Micro-fine particle hematite greater circulation mine returning negative ion reverse flotation technology
A reverse flotation and hematite technology, applied in flotation, solid separation, etc., can solve the problems of high investment, long flotation time, and many flotation machines, and achieve the effect of increasing economic benefits and optimizing indicators
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[0017] The specific implementation manner of the present invention will be further described below in conjunction with the accompanying drawings.
[0018] Such as figure 1 Shown, a kind of fine-grained hematite of the present invention large circulation returns ore anion reverse flotation process, comprises concentration system and flotation system, is characterized in that the Fe-containing grade 40-41%% after magnetic separation, particle size is P80=20-30 micron magnetic separation concentrate is fed into the concentrator for concentration. After concentration, the underflow of the concentrator with a concentration of 30% is fed into the reverse flotation operation system, and the overflow of the concentrator is fed into the circulating water. The specific reverse flotation The selection steps are as follows:
[0019] 1) The magnetic separation concentrate containing 40-41% Fe and 30% concentration is fed into the flotation roughing operation, and the silicate collector "R...
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