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How to separate lead and copper with gravimetrical process Location: Home >>News >>Profession news

How to separate lead and copper with gravimetrical process

Inhibition gravity separation method of lead and zinc, lead zinc copper or lead copper mixed concentrate, belong to the field of non-ferrous metal ore dressing technology. In the said mixed concentrate gravity separation add PBS inhibitor. Comprises the following steps: the mixed concentrate first joined the PBS inhibitor, and then into the shaking table; after tabling, concentrate with lead concentrate, the concentrate and tailings contain lead and zinc, lead zinc copper or lead copper concentrate and tailings; again or repeatedly concentrate, tailings obtained by the above tabling, finally lead concentrate and zinc concentrate, zinc and copper concentrate and copper concentrate. Because of the existence of lead sulphide inhibitor, the floatability of the lead sulphide is completely inhibited, the high proportion of characteristic prominent PBS, thus shaking gravity separation, can easily be separated from multi metal in the mixed concentrate of lead sulfide. Concentrate metal elements mutually contain low, the affiliated metal concentrate and the main metal concentrate can meet the requirements of metallurgical standard, and has significant economic benefit.

Gravity separation technology of separate lead and copper:
1, after lead zinc, copper or lead, lead and zinc flotation copper mixed concentrate to join the usually used after flotation of lead sulphide inhibitor, and then into the tabling,
2, through tabling, concentrate with a lead concentrate, concentrate and tailings containing Pb Zn belt belt, lead zinc copper or lead copper concentrate, tailings.
3, once again or repeatedly will concentrate and tailing the income, and the separation of water containing inhibitors into the cradle for re-election, finally lead concentrate and zinc concentrate, zinc and copper concentrate and copper concentrate.
Said the best for shaker table is FRP shaker. Best through flotation separation, obtained lead and zinc, Pb Zn Cu or lead copper mixed concentrate size grading, then obtained fine, medium and coarse grain concentrate with different particle size add lead sulphide inhibitor, or after add lead sulphide inhibitor, lead and zinc, lead zinc copper or lead copper mixed concentrate first size grading, then fine, medium and coarse grain concentrate with different particle size sent into the shaking table respectively for gravity separation.

The flotation process of lead sulphide inhibitor usually used can be: dichromate, sodium thiosulfate, sulfite, sodium sulfide, sodium carboxymethyl cellulose, humic acid etc, but it is best to dichromate.

Because of the existence of lead sulphide inhibitor, the floatability of the lead sulphide is completely inhibited, the high proportion of characteristic prominent PBS, resulting in heavy check, can easily be separated from multi metal in the mixed concentrate of lead sulfide. The invention effectively and thoroughly separation of lead, while effectively rich metal containing poly to promote mutual.

The beneficial effects of the invention: the invention skillfully join selectivity in gravity separation process of Pb flotation inhibitor, let the copper and zinc to maintain the natural attributes, the lead and zinc, lead zinc copper or lead copper mixed concentrate by flotation gravity separation method of the invention, metal elements concentrate containing low income each other, affiliated metal concentrate and the main metal concentrate can both satisfy the metallurgical standards, can greatly improve the economic efficiency, improve quality, reduce the energy consumption of the affiliated metal metallurgical products recycling utilization rate, and is favorable for environmental protection.


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