magnetic separation ni

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Magnetic precipitate separation for Ni plating waste …

The separation ratios of the magnetic Ni precipitates formed by the decomposition reaction from the Ni plating waste liquid which contains Ni and Ni 3 P …

Selective sulfidation of metal compounds | Nature

As a promising alternative to flotation, magnetic separation of Co and Ni from Al, Mn and Li was demonstrated at 82.1% product purity and 84.8% recovery …

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.

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.

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. …

Magnetic separation of nickel-plating waste liquid using a …

A unique magnetic separation technique using high temperature superconducting bulk magnet has succeeded in collecting Ni-sulfate crystals, which were fabricated from the Ni-plating waste liquid. Pulsed-field magnetizing method was employed to activate the bulk magnet up to 2.80 T, which produced a field space of 1.40 T on the …

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.

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.

Fe3O4@PAM@NTA-Ni2+ Magnetic Composite …

The high magnetic property of Fe3O4@PAM@NTA-Ni2+ allows an easy separation of the NPs from solution under an external magnetic field, with high His-tagged protein binding capacity (42 μg protein ...

Efficient enrichment of nickel and iron in laterite nickel ore …

The process of deep reduction and magnetic separation was proposed to enrich nickel and iron from laterite nickel ores. Results show that nickel–iron concentrates with nickel grade of 6.96%, nickel recovery of 94.06%, iron grade of 34.74%, and iron recovery of 80.44% could be obtained after magnetic separation under the conditions of …

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 …

Magnetic techniques for the isolation and purification of …

In fact, magnetic separation is the only feasible method for recovery of small magnetic particles (diameter ca 0.1 – 1 μm) in the presence of biological debris and other fouling material of similar size. Moreover, the power and efficiency of magnetic separation procedures is especially useful at large-scale operations.

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 …

Upgrade of nickel and iron from low-grade nickel laterite by …

Low-grade saprolite nickel laterite, characterized by complicated minerals composition and fine-grained and complex dissemination, was commonly treated with a low recovery efficiency of Ni and Fe by conventional methods. Hence, an improved direct reduction and magnetic separation process was proposed. Meanwhile, the …

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 ...

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 …

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 …

Green conversion of waste PET into magnetic Ni

The present work reports on the valorization of waste PET towards the preparation of Ni 0·4 Fe 2·6 O 4 /(Fe,Ni)@carbon (NFC) magnetic nanostructure for efficient dye adsorption and separation. We investigate the effects of parameters such as dye concentration, the solution pH, the NFC dosage, and temperature on the adsorption …

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.

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 …

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 …

Carbon thermal reduction of waste ternary cathode

The recovery rate of Li, Ni, Co and Mn were 95.57 %, 96.44 %, 94.88 % and 94.98 %, respectively, under the optimum condition of reaction temperature of 650 °C, wet magnetic separation time of 75 min and solid-liquid ratio of 15 g/L, respectively. ... Other metals are recovered by magnetic separation and adsorption (Sloop et al., 2020; Wang …

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 …

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 …

DRY MAGNETIC SEPARATION OF MAGNETITE ORES

The optimum grade that could be obtained from single-stage dry magnetic separation was 35.52% Mn, and with a Mn:Fe ratio of 1.77, and 44% Mn recovery in the case of sample 1; whereas, a 33.75% Mn grade, with a Mn:Fe ratio of 1.66 at Mn recovery of 44% was reported for Sample 2. It was observed that both samples had a similar input chemistry ...

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.

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.

Pomegranate-like Core–Shell Ni-NSs@MSNSs as a High …

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 the reaction solution by a 4500 G external magnet. Open in a separate window.

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