With the rapid development of China's economy, the demand for rare metals is also increasing. Among them, zirconium ore, as an important rare metal mineral, plays an important role in modern industry. And the coastal sand zirconium ore is an important source of zirconium ore, which has attracted much attention due to its advantages such as high yield, high zirconium content, and good quality. However, there are many impurities in the beach sand zirconium ore, and the extraction of zirconium ore is also difficult. Therefore, this article will introduce a gravity separation method suitable for beach sand zirconium ore to improve the extraction rate and quality of zirconium ore.
1、 Characteristics of Seashore Sand Zirconium Mine
Haibin sand zirconium ore is a zirconium mineral with a high content of zirconium, usually with a zirconium content of over 40%. Its main minerals are zircon, garnet, etc., and also contain a certain amount of phosphorus, titanium, iron and other impurities. These impurity elements will affect the quality and extraction rate of zirconium ore, so gravity separation treatment is required.
2、 Reselection method
Gravity separation is a method of separating useful minerals and impurity minerals in ores through physical methods. For the coastal sand zirconium ore, its gravity separation methods mainly include heavy medium separation, heavy liquid separation, and electric separation.
1. Re selection
Dense medium separation is a method of separating minerals by density difference. For coastal zirconium ore, separation is mainly achieved through differences in settling speed. The specific operation steps are as follows:
(1) Crush the ore to a certain particle size, usually around 0.5-5 millimeters.
(2) Mix ore with heavy medium, with a density of generally 2.5-3.5g/cm for heavy medium ³， Commonly used are Baryte, grindstone, etc.
(3) Place the mixture into a dense medium separator for separation, which includes cyclones, spiral separators, etc.
By using heavy media separation, useful minerals such as zircon can be separated from impurities such as garnet, thereby improving the quality and extraction rate of zircon.
2. Heavy liquid separation
Heavy liquid separation is a method of separating minerals by density difference. Its principle is similar to that of heavy medium separation, but heavy liquid separation uses liquid medium. For coastal zirconium ore, separation is mainly achieved through differences in settling speed. The specific operation steps are as follows:
(1) Crush the ore to a certain particle size, usually around 0.5-5 millimeters.
(2) Mix ore with heavy liquid, with a density of generally 2.5-3.5g/cm for heavy liquid ³， Commonly used are heavy Bromate, heavy Tungstate, etc.
(3) Place the mixture into a heavy liquid separator for separation, which includes centrifuges, cyclones, etc.
By using heavy liquid separation, useful minerals such as zircon can be separated from impurities such as garnet, thereby improving the quality and extraction rate of zircon.
3. Electric selection
Electrical separation is a method of separating minerals through differences in electrical properties. For coastal zirconium ore, separation is mainly achieved through electrical differences. The specific operation steps are as follows:
(1) Crush the ore to a certain particle size, usually around 0.5-5 millimeters.
(2) Mix the ore with the electrolyte, and the composition and concentration of the electrolyte vary depending on the ore.
(3) Place the mixture into an electric separator for separation, which includes high-voltage electric separators, air flotation electric separators, etc.
Through electrical separation, useful minerals such as zircon can be separated from impurities such as garnet, thereby improving the quality and extraction rate of zircon.
3、 Summary
The gravity separation method of seaside sand zircon ore is an important means to improve the quality and extraction rate of zircon. By using methods such as heavy medium separation, heavy liquid separation, and electrical separation, useful minerals such as zircon can be separated from impurities such as garnet, thereby improving the quality and extraction rate of zircon. In actual production, suitable gravity separation methods should be selected based on the different characteristics of the ore to achieve the best separation effect.
