Comparison between the effect of microwave irradiation
X-ray diffraction and XPS characterization showed that the formation of more magnetic phases after chalcopyrite and pyrite treatment is the reason behind their increased magnetism. Dry magnetic separation of individual treated minerals at several magnetic field strengths from 0.5 Tesla to 2 Teslas was conducted. The results suggest …
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Superconducting pulsating high gradient magnetic separation …
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 ...
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The Effect of Microwave Pre-treatment on the …
Magnetic separation results showed arsenic rejection by 84.2%, and 76.3% in the case of enargite and tennantite binary mixtures with chalcopyrite; respectively. Keywords: microwave treatment; …
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Dithiouracil, a highly efficient depressant for the selective
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 ...
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(PDF) The Effect of Heat Treatment on Chalcopyrite
I. Florek, M. Lova ´ s and I. Murova ´, Intensification of magnetic separation of chalcopyrite ore by micro-wave radiation, Proceedings of the 4th Conference on Dielectric Heating and ...
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Performance evaluation of PHGMS technology for superfine chalcopyrite …
Chalcopyrite (CuFeS 2) and molybdenite (MoS 2) as typical sulfide minerals are very easy for co-flotation in practice, but their mutual separation consumes a large quantity of flotation reagents, particularly for superfinely associated chalcopyrite and molybdenite as encountered in most porphyry copper deposits. Pulsating high gradient magnetic …
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The Effect of Microwave Pre-treatment on the …
Moreover, magnetic separation of chalcopyrite binary mixtures with enargite and tennantite was performed. The results showed insignificant effects on the magnetic susceptibility of the two minerals …
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Magnetic properties of chalcopyrite and …
Magnetic properties of chalcopyrite and arsenopyrite for high-gradient magnetic separation with Crystal-Field Theory. Dai, Pulin. ; Yang, Jing. ; Wei, Zhicong. ; Zeng, …
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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 …
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Magnetic properties of chalcopyrite and …
Separating chalcopyrite from arsenopyrite using flotation has been a big challenge due to their similar float-ability. However, this challenging condition may be …
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Superconducting pulsating high gradient magnetic separation …
Again, it is the high magnetic induction available in the SPHGMS separator that contributed to the significantly strengthened magnetic force upon fine chalcopyrite minerals and consequently to the high recovery from slurry, while maintaining a high separation selectivity to the minerals, due to the pulsation effect in the SPHGMS process.
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Pulsating HGMS for industrial separation of chalcopyrite from …
Pulsating HGMS for industrial separation of chalcopyrite from fine copper-molybdenun co-flotation concentrate. Author links open overlay panel Luzheng Chen a, Tao Xiong a b, Dahe Xiong b, ... Chalcopyrite is weakly magnetic while molybdenite is diamagentic, with their magnetic susceptibilities at 0.840 × 10-6 m 3 /kg …
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Pulsating HGMS for industrial separation of chalcopyrite from …
Chalcopyrite (CuFeS 2) and molybdenite (MoS 2) as typical sulfide minerals are very easy for co-flotation in practice, but their mutual separation consumes a large quantity of flotation reagents, particularly for superfinely associated chalcopyrite and molybdenite as encountered in most porphyry copper deposits.Pulsating high gradient …
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Performance evaluation of PHGMS technology for superfine chalcopyrite …
Chalcopyrite (CuFeS 2) and molybdenite (MoS 2) as typical sulfide minerals are very easy for co-flotation in practice, but their mutual separation consumes a large quantity of flotation reagents, particularly for superfinely associated chalcopyrite and molybdenite as encountered in most porphyry copper deposits.Pulsating high gradient magnetic …
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Separation of Copper and Iron from Chalcopyrite in Molten …
The combination of molten-salt leaching and magnetic separation has been demonstrated as an effective way to separate copper and iron from chalcopyrite and prepare pure Cu 2 O and Fe 3 O 4. Owing to the water- and oxygen-free environment of molten CaCl 2 –LiCl, the chalcopyrite-derived oxides decomposed into Cu 2 O and Fe 3 …
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Pulsating HGMS for industrial separation of chalcopyrite …
DOI: 10.1016/J.MINENG.2021.106967 Corpus ID: 236259260; Pulsating HGMS for industrial separation of chalcopyrite from fine copper-molybdenun co-flotation concentrate @article{Chen2021PulsatingHF, title={Pulsating HGMS for industrial separation of chalcopyrite from fine copper-molybdenun co-flotation concentrate}, …
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Effect of lime (CaOH+) on chalcopyrite-arsenopyrite separation …
Findings demonstrate that CaOH + could decrease the magnetic moment of Fe atoms in chalcopyrite, deteriorating its separation from arsenopyrite via HGMS method. For a high-arsenic copper ore assaying 0.63 % Cu and 0.78 % As with chalcopyrite and arsenopyrite as the dominant copper-bearing and arsenic-bearing …
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Enhancing magnetism and magnetic separation of ultrafine chalcopyrite …
The results indicate that the PHGMS achieves a selective separation of chalcopyrite from talc; and under the optimized conditions, a chalcopyrite concentrate of 30.22% Cu grade with 75.79% ...
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New technology of pulsating high gradient magnetic separation
Chalcopyrite (CuFeS 2) and molybdenite (MoS 2) as typical sulfide minerals are very easy for co-flotation in practice, but their mutual separation consumes a large quantity of flotation reagents, particularly for superfinely associated chalcopyrite and molybdenite as encountered in most porphyry copper deposits.Pulsating high gradient …
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High-gradient magnetic separation mechanism for …
Abstract. Removing molybdenite from chalcopyrite by flotation has long been a challenge due to their similar floatability as sulfide minerals. However, the difference in the magnetic susceptibility of the two minerals may be employed to address this challenge. Recently, pulsating high-gradient magnetic separation (PHGMS) has been reported ...
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Effect of microwave pre-treatment on the magnetic properties …
The magnetic properties of minerals can be improved by using microwave treatment [6]. The effect of microwave radiation on a number of minerals, e.g., chalcopyrite, hematite and wolframite, exhibited a considerable increase in magnetic susceptibility after being exposed to 650 W of microwave radiation [6].
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(PDF) Magnetic separation of weakly magnetic copper minerals …
Abstract and Figures. High Gradient Magnetic Separation of chalcopyrite and bornite, both weakly magnetic copper minerals with mass susceptibilities of about 0.1 × 10-6m3/kg ...
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Superconducting pulsating high gradient magnetic separation …
Semantic Scholar extracted view of "Superconducting pulsating high gradient magnetic separation for fine weakly magnetic ores: Cases of kaolin and chalcopyrite" by Jinyue Xu et al. ... Separation of chalcopyrite from molybdenite is currently mainly carried out by flotation, but this process is costly because of the extensive use of inhibitors. ...
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High-gradient magnetic separation mechanism for separation …
Removing molybdenite from chalcopyrite by flotation has long been a challenge due to their similar floatability as sulfide minerals. However, the difference in the magnetic susceptibility of the two minerals may be employed to address this challenge. Recently, pulsating high-gradient magnetic separation (PHGMS) has been reported …
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High-gradient magnetic separation mechanism …
Recently, pulsating high-gradient magnetic separation (PHGMS) has been reported effective as an environmentally friendly and economical strategy for separating …
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Minerals | Special Issue : High Gradient Magnetic Separation …
Special Issue Information. Dear Colleagues, Modern high-gradient magnetic separation was initially triggered in the early 1930s. In the recent several decades, it has become one of the key technologies in the exploration of weakly magnetic ores, such as oxide irons, ilmenite, wolframite, and manganese, and in the removal of magnetic impurities ...
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High-gradient magnetic separation mechanism for …
Recently, pulsating high-gradient magnetic separation (PHGMS) has been reported effective as an environmentally friendly and economical strategy for separating …
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A novel approach for selective flotation separation of chalcopyrite …
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]. The final recoveries obtained ...
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Development of a high-gradient magnetic separator for …
Currently, the development of highly magnetic induction technology provides strong feasibility for this separation. In this work, we employed pulsating high-gradient magnetic separation (PHGMS) with highly magnetic induction (1.8T) to separate chalcopyrite and talc, and found that the PHGMS achieves a good separation of …
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Pulsating high-gradient magnetic separation of chalcopyrite …
The selective flotation of chalcopyrite from talc in practice is currently difficult and consumes a large amount of depressors, resulting in high production and environmental costs. The pulsating high-gradient magnetic separation (PHGMS) method has a strong potential for the effective separation of chalcopyrite and talc, based on their difference …
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