Selective flotation separation of molybdenite from …
As strategic metals, Copper (Cu) and molybdenum (Mo) are widely used in modern industry [1], [2], [3], [4].Porphyry Cu-Mo ores are one of the most significant sources of Cu and Mo, they are primarily associated in porphyry Cu-Mo ores in the form of chalcopyrite and molybdenite [5], [6], [7].Typically, the beneficiation of chalcopyrite (CuFeS 2) and molybdenite (MoS 2) from …
Copper and Molybdenum Separation Process
There are two common methods for the separation of copper and molybdenum, one is floating molybdenum to suppress copper, and the second is floating copper to suppress molybdenum. Among them, floating molybdenum …
Effect of the electrochemical impact on copper …
The impact is achieved both by electrodes immersed in the flotation pulp or by using preliminary produced catholyte for pulp preparation. Effective copper-pyrite and copper-molybdenum flotation separation can be achieved under air conditions at significantly reduced amounts of reagents used, latter leading to improved environmental impact.
Utilization of Flotation Wastewater for Separation of …
The effective copper-molybdenum separation (molybdenite 93.22%, chalcopyrite 10.77%) can be achieved under the conditions of immersion pretreatment for 10 days with aeration at an air flow rate of 50 cm 3 /min in the wastewater, 350 mg/L of kerosene collector, 100 mg/L of MIBC frother, and an initial pH of 7. The results obtained achieved the ...
Effects of pH and pulp potential on selective separation of Molybdenite …
In such a condition, the recovery of 92.88% and the separation efficiency of 90.03% were achieved in flotation of molybdenite, comprising only 3% of copper minerals. In this research, selective flotation of Mo from the Sungun mine Cu-Mo concentrate was evaluated in different operating conditions.
Oxidation-reduction effects in the flotation of copper sulfide …
The addition of sodium sulfide has a significant effect on Eh and has significantly reduced it. Due to the flotation of molybdenite at lower potentials and the depression of copper sulfide minerals by reducing Eh, the addition of sodium sulfide leads to the separation of liberated copper and molybdenite minerals in the rougher stage of flotation.
Effect of sodium sulfide waste water recycling on the separation …
After adding a certain amount of sodium sulfide to the recycling, the depression of chalcopyrite performed well and the pulp potential maintained at a relatively lower level. Moreover, the pulp potential was an available parameter to control the flotation separation of chalcopyrite and molybdenite, which made the method easily applied to industry.
CN110124871B
An interface regulation and control method for flotation separation of copper-molybdenum bulk concentrates comprises the following steps: 1) adding 7-10kg/t of mixed potential regulator of sodium sulfide and sodium hydrosulfite, regulating the potential of the ore pulp to-200-300 mV, and regulating the pulp for 3 minutes; 2) adding 30-50g/t of polydimethylsiloxane, and acting …
Molybdenite flotation from copper/molybdenum …
Existing flotation practice for the separation of molybdenite from copper/molybdenum concentrates generally results in low Mo recovery and requires many stages offlotation. This practice ... Fig. 2-Effect of pulp pH on single-stage flotation for the Morenci Cu/ Mo sample at a constant ozone conditioning time of 30 min. MORENCI COPPER/MOLY ...
A new attempt for low-alkalinity flotation separation of …
Moreover, the highly alkaline pH levels of the pulp will depress molybdenite, gold, and silver minerals, resulting in the loss of valuable minerals. ... L. Ou, H. Han, F. Jiang, P Stephen, J. Chen, J. Peng, A case study of the separation of copper-gold sulfide ore from pyrite using a novel flotation reagent scheme: Insight from first-principles ...
The flotation separation of molybdenite from chalcopyrite …
The bulk Cu-Mo concentrate used for the flotation separation of molybdenite from copper sulfides in bench-scale flotation experiments was supplied by China Molybdenum Co., Ltd. ... The pulp pH was adjusted to a desired value by dilute HCl or NaOH solutions. In the initial stage of the flotation, the depressant PAM-ATU, the collector IPETC or ...
Pulsating HGMS for industrial separation of chalcopyrite …
At a magnetic induction of 7 T, a pulp concentration of 20% and a feed velocity of 5 L/min, the grade and recovery of Cu in the magnetic product were 19.64% and 81.59%, respectively, whereas the ...
