Influence of process parameters of dry high intensity magnetic separators on separation of hematite

Recovery of γ-Fe2O3 from copper ore tailings by magnetization roasting and magnetic separation

“…The saturation magnetization (Ms) of copper ore tailings, roasted slag (1,200°C for 30 min, airflow 5 L min −1 ), and magnetic concentrate at above optimum conditions were studied in VSM, and the results are shown in Figure 12. It was obvious that Ms of copper ore tailings increases from 4.85 to 11.55 emu/g after magnetizing roasting, which indicated that the magnetic properties may vary more or less under different roasting conditions [30]. Moreover, the maximum Ms of the magnetic concentrate was 12.94 emu/g.…”

Magnetic nanoadsorbents for micropollutant removal in real water treatment: a review

“…Besides the redox activity and surface charge properties (Abdel Maksoud et al 2020 ), low-cost synthesis and non-toxicity (Leone et al 2018 ), high selectivity (Song et al 2018 ; Asadi et al 2020 ; Nisola et al 2020 ; Wang et al 2020c , 2021 ; He et al 2021 ; Luan et al 2021 ), binding specificity (Vishnu and Dhandapani 2021 ), and excellent reusability (D’Cruz et al 2020 ; Hu et al 2020 ; Li et al 2020 ; Ahmad et al 2020b ; Vu and Wu 2020 ; Wang et al 2020c ; Nkinahamira et al 2020 ; Tabatabaiee Bafrooee et al 2021 ), a key feature of magnetic nanoadsorbents is that they can be separated in situ from adsorption-remediated waters in the form of a magnetic nanoadsorbent(s)–adsorbate(s) sludge by applying a strong enough magnetic field (Ambashta and Sillanpää 2010 ; Zaidi et al 2014 ; Simeonidis et al 2015 ; Moharramzadeh and Baghdadi 2016 ; Wanna et al 2016 ; Tripathy et al 2017 ; Mirshahghassemi et al 2017 ; Yeap et al 2017 ; Augusto et al 2019 ; Kheshti et al 2019a ; Mashile et al 2020 ; Brião et al 2020 ; Balbino et al 2020 ).…”

Application of dry high-intensity magnetic separation in upgrading low-grade iron ore of Rouina deposit, Algeria

“…Several researchers opted to apply the dry high intensity magnetic separation aiming to enrich low-grade iron ores [4,[8][9][10][11][12][13][14]16]. The results obtained by this method are satisfactory where a maximum product grade of 53.1% FeTotal is achievable with 19% yield as the magnetic product in lift roll magnetic separator (LRMS) at optimum conditions of variables.…”

“…The results obtained by this method are satisfactory where a maximum product grade of 53.1% FeTotal is achievable with 19% yield as the magnetic product in lift roll magnetic separator (LRMS) at optimum conditions of variables. Rare earth roll magnetic separator (RERMS) is also found to be efficient with a higher yield of 36.8% in the magnetic product grade of 49.5% FeTotal [9]. Further, magnetic separation studies of low-grade iron ore were carried out by using LRMS and found that a product of maximum of 51.2% FeTotal can be obtained from the low-grade ore assaying 35.9% FeTotal [17].…”