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(1) Priority flotation process. This process is mostly applied in China's lead and zinc mines.
(2) Partial hybrid flotation process. There are also many applications in China.
(3) Full hybrid flotation process.
(4) Pre-selection of heavy medium—Pb-Zn is the preferred flotation process.
(5) Heavy medium pre-selection-flotation-re-election combined process: For ores containing lead, zinc, sulfur and tin , pre-selection by heavy medium beneficiation method, discarding about 35% of waste rock; flotation adopts stage grinding, In the process of stage sorting, lead and zinc concentrates are selected in turn; after the iron ore is selected by flotation of zinc tailings, the tin concentrate is selected by turning the bed.
(6) Waiting for the floatable flotation process, the minerals to be recycled are divided into two parts: easy floating and difficult to float according to the principle of equality of floatability, respectively, mixed flotation, to obtain mixed concentrate, and then separate various useful A separate concentrate of minerals.
(7) Asynchronous hybrid flotation process. In the whole process of lead-zinc mixed flotation, artificially control the pH of the pulp, the inhibition and activation conditions, the strength of the collector, and other factors to ensure that the lead and zinc minerals are not synchronized under their respective suitable flotation conditions. Fully exert its unique floatation, so that high beneficiation indicators can be obtained.
Process flow of flotation lead-zinc mine
Lead zinc ore flotation process are: