Mineral processing process for multi-metal sulfide minerals containing secondary copper
A multi-metal and sulfide ore technology, applied in flotation, solid separation, etc., can solve the problems of serious product intercontainment, small difference in mineral floatability, etc., and achieve the effects of low price, simplified flotation separation conditions, and wide sources
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Embodiment 1
[0033] The beneficiation process of polymetallic sulfide ore containing secondary copper described in this embodiment uses a certain copper sulfide lead-zinc mine in Baiyin as an ore sample. is 5.04%, Fe grade is 12.91%.
[0034] (1) According to the ratio of adding 3g of iron powder with a particle size of 44μm per 100g of water, add the iron powder into the water, stir and mix well, and heat to boil to obtain a suspension;
[0035] (2) Add iron powder suspension in the mill according to the ratio of 0.4% of the ore solid mass in the pulp, and coarsely grind in the mill for 5 minutes;
[0036] (3) Separation adopts the principle process of stage grinding, stage separation, copper-lead mixed flotation, and then zinc separation, copper-lead mixed concentrate separation. The reagent system for copper-lead mixed flotation roughing is that the regulator is lime 4000g / t, ZnSO 4 800g / t, NaCN 20g / t, the collector is 20g / t ethiazide and 50g / t butyl xanthate, the foaming agent is ...
Embodiment 2
[0039] The beneficiation process of polymetallic sulfide ore containing secondary copper described in this example takes a copper sulfide lead-zinc mine in Yunnan as an ore sample, the raw ore Cu grade is 0.64%, the secondary copper content is 18.36%, the Pb grade is 5.11%, and the Zn grade It is 7.28%, and the ore contains 53.4g / t silver.
[0040] (1) Add iron powder into water at the ratio of 6g iron powder with a particle size of 100μm per 100g of water, stir and mix well and heat to boiling to obtain a suspension;
[0041] (2) Add iron powder suspension in the stirring tank according to the ratio of 0.7% of the ore solid mass in the pulp, and stir in the stirring tank for 10 minutes to make it fully react;
[0042] (3) Flotation adopts the technological process of copper-lead mixed separation, and then separation of zinc and copper-lead mixed concentrate. The reagent system in the roughing stage of copper-lead mixed flotation is 2000g / t lime as regulator, ZnSO 4 800g / t,...
Embodiment 3
[0045] The beneficiation process of the polymetallic sulfide ore containing secondary copper described in this example takes a copper sulfide lead-zinc mine in Guizhou as an ore sample, the raw ore Cu grade is 1.36%, the secondary copper content is 21.58%, the Pb grade is 6.39%, and the Zn grade is 6.39%. It is 7.86%, and the raw ore contains 42.8g / t of silver.
[0046] (1) According to the ratio of adding 10g of iron powder with a particle size of 150μm per 100g of water, add iron powder into water, stir and mix well, and heat to boil to obtain a suspension;
[0047] (2) Add iron powder suspension in the stirring tank according to the proportion of 1% of the ore solid mass in the pulp, and stir in the stirring tank for 15 minutes to make it fully react;
[0048] (3) Separation adopts the principle process of stage grinding, stage separation, copper-lead mixed flotation, and then zinc separation, copper-lead mixed concentrate separation. The agent system of copper-lead mixed ...
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