Segregation-flotation is a combination of pyrochemical treatment and flotation. E.g. refractory segregation of copper oxide ores - flotation ore is crushed to a particle size after mixing to a small amount of common salt (0.1% to 1.0%) and coal dust (0.5 to 2.0%), the oxygen barrier heated to about 900 ℃, ore to metallic copper will be deposited on the surface state of the carbon particles, calcine the flotation after cooling the grinding an oxygen barrier, i.e., to obtain copper concentrate.
The biggest advantage of the segregation-flotation method is that it can solve the ore that cannot be treated by conventional beneficiation methods, and it can comprehensively recover useful metals in the ore. For example, in copper ore, when the ore contains a large amount of cyanite, azurite and bound copper, or contains a large amount of slime, the flotation method of such ore often has a low index, and the segregation rule is More effective. The segregation method can also process mixed ore of copper oxide ore and copper sulfide ore, and can comprehensively recover useful metals such as gold, silver and iron . In addition, the compounds of several metals gold, silver, nickel, aluminum, cobalt, antimony, palladium, bismuth, tin and the like are readily reduced and easily form volatile chlorides, also adapted to the processing method segregation. -
The disadvantage of the segregation method is that the cost is high, the capital construction investment is large, and the production cost is also high. It is estimated that the infrastructure investment of the segregation method is about twice that of the same capacity flotation plant, and the production cost is also 2 to 3 times higher. Therefore, when the oxidized copper ore is difficult to be treated by the separation method, it is considered that the copper grade in the ore should be greater than 2% to obtain a better economic effect. So the separation method is only used to solve ore that cannot be treated by other methods. Therefore, before using this method, a comprehensive study should be conducted on the treated ore. If it can be treated by other methods, it is not appropriate to use the segregation method.Colorful Face Brush
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