Beneficiation method of micro-fine particle dissemination type lead-zinc sulphide ore containing marmatite and pyrrhotite
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A technology of pyrrhotite and ore dressing method, which is applied in chemical instruments and methods, flotation, wet separation, etc., can solve the problems of poor comprehensive index of ore dressing, low sorting efficiency, and difficult sorting of ore dressing process, and achieves Solve the effect of low sorting efficiency
Active Publication Date: 2017-10-17
WESTERN MINING CO LTD +3
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[0006] The technical problem to be solved by the present invention is that for iron-containing sphalerite and high pyrrhotite fine-grained embedded multiple refractory lead-zinc sulfide ores, the traditional beneficiation process is difficult to sort, the sorting efficiency is low, and the comprehensive index of beneficiation is poor. Provide a high-efficiency, stable, high-separation efficiency, strong adaptability, and good separation index mineral processing method for iron-containing sphalerite and high pyrrhotite fine-grained complex lead-zinc sulfide ores , so that this kind of refractory lead-zinc sulfide ore resources can be efficiently utilized
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Embodiment 1
[0025]Embodiment 1, with 100 gram potassium permanganate, 300 gram sodium humate (molecular weight 10 4 ~10 6 ), 30 grams of hydroxyalkyldithiocarbamate, mixed with a beaker at normal temperature and pressure, and stirred with a magnetic stirrer for 40 to 60 minutes to obtain XKY-12.
Embodiment 2
[0026] Embodiment 2, with 100 gram potassium permanganate, 300 gram sodium humate (molecular weight 10 4 ~10 6 ), 50 grams of hydroxyalkyldithiocarbamate, mixed with a beaker at normal temperature and pressure, and stirred with a magnetic stirrer for 40 to 60 minutes to obtain XKY-12.
Embodiment 3
[0027] Embodiment 3, with 100 gram potassium permanganate, 300 gram sodium humate (molecular weight 10 4 ~10 6 ), 40 grams of hydroxyalkyldithiocarbamate, mixed with a beaker at normal temperature and pressure, and stirred with a magnetic stirrer for 40 to 60 minutes to obtain XKY-12.
[0028] Second, the sorting process
[0029] Embodiment 1. The selected ore is a certain iron-containing sphalerite and high pyrrhotite fine-grained complex lead-zinc sulfide ore in Inner Mongolia. The raw ore contains 1.19% lead, 2.36% zinc, 14.13% sulfur, and Iron 20.23%; the main metal mineral is pyrrhotite, followed by pyrite, sphalerite, galena, limonite, a small amount of hematite, magnetite, chalcopyrite, smithsonite etc.; the main gangue minerals are quartz, calcite, sericite, kaolinite, etc.; the intercalation relationship of the main metal minerals is complex, the intercalation particle size is fine, and it is difficult to dissociate the monomer. The ore was processed by the traditi...
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Abstract
The invention discloses a beneficiation method of micro-fine particle dissemination type lead-zinc sulphide ore containing marmatite and pyrrhotite. For the complicated nature of micro-fine particle dissemination type lead-zinc sulphide ore containing marmatite and pyrrhotite, the zinc-sulphide two-stage bulk flotation-zinc-sulphide mixed rough concentrate regrinding and separation technology is adopted, easy-floating zinc-sulphide minerals are preferentially floated during zinc-sulphide mixed first-stage flotation, difficult-floating marmatite flotation is reinforced in the second stage, two-stage mixed rough concentrate is reground so as to promote sufficient monomer separation of zinc-sulphide intergrowth minerals, activated carbon is added in the regrinding process to enhance mineral surface reagent removal, during separation floatation, XKY-12 is added to form deep restraining of pyrrhotite, and efficient separation of marmatite and pyrrhotite is enhanced; according to the method, the good ore dressing recovery rate is ensured, and qualified and high-quality zinc concentrate is obtained; meanwhile, the efficient pyrrhotite inhibitor XKY-12 is adopted, and the problems that the marmatite and pyrrhotite separation efficiency is low and the separation precision is poor are solved.
Description
technical field [0001] The invention relates to the technical field of flotation of miscellaneous lead-zinc sulfide ores, in particular to a beneficiation method for multiple refractory lead-zinc sulfide ores of iron-containing sphalerite and high pyrrhotite micro-grain embedded distribution type. Background technique [0002] sphalerite (Zn x , Fe 1-x )S is due to the zinc atoms on the sphalerite lattice being replaced by Fe 3+ Substitution makes the valence and charge state unbalanced, thereby changing the mineral lattice hole concentration and electron density, and affecting the mineral floatability, adsorption, redox state and interface electrochemical reaction. In addition, the amount of iron contained in sphalerite not only affects its buoyancy, but also affects its magnetic strength. The higher the iron content, the stronger the magnetism. pyrrhotite (Fe 1-x S, 0<x<0.223) is an iron sulfide that can coexist with a variety of minerals. It has three homogeneou...
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