Basic Principles and Recent Advances in Magnetic …
Magnetic cell separation has become a key methodology for the isolation of target cell populations from biological suspensions, covering a wide spectrum of applications from diagnosis and therapy in biomedicine to …
Dynabeads Magnetic Bead Separation Technology
Magnetic bead separation using Dynabeads products consists of three simple steps: Bind—When added to a sample, Dynabeads magnetic beads bind to the desired target (cells, pathogenic microorganisms, nucleic acids, peptide, protein, or protein complex, etc.).This interaction relies on the specific affinity of the ligand on the surface of the …
Inertia-magnetic microfluidics for rapid and high-purity separation …
A label-free and biocompatible on-chip magnetic separation system for efficient extraction of sEVs from cell culture supernatant is proposed and the results tested by nanoparticle tracking analysis show that the recovery rate and purity of s EVs are superiorly exceeding the performance that the ultracentrifugation method can provide.
Separation of Copper-Nickel by Flotation and Magnetic Methods
At the INCO (International Nickel Co.) operation in Sudbury, Ontario, further separation of nickel from copper is accomplished by application of mineral dressing techniques to slow-cooled nickel mattes. These mattes contain about 50 pct Ni, 30 pct Cu, 20 pct S, and <1 pct Fe. They consist of grains of chalcocite (Cu2S) in a matrix of ...
High‐efficiency Ni 2+ ‐NTA/PAA magnetic beads with specific separation …
Compared with High‐Affinity Ni‐NTA Resin and Ni‐NTA Magnetic Agarose Beads, Fe 3 O 4 /MPS@PAA/NTA‐Ni 2+ nanocomposites exhibited higher separation efficiency and binding capacity towards His‐tagged GFP. Moreover, the selectivity and recyclability of them for the target proteins were maintained well after six cycles.
Green conversion of waste PET into magnetic Ni0·4Fe2·6O4/ (Fe,Ni
It should be mentioned that NFC comprises of core magnetic Ni 0·4 Fe 2·6 O 4 /(Fe,Ni) ... This indicates the high permanent magnetization characteristics of the earlier, which supports the facile magnetic separation of Ni 0·4 Fe 2·6 O 4 /(Fe,Ni)@carbon. According to the results obtained, PET can be effectively used as the carbon source for ...
Fast and highly selective separation of His-tagged proteins by Ni
The reuse of Fe 3 O 4 @Au/NTA-Ni 2+ magnetic nanocomposites in His-tagged protein separation was investigated (Fig. 8). From Fig. 8 a, it was clear that the Fe 3 O 4 @Au/NTA-Ni 2+ nanocomposites remained excellent specificity and high affinity towards target proteins in mixed protein solutions after recycling six cycles.
Magnetic Separators | How it works, Application
The use of magnetic separators offers multiple benefits. First, they contribute to the quality enhancement of products by eliminating magnetic particles. This results in increased consumer trust and regulatory compliance. Second, they protect processing machinery from potential damage caused by metal contaminants, reducing …
Phase separation and magnetic properties of Co–Ni–Al …
Among these alloys, Co 39 Ni 33 Al 28 has an A S near room temperature and a higher Curie temperature of 380 K. Such properties are desirable for application. This alloy was chosen for further investigation of phase separation and magnetic properties. Download : Download full-size image; Fig. 2.
Calcination of low-grade laterite for concentration of Ni by magnetic …
The main finding of this work was that magnetic separation is effective in recovering 48% of nickel from laterite, increasing the Ni grade in the recovered product from 1.5% to 2.9%, when prior to ...
Magnetic separation for recovering iron resources …
Magnetic separation for recovering iron resources from acid-leaching tailings of laterite nickel ore through mineral phase transformation - ScienceDirect. …
Physical separation of iron ore: magnetic separation
Magnetic separation. Magnetic nature of iron ores. Magnetite. Oxidized ores. Magnetic separators. Flow sheet. 9.1. Introduction. In the past 30 years, the world …
In situ preparation of magnetic nickel-containing
Incorporation of magnetic Ni NPs facilitates rapid separation from the reaction mixture simply by using an external magnet. In addition, carbonyl-containing and hydroxyl groups introduced on the surface of CNTs by water vapor decomposition and surface oxidation during H 2 O-CVD enable better Pd NP adsorption. DFT calculations …
Materials | Free Full-Text | High-Grade Ferronickel …
Nickel is widely used in industrial processes and plays a crucial role in many applications. However, most of the nickel resource mainly exists as nickel oxide in laterite nickel ore with complex composition, resulting in difficulty in upgrading the nickel content using physical separation methods. In this study, high-grade ferronickel concentrates …
Magnetic techniques for the isolation and …
Magnetic separation techniques have several advantages in comparison with standard separation procedures. This process is usually very simple, with only a …
Extraction of Nickel from Magnesia–Nickel Silicate Ore
Test results showed that a Ni concentrate with a Ni content of 11.41% and Ni recovery of 92.77% was achieved under the following optimal conditions: roasting …
Efficient enrichment of nickel and iron in laterite …
Abstract. The process of deep reduction and magnetic separation was proposed to enrich nickel and iron from laterite nickel ores. Results show that …
Ni/NiO Core/Shell Nanoparticles for Selective Binding and Magnetic …
Lee et al. [477] developed Ni/NiO core/shell nanoparticles for selective binding and magnetic separation of histidine-tagged proteins. Zeng et al. [478] extracted small extracellular vesicles by ...
