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Method for activating and adjusting mineralized bubbles in vulcanizing flotation process of copper oxide ores

A technology of mineralized foam and flotation process, applied in the direction of flotation, solid separation, etc., can solve the problem of no activator and mineralized foam adjuster used together, avoid copper metal loss, reduce volume and water content, The effect of easy production operation

Inactive Publication Date: 2012-03-07
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the existing technology for processing copper oxide ore, the sulfuration flotation method and the sulfuration activation flotation method have not yet been combined and applied to the front and rear sections of the same flotation circuit; nor have the activator and the mineralization foam regulator been coordinated. example of use

Method used

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  • Method for activating and adjusting mineralized bubbles in vulcanizing flotation process of copper oxide ores
  • Method for activating and adjusting mineralized bubbles in vulcanizing flotation process of copper oxide ores
  • Method for activating and adjusting mineralized bubbles in vulcanizing flotation process of copper oxide ores

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The properties of the original copper oxide ore sample are (mass percentage): Cu: 1.54%, CaO: 27.88%, MgO: 3.79%, Al 2 o 3 : 1.36%, SiO 2 : 29.87%, Fe: 2.96%, copper oxidation rate 88.40%, copper binding rate: 15.47%.

[0030] Including pre-stage flotation, post-stage flotation, and selection, the pre-stage flotation includes a section of roughing, a total of 1 segment; the post-stage flotation includes roughing and sweeping after the previous stage flotation , a total of 5 subsections, and a total of 1 subsection for the selection, specifically through the following steps:

[0031] A. The copper oxide ore is wet-ground until the mass of powder particles with a fineness of less than 74 μm accounts for 75%, and then the slurry is adjusted to a mass concentration of 32%;

[0032] B. Carry out the previous stage flotation of the pulp obtained in step A, add sodium sulfide 1500g / t, add butyl xanthate 80g / t, and add No. 2 oil 20g / t in the subsection of the previous stag...

Embodiment 2

[0039] The properties of copper oxide ore raw ore samples are (mass percentage): copper 1.0%-2.0%, copper oxidation rate 60%-80%, copper binding rate 6%-20%, CaO: 10-30%, MgO : 10~30%, binding rate: 16.21%.

[0040] Including pre-stage flotation, post-stage flotation, and selection, the pre-stage flotation includes one-stage rough selection and two-stage rough selection, a total of 2 subsections; the post-stage flotation includes Rough selection and scanning, a total of 7 sub-sections, a total of 2 sub-sections of the selection, specifically through the following steps:

[0041] A. Wet-grind the copper oxide ore until the mass of powder particles with a fineness of less than 74 μm accounts for 65%, and then adjust the slurry to a slurry with a mass concentration of 28%;

[0042] B. Carry out the previous stage flotation with the pulp obtained in step A, add sodium hydrosulfide and sodium polysulfide 1400g / t in the first subsection of the previous stage flotation, add butyl ...

Embodiment 3

[0051] The properties of copper oxide ore raw ore samples are (mass percentage): copper 0.6%-1.2%, copper oxidation rate 60%-80%, copper binding rate 6%-20%, CaO: 10-20%, MgO : 10~15%, Al 2 o 3 : 5~10%.

[0052] Including pre-stage flotation, post-stage flotation, and selection, the pre-stage flotation includes a section of roughing, a total of 1 segment; the post-stage flotation includes roughing and sweeping after the previous stage flotation , a total of 4 subsections, the selection of a total of 2 subsections, specifically through the following steps:

[0053] A. Wet-grind the copper oxide ore until the powder particles with a fineness of less than 74 μm account for 85% of the mass, and then adjust the slurry to a pulp with a mass concentration of 20%;

[0054] B. Carry out the previous stage flotation with the pulp obtained in step A, add sodium hydrosulfide 800g / t in the subsection of the previous stage flotation, add butyl xanthate 100g / t and No. 2 oil 40g / t;

[0...

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Abstract

The invention provides a method for activating and adjusting mineralized bubbles in the vulcanizing flotation process of copper oxide ores. The method comprises pre-stage flotation, post-stage flotation and selection; after grinding and mixing, a vulcanizing agent, a collecting agent and a foaming agent are added in each sub-stage of the pre-stage flotation; the mineralized bubble adjusting agent I, a vulcanizing agent, an activating agent, a collecting agent and a foaming agent are added in each sub-stage of the post-stage flotation; and the mineralized bubble adjusting agent II, a vulcanizing agent and a collecting agent are added in each sub-stage of the selection so as to obtain copper concentrate and tailings. The method provided by the invention has the advantages that: the mineralized bubble adjusting agent is correspondingly added when the activating agent is added in the post-stage flotation so as to avoid excessively large bubbles caused by adding the activating agent only, and the production operation is convenient; and compared with the conventional vulcanizing flotation method and conventional activating flotation method, by adopting the medicine adding method and flow structure provided by the invention, the method can improve the recovery rate of copper concentrate by 8-14% while ensuring similar grades of the copper concentrate.

Description

[0001] technical field [0002] The invention relates to an activation method in an ore sulfide flotation system, and more specifically relates to a method for activating and adjusting mineralized foam during the sulfide flotation process of copper oxide ore, which belongs to the field of mineral processing. Background technique [0003] In the flotation method of copper oxide ore, the most important method is based on the sulfide xanthate flotation method. If the flotation effect is not good, the reason can be analyzed from the following perspectives. On the one hand, from the perspective of the target minerals, the proportion of combined copper, chrysocolla, conjoined organisms and fine particles is high; on the other hand, from the non-target minerals Look, the content of harmful slime is too much. For the former, the method of adding activators can be used to strengthen the collection. Commonly used activators include ammonium salt, ethylenediamine, dithiol thiodiazole,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/02B03D1/006B03D101/02B03D101/04
Inventor 周庆华纪翠翠童雄
Owner KUNMING UNIV OF SCI & TECH
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