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Flotation experiments were conducted on a synthetic malachite ore prepared by mixing 10 g malachite with 90 g quartz. All flotation tests were carried out using a 1.5 L Denver …
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At pH 6.50, with 8 mg/L SDA, effectively recovering malachite from quartz was achieved by reverse flotation, in which 92.71% of malachite was recovered and 91.91% of quartz was removed, coupled ...
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We study the effects of the growth phase of Rhodococcus opacus on the floatability of malachite. We find that bacteria in stationary phase show more than two-fold …
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Bis-minerophilic groups can improve the flotation performance of the collector and reduce the use concentration. In this study, the benzohydroxamic acid derivatives, phthaloyl …
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Malachite is one of the most important copper-bearing oxide minerals; however, it shows poor floatability prior to sulfidization under the thiol collector system. This study …
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Notably, malachite with ammonium sulfide ions had a significantly higher flotation recovery than malachite with an excess of sodium sulfide ions, as concerns of sulfidization types.
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A wide range of organic polymers are utilized in the mineral industry as flotation agents, serving specific modifying roles like depressants, dispersants, or flocculants …
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Copper oxide ores, including malachite [Cu 2 (CO 3)(OH) 2], are indeed essential sources of industrial copper.These ores undergo several techniques to extract copper from the ore, …
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When the PX dosage reached 1000 mg/L, the malachite flotation recovery reached the maximum value of 88.76 %. On the other hand, the calcite flotation recovery stayed low …
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The flotation performance of malachite was examined through flotation tests conducted using the XFG-II flotation machine located in Jilin, China. The flotation tank had a …
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The flotation experiments were performed in an in-house built Hallimond tube (dimensions shown in Figure S8) with a total volume of 150 mL. For conditioning, malachite (1 …
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Bis-minerophilic groups can improve the flotation performance of the collector and reduce the use concentration. In this study, the benzohydroxamic acid derivatives, phthaloyl hydroxamic acid …
WhatsApp: +86 18221755073
When the pH is higher than 10, numerous hydroxide anions exist in the pulp, which can competitively adsorb with xanthate anions on the malachite surface, thus decreasing the …
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The effects of the bacterial growth phase on the malachite flotation were investigated in a well-controlled Hallimond tube system. Rhodococcus opacus, which is one of …
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While for malachite, its flotation recoveries increased from 38.26% to 78.62%, and then to 79.41% with nitrogen flow rate increasing from 50 to 200 mL·min −1, and then to 250 …
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Therefore, a new sulfidization flotation process was developed to promote the efficient recovery of malachite. In this study, Cu 2+ was used as an activator to interact with …
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The flotation behavior of the ammonia-modified and bare malachite as a function of Na 2 S concentration was evaluated, and the result is shown in Fig. 1.When low-concentration …
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With the gradual depletion of copper sulfide resources, efficient flotation technologies for the recovery of copper oxide minerals, such as malachite, have received …
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Materials. The XRD of malachite, quartz, and calcite were shown in Figure 1.The element analysis of malachite, quartz, and calcite were listed in Table 1. −75 + 38 μm fractions …
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The flotation behaviors of both minerals illustrated that SDA was an effective collector for quartz and hardly collected malachite. During reverse flotation, with 8 mg/L SDA, …
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Recently, several studies have shown the positive effect of sulfidization flotation on malachite surfaces and its enhancing methods. Therefore, this paper was focused on the …
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In this study, the flotation separation performances of malachite from calcite were investigated using a new chelating collector S-carboxymethyl-O, O'-dibutyl dithiophosphate …
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The single mineral flotation results indicate that it may be possible to separate malachite from calcite by sulfidization-xanthate flotation. Hence we test the separation …
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A natural malachite sample was obtained from the Lupe mine, Puebla, Mexico. The sample was crushed, hand-sorted and dry-ground to obtain different fractions for different …
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In the flotation of malachite, the most widely used method is to use xanthate collectors to float malachite minerals in the presence of sulfidizing reagents, viz. sulfidization …
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Flotation experiments showed that LA had a significantly promoting effect on malachite sulfidization flotation. Adsorption experiments and SEM-EDS results indicated that LA improved the adsorption of S (II) species …
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In this study, the flotation behavior of malachite was investigated using hydrophobic talc nanoparticles (TNs) as collectors. To improve the floatability of TN-deposited malachite, various experimental parameters were …
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We study the effects of the growth phase of Rhodococcus opacus on the floatability of malachite. We find that bacteria in stationary phase show more than two-fold higher …
WhatsApp: +86 18221755073
The flotation results indicate that the PX dosage is a key factor determining the flotation separation results of malachite and calcite. When its dosage reaches 1000 mg/L, the …
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In this study, the effect of the dissolved components derived from malachite and calcite on the flotation behavior and surface characteristics of both minerals was investigated.
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