Sequential priority flotation separation method of low-sulfur copper-lead-zinc polymetallic ore
A technology of preferential flotation and polymetallic ore, applied in flotation, solid separation, etc., can solve the problems of highly toxic cyanide, difficult suppression of zinc and sulfur, environmental pollution, etc., and achieve high-efficiency separation and remarkable effect
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Embodiment 1
[0016] Separation of copper, lead and zinc by flotation on a low-sulfur type copper-lead-zinc polymetallic sulfide ore. The raw ore grade of the ore is 0.60% copper, 0.62% lead, 3.96% zinc, 2.15% sulfur and 13.2 grams of silver / Ton. After the ore is ground to a fineness of 75%-0.074 mm (the mass ratio of particles with a particle size below 0.074 mm reaches 75%), the combined inhibitor T-9 is added at a concentration of 33% of the slurry at a rate of 900 grams per ton of raw ore, and stirred After 5 minutes, add thiocarbamate as a collector for copper priority flotation roughing operation, and the flotation time is 5 minutes to obtain copper rough concentrate; add combined inhibitor T-9 to the obtained copper rough concentrate slurry It is 200 g / t raw ore, after stirring for 5 minutes, copper concentration is carried out once, and the flotation time is 5 minutes to obtain copper concentrate I concentrate. The copper grade of the copper concentrate is 26.31%, the copper recov...
Embodiment 2
[0022] A low-sulfur copper-lead-zinc polymetallic sulfide ore was subjected to preferential flotation separation of copper, lead, and zinc. The raw ore grade of the ore was 0.59% copper, 4.28% lead, 2.11% zinc, 2.84% sulfur, and 31.98% silver. g / t raw ore. After the ore is ground to a fineness of 72%-0.074mm, add the combined inhibitor T-9 at a concentration of 35% of the ore at a rate of 1200 g / t of raw ore, stir for 5 minutes, and then add thioazepam as a collection Copper priority flotation roughing operation is carried out with the copper agent, and the flotation time is 7 minutes to obtain copper rough concentrate; Add combined inhibitor T-9 in the obtained copper rough concentrate slurry to be 300 g / ton of raw ore, after stirring for 5 minutes, Copper beneficiation is carried out once, and the flotation time is 5 minutes to obtain copper concentrate I concentrate, and the copper concentrate I concentrate is subjected to two beneficiation to produce copper concentrate. T...
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