Flotation useful components containing two or more multi-metal ore, if the first rest suppress flotation of a mineral mineral, activated and then another mineral flotation, which in turn processes the recovery of useful minerals called priority Flotation process. For example, the principle of flotation of copper zinc ores the process shown in Figure 6-23, which process is based on the quality of mineral flotation, and then sequentially to float float copper zinc. If in the above case, two or more kinds of useful minerals in the ore are first floated together to obtain a mixed concentrate, and then the mixed concentrate is sorted to obtain a qualified concentrate of different useful minerals. The process of mixing and recycling a variety of useful minerals is called a flotation flotation process, also known as a full flotation process. For example, the principle of mixed flotation of copper-zinc ore is shown in Figure 6-24. This process is to first float all the copper and zinc, obtain mixed concentrate and waste tailings, re-grind or remove the mixed concentrate, and then Priority float copper to obtain copper concentrate. In general, mixed flotation is suitable for the treatment of ore with poor ore and simple nature. In this case, the preferred flotation has the following advantages: it can save grinding costs, save flotation reagents, and save flotation equipment .
When recovering more than three useful minerals, a partial blend flotation process can also be applied, as shown in Figure 6-25. It differs from the full flotation process in that a portion of the useful mineral to be floated is first mixed out.
The floatable process is also called the hybrid flotation process, as shown in Figure 6-25. It divides the useful minerals to be floated into two parts: easy to float and difficult to float according to the floatability. Flotation, then separate. It adapts to the same mineral, including complex polymetallic ore, which is easy to float and difficult to float. Its advantages are that it can reduce the consumption of chemicals, eliminate the influence of excess chemicals on the separation flotation, and help to improve the flotation index. The main disadvantage is the use of more equipment than full flotation.
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