Beneficiation method for producing high-quality iron ore concentrate by low-grade magnetic iron ore
A magnetite ore and ore dressing method technology, applied in the direction of chemical instruments and methods, flotation, magnetic separation, etc., can solve the problems of large consumption, increased operating costs, and difficult operation, and achieve the goal of reducing ore grinding and saving energy consumption Effect
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[0039] In order to further describe the present invention, the method for beneficiating low-grade magnetite ore to produce high-quality iron concentrate of the present invention will be described in more detail below with reference to the accompanying drawings.
[0040] Take a certain domestic magnetite beneficiation as an example. Its mineral composition is relatively simple. The main metal mineral is magnetite with a content of 25-35%, followed by false hematite, a small amount of limonite, trace pyrite, and chalcopyrite. mine. Gangue minerals are mainly quartz with a content of 40-50%, followed by tremolite, actinolite, ordinary hornblende, and a small amount of amphibole, chlorite, mica, plagioclase and calcite.
[0041] The iron silicate-containing minerals in the ore include actinolite, tremolite and a small amount of ordinary hornblende. Iron amphibole is high in iron silicate minerals, which are mostly distributed in interbeds, iron amphiboles in surrounding rocks, off-sur...
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