What are the advantages and disadvantages of flotation in the mineral processing process? The advantages and disadvantages of flotation in the mineral processing industry are mainly reflected in the following aspects.
(1)Advantages
① The flotation method has strong adaptability. Since flotation uses the differences in physical and chemical properties of mineral surfaces to sort minerals, and this difference can be artificially controlled and adjusted (changed and expanded) through flotation reagents, this is This makes the flotation method highly adaptable.
② Flotation has a high separation efficiency and is suitable for processing fine-grained materials. Since flotation can use chemicals to change and expand the differences in flotation properties of various minerals, it is a relatively efficient separation process. The quality of the concentrate is better, and the recovery rate and enrichment ratio are also relatively high.
The flotation method is conducive to the comprehensive recovery of mineral resources. Because the flotation reagents can artificially change and expand the differences in mineral flotation properties, the flotation method can separate many symbiotically complex polymetallic ores into multiple separate concentrates to supply mineral raw materials for different industrial needs. Therefore, flotation method is of great significance for the comprehensive utilization of mineral resources. (2) Disadvantages The flotation method also has some disadvantages, mainly the high cost of mineral processing and the tendency to pollute the mine environment. The main reasons are as follows. ①The ore entering flotation requires finer grinding. ② Various flotation reagents need to be used. ③ There are many process factors that affect the flotation process, and the operation and control technology requirements are high. ④The dehydration efficiency of the flotation product (foam concentrate) is low and the process is often complicated. ⑤ May cause secondary pollution (the agent exists in ionic form). ⑥For some difficult-to-separate ores, the separation effect of flotation method is not ideal. In view of the above reasons, for some specific minerals, in addition to being used alone as an independent mineral processing method, flotation is often combined with other mineral processing methods in order to obtain the best technical and economic benefits. For example, for coarse-grained tungsten-tin ore with a large difference in specific gravity between minerals and gangue, the gravity separation method should mainly be used, and the flotation method should be used to comprehensively recover other useful minerals associated with the fine mud part.
