This study investigated the deep removal of complex nickel from simulated wastewater using magnetic separation and magnetic seed recycling. Nano-magnetite (Fe3O4) was used as the magnetic seed. The flocculant applied was N,N-bis-(dithiocarboxy) ethanediamine (EDTC), a highly efficient heavy metal chelating agent included in dithiocarbamate (DTC).
Nov 01, 2020· The magnetic separation efficiency of nickel from the laterite ore was evaluated using the recovery ratio of nickel R ni using the formula: (1) R Ni = m Ni × β Ni M Ni × γ Ni × 100 % where m Ni is the mass of the magnetic product, g; β Ni is the nickel content in the magnetic product, wt.%; M Ni is the mass of the reduction product, g; and γ Ni is the nickel content in the reduced laterite ore, wt.%.
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Jul 01, 2015· Efficient magnetic separation offseted the poor settleability and filterability of the precipitate. After magnetic separation of iron residue, the nickel solution was qualified and the dried iron residue contained more than 52% Fe and less than 0.6% Ni, indicating a promising alternative process for treatment of bulky residues of iron precipitate.
Nickel is not as well known as other metals, but it plays an important, if invisible Nickel is rust-resistant; Nickel is magnetic, although not as strongly as iron. ore is then heated and treated with various chemicals to separate out the nickel. get price
Three models (including magnet arrangements and Nickel layer) are presented to increase the separation efficiency by optimizing the magnetic field. Polystyrene particles with the diameter of 0.2–7 μm and EMG 408 as the ferrofluid have been used in the proposed model.
Apr 29, 2015· Magnetic separation machines consist of a vibratory feeding mechanism, an upper and lower belt and a magnet. The bulk material is fed through the vibrating mechanism onto the lower belt. At this point, the magnet pulls any material susceptible to magnetic attraction onto the upper belt, effectively separating the unwanted metals from the rest of the bulk. How Magnetic Separation is
Mar 01, 2010· 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.
The magnetic separation is usually performed with a magnetic drum that attracts the ferrous materials to its surface and deposits all the nonferrous metals and the other materials to a different fraction. In the past decades, more intelligent magnetic separators have been developed, both in design and in operation, mostly because of the use of rare earth alloy permanent magnets, which have the ability of
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This study investigated the deep removal of complex nickel from simulated wastewater using magnetic separation and magnetic seed recycling. Nano-magnetite (Fe3O4) was used as the magnetic seed.
Jul 01, 2015· Efficient magnetic separation offseted the poor settleability and filterability of the precipitate. After magnetic separation of iron residue, the nickel solution was qualified and the dried
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In this study, segregation roasting and magnetic separation are used to extract nickel from a garnierite laterite ore. The garnierite laterite ore containing 0.72% Ni, 0.029% Co, 8.65% Fe, 29.66% MgO, and
Three models (including magnet arrangements and Nickel layer) are presented to increase the separation efficiency by optimizing the magnetic field. Polystyrene particles with the diameter of