Apatite ilmenite two-product beneficiation process

Abstract

The invention belongs to the technical field of mineral processing, and provides a mineral processing technology of two products of apatite and ilmenite. The mineral processing technology of two products of apatite and ilmenite comprises three stages of crushing process, first stage of ball-milling and cyclone closed circuit, mixed pre-floatation, second stage of ball-milling and a second stage ofcyclone closed circuit, low magnetic separation, high magnetic separation, de-magnesia crude floatation, de-magnesia cleaner floatation, titanium-phosphorus separation flotation, titanium mineral processing sub-technology and phosphorus floatation. According to the mineral processing technology of two products of apatite ilmenite, the quality of obtained titanium concentrate is improved by de-iron magnetic separation and de-magnesia floatation, the titanium and phosphorus minerals in the mineral are separated preliminarily by the titanium-phosphorus separation flotation, and then the titaniumand the phosphorus mineral are separately processed, through the technological process, the titanium concentrate with good quality can be obtained from the apatite-ilmenite, meanwhile phosphate concentrate can be recovered, and thus the utilization rate of natural resources and the economic benefit of concentrating mills can be improved.

Description

technical field [0001] The invention belongs to the technical field of ore dressing, in particular to a two-product ore dressing process of apatite and ilmenite. Background technique [0002] Titanium has the advantages of both steel (high strength) and aluminum (light texture). Pure titanium has good plasticity, its toughness is twice that of pure iron, and its heat resistance and corrosion resistance are also very good. Due to these advantages of titanium, it has become a prominent rare metal, titanium and its alloys, first used in the manufacture of aircraft, rockets, missiles, ships, etc., and later widely used in chemical and petroleum sectors. [0003] Ilmenite is the most important titanium-containing mineral and the most important source of titanium metal. Its TiO 2 The theoretical content is 52.66%, and the iron content is generally between 20% and 30%. The chemical composition of ilmenite is related to the conditions of formation. Currently, many mines contain l...

AI Technical Summary

Problems solved by technology

Its P 2 o 5 The content is generally more than 2%, P 2 o 5 It mainly exists in the form of apatite; in addition, this kind of ore is often accompanied by a certain amount of magnetite with ilmenite, and also contains a small amount of false hematite. The specific gravity of these iron minerals and ilmenite is similar, and The affinity to water is also similar, so it is very easy to enter the titanium concentrate with the ilmenite in the re-election and flotation of the ilmenite, resulting in a low grade of titanium concentrate

The gangue of this ore also contains a certain amount of magnesium-containing mica. If the magnesium is not extracted, it will eventually enter the titanium concentrate, which will reduce the quality grade of the titanium concentrate and reduce its price.

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