Ilmenite is the main source of titanium resources. Applied in multiple fields such as aerospace, chemical, and biology. How to efficiently and environmentally develop ilmenite? This is an important topic in the mining industry. This article delves into this topic in depth.
1. Gravity beneficiation method for separating ilmenite
The reselection method is applicable to ilmenite with coarse and fine particle sizes for collective impregnation. The re selection equipment used includes spiral chutes and shakers. The working principle is to discard a large amount of gangue and desliming, and increase the enrichment ratio of ilmenite. The new type of re selection equipment has a rotating spiral chute. It combines multiple advantages of traditional equipment and can handle finer grained ilmenite.
2. Magnetic separation method for separating ilmenite
The principle of magnetic separation is to utilize the weak magnetic characteristics of ilmenite. Separate ilmenite and gangue minerals through a strong magnetic separator. This method is applicable to the selection and tail throwing stages. Especially suitable for processing ilmenite that is difficult to enrich by gravity beneficiation methods.
3. Flotation method for separation of ilmenite
The flotation method has the characteristics of high sorting accuracy and good sorting effect. Widely used in the selection of primary titanium ore or fine-grained ilmenite. The commonly used flotation methods include: ① conventional flotation; ② Flocculation flotation; ③ Agglomeration flotation; ④ Carrier flotation. The flotation principle is to achieve effective separation of ilmenite and gangue through different collectors and adjusters.
4. Selection of ilmenite by electric separation method
The crude concentrate produced by gravity and magnetic separation methods will contain non-conductive impurities. At this point, the electrical selection method will be used. This method requires the particle size of ilmenite. Usually used in the selection process, it can effectively remove impurities such as difficult to separate titanium pyroxene.
5. Combined Process
The combined process combines the advantages of various mineral processing methods. Including: ① Magnetic separation flotation; ② Gravity beneficiation flotation; ③ Magnetic separation gravity beneficiation, etc. They can improve the recovery rate and concentrate grade of ilmenite.
Each beneficiation process has its unique advantages and limitations.For example:
1.The gravity beneficiation method has simple operation and low cost, but its separation effect on fine-grained ilmenite is not good;
2.Magnetic separation can effectively separate gangue with small density differences, but it is difficult to separate finer grained ilmenite;
3.The flotation method is highly targeted and efficient, but may be influenced by gangue minerals such as titanium pyroxene;
4.The electric selection method has good selection performance, but its processing capacity is limited.
The beneficiation technology of ilmenite is the key to improving resource utilization efficiency. Continuously optimizing and innovating beneficiation processes, combined with the development of new reagents and equipment, can effectively improve the recovery rate and concentrate grade of ilmenite.
