Nature of ilmenite

Ilmenite is one of the main titanium-containing minerals, is the main ore for refining titanium, hardness 5-5.5, brittle, iron black or steel grey in colour, metallic to semi-metallic luster, opaque, sometimes appearing or cracked, relative density of 4.0-5.0, with weak magnetism. And it beneficiation selected titanium performance is better, summed up, is four points: one is light weight, relative to steel, density is small, about 43% lighter than steel; two is corrosion resistance, titanium on most acids, alkalis, salts have corrosion resistance, seawater resistance to corrosion is very strong, can be compared with platinum; three is a good performance at ultra-low temperatures, close to minus 273 ℃, the resistance of almost 0, is excellent superconducting material; four is Lightness is high, the tensile strength of pure titanium metal is 42-77kgf/mm2, titanium alloy is even higher 180kgf/mm2. In short, ilmenite is the most important titanium ore mineral.

Comprehensive use of ilmenite

1. The most extensive use of ilmenite is deep processing into titanium dioxide, which is a widely used white pigment in modern industry;

2. The production of titanium series of high value-added products, the process of titanium oxide sulfate can be used to prepare lithium titanate materials, hydrated titanium dioxide can be used to prepare mesoporous titanium dioxide;

3. Direct use of ilmenite, including the reduction of the preparation of metal ceramics and hard materials, ilmenite alkali metal solid-phase reaction can be obtained wear-resistant ceramic materials, lithium-ion anode and cathode materials and magnetic materials;

4. Comprehensive utilisation of iron-containing waste residue, the generated ferrous sulphate waste residue can be used to prepare flocculants, manganese dioxide and other products;

5. In addition, because the material has micron size, so it has the advantage of easy separation, suitable for subsequent industrial large-scale application, the study found that this mesoporous titanium oxide material in hydrogen production, immobilisation of enzymes, drug carriers and catalyst carriers have shown excellent performance.

Beneficiation process of ilmenite

The main ilmenite beneficiation process has "re-election - strong magnetic separation - flotation" and "re-election - strong magnetic separation - electrowinning (separation before the removal of sulfur)" two kinds of beneficiation process should be in strict accordance with the classification of grains into the selection, to take a different The main equipments of this production line designed by Henan Liming Heavy Industry include vibrating feeder, spiral classifier, spiral chute, magnetic separator (flotation machine), mixing tank, etc. According to the design of its material characteristics, the flow is smooth and the configuration is reasonable, and it is an ideal production line with small investment and short return cycle.

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