Preparation method of pyrite activator
An activator, pyrite technology, applied in solid separation, flotation, etc., can solve problems such as difficult activation, equipment corrosion environment, pollution, etc., to achieve strong adaptability, strengthen activation effect, and eliminate calcium ions
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Embodiment 1
[0013] The preparation method of pyrite activator of the present invention, comprises the steps:
[0014] (1) Dissolve copper sulfate in 95°C water and stir properly until the copper sulfate is completely dissolved.
[0015] (2) Add copper sulfate pentahydrate: ammonium sulfate 1:1.6 into the completely dissolved copper sulfate solution by weight, dissolve completely and react for 5-10 minutes.
[0016] (3) After the reaction is complete, lower the temperature and precipitate to about 40°C, pour out the upper liquid, that is, the tail liquid, and dry the precipitated solid to obtain light blue crystals.
[0017] (4) The obtained light blue crystal product and sodium fluorosilicate were subjected to solid phase mixing reaction at a weight ratio of 35:65, and reacted for 30 minutes to obtain a light blue powder product.
Embodiment 2
[0019] This embodiment is an application example of the pyrite activator of the present invention.
[0020] 1. Mineral raw materials:
[0021] Lead-zinc mine in a mine in Guangxi, ore properties: zinc content is 2.17%, lead is 1.5%, and sulfur content is 35%. The main minerals in the ore are galena, sphalerite, pyrite, calcite and quartz. The amount of lime used in lead-zinc flotation is 15kg / t, and the pH of the tailings reaches 12.5. Traditional pyrite activators, such as ammonium bicarbonate, are basically ineffective, and the addition of sulfuric acid is too large, polluting the environment, and its use is restricted.
[0022] 2, medicament system and operating conditions: lead-zinc flotation tailings are concentrated to 45% earlier, slurry is adjusted for 3 minutes, then add pyrite activator 1200g / t of the present invention, act for 5 minutes, then add and collect 300g / t of butyl xanthate, 100g / t of dodecyl mercaptan, act for 3 minutes, add 60g / t of No. 90% recovery in...
Embodiment 3
[0024] This embodiment is another application example of the pyrite activator of the present invention.
[0025] 1. Mineral raw materials:
[0026] A copper-lead-zinc mine in Yunnan, ore properties: copper 0.5%, zinc content 3.21%, sulfur content 21%, lead content 1.05%, silver 30g / t. In the ore, lead mainly exists in galena, zinc mainly exists in sphalerite, sulfur mainly exists in pyrite and a small amount of marcasite and pyrrhotite. The amount of lime used in copper-lead-zinc flotation reaches 15kg / t, the alkalinity of the tailings is too high, and the pyrite is difficult to activate.
[0027] 2, medicament system and operating condition: lead-zinc flotation tailings are concentrated to 45% earlier, slurry is adjusted for 3 minutes, add pyrite activator 1500g / t of the present invention, act for 5 minutes, then add collector Butyl xanthate 400g / t, lauryl mercaptan 120g / t, act for 4 minutes, add foaming agent No. 2 oil 80g / t, first coarse, second fine and second sweep to o...
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