Flotation technology for efficiently recycling complex copper oxide ore

A copper oxide ore, flotation technology, applied in flotation, solid separation, etc., to achieve good flotation index, prevent activity failure, and high-grade effects

Active Publication Date: 2017-12-19
厦门紫金矿冶技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, many achievements have not been put into industrial production due to technical or ec

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  • Flotation technology for efficiently recycling complex copper oxide ore
  • Flotation technology for efficiently recycling complex copper oxide ore
  • Flotation technology for efficiently recycling complex copper oxide ore

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Embodiment 1

[0025] Example 1

[0026] Please check figure 1 In this embodiment, the main valuable element of the raw ore is copper, with a mass fraction of 5.90%, the mass fraction of iron is 1.03%, and the mass fraction of sulfur is 0.053%.

[0027] A kind of flotation process of efficiently reclaiming complex copper oxide ore of the present embodiment comprises the following steps:

[0028] A. Concentrate-flotation process: Grind the raw ore until the grinding fineness is -0.074mm, and the mass fraction is 60-70%, and then add sodium fluorosilicate after making it into slurry, the dosage is 350g / t; the activator uses vulcanization Sodium, the dosage is 2500g / t, to activate copper oxide ore; the collector uses compound collector amyl xanthate 160g / t and butylamine black medicine 40g / t, foaming agent uses 2 # Oil 40g / t, carry out rapid flotation for 2 minutes to obtain concentrate one and roughing slag;

[0029] B. Concentrate 2 flotation process: Sweeping 1 and selecting 1 of the abov...

Embodiment 2

[0041] The difference between embodiment 2 and embodiment 1 is: the main valuable element of the raw ore used in this embodiment is copper, the mass fraction is 5.95%, the mass fraction of iron element is 1.15%, and the mass fraction of sulfur element is 0.061%.

[0042] Please refer to the following table 1, the results of embodiment 1 and embodiment 2 shown in the table show that, adopting the flotation process of the present invention to efficiently reclaim copper oxide ore, the raw ore copper grade in embodiment 1 is 5.90%, and the yield is 12.15%, a high-grade copper concentrate with a copper grade of 26.23% and a copper recovery of 53.94% (i.e. concentrate one); a yield of 3.89%, a copper grade of 22.18%, and a copper recovery of 14.62% for a medium-grade copper Concentrate (i.e. Concentrate II); yield rate is 2.50%, copper grade is 19.09%, copper recovery rate is 8.11% low-grade copper concentrate (i.e. Concentrate III); mixed copper concentrate yield is 18.54%, grade I...

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Abstract

The invention discloses a flotation technology for efficiently recycling complex copper oxide ore. The principles of stage agent addition, rapid flotation and early and fast recycling are adopted for all selection and scavenging in the technological process. The flotation technology comprises the steps that ore grinding is carried out at first, ore slime is dispersed through sodium fluosilicate after ore is ground to have the qualified granularity, gangue is restrained, sodium sulphide is used as an activating agent for activating copper oxide ore, amyl xanthate and butylamine aerofloat are used as a composite collecting agent, 2# oil is used as a foaming agent, rapid flotation is carried out, and first high-grade copper concentrate is obtained; and first-time scavenging is carried out to obtain high-grade middlings, first-time selection is carried out to obtain second concentrate, second-time scavenging, third-time scavenging and fourth-time scavenging are carried out to obtain low-grade middlings and second selection concentrate, the obtained middlings are combined with third concentrate obtained through second-time selection, and concentrate in high grade, intermediate grade and low grade is produced. The flotation technology is applicable to raw ore with the copper element mass fraction being 5-6%, and mixed copper concentrate with the grade being 23-25% and the recycling rate being 77% can be obtained.

Description

technical field [0001] The invention relates to a flotation process for efficiently recovering complex copper oxide ore. Background technique [0002] Copper plays an important role in national economic construction, social development and people's life. The main source of copper is copper sulfide ore, but with the large consumption of copper due to economic and social development, the reserves of copper sulfide ore that are easier to handle in industry are decreasing sharply, and copper oxide ore has gradually become an important object of development and utilization. In my country's copper resources, copper oxide ore accounts for about 1 / 4. There are oxidation zones on the upper part of most copper deposits, and some have even formed independent large and medium-sized copper oxide deposits. Therefore, the development and treatment of copper oxide ore is of great significance to the development of copper beneficiation and smelting industry. [0003] The treatment of copp...

Claims

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Application Information

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IPC IPC(8): B03D1/018B03D101/02B03D101/04B03D101/00B03D103/02
CPCB03D1/018B03D2201/00B03D2201/02B03D2201/04B03D2203/02
Inventor 孙忠梅龙翼徐其红石仑雷张卿温建王伟陈水波孙春校黄雄
Owner 厦门紫金矿冶技术有限公司
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