Fluorite beneficiation methods for silica-type fluorite

15311826613

Welcome to consult Xinhai - customized mineral processing plan

Xinhai can provide you with mineral processing tests, mineral processing process and mineral processing equipment selection, mineral processing plant scheme design and construction drawing design; provide mining mineral processing equipment; provide mineral processing plant construction and equipment installation as well as mine management and operation services.

Consultation 153-1182-6613

15311826613

Click to add WeChat

Get product price

WeChat ID has been copied, add friends, and get manufacturer quotations!

Fluorite, also known as fluorspar, is a common non-metallic mineral resource, which is used in metallurgy, chemical industry, construction, optics and other industries. The common impurities in silica (SiO₂) fluorite often affect the application value of fluorite, so it is necessary to remove silicon from fluorite beneficiation. So this article will introduce what are the silica-type fluorite beneficiation methods? Common silica-type fluorite beneficiation methods include flotation, magnetic separation, gravity separation, chemical separation and combined beneficiation.

1. Flotation method for silicon-containing fluorite ore

Fluorite ore flotation method is one of the most widely used methods, especially for fluorite ore with high silica content. Fluorite and silica can be effectively separated by adjusting the pH value and using specific collectors and inhibitors. It is suitable for fluorite ores of various particle size ranges, especially fine-grained minerals, with strong selectivity and suitable for the treatment of complex ores.

2. Magnetic separation of silicon-containing fluorite

For fluorite containing magnetic minerals such as hematite and magnetite, magnetic separation is an effective pretreatment method that can remove most of the magnetic impurities in advance. However, magnetic separation is ineffective for non-magnetic silica and is usually used in combination with other methods. It is suitable for fluorite containing magnetic impurities. As a pretreatment step, it can significantly improve the efficiency of subsequent processes.

3. Gravity separation of silicon-containing fluorite ore

Separation is based on the density difference between fluorite and impurities, which is suitable for coarse-grained fluorite ore. Gravity separation equipment is simple and low in cost, but the separation effect of fine-grained materials is not good. Gravity separation equipment is simple and low in operating cost, which is suitable for the preliminary separation of coarse-grained fluorite ore.

4. Chemical separation of silicon-containing fluorite ore

Chemical separation dissolves or converts impurities through chemical reagents to achieve the purpose of purification. For example, using sulfuric acid or hydrofluoric acid to treat fluorite can dissolve part of the silicon dioxide, but this method is costly and has environmental pollution problems. Although the cost is high, it can achieve a higher purity standard when treating fluorite with high grade requirements, which is suitable for industrial fields with special needs.

5. Combined beneficiation of silicon-containing fluorite ore

In actual production, a single beneficiation method is difficult to meet the requirements of high-quality fluorite, so multiple methods are often used for combined treatment, such as flotation-magnetic separation-gravity separation combined process, to obtain a reasonable beneficiation effect.

The beneficiation of silica-type fluorite is a complex process, which requires comprehensive consideration of factors such as ore properties, beneficiation costs, and environmental protection. Therefore, it is necessary to analyze the ore dressing test, design a reasonable process flow and suitable beneficiation equipment, in order to effectively improve the fluorite grade and meet the needs of different industries.