Recently, pulsating high-gradient magnetic separation (PHGMS) has been reported effective as an environmentally friendly and economical strategy for separating …

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% ...

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.

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 …

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}, …

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 …

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 …

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 ...

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 ...

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 ultrafine chalcopyrite from talc through surface oxidation treatment | Request PDF. Journal of Materials …

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 …

Recently, pulsating high-gradient magnetic separation (PHGMS) has been reported effective as an environmentally friendly and economical strategy for separating …

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 …

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. ...

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 …

@article{Dai2023EffectOL, title={Effect of lime (CaOH+) on chalcopyrite-arsenopyrite separation in high gradient magnetic separation: experiment and molecular simulation}, author={Pulin Dai and Mingyu Tao and Xiaowei Li and Zixing Xue and Jianwu Zeng and Luzheng Chen}, journal={Separation and Purification Technology}, …

This study briefly describes a 7.0T/100CGC low-temperature superconducting magnetic separator and discusses its separation principle as well as …

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 ...

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 ...

High gradient magnetic separation is a physical method isolating weakly magnetic particles from relatively nonmagnetic materials based on the difference of magnetic force acting on each particle. ... Pulsating HGMS for industrial separation of chalcopyrite from fine copper-molybdenun co-flotation concentrate. Miner. Eng., 170 …

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 ...

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 ...

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 …

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 …

Superconducting magnetic separation of chalcopyrite and molybdenite was studied, along with the effects of the magnetic flux density, slurry concentration, and pulsation amplitude on the separation. According to the force equilibrium model of magnetic particles that accumulated on magnetic matrices during the superconducting …

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 …

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…. …

The effects of microwave treatment on the floatabilities and magnetic susceptibilities of some sulfide minerals, namely, pyrite, chalcopyrite, galena and sphalerite, were studied. Pure mineral samples were prepared in -425+212-f.lm, -212+106-f.lm and -106+38-f.lm size fractions. Microflotation and magnetic separation tests were carried out

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% ...

Request PDF | Pulsating high-gradient magnetic separation of chalcopyrite and talc | The selective flotation of chalcopyrite from talc in practice is currently difficult and consumes a large ...

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 ...

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; …

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 …

Magnetic separation may offer a reliable method for the separation of chalcopyrite from talc [10]. The disparity in specific magnetisation coefficients of chalcopyrite (0.84× 10 −6 m 3 /kg) and talc (0.18 × 10 −6 m 3 /kg) is indicative of high …

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 …

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 ...

Description of PHGMS processes. A cyclic SLon-100 PHGMS separator was employed to carry out the separation test. As depicted in Figure 2, The key components of the separator include a magnetic yoke, magnetic poles, excitation coils, and a pulsating mechanism [].To ensure the full immersion of the rod matrix, water was initially poured …

Magnetic properties of chalcopyrite and arsenopyrite for high-gradient magnetic separation with Crystal-Field Theory. Dai, Pulin. ; Yang, Jing. ; Wei, Zhicong. ; Zeng, …

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 …