Titanomagnetite and ilmenite separation technology

Abstract

The invention belongs to the technical field of mineral separation, and provides a titanomagnetite and ilmenite separation technology. The titanomagnetite and ilmenite separation technology comprisesthe steps of three-stage crushing and large-particle-size dry separation process conducting, high-pressure rolling and fine grain dry separator closed circuit conducting, iron separation sub-process conducting, strong magnetic separation, two-stage table conducting, desulfurization rough flotation, desulfurization sweeping flotation, desulfurization fine flotation and titanium flotation. Through large-particle-size dry separation in the three-stage crushing and large-particle-size dry separation process and a fine grain dry separator in a high-pressure rolling and fine grain dry separator closed circuit, waste stones with the productivity of 68% are thrown away through two-stage dry separation, therefore, the treatment amount of subsequent ore grinding and grading operation is greatly decreased, energy consumption and medium consumption are reduced, and the cost is reduced; and desulfurization treatment is conducted through desulfurization rough flotation, desulfurization sweeping flotation and desulfurization fine flotation. The titanomagnetite and the ilmenite with the low iron and titanium content are treated through the technology, and therefore iron concentrate and titanium concentrate with the high grade can be obtained.

Description

technical field [0001] The invention belongs to the technical field of ore dressing, in particular to a beneficiation process of titanomagnetite and ilmenite. Background technique [0002] Titanium magnetite and ilmenite are important iron ore and titanium ore resources, especially for titanium, which is mainly sourced from this ore. The main useful metals of this type of ore are iron and titanium, and the iron content is generally not high, most of which are between 12% and 20%. 2 The content is generally between 2% and 5%. Since titanium is mainly used as a high-grade alloy raw material in the defense industry and aviation industry, the price of titanium concentrate is relatively high. Therefore, for this kind of ore with low grade iron ore, comprehensive recovery Iron and titanium are even more necessary. [0003] Titanium magnetite is generally associated with ilmenite, and the two minerals are in a continuous state when they are coarse-grained. The occurrence state o...

AI Technical Summary

Problems solved by technology

In order to obtain a higher iron grade and recovery rate for this kind of ore, the titanium grade and recovery rate need to put all the raw ore into the mill, and the efficient recovery of non-magnetic useful minerals generally requires very complicated magnetic separation-gravity separation- The flotation process, for this kind of minerals with low ore grade and fine particle size, often consumes a lot of energy, media, and reagents, and the cost of beneficiation is particularly high, which may even lead to losses for the beneficiation plant

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