High gradient magnetic separation mineral test
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High gradient magnetic separation mineral test
published date: 2019/4/26

water cooling electromagnetic separator

PTMS MAGNETIC SEPARATOR

what is magnetic separation in chemistry?

The high gradient iron remover is a simple, inexpensive and fast iron remover that concentrates iron minerals close to the level of a single mineral, especially those that are not detected in soil clay. The use of variable magnetic flux density further allows subrefining of iron-containing minerals. In addition to the iron content, high gradient separator efficiency is highly dependent on particle size. The stability of the suspension, the appropriate flow rate, the contact time and the packaging of the steel wool are important factors. The experimental setup used in this study was effective for 2-0.2 [mu]m clay, but modifications were needed to adapt the technique to finer (<0.2 [mu]m) particle sizes. This led to the separation of three different minerals: (a) montmorillonite, kaolinite, quartz and feldspar, which is fully correlated with the 1.38 Tesla (T) fraction, indicating the presence of montmorillonite and high in these soils. The feldspar contains little or no iron; (b) vermiculite, mixed layer minerals and mica present in all high gradient magnetic separation components; and (c) amphibole and hydroxyl intermetallic minerals concentrated only in <1.38 T . The content of inter-hydroxyl minerals and amphibole increased as the level of magnetic flux density decreased and concentrated in the <0.20T portion, thereby further separating them into single separated isolates. A very small proportion of interlayer minerals present in the total clay have a non-ferrous (probably Al-Mg interlayer) counterpart. Iron-bearing vermiculite, mixed layer minerals (weathering products of biotite) and mica exhibit different iron contents.

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