There are actually many problems about the flotation process. The most important reason is that the flotation process is a more complex mineral processing process, which involves the most common problems such as: The amount of flotation agent, the amount of inflation, the concentration of ore slurry, etc. , Here are just two issues that need to be paid attention to frequently in the flotation process: 1. The selection of concentrates and the number of sweeps. 2. The treatment of medium ore in the flotation process.

1. How to determine the number of concentrates and sweeps in the flotation process?

After we have determined the flotation principle process of the ore, we should then determine the number of selections and sweeps in the process.The determination of the number of selections and sweeps depends on the grade of the raw ore, the floatability of useful minerals, and the requirements for the quality of the concentrate.

When the grade of raw ore is low, the floatability of useful minerals is good, and the quality requirements of concentrate are high, the selection should be strengthened, that is, the selection time should be extended and the number of selections increased.

When the raw ore has a high grade, the useful minerals have poor floatability, and the quality requirements of the concentrate are not high, the scanning should be strengthened, that is, the scanning time should be extended and the number of scanning should be increased.

2. The treatment of medium-sized mines in the flotation process?

The so-called China Mine refers to the tailings and sweeping foam products of each selected operation that need to be further processed in the flotation process.For how to deal with medium ore, it should be based on the content of conjoined organisms, the floatability of useful minerals and the requirements for the quality of concentrate.

There are 4 most commonly used treatment methods for Chinese mines：

1. Return the mine to the appropriate place at the front of the flotation cycle；

2. Return the medium ore to the grinding and grading cycle; (mainly the medium ore composed of conjoined organisms)

3. Treat the medium ore separately; (mainly the medium ore composed of complex, easily oxidized, and difficult-to-float ore particles)

4. China Mine no longer performs flotation, but uses other methods to deal with it.(Mainly for fear of losing a large amount of metal, the medium ore is treated by pyroelectric or chemical methods, or sold as a low-grade concentrate without treatment)

As the most commonly used and most complex chemical mineral processing process at present, the flotation process often has a variety of reasons when it does not meet the indicators, such as whether the model of the flotation machine matches the ore slurry, whether the flotation agent is used reasonably, whether the inflation is sufficient or excessive, etc., These all need to be paid attention to at all times in daily work, in order to obtain good flotation mineral processing indicators.