsenicbearing refractory gold ore 89 Haque K E used microwave to dispose of arsenical pyrite and gold concentrate with pyrite the gold leaching rate reached 98 10 Liu Quanjun etc made a test for a gold mine in Guizhou province The ore without microwave pretreatment could be hardly leached in

    more
  • Leaching of Refractory Gold Ores by Microwave Irradiation

    Leaching of Refractory Gold Ores by Microwave Irradiation

    Dec 10 2013 · The experimental results show that the amount of gold extracted increases with microwave leaching temperature The results demonstrate that microwave irradiation techniques can be applied effectively and efficiently to the leaching of refractory gold ores This is a preview of subscription content log in to check access

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  • refractory ore in crusher

    refractory ore in crusher

    microwave assisted refractory gold processing Gold Ore Crusher 2267 Microwave Assisted Pretreatment of Refractory Gold 2269 Microwave Assisted Spent get price refractory ore crushing equipment in benin

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  • refractory ore gold and pretreatment

    refractory ore gold and pretreatment

    Microwave pretreatment of a double refractory gold ore Abstract Double refractory gold ores such as Barricks Goldstrike ore contain both pyrite and carbonaceous matter and the latter results in the loss of gold from solution during cyanide leaching

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  • Microwave pretreatment of a double refractory gold ore

    Microwave pretreatment of a double refractory gold ore

    In this research microwave roasting of a double refractory gold ore was investigated as an alternative method and the results were compared to those obtained by conventional roasting The compositional changes of the ore during roasting were determined by thermogravimetric analysis TGA

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  • Experimental Study on Microwave Pretreatment with some

    Experimental Study on Microwave Pretreatment with some

    The microwave pretreatment of a typically refractory flotation gold concentrate was investigated The results demonstrated that a maximum gold recovery of 97 was achieved and that gold recoveries of the refractory gold concentrate quickly increased to the maximum with microwave heating time Adding additives during microwave heating process was helpful to improve the leaching rate of gold

    more
  • Optimizing the alkaline oxidation pretreatment of a

    Optimizing the alkaline oxidation pretreatment of a

    Biooxidation BIOX pretreatment of refractory gold concentrates using mixotrophic and chemolithotrophic bacteria on the gold extraction during cyanidation indicated 914 gold could be extracted by mixotrophic bacteria for 14 days and it was 18 higher than the extraction level of direct cyanidation of the untreated concentrate

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  • refractory ore gold and pretreatment

    refractory ore gold and pretreatment

    Before leaching the gold ore must be crushed and grinded into small particles usually particle size varies between 30 and 180 μm Free milling ores are ready for leaching after crushing and grinding whereas refractory ores need pretreatment It is important to pretreat a refractory ore before leaching to achieve better gold extraction

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  • Leaching of Refractory Gold Ores by Microwave Irradiation

    Leaching of Refractory Gold Ores by Microwave Irradiation

    Dec 10 2013 · The present paper attempts to assess the effects of microwave irradiation on the leachability of refractory gold ores Characteristics of the crystal structure and microstructure of the ores were determined by xray structural analysis XRD and scanning electron microscopy SEM before and after microwave irradiation Compared to conventional processes microwave leaching processes

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  • COMPARISON OF CYANIDE AND THIOSULPHATE

    COMPARISON OF CYANIDE AND THIOSULPHATE

    Nanthakumar et al 2007 tested microwave pretreatment with conventional roasting for a double refractory gold ore where both sulphides and carbonaceous matter were present Roasting temperatures of 650˚C or over were required to convert the pyrite to hematite and

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  • gold refractory ores microwave assisted recovery

    gold refractory ores microwave assisted recovery

    DYNA Open Journal Systems Universidad Nacional de Colombia It was found that after applying electromagnetic waves in the microwaves The recovery rate of refractory gold ores through traditional means can be microwaveassisted breakage International Journal of

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  • Gold Refractory Ores Microwave Assisted Recovery– Rock

    Gold Refractory Ores Microwave Assisted Recovery– Rock

    Gold Refractory Ores Microwave Assisted Recovery XSM is a leading global manufacturer of crushing and milling equipment Gold Refractory Ores Microwave Assisted RecoveryXSM also supply individual Gold Refractory Ores Microwave Assisted Recovery crushers and

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  • pretreatment of refractory gold ore with microwaves

    pretreatment of refractory gold ore with microwaves

    Microwave pretreatment of a double refractory gold ore ScienceDirect Double refractory gold ores such as Barricks Goldstrike ore contain both pyrite and carbonaceous matter and the latter results in the loss of gold from sol Get Quotation

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