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Fig. 6 A shows that the flotation recovery of molybdenum increased from 45% to 80% after prolonging the flotation time from 3 to 8 min. The flotation recovery further increased to 90% with an additional flotation time of 7 min. Fig. 6 A presents that the final molybdenum recovery slightly decreased from 98% to 93% after the Na 2 S 2 …
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A copper–molybdenum iso-flotability flotation process has been developed to efficiently improve the recovery of molybdenite from Duobaoshan porphyry Cu–Mo ores.
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The main challenge for the selective flotation of copper and molybdenum (Cu-Mo) sulfide minerals in seawater is the formation of colloidal precipitates in strongly alkaline conditions. ... Cu-Mo concentrate that largely consisted of chalcopyrite and molybdenite, as well as a tiny amount of pyrite and quartz, was used in the flotation tests.
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An effective flotation approach is proposed for improving the recovery of molybdenite fines from a finely-disseminated molybdenum ore. To maximize the flotation recovery of molybdenum, process mineralogy of raw ore, contrast tests, optimization of operation conditions and particle size analysis were systematically investigated. Process …
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The efficient extraction of Cu and Au occurs through the segregation of sulfide liquids coupled with sulfide flotation, transporting these elements from magmas to the …
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Thus, this Special Issue focuses on recent advances in fine particles and bubble flotation that are worth further study and application. Meanwhile, this collection provides guidance for those engaged in research on fine flotation, featuring studies including, but not limited to, the following topics: fine-particle flotation, microbubble …
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The multi-element chemical analysis results (Table 1) show that molybdenum is the main available mineral resource (the content of 0.022%), and the phase analysis results (Table 2) show that the percentage of molybdenite is 71.75% in molybdenum ore, compared to 28.25% of wulfenite, molybdite and powellite in the form …
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Low flotation efficiency has been suffered in beneficiation of low-grade molybdenum ores due to finer size liberation and crystal anisotropy. As reported, polyethylene oxide (PEO) was proved to improve flotation efficiency of micro-fine molybdenite particles visibly. In this study, PEO was employed to investigate the influence on flotation of micro-fine …
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Feldspar occurs in the pegmatite rocks and are associated with quartz and muscovite near the top of the granite (Fig. 1) (Pollet-Villard et al., 2017, Simmons et al., 2016, Swanson and Veal, 2012).The feldspar storage is approximately 10 billion tons worldwide, mainly occurring in North America, Europe, and East Asia (Zhang, …
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During the Cu–Mo ore flotation using an optimally dispersed microemulsion of the combined collector agent, a collective Cu–Mo concentrate was obtained with a copper content of 18.2% with an ...
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Copper-molybdenum mineralization is hosted by quartz-feldspar porphyries intruded into slates-hornfels and pelitic sandstones belonging to the …
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Copper-molybdenum mineralization is hosted by quartz-feldspar porphyries intruded into slates-hornfels and pelitic sandstones belonging to the Ordovician (439 - …
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Kerosene, as a conventional collector, has been widely used in molybdenum flotation (Chen et al., 2013, Li et al., 2015, Liu et al., 2012, Zhao et al., 2018). However, with utilization of the lower-grade and fine-disseminated ores, it was difficult to collect very fine molybdenite particles from ores solely due to the weak collecting ability ...
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One of the challenges for the flotation of copper-molybdenum ores is the presence of copper sulphide minerals in molybdenum concentrate. Small grains of …
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This copper–molybdenum (Cu–Mo) sulfide ore is generally mined from various locations in the mining site; thus, the mineral composition, oxidation degree, (PDF) Mineralogical Prediction on the Flotation Behavior of Copper and Molybdenum Minerals from Blended Cu–Mo Ores in Seawater | Gde Pandhe Wisnu Suyantara - Academia.edu
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Molybdenite is the principal mineral in molybdenum extraction, and it is recovered from Mo-Cu ores or molybdenum ores using the froth flotation technique [3,4,5]. However, molybdenite is an …
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Table 2 Copper and molybdenum phase analysis result of ore samples Element Phase Mass fraction/% Distribution/% Cu Copper sulfide 0.482 98.17 Copper oxide 0.009 1.83 Mo Molybdenum sulfide 0.0105 91.30 Molybdenum oxide 0.001 8.70 As seen from Tables 1 and 2, copper, molybdenum, gold and silver are main metal elements …
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Introduction. Approximately 50% of the world's molybdenum production comes from Cu–Mo ore as a by-product (Bulatovic, 2007). The flotation recovery of molybdenite from porphyry Cu–Mo ore is consistently lower than that of the copper sulfides (Bulatovic et al., 1998, Bulatovic, 2007, Triffett et al., 2008).
