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Reduction of iron and calcium content in potassium feldspar PTMS Electromagnetic Separator purification process
published date: 2024/4/6

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The content of iron, calcium and other elements in potassium sodium feldspar determines the quality of ceramic products, iron content is too high, burned products will appear black spots, calcium (mainly carbonate) content is too high, burned products will appear uneven stomata, so reduce the content of iron and calcium in the feldspar PTMS Electromagnetic Separator purification process.

PTMS magnetic separation


The existence of iron forms mainly has two situations: one is exists in hemmonite and other free minerals, the second is occurrence in mica minerals, and calcium mainly occurs in calcite, brimonite can be removed by high gradient magnetic separation, mica minerals can be removed by high gradient PTMS Electromagnetic Separator and flotation, calcite mainly through flotation removal.

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Potassium sodium feldspar generally exists with mica, quartz, calcite and iron-containing minerals. Generally, iron in feldspar minerals mainly occurs in micite, brimonite, pyrite and iron-containing metal silicate minerals (such as garnet, carbide and hiblite). PTMS Electromagnetic Separator Is one of the effective methods to remove harmful impurities in feldspar.
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