3results about How to "Improve flotation environment" patented technology

This invention discloses a method for recovering low-grade tin polymetallic ore tailings resources based on the synergistic effect of combined reagents, comprising the following steps: (1) grinding the tailings and adjusting the slurry concentration and pH value, then adding lead-antimony flotation reagents to the slurry for flotation to obtain lead-antimony concentrate and first flotation tailings slurry; (2) adding zinc flotation reagents to the first flotation tailings slurry for flotation to obtain zinc concentrate and second flotation tailings slurry; (3) performing roughing shaking table operation on the second flotation tailings slurry to obtain roughing tailings slurry and tailings; (4) adding desulfurization flotation reagents to the roughing tailings slurry for flotation to obtain sulfur concentrate and third flotation tailings slurry; (5) performing cleaning shaking table operation on the third flotation tailings slurry to obtain tin concentrate and tailings. This invention's process does not require significant modifications to existing production processes and equipment, not only achieving significant recovery effects for lead and antimony metals but also greatly saving costs.

This invention discloses a flotation process for high-oxidation-rate copper ore, comprising: staged flotation of copper sulfide and copper oxide to obtain copper sulfide and easily floatable copper oxide concentrates; then flotation desliming to obtain low-grade copper-bearing slime; and stepwise flotation of copper oxide after desliming to obtain copper oxide concentrate. This invention adds a sulfiding agent during the grinding process to activate the copper oxide before flotation, improving its floatability. During the copper sulfide flotation process, both copper sulfide and easily activated copper oxide float, resulting in copper sulfide and easily floatable copper oxide concentrates. High-oxidation-rate copper ore contains easily floatable copper sulfide and easily floatable, moderately floatable, and difficult-to-float copper oxides. This invention, during the flotation process, stages activation and separation of easily floatable, moderately floatable, and difficult-to-float copper oxides, avoiding the inhibitory effect of excessive sodium hydrosulfide on some copper minerals and improving the recovery rate of these copper minerals.

The invention discloses a copper sulfide ore collecting agent and a preparation method and application thereof, and belongs to the technical field of ore dressing. The copper sulfide ore collecting agent comprises the following raw materials in percentage by mass: 80%-90% of thionocarbamate compounds, 5%-10% of o-phenanthroline agents and 4%-12% of cosolvents. According to the copper sulfide ore collecting agent, the improved thionocarbamate collecting agent is obtained after traditional thionocarbamate agents, o-phenanthroline agents and the cosolvent are mixed according to the proportion, and the collecting capacity of the traditional thionocarbamate agents can be improved.