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Molybdenum—an element of the VIb group of the Periodic system of elements. The atomic number of molybdenum is 42, the atomic mass is 95.94; configuration of the outer electron shell of an atom 4d 5 5s 1, melting temperature 2622 °C, boiling 4840 °C, density 10.23 g/cm 3.. Mo–Fe system.Iron and molybdenum form …
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Molybdenite flotation in the bulk copper/molybdenum flotation circuit at Kennecott Utah Copper was studied by means of a combination of plant metallurgical surveys, laboratory flotation tests ...
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Abstract: The flotation of unoxidized and oxidized molybdenite fines is a challenging job world-wide. In this work, dodecylamine (DDA) was developed as a …
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Molybdenum (Mo) is a rare and strategic mineral resource (Zhang et al., 2019). It is widely used as an alloying element in high-performance stainless steel and in high temperature and corrosion resistant metal alloys for missiles and aircraft (Kelebek et al., 2001). ... Separation of hematite and quartz in a cationic collector flotation system ...
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The ore samples were obtained from Hulunbeier, Inner Mongolia, China. X-ray diffraction (XRD) and chemical compositions were used to understand the mineral compositions of the samples (Fig. 1 a and b).The analyses showed that the samples contained 71.28% SiO 2, 12.51% Al 2 O 3, and that chalcopyrite, molybdenite, and …
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Therefore, the bulk concentrates processes characteristics of a higher grade of molybdenum but a lower grade of copper. The bulk concentrate, which was obtained from the China Molybdenum Co., Ltd, with 0.95% Cu and 7.23% Mo collected from a day shift, was used for the flotation separation of copper-molybdenum sulphides in all of …
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Conventionally, separation of copper and molybdenum (Cu-Mo) ores has been achieved with sulfide ore bulk flotation followed by selective molybdenum flotation with the addition of a copper sulfide ...
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The flotation performances of molybdenite from quartz as a function of kerosene concentration were investigated. As shown in Fig. 2, the Mo recovery and grade increased gradually as kerosene concentration increased and decreased in the kerosene concentration of more than 200 mg/L.It should be noted that, for the micro-fine …
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This molybdenum flotation circuit, based on 250-500 tons per 24 hours is designed for low-grade molybdenum ore having high-grade streaks and with pyrite-quartz gangue. It is also basically sound for …
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In order to recover about 35% feldspar and 35% quartz from a molybdenum tailings in Inner Mongolia, the flotation separation of quartz and feldspar by sodium oleate in the presence of magnesium ions was studied. Through the optimization of flotation conditions, at pH=11.0, Mg 2+ ion dosage of 300 g/t, and sodium oleate …
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DOI: 10.1016/j.mineng.2023.108343 Corpus ID: 261059156; Selective flotation separation of spodumene and quartz with carboxylated chitosan as depressant @article{Dai2023SelectiveFS, title={Selective flotation separation of spodumene and quartz with carboxylated chitosan as depressant}, author={Linquan Dai and Bo Feng …
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1. Introduction. Approximately 50% of the world's molybdenum production comes from Cu–Mo ore as a by-product (Bulatovic, 2007).The flotation recovery of molybdenite from porphyry Cu–Mo ore is consistently lower than that of the copper sulfides (Bulatovic et al., 1998, Bulatovic, 2007, Triffett et al., 2008).In 2004, the price of …
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