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Oxidized zinc ore flotation agent and flotation method

A flotation reagent and oxidation type technology, applied in flotation, solid separation, etc., can solve the problems of low recovery rate of zinc, difficulty in recycling, low grade of zinc concentrate, etc.

Active Publication Date: 2018-03-06
INST OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problems that the flotation method of oxidized zinc ore in the prior art is difficult to recycle, the production cost is relatively high, the recovery rate of zinc is low, and the grade of the obtained zinc concentrate is low. For oxidized zinc ore in different geographical locations, different flotation reagent weight meter combinations and adding sequences are used to achieve the purpose of effectively enriching zinc ore, improving the utilization rate of zinc ore and the recovery of zinc rate and zinc concentrate grade

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  • Oxidized zinc ore flotation agent and flotation method

Examples

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Embodiment 1

[0047] Select 1000g of an oxidized zinc-lead ore in Liaoning, first grind the zinc-lead ore to a particle size of -0.074mm (ie below 200 mesh) and account for 90% of the original ore content; then adjust the slurry concentration of the ground zinc-lead ore to 30.3%, and then add regulators in sequence: sodium carbonate 60g / t, sodium silicate 200g / t, sulfate (Na 2 SO 4 、CuSO 4 etc.) 350g / t, after stirring for 3 minutes, add collectors sequentially: xanthate 130g / t, black medicine 700g / t, foaming agent: No. 2 oil 120g / t; figure 1 The first roughing, second beneficiation, and second sweeping steps described in the above-mentioned flotation method shown in , and the middle ore in the process is returned to the roughing for recirculation, that is, roughing, beneficiation and sweeping, and again To obtain zinc concentrate, gradually increase the grade of zinc concentrate and the recovery rate of zinc, the grade of zinc concentrate can be obtained to be 58.76%, and the recovery rat...

Embodiment 2

[0049] Select 1000g of an oxidized zinc-lead ore in Jilin, first grind the zinc-lead ore to a particle size of -0.074mm (that is, below 200 mesh) and account for 90% of the raw ore content; then adjust the slurry concentration of the ground zinc-lead ore to 29%, and then add the adjuster in turn: sulfate (Na 2 SO 4 、CuSO 4 etc.) 180g / t, sodium silicate 200g / t, sodium carbonate 50g / t, after stirring for 4 minutes, add collectors in sequence: xanthate 160g / t, black medicine 60g / t, foaming agent: No. 2 oil 130g / t t; figure 1 The first roughing, second beneficiation, and second sweeping steps described in the above-mentioned flotation method shown in , and the middle ore in the process is returned to the roughing for recirculation, that is, roughing, beneficiation and sweeping, and again To obtain zinc concentrate, gradually increase the grade of zinc concentrate and the recovery rate of zinc, the grade of zinc concentrate can be obtained to be 52.68%, and the recovery rate of ...

Embodiment 3

[0051] Select 1000g of an oxidized zinc-lead ore in Liaoning, first grind the zinc-lead ore to a particle size of -0.0074mm (that is, below 200 mesh) and account for 92% of the original ore content; then adjust the slurry concentration of the ground zinc-lead ore to 30%, and then add regulators in sequence: sodium carbonate 100g / t, sodium silicate 360g / t, sulfate (Na 2 SO 4 、CuSO 4 etc.) 400g / t, after stirring for 4.5 minutes, sequentially add collectors: xanthate 200g / t, black medicine 160g / t, foaming agent: No. 2 oil 125g / t; figure 1 The first roughing, second beneficiation, and second sweeping steps described in the above-mentioned flotation method shown in , and the middle ore in the process is returned to the roughing for recirculation, that is, roughing, beneficiation and sweeping, and again To obtain zinc concentrate, gradually increase the grade of zinc concentrate and the recovery rate of zinc, the grade of zinc concentrate can be obtained to be 55.6%, and the recov...

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Abstract

The invention relates to an oxidized zinc ore flotation reagent. The oxidized zinc ore flotation reagent comprises the following ingredients by weight: a regulator consisting of a 180-800 g / t sulfate, 200-500 g / t sodium silicate and 50-200 g / t sodium carbonate, a collector consisting of 130-800 g / t xanthate and a 60-800 g / t black catching agent, and a foaming agent consisting of 100-180 g / t 2# oil. The flotation reagent can achieve the purpose of effective zinc ore enrichment, and different combinations by weight and different ingredient adding sequences of the flotation reagent can be adopted for oxidized zinc ores at different geographical positions, so that the zinc ore utilization ratio, the zinc recovery rate and the zinc finished ore grade are all improved, the zinc recovery rate can be up to 87-90%, and the obtained zinc finished ore grade can be 52-60%. The invention also relates to an oxidized zinc ore flotation method.

Description

technical field [0001] The invention relates to the field of zinc ore flotation beneficiation technology and application, in particular to a flotation agent and a flotation method for oxidized zinc ore. Background technique [0002] Zinc is one of the important non-ferrous metal minerals. It is widely used in zinc wire, zinc plate, zinc powder, electroplating, fax plate, insecticide and alloy. The application of zinc is irreplaceable at this stage. Zinc ore is a mineral resource formed by geological processes and is non-renewable. Zinc deposits formed by geological processes can generally be divided into sulfide type (i.e. primary type) and oxidation type (i.e. weathered type). A flotation ore, but by adding a certain concentration of potassium permanganate to the slurry, it can also show good floatability, and a high recovery rate can be achieved through the flotation process, so the sulfide zinc ore has always been It is the main mineral in the zinc ore industry, and it ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/018
Inventor 丛源董庆吉
Owner INST OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI
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