Direct flotation method of zinc sulfide ore
A zinc sulfide ore and zinc sulfide technology, applied in flotation, solid separation, etc., can solve the problems of difficult activation, increased amount of activator, and intermetallic inclusion of metals, and achieve simple flotation process, less amount of collector, The effect of fast flotation speed
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Embodiment 1
[0020] The ore to be selected is a lead-zinc sulfide ore in Sichuan. The ore contains 1.45wt% lead and 4.11wt% zinc, and more than 90wt% of the zinc content is sphalerite, and the sphalerite contains 1.68wt% iron. Grind the ore to make a slurry with a concentration of 25% by weight, in which -200 mesh ore powder accounts for 85wt% of the total ore powder, add hydrochloric acid solution to adjust the pH of the slurry to 6-7 and stir for 2 minutes, then add collector Sodium dodecyl dithiocarbamate 60g / t acted for 2 minutes, then added pine alcohol oil foaming agent 20g / t acted for 2 minutes, then started flotation for 6 minutes, the recovery rate of lead and zinc was as high as 86%.
Embodiment 2
[0022] The ore to be selected is a polymetallic sulfide ore in Yunnan. The ore contains lead, zinc, iron, sulfur, indium, gallium, germanium, etc., and its mineral content is about 8.5wt% sphalerite. The iron content in sphalerite is 10.5wt%. Grind the ore to make a slurry with a concentration of 40% by weight, in which -200 mesh ore powder accounts for 90wt% of the total ore powder, add calcium hydroxide solution to adjust the pH to 10-11 and stir for 2 minutes, add copper sulfate 50g / t activation for 2 minutes, then add collector sodium dodecyl dithiocarbamate 90g / t, then add pine oil foaming agent 25g / t to act for 2 minutes, then start flotation for 6 minutes, the recovery rate of lead and zinc is as high as More than 80%.
Embodiment 3
[0024] The ore to be processed is a low-grade lead-zinc sulfide mine in Yunnan. The ore contains 1.61wt% zinc, 3.25wt% lead, and 6.32wt% iron, of which zinc and lead sulfides account for more than 90wt%. 33% ore pulp, of which -200 mesh ore powder accounts for 95wt% of the total ore powder, add calcium hydroxide solution to adjust the pH to 9-10 and stir for 2 minutes, then add collector sodium n-butyldithiocarbamate 70g / t , then add pine oil foaming agent 30g / t to act for 2 minutes and then start flotation for 6 minutes, the recovery rate of lead and zinc is as high as 80%.
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