Mineral dressing is a technical process of separating, enriching and purifying useful minerals in ore by physical or chemical methods. Mineral dressing aims to select mineral concentrates rich in target minerals from a large number of ores for further processing into Various metal products or non-metal products.Defoamer for flotation is an auxiliary agent to increase the grade of mineral flotation concentrate and reduce the stability of foam.
Why is it easy to generate a lot of foam in the flotation stage?
The reason for a large number of foams in the flotation method is that the added dispersant and air bubbles interact with water during the stirring process to form a large number of air bubbles. These bubbles cover the surface of the mineral particles, so that the particles have a certain floating ability, and are brought to the liquid surface of the flotation tank along with the stirring to form a foam layer. External air enters through the liquid level of the flotation cell to maintain and increase the froth layer.
In addition, the existence of factors such as high temperature, high-concentration salt solution, and organic agents will also affect the generation of foam. These factors affect the surface tension of the water, causing the air bubbles to attract each other to increase the stability of the water, or to make the non-foaming slurry become capable of foaming.
Defoamer for flotation is a chemical agent that is different from general oxidizing agents or reducing agents. It eliminates foam by changing the surface tension of water, thereby improving the beneficiation effect and increasing the recovery rate of metal minerals.
It is suitable for the flotation of metal minerals, such as copper ore, lead-zinc ore, tin ore, etc., and the extraction of rare earth elements. Rare earth elements will produce a lot of foam during the extraction process. Using this defoamer can effectively solve this problem. In the process, a certain amount of gas will be generated, and the use of this defoamer can reduce the interference of foam on the liquid level gauge and optimize the oil-gas separation process.