Copper and Molybdenum Separation Process
According to statistics, nearly 75% of copper and 50% of molybdenum in the world are produced from copper-molybdenum ores. 12.31 The porphyry-type copper ore is the main type of copper-molybdenum ore, in which copper-molybdenum mainly exists in the form of chalcopyrite and molybdenite.
Effects of pH and pulp potential on selective separation of Molybdenite
A novel process for separating copper and molybdenum from bulk Cu–Mo concentrate was proposed by combining PWL with Hallimond tube flotation, in which the …
Selective separation of copper-molybdenum sulfides using humic …
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).It is desired to replace these aggressive chemicals …
A new attempt for low-alkalinity flotation separation of …
Lime is widely used as a depressant for pyrite due to its abundance and low cost [8]. However, because of the similar surface properties of chalcopyrite and pyrite and the presence of unavoidable ions such as Cu 2+, a substantial amount of lime (5–12 kg/t) is required to effectively depress pyrite [9].The extensive use of lime leads to several production problems, including …
A novel approach for selective flotation separation of …
Selective separation of copper and molybdenum sulfide minerals is one of the research focuses currently in flotation of sulfide minerals [3]. ... SO 4 2−, MoO 4 2−) formed in the process of pretreatment were dissolved into the pulp, and hydrophobic surface of molybdenite was continuous exposed [16]. The differences of hydrophilic and ...
A process mineralogy approach to optimize molybdenite …
The Sungun copper-molybdenum operation in Iran uses a typical copper-molybdenum flowsheet to produce separate copper and molybdenum concentrates through flotation and regrinding of the rougher concentrates arising from the primary circuit. ... created suitable conditions for the separation of copper sulfide and molybdenite minerals from gangue ...
Separation of Copper-Molybdenum Flotation Concentrate …
Separation of chalcopyrite from molybdenite is currently mainly carried out by flotation, but this process is costly because of the extensive use of inhibitors. 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 …
Separation of Copper-Molybdenum Flotation …
Separation performance of a superconducting magnetic separator at a magnetic induction of 5 T, a pulp concentration of 25%, and a feed velocity of 2 L/min. (a) Yield; (b) Grade; (c) Recovery.
Separation of Copper-Molybdenum Flotation …
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 Molybdenum and Copper in Porphyry …
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.
Selective separation of copper-molybdenum sulfides using humic …
At a magnetic induction of 7 T, a pulp concentration of 20% and a feed velocity of 5 L/min, the grade and recovery of Cu in the magnetic product were 19.64% and 81.59%, respectively, whereas the ...
Selective separation of copper-molybdenum sulfides …
2 . Abstract . Humic acids (HA), a major component of humus or soil, was explored as a selective depressant for molybdenite during the flotation separation of molybdenite and chalcopyrite.
(PDF) Oxidation-reduction effects in the flotation of copper …
The addition of sodium sulfide has a significant effect on Eh and has significantly reduced it. Due to the flotation of molybdenite at lower potentials and the depression of copper sulfide minerals by reducing Eh, the addition of sodium sulfide leads to the separation of liberated copper and molybdenite minerals in the rougher stage of flotation.
Process for separating molybdenite from a molybdenite-containing copper
Sulfur dioxide reacts with the water in the flotation pulp to form sulfurous acid (H 2 SO 3 ) which depresses copper sulfide minerals. ... the separation of molybdenite from the copper sulfides present in the concentrate is accomplished by either depressing the molybdenite with certain reagents while floating the copper sulfides or conversely ...
Separation of Copper-Molybdenum F... preview & related …
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 …
Effect of low dissolved oxygen on chalcopyrite-molybdenite separation
However, for some special flotation separation systems, such as the flotation separation of copper–molybdenum mixed concentrate, due to the natural floatability of molybdenite is better than chalcopyrite, chalcopyrite inhibition is generally used in the flotation separation of copper–molybdenum mixed concentrate (Park et al., 2020b, Yin et ...
Separation of Copper-Molybdenum F... preview & related …
(2022) Wang et al. Minerals. Separation of chalcopyrite from molybdenite is currently mainly carried out by flotation, but this process is costly because of the extensive use of inhibitors. This study briefly describes a 7.0T/100CGC low-temperature superconducting magnetic separator and …
Oxidation-reduction effects in the flotation of copper sulfide …
This study aimed to investigate the effect of pulp potential on the flotation behavior of copper sulfide minerals (including chalcopyrite, chalcocite, covellite, and bornite), molybdenite and pyrite tailings in copper and molybdenum processing circuits of Sungun complex; the following results were obtained: