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; …
Pulsating high-gradient magnetic separation of chalcopyrite …
DOI: 10.1016/j.mineng.2022.107410 Corpus ID: 246346334; Pulsating high-gradient magnetic separation of chalcopyrite and talc @article{Xian2022PulsatingHM, title={Pulsating high-gradient magnetic separation of chalcopyrite and talc}, author={Yong-jun Xian and Yang Hong and Yirong Li and Xiaowei Li and Song Zhang …
Magnetic properties of chalcopyrite and arsenopyrite for
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% ...
Comparison between the effect of microwave irradiation
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 ...
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 …
(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 ...
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 ...
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 …
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% ...
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}, …
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 …
Magnetic separation using superconducting magnets
Practical aspects of high gradient magnetic separation using superconducting magnets. A. Cieśla. Engineering, Materials Science. 2003. Since the 1970s, magnetic separation has been increasingly used for purification of liquid, such as heavy-metal ion removal from laboratory waste-water, purification of kaolin clay in the…. …
Superconducting 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 …
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 …
Magnetic properties of chalcopyrite and arsenopyrite for …
Separating chalcopyrite from arsenopyrite using flotation has been a big challenge due to their similar floatability. However, this challenging condition may be partially solved by employing their difference in magnetic susceptibility. As a matter of fact, pulsating high-gradient magnetic separation (PHGMS), as an environment-friendly and economic …
Magnetic properties of chalcopyrite and arsenopyrite for …
The magnetic susceptibility of chalcopyrite is larger than that of arsenopyrite, although its "magnetic" iron content (30.52%) is lower than that of arsenopyrite (34.30%), as the electrons of Fe ions in the chalcopyrite preferentially overcomes the splitting energy (Δ t) at high-spin state and increases its magnetic …
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 …
(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 ...
High-gradient magnetic separation mechanism for separation …
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% ...
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.
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 ...
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 …
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 …
Application of superconducting magnetic separation to …
separated by normal magnetic separation can be separated by superconducting magnetic separation. Studies (Liu L. et al., 2017) have shown that chalcopyrite is a paramagnetic material with average magnetic susceptibility of 67.53 × 10 -9 m 3 /kg.
Enhancing magnetism and magnetic separation of …
Enhancing magnetism and magnetic separation of ultrafine chalcopyrite from talc through surface oxidation treatment | Request PDF. Journal of Materials …
(PDF) Selective Separation of Chalcopyrite from Galena
This is the reason why this non-toxic depressant achieved the selective depression of galena from chalcopyrite, leading to efficient flotation separation. XFG−40 mL flotation machine with the ...
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 …
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 …
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].
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 …
