Beneficiation method of low-grade lead-antimony-zinc sulfide ore
The invention discloses a beneficiation method of low-grade lead-antimony-zinc sulfide ore, which comprises the following steps of two roughing, two concentration, two scavenging and magnetic separation, and the specific flow is ore grinding, lead-antimony roughing, zinc roughing, lead-antimony conc...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention discloses a beneficiation method of low-grade lead-antimony-zinc sulfide ore, which comprises the following steps of two roughing, two concentration, two scavenging and magnetic separation, and the specific flow is ore grinding, lead-antimony roughing, zinc roughing, lead-antimony concentration, magnetic separation, zinc concentration, lead-antimony scavenging and zinc scavenging; according to the method, lead-antimony and zinc recovery is conducted on the low-grade lead-antimony-zinc sulfide ore through two-time roughing, two-time concentration, two-time scavenging and one-time magnetic separation, flotation is conducted firstly during lead-antimony recovery, then magnetic separation is conducted on the lead-antimony concentrate obtained after flotation, the recovery rate of the lead-antimony concentrate is increased, and the overall recovery rate of the lead-antimony concentrate is 80% or above; the zinc flotation operation and the lead-antimony flotation operation are alternately carried out, |
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