A modal examination of the products produced by thecopper flotation rougher-scavenger circuit reveal important information regarding the limits to the efficiency of the process, imposed by mineralogy, fragmentation andflotationcapacity. Let’s discusses various aspects ofrougher flotationcircuit performance and how to evaluate its results .
Nov 01, 2011·Rougher flotation testswere conducted in Denver cells on a laboratory scale, and metallurgical indicators such ascopper recovery,copper concentrategrade, and concentration and enrichment ratios were compared with those obtained under similar conditions but using conventional collectors and frothers for the industrialflotationofcopper sulphide ores.Read more +
May 16, 2016· Metallurgical ContentACopper FlotationFlowsheetCOPPER MININGCRUSHINGCOPPERORECOPPER ORE STORAGEGRINDINGCOPPERORECOPPERFLOTATIONCIRCUITCOPPER THICKENING AND FILTERINGPROCESS CONTROLSCopperFlotationProcess SummaryFlotation ofCopperOres Although basic porphyrycopper flotationand metallurgy has remained virtually the same for many …Read more +
Testsindicate that sphalerite recovery of theflotationconcentrate in the laboratorytestingwas The totalrougher copper flotationtime was 7.5min.Rougher FlotationOfCopperSulphide Ore UsingRougher flotationofcoppersulphide ores using biosolids e from wastewater treatment plants e and humic acids e a component of biosolids e as collector and frother yielded acoppersulphideRead more +
Nov 01, 2011· Thecoppersulphide ore was homogenised and sieved in a ROTAP to produce samples with a size fraction in the range of 38–300 μm forrougher flotation tests. The distribution of this size fraction, which follows a Gaudin–Schuhmann-type size distribution, is shown in Fig. 1 .Read more +
Mar 01, 2009·Flotationresponse forcopperoxide composite using AM28 as thecoppercollector. Total AM28 and MIBC doses for bothTestsA and B were 1200 g/t and 50 g/t, respectively. Download : Download full-size image; Fig. 5.Coppergrade–recovery relationship from therougherscavengerflotation testfor thecopperoxide composite.Read more +
Figure 3 shows plant sampling results of the Buenavista del Cobre plant IIrougherline’scoppergrade and recovery together with HSC Sim simulation model predictions. The model was based on the laboratory batchtests(Fig. 2), calibrated with a scale up factor and cell-by-cell froth recovery parameters.Read more +
Jul 13, 2020· *Rougherconcentrate grades for 1997tests, cleaner concentrate grades for 2002tests+Flotationstage recovery ++ Gravity andFlotation(Gravity recovery for F2, F3, F4, and F6 were 78%, 78%, 77%, and 63%, respectively) Currenttestwork Program (2020) Samples from Nalunaq were taken in 2016, as detailed in the project's Technical Report 2.The sample tested was taken from the top of pillars ...Read more +
Typically,roughermolybdeniteflotationand recovery from bulkcopper/molybdenum concentrates involves the use of alkalisulfides, Nokes reagents, cyanides, oxidants, and/or thermal treatment to depresscoppersulfide minerals. The bulkcopper/molybdenum feed generally varies from 0.2% Mo to 1.0% Mo, and with traditional reagents the single-stagerougher flotationrecovery of molybdenite ...Read more +
Feb 11, 2020· ACopperconcentrate of 29.6% Cu and 29.4% Fe, with 73.1 % recoverycopperin un-optimized laboratory batchtests. Magnetite (Fe₃O₄) concentrate grading 64.8% Fe or (93.9% Fe₃O₄)Read more +
Outotec TankCell e630 flotation unit. Its large capacity makes the Outotec TankCell e630 particularly suitable for rougher and scavenger duties in copper, copper-molybdenum, gold and other base metal applications. The unit has a diameter of 11 meters and a lip height of approximately seven meters.Read more +
Figure 12.15 Effect of aeration oncopper rougherscavengerflotationfrom a pyrrhotite-containingcopperore. Airflow is 5 L/min. Table 12.13 Effect of Na2S and Na2SO3 oncopper flotationfrom altered ore using potassium amyl xanthate as collector Depressant usedRead more +
An aeration stage was applied both at the head of copper flotation (copper rougher feed) and after regrinding of the copper rougher tailings, before gold/pyrite selective flotation. Also, different collector regimes, involving sodium iso-butyl xanthate (SIBX) and N-butoxycarbonyl-nbutyl thionocarbamate (XD5002), have been tested.Read more +
Description. Typically, rougher molybdenite flotation and recovery from bulk copper/molybdenum concentrates involves the use of alkalisulfides, Nokes reagents, cyanides, oxidants, and/or thermal treatment to depress copper sulfide minerals. The bulk copper/molybdenum feed generally varies from 0.2% Mo to 1.0% Mo, and with traditional reagents the single-stage rougher flotation recovery of …Read more +
Only rougher flotation was undertaken in the 1997 test work program. Two composite samples (350 Level and 450 Level Composites) were tested during the 2002 test work program. Flotation feed grades...Read more +
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