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The main mineral of molybdenum is mo-lybdenite −0.012%. Sulfide minerals of pyrite are present in amounts up to 0.5%. According to the X-ray phase analysis, the content of the rock-forming ...
1. Crushing: The molybdenum ore is coarsely crushed by the jaw crusher, and then crushed to a reasonable particle size by the fine jaw crusher. 2. Grinding: The feeder is evenly fed into the ball mill, and the ore is ground to below 200 mesh by the ball mill + classifier.Make the particle size meet the requirements of flotation process. 3. Flotation …
Results of flotation experiments in seawater indicated that the effect of pH on copper and molybdenum flotation maximum recovery seems limited. On the other hand, pH drastically influences copper and molybdenum flotation kinetic constant, it decreased a lot with increasing pH, and results of pH 8.5 and 9.0 is quite similar.
Can be used over a wide pH range. FLOTICOR™ DP sulfide depressants, a safer solution to replace NaSH for molybdenum flotation, are part of our portfolio of flotation reagents for sulfide ores. To meet your mineral processing needs, we offer a wide range of products, including tailor-made collectors, xanthate-replacement collectors, and frothers.
The search for effective reagents for the flotation of non-ferrous metals from mineral raw materials is an actual problem. The article discusses the results of research on improving the technology of processing copper–molybdenum ores using a combined collector emulsion. The object of research was copper–molybdenum ore containing …
1. Introduction. 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).About 99% of the metal molybdenum is derived from molybdenite …
Cations like Ca²⁺ and Mg²⁺ are reported to have negative effects on the flotation of molybdenite in alkaline solution, and dispersants and oil collectors need to be added to restore the...
Abstract. The Sungun copper-molybdenum operation in Iran uses a typical copper-molybdenum flowsheet to produce separate copper and molybdenum …
Molybdenum is an important alloy element for metallurgical industry because of its high temperature stability. As the major mineral reserve for molybdenum, molybdenite (MoS2) is commonly found in ...
This paper study the Dexing copper-molybdenum flotation separation by using a new small molecule inhibitors named pseudothiohydantoin (DLC) and single-factor experiments were employed to confirmed ...
In this study, the precipitation flotation method was used to study the flocculation of precipitated particles by adding HA in the process of Fe 3+ treatment of molybdenum wastewater. The effects of pH value, amount of HA, reaction time, and other parameters on the molybdenum recovery rate in wastewater were studied.
Superconducting magnetic separation can effectively remove Cu from Mo concentrates. A non-magnetic product grading 0.46% Cu and 16.28% Mo was obtained from a Mo concentrate with a Cu content of 6.0% after a magnetic induction of 0.3 T and. magnetic induction of 5 T. In this process, the Cu removal rate was 92.33%.
Molybdenite (MoS 2 ), as the most important molybdenum (Mo)-containing mineral, 1–3 is frequently associated with Cu-bearing minerals and concentrated via flotation which …
Introduction. The selective separation of copper–molybdenum sulfide minerals by flotation mostly relies on the use of various depressants. Sodium hydrosulfide, sodium sulfide, cyanide and Noke's reagent (thiophosphorus or thioarsenic compounds) are routinely used as the selective depressants of chalcopyrite (Bulatovic, 2007, Pearse, …
1. Introduction. Flotation in sea water became a very important issue as sea water is the only available water resource in some arid areas where some large deposits of Cu-Mo sulfide ores (e.g., Atacama Desert, Chile) are located [1], [2], [3].. Molybdenite (MoS 2) as the most important molybdenum source is a sulfide mineral that consists of S Mo …
The flotation results revealed that treatment with 3.6 kg/t Na 2 S 2 O 5 in seawater at pH 5.5 significantly lowered the copper recovery from 97% to 11% and caused a modest reduction in the molybdenum recovery from 98% to 94% with a Cu-Mo separation efficiency of 83%.
This paper reviews the surface chemistry and floatability of molybdenite, usually by-product in Cu/Mo sulfide ores. Oil collectors are used to improve molybdenite flotation and the comparison with thiol collectors is discussed. Some inorganic ions are strong molybdenite depressants, such as, calcium ions and lime.
1. Introduction. Molybdenite (MoS 2) is the most important molybdenum (Mo) source and normally associated with copper sulfide ores (Hirajima et al., 2014, Li et al., 2018b, Song et al., 2012).Froth flotation, as an efficient physico-chemical technique to separate minerals, is widely used in MoS 2 recovery (Abkhoshk et al., 2010, Ai et al., …
The ultimate cumulative recovery (R ∞) and flotation rate constant (k) of molybdenite decreased in seawater, mainly due to the divalent cations, with the impact of …
The engineering practice further shows that the cyclone-static microbubble flotation column played a role in regaining better recovery for the existing flotation column, and the molybdenum recovery rate after the expansion was increased by more than 4 percentage points, and the loss of fine-grained molybdenite particles in tailings were ...
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 …
Pure molybdenum is extracted from ores by means of a flotation process. In this process the molybdenum is first obtained as the trioxide. Molybdenum trioxide is the main com-mercial product. It is the starting material for the production of molybdenum-steel and all ... Tungsten is a molybdenum antagonist. It inhibits the absorption of ...
Flotation tests were conducted in batch mode at 30% solids with pH and conditioning time as variables. Tests were normally conducted for 10 min to investigate the effect of Orfom ® D8 dosage. After rougher flotation tests were optimized, molybdenum selectivity studies were conducted as cleaner flotation tests with three stages of cleaning.
It is a frequent gangue mineral in sulfide ores, particularly in molybdenum and copper/nickel sulfide ores [4], [5], [6]. Therefore, the efficient separation of talc and molybdenite is beneficial to the comprehensive utilization of molybdenum resources. ... In addition, sodium silicate more effectively inhibits flotation of silicate minerals ...
Molybdenum is an essential metal used in high-strength steel alloys and other chemical applications (U.S. Geological Survey, 2018). To date, 95% of molybdenum production comes from molybdenite in porphyry Cu-Mo ores (John and Taylor, 2016). ... Flotation separation of chalcopyrite and molybdenite is an enormous challenge faced by …
The main mineral of molybdenum is mo-lybdenite −0.012%. Sulfide minerals of pyrite are present in amounts up to 0.5%. According to the X-ray phase analysis, the content of the rock-forming minerals is 96% and is represented by quartz, albite, clinochlore, feldspar, chlorite, potassium mi-croplagioclase and sericite.
Porphyry Cu-Mo deposits, which are the most important sources of copper and molybdenum, are typically processed by flotation. In order to separate Cu and Mo minerals (mostly chalcopyrite and …
The invention discloses a preparation method and an application of a non-molybdenum sulfide ore flotation inhibitor. The preparation method comprises the following step: reacting sulfide salt, carbon disulfide and water-soluble macromolecules under a stirring condition, thereby obtaining the non-molybdenum sulfide ore flotation …
Flotation results indicated that copper ions dramatically reduced the recoveries of copper and molybdenum, and increased the inhibition effect of sodium sulfide; that is, the flotation separation ...
Fine molybdenite is the stubborn part for molybdenite recovery during flotation process, which causes serious resource waste and financial loss. Our recent …
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