Combined reagent for zinc-containing ore flotation and using method thereof
A combination of reagents and zinc ore technology, applied in flotation, solid separation, etc., can solve the problems of difficult to find sulfide ore and oxide ore, simultaneous recovery, ore buoyancy difference, etc., to improve flotation effect, reduce consumption, The effect of reducing production costs
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Embodiment 1
[0016] In this example, a low-grade zinc-containing ore in Yunnan with a zinc grade of 3.56% is used as the processing object. The specific method is: grind the zinc-containing ore to a fineness of -0.074mm to account for 50%, and the dosage of each agent is: pH regulator carbonic acid Sodium 200g / t, gangue inhibitor sodium hexametaphosphate 500g / t, collector xanthate 20g / t, after a rough separation, the grade of zinc concentrate is 21.86%, and the recovery rate is 61.38%.
[0017] The combined medicament of the present invention is used as a collector to replace xanthate, and the dosage is 20g / t. The raw materials and their mass percentages in the combined medicament are: hydroxamic acid 5wt%, ethylenediamine 10wt%, xanthate 60wt%, Palmitoyl glycine 25wt%, under the same flotation conditions, the grade of zinc concentrate is 26.65%, the recovery rate is 82.72%, the concentrate grade and recovery rate have been greatly improved.
Embodiment 2
[0019] In this example, a low-grade zinc-containing ore in Guangxi with a raw ore zinc grade of 6.83% is used as the processing object. The specific method is: grind the raw zinc-containing ore to a fineness of -0.074mm and account for 75%, and the dosage of each agent is: pH regulator carbonic acid Sodium 700g / t, gangue inhibitor sodium hexametaphosphate 1000g / t, collector octyl hydroxamic acid 150g / t, after a rough separation, the grade of zinc concentrate is 28.48%, and the recovery rate is 65.38%.
[0020] The combined agent of the present invention is used as a collector to replace octylhydroxamic acid, and the dosage is 150g / t. The raw materials and their mass percentages in the combined agent are: hydroxamic acid 20wt%, ethylenediamine 20wt%, xanthate 20wt%, palmitoylglycine 40wt%; under the same flotation conditions, the grade of zinc concentrate was 34.65%, the recovery rate was 75.27%, and the flotation index was significantly improved.
Embodiment 3
[0022] In this embodiment, a certain zinc-containing ore raw ore zinc grade of 9.56% in Guizhou is used as the processing object. The specific method is: grind the zinc-containing ore raw ore to a fineness of -0.074mm to account for 95%, and the dosage of each agent is: pH regulator sodium carbonate 1500g / t, gangue inhibitor sodium hexametaphosphate 2000g / t, collector palmitoylglycine 300g / t, after a rough separation, the grade of zinc concentrate is 26.42%, and the recovery rate is 72.58%.
[0023] The combined agent of the present invention is used as a collector to replace palmitoylglycine, and the dosage is 300g / t. The raw materials and their mass percentages in the combined agent are: 40wt% hydroxamic acid, 45wt% ethylenediamine, and 10wt% xanthate. %, palmitoyl glycine 5wt%; under the same flotation conditions, the grade of zinc concentrate was 32.84%, the recovery rate was 81.52%, and a better flotation index was obtained.
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