EPA was first introduced in the lead-free malachite flotation. EPA owned a stronger affinity with malachite, which could enhance its recovery. The corrosive effect caused …
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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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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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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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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 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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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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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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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 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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minerals Article Reexamining the Role of Ammonium Ions in the Sulfidization, Xanthate-Flotation of Malachite Ruizeng Liu 1, Zhicheng Liu 2, Jianmin Li 3, Shunfu Ao 2, Bin Pei 1, Dianwen Liu …
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The micro-flotation results demonstrated HABTC was an excellent collector for malachite flotation and exhibited favorable selectivity for flotation separation of malachite from …
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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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Hydrodynamics factors which contr ibute to the kinetics of flotation such as agitation, air flow rate, ... "Hydroxamate flotation of malachite," Canadia Metal lurgical . Quarterly, no. …
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The majority of reagents currently used in mineral flotation processes are fossil-based and potentially harmful to the environment. Therefore, it is necessary to find …
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Malachite undergoes hydration and exhibits a weak hydrophobicity in the pulp [11].At present, the sulfide-xanthate flotation method is the most popular flotation technology in …
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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 …
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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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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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The malachite and calcite surfaces treated with CH 6 N 2 O 2 and Na 2 S·9H 2 O featured a flotation recovery rates of 82.51% and ∼ 20%, respectively, and achieved a …
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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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Why LA was first introduced as a sulfidization activator to enhance sulfidization flotation of malachite? Because of its structure? What might be the interaction? What is the …
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The natural malachite has been ground in the agate mortar till 2-10 m m; part of the sample obtained is used to draw the spectres I.R.; some part of the sample is treated with solution of …
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Semantic Scholar extracted view of "A novel decyl-salicyl hydroxamic acid flotation collector: Its synthesis and flotation separation of malachite against quartz" by Fangxu Li et al. …
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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 depletion of copper sulfide minerals, malachite has attracted increasing interest. Since malachite is a relatively soft mineral, with a Moh's hardness of 3.5–4 [], fines …
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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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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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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 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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