Calcination of low-grade laterite for concentration of Ni by magnetic …
The main finding of this work was that magnetic separation is effective in recovering 48% of nickel from laterite, increasing the Ni grade in the recovered product from 1.5% to 2.9%, when prior to the separation the ore was calcinated at 500 °C for 1 h. Previous. Next. Laterite ore. Nickel.
High‐efficiency Ni2+ ‐NTA/PAA magnetic beads with …
Table 1 summarises the separation efficiency and binding capacity of non‐magnetic Ni‐NTA, magnetic Ni‐NTA and Fe 3 O 4 /MPS@PAA/NTA‐Ni 2+ nanocomposites used for separation of His‐tagged GFP. The binding capacity of …
Deep reduction/magnetic separation of laterite for concentration of Ni
The grinding-magnetic separation results of reduced briquettes show that concentrate containing 3.25%Ni, 1.20%Cu and 75.26%Fe is obtained and selective enrichment is achieved with a recovery of 82 ...
Magnetically steerable Fe3O4@Ni2+-NTA-polystyrene
The magnetic nature of the Fe 3 O 4 @Ni 2+-NTA-PS nanoparticles with respect to the magnetic field was measured in water using a VSM (Fig. 2). The magnetization-field curve exhibited no coercivity, implying that the nanoparticles are superparamagnetic in nature and, thus suitable for the magnetic separation of his 6 …
Magnetic Separation Technique Using High Temperature
A magnetic separation technique has been conducted to recycle the nickel (Ni) element from the waste fluid of electroless Ni plating processes.
Pomegranate-like Core–Shell Ni-NSs@MSNSs as a …
High saturation magnetic intensity was beneficial to realize high-efficiency magnetic separation. Ni-NSs@MSNSs catalysts could be rapidly (within 40 s) and entirely (no obvious weight loss) separated from …
Magnetic phase separation and exchange bias in off-stoichiometric Ni …
The magnetic phase separation and exchange bias effect in off-stoichiometric Ni2Mn1.4Ga0.6 alloy were reported. Spontaneous exchange bias after zero-field cooling was observed in this alloy. The magnetic nature of ground state was characterized as phase separation with non-percolated ferromagnetic domains in spin …
Expediting magnetic separation by using Ni wires for …
In this study a mm-sized high-efficiency magnetic separator using Ni wires as the field gradient enhancing bodies was developed. This enables the use of bioactive …
Calcination of low-grade laterite for concentration of Ni by magnetic …
The main finding of this work was that magnetic separation is effective in recovering 48% of nickel from laterite, increasing the Ni grade in the recovered product from 1.5% to 2.9%, when prior to the separation the ore was calcinated at 500 °C for 1 h.
Separation of Ni(II) Ions from Aqueous Solutions by Magnetic
The separation of Ni (II) from aqueous solutions by magnetic nanoparticles was investigated. Magnetic nanoparticles were prepared by coprecipitation of a Fe2+ and Fe3+ salt from aqueous solution ...
Ni/NiO Core/Shell Nanoparticles for Selective Binding and Magnetic …
Ni/NiO core/shell nanoparticles having high affinity with polyhistidine were synthesized by decomposition of a Ni surfactant complex followed by air oxidation. Ni/NiO nanoparticles showed selective and efficient binding to histidine-tagged proteins and easy separation by using a magnet. These provided a more convenient way to efficient purification of …
Recycling valuable metals from spent lithium-ion
The leached residue was subjected to magnetic separation in an XCGS-73 Davis Tube with a magnetic field intensity of 1000 Gs. Subsequently, the magnetic and non-magnetic materials were obtained, respectively, and they were dried in a vacuum oven at 358 K for 6 h. Then the Ni, Co and Mn contents in the magnetic material were …