| abstract |
The invention discloses a flotation separation method of sphalerite under high altitude environment. The method includes: adding calcium oxide, an oxygen-enhancing agent, or an oxygen-enhancing auxiliary agent to the pulp before flotation, and stirring for 5-20 minutes to obtain an oxygen-enriched pulp; wherein, the oxygen-enhancing agent is sodium percarbonate, percarbonate One or more of amide and calcium peroxide, and the oxygen-enhancing auxiliary agent is one or more of sodium chloride, ferric chloride and ferric sulfate. The invention can reduce the adverse effect of pyrrhotite on the sphalerite flotation by adding calcium oxide and an oxygen-enhancing agent or an oxygen-enhancing auxiliary during the flotation process of the sphalerite in a high-altitude environment, and improve the plateau environment. Lower the flotation speed of sphalerite, improve the recovery rate of zinc concentrate, and obtain higher quality zinc concentrate. |