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Flotation method of highly argillaceous alkaline gangue copper oxide ore

A technology of copper oxide ore and mud, which is applied in flotation, solid separation, etc., can solve the problems that the recovery rate of copper flotation cannot be greatly improved, and the effect is not significant, so as to achieve good driving force and demonstration, stable indicators, The effect of efficient recycling

Inactive Publication Date: 2012-11-07
KUNMING UNIV OF SCI & TECH
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  • Abstract
  • Description
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Problems solved by technology

Experimