During these processes, different chemicals and polymers are used in any stage to separate molybdenite from copper minerals. One of these reagents that use in Cu-Mo processing circuit is a flocculant. Flocculants are …
Enhancing the Performance of Cu-Mo Circuits Using. the Jameson Cell ia Lawson Glencore Technology, Australia. ABSTRACT It has been argued that, molybdenite particles, due to their shape, may be more sensitive to hydrodynamic effects than copper mineral particles. The platelet shaped molybdenite particles may align along …
To understand this metal separation and the geochemical process of molybdenite mineralization, we investigated fluid inclusions by microthermometry, Raman spectroscopy, and laser ablation inductively couple plasma mass spectrometry (LA-ICP-MS) microanalysis in low- and high-grade quartz veins of both mineralization stages.
Porphyry copper deposits (PCDs) are some of the most important sources of copper (Cu) and molybdenum (Mo). Typically, the separation and recovery of chalcopyrite (CuFeS2) and molybdenite …
Keywords: chalcopyrite-molybdenite separation; sodium sulfide; pulp potential; contact angle; ... molybdenite can be recovered from a copper-bearing molybdenite ore by removing 99% of the copper [8].
Typically, the separation and recovery of chalcopyrite (CuFeS2) and molybdenite (MoS2), the major Cu and Mo minerals, respectively, in PCDs are achieved by two-step flotation involving (1) bulk flotation to separate Cu–Mo concentrates and tailings (e.g., pyrite, silicate, and aluminosilicate minerals) and (2) Cu–Mo flotation to separate chalcopyrite …
All of the experimental results indicate that HA is a promising and cost-effective depressant for molybdenite during molybdenite-chalcopyrite separation over a …
Introduction. Separation of copper sulfides from molybdenite is commonly achieved through a two-stage flotation process. In the first stage the flotation of copper sulfides and molybdenite is promoted to generate a bulk concentrate, which is then treated in a second stage with sodium hydrosulfide (NaSH) at dosages of 2.5–3.0 kg/t to depress …
Electrochemically controlled flotation has been employed for molybdenite separation from copper sulfides extensively. By adjusting pulp potential one can depress copper sulfides while floating molybdenite [4]. Also, to optimize sodium sulfide consumption, nitrogen has been used instead of air, while pulp potential was controlled simultaneously [4].
Separation of the molybdenite from a concentrate of copper minerals involves complicated chemical processes for treating the particles with depressors which inhibit …
For the flotation separation of copper-molybdenum mixed concentrate, it can usually be divided into 3 steps. ① Pretreatment. The main purpose of pretreating the copper-molybdenum mixed concentrate is to remove the residual collectors in the slurry in the most reasonable and effective way.
A bulk sample of copper ore was obtained from the Sungun copper complex treating a porphyry copper-molybdenite deposit which is located in the geographical coordination of 43′ 46° east and 42′ 38° north …
In a few cases, the molybdenite is depressed by dextrin or starch, and the copper sulfide minerals are floated away from the molybdenite (Salter, 1964;Sutulov, 1970; Castro, …
Therefore, a process has been proposed for simultaneous up-gradation of molybdenum oxide and recovery of copper using controlled sulphuric acid leaching and cementation by scrap iron. The molybdenum oxide containing 70.00% MoO 3, 2.49% Cu 2 O, 1.97% Fe 2 O 3 and 11.22% SiO 2 obtained after roasting of molybdenite concentrate was used for the ...
A copper–molybdenum iso-flotability flotation process has been developed to efficiently improve the recovery of molybdenite from Duobaoshan porphyry Cu–Mo ores. The effects of flotation...
The flotation response of molybdenite and chalcopyrite was then tested individually without and with 20 ppm HA at different pH conditions. As can be seen in Fig. 1(b), in the absence of HA, the recovery of chalcopyrite remained above 97% regardless of the solution pH. In comparison, molybdenite flotation recovery was above 95% in the …
Introduction. Molybdenite (MoS 2) is the primary source of molybdenum (Mo), and approximately half of the Mo production is obtained from copper (Cu)–Mo sulfides, mainly porphyry Cu deposits (Ansari and Pawlik, 2007; Song et al., 2012; Hirajima et al., 2014).At present, the flotation separation of Cu minerals and Mo minerals in this type of ore is …
Porphyry copper deposits (PCDs) are some of the most important sources of copper (Cu) and molybdenum (Mo). Typically, the separation and recovery of chalcopyrite (CuFeS2) and molybdenite (MoS2), the major …
As can be seen, chalcopyrite was selectively separated from molybdenite over the entire pH range tested, where chalcopyrite recovery was over 80% for most of the pH range except for pH 11. Meanwhile, molybdenite flotation was effectively depressed with a recovery of approximately 20% except at pH 3.
understanding the factors that led to the separation of molybdenite from copper sulfides and gold. Geology and Sampling Strategy . Geological background of the Bingham Canyon deposit . The Bingham Canyon Cu-Mo-Au deposit is hosted by series of Late Eocene subvolcanic monzonitic intrusions (collectively called the Bingham Stock) emplaced into ...
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 …
A molybdenum (Mo) concentrate assaying 6.00% copper (Cu) and 19.01% Mo was magnetically sorted using a diamond-shaped steel rod medium mesh at a feed …
The giant Bingham Canyon porphyry Cu-Mo-Au deposit (Utah) is associated with Eocene subvolcanic intrusions. It shows a distinct metal zonation above a barren core, with dominantly shallow Cu-Au mineralization (Cu stage) following the early quartz monzonite porphyry (QMP) intrusion, and spatially deeper Mo mineralization (Mo stage) …
To understand this metal separation and the geochemical process of molybdenite mineralization, we investigated fluid inclusions by microthermometry, …
molybdenite can be recovered from Cu–Mo ores as a by-product with copper at levels as low as 0.01% Mo. Approximately half of the world's molybdenum production comes …
11 of pulp pH was mainta ined by lime in the Cu/Fe . separation, ... separate molybdenite from copper sulfide minerals unde r . low consumption of Na 2 S. As given i n T able 7, the IFF .
Almost half of the world's molybdenum reserves are in the form of molybdenum-copper porphyry ores. Due to the differences between the surface properties of molybdenite and copper sulfides, molybdenum (even at low levels and about 0.01%) can be obtained from these ores as copper by-products [].Processing of Cu–Mo ores …
In order to separate Cu and Mo minerals (mostly chalcopyrite and molybdenite), the strategy of depressing chalcopyrite while floating molybdenite has been widely adopted by using …
Porphyry-type deposits are the major sources of copper and molybdenum, and flotation has been adopted to recover them separately. The conventional reagents used for depressing copper minerals, such …
A molybdenum (Mo) concentrate assaying 6.00% copper (Cu) and 19.01% Mo was magnetically sorted using a diamond-shaped steel rod medium mesh at a feed …
A molybdenum (Mo) concentrate assaying 6.00% copper (Cu) and 19.01% Mo was magnetically sorted using a diamond-shaped steel rod medium mesh at a feed …
molybdenite, which makes it easier to separate them during subsequent flotation. This method leads to additional energy consumption and has not yet been used in industry. In addition, there has been a separation of chalcopyrite from a fine Cu-Mo mixed flotation concentrate by a pulsing high gradient magnetic separation process [12].
Separation of the molybdenite from a concentrate of copper minerals involves complicated chemical processes for treating the particles with depressors which inhibit copper floating and improve floating of the molybdenite. The pulp is stirred for a period of 24 to 48 hours, and it is washed with live steam.
Introduction The flotation separation of copper-molybdenum sulfides generally relies on the use of toxic and hazardous depressants such as cyanides, sodium sulfide/hydrosulfide, Noke's reagent (Bulatovic, 2007, Li et al., 2015, Pearse, 2005, Prasad, 1992), and thioglycolic acid and its salts (Bulatovic, 2007, Poling and Liu, 1987).
In this study, chitosan was explored in the copper–molybdenum sulfide mineral flotation separation as a potential selective depressant. The main observations and conclusions are: (1)
The Copper/Moly Separation Flowsheet One of the typical and quite successful treatment systems is studied. It resorts entirely to reagent control and flotation to separate the molybdenite from a …
This study briefly describes a 7.0T/100CGC low-temperature superconducting magnetic separator and discusses its separation principle as well as the effect of magnetic induction on chalcopyrite separation from molybdenite. A molybdenum (Mo) concentrate assaying 6.00% copper (Cu) and 19.01% Mo was magnetically sorted using a diamond-shaped …