A kind of method of flotation of high-sulfur lead-zinc ore
A high-sulfur-lead, lead-zinc ore technology, applied in flotation, solid separation and other directions, can solve the problems of difficulty in obtaining high-grade lead-zinc concentrate products, low ore beneficiation recovery rate, and high product mutual content, and achieves good applicability and comprehensiveness. The effect of high recovery rate and excellent separation index
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Embodiment 1
[0039]A concentrator in Zhaotong, Yunnan, contains 6.97% lead, 18.23% zinc, and 14.56% iron. The main metal minerals are sulfide minerals (galena, sphalerite and pyrite), with coarse particle size and buoyancy Very good, using the conventional full-priority flotation method, the recovery rate of lead-zinc metal is low, the mutual content of lead-zinc is high, and the consumption of chemicals is large. In order to effectively recover lead-zinc-sulfur minerals, the above-mentioned ores are processed through the following process steps:
[0040] A. Grinding: Grinding the raw ore to -74 microns accounts for 65%;
[0041] B. Preliminary separation of lead and zinc: The ground pulp is subjected to two-stage roughing and two-stage sweeping for the preliminary separation of lead-sulfur-zinc. Sequentially return to the previous layer of operations, the process conditions of the lead and sulfur roughing 1 are to add 2500 g / ton of zinc sulfate and stir for 3 minutes to fully combine the ...
Embodiment 2
[0047] A concentrator in Huize, Yunnan, contains 6.23% lead, 19.62% zinc, and 16.53% iron. The main metal minerals are sulfide minerals (galena, sphalerite, and pyrite), and the embedded particle size is relatively coarse. The properties are very good, and the above-mentioned ore samples are processed through the following process steps:
[0048] A. Grinding: Grinding the raw ore to -74 microns accounts for 70%;
[0049] B. Preliminary separation of lead and zinc: The ground pulp is subjected to two-stage roughing and two-stage sweeping for the preliminary separation of lead-sulfur-zinc. Sequentially return to the previous layer of operations, the process conditions of the lead and sulfur roughing 1 are to add 3000 g / ton of zinc sulfate and stir for 4 minutes to fully combine the agent and ore; then add 250 g / ton of ethyl disulfide and 20 g of 730A / ton, stirring for 1.5 minutes, so that the agent and the ore are fully combined; the process conditions of lead sulfur roughing...
Embodiment 3
[0055] A concentrator in Inner Mongolia contains 4.51% lead, 8.44% zinc and 19.62% iron. The main metal minerals are sulfide minerals (galena, sphalerite and pyrite). Well, the above-mentioned ore sample is processed through the following process steps:
[0056] A. Grinding: Grinding the raw ore to -74 microns accounts for 68%;
[0057] B. Preliminary separation of lead and zinc: The ground pulp is subjected to two-stage roughing and two-stage sweeping for the preliminary separation of lead-sulfur-zinc. Sequentially return to the previous layer of operations, the process conditions of the lead and sulfur roughing 1 are to add 2000 g / ton of zinc sulfate, 1000 g / ton of sodium sulfite, and stir for 4 minutes to fully combine the agent and ore; then add 100 g of ethion / ton, dixanthate 100 g / t, MIBC 30 g / t, stirring for 1.5 minutes to fully combine the agent and ore; the process conditions for lead and sulfur roughing 2 are to add zinc sulfate 1000 g / t, sodium sulfite 500 g / t T...
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