Flotation is an efficient method for separating minerals. The development of various flotation medicaments and the specific use in production practice, as well as the new development of flotation technology, have greatly improved the efficiency of flotation and expanded the scope of application of flotation; due to the increase in the types of flotation equipment, the equipment continues Newer and increasingly large-scale, the scale of flotation plants is getting larger and larger, and the amount of processed ore is increasing. In addition, the development of flotation production and the application of modern testing techniques in the research of flotation theory have led to an increasing understanding of many theoretical issues.

According to statistics, in the world, the ore processed by flotation accounts for about 60% to 70% of the total selected amount. There are more than 100 kinds of minerals that can be collected. The lower limit of the particle size of the processed raw materials can reach 5 to 10 μm.

1. Advantages of flotation
a. Wide application range and strong adaptability. It can be used in almost all kinds of non-ferrous metals, rare metals and non-metals, and has been widely used in chemical, building materials, environmental protection, agriculture, medicine and other fields.
b. High sorting efficiency, suitable for processing low-grade and finely embedded minerals.
c. Conducive to the comprehensive recovery of mineral resources. It can further process the coarse concentrate, middle ore or tailings obtained by other beneficiation methods, in order to improve the concentrate grade, recovery rate and comprehensive recovery of useful ingredients.

2. Disadvantages of flotation
a. The use of various agents can easily cause environmental pollution.
b. Need finer grinding size.
c. High cost, many influencing factors and high process requirements.