Problem:

• The separation of copper and lead is difficult, and the conventional separation depressants are not effective;
• High organic carbon content;
• Conventional lead inhibitors are toxic;
• It is difficult to separate copper and lead with conventional collector.

Technical solution:

• Use highly effective non-toxic lead depressant DC-30 to effectively depress lead and realize the separation of copper and lead.;

• The high efficiency copper collector YX09510C is used, which has good selectivity and very weak ability to lead and sulfur;

• Carbon depressant D486 is used to avoid the adverse effect of carbon on the separation of copper and lead;

• Flotation process innovation, decarbonization, middle ore reseparation-separation   
•       

 Final effect:

• Efficient separation of copper and lead is realized;
• The grade of copper concentrate is above 20%, and the recovery rate is above 80%;

• The lead loss rate in copper concentrate is only 0.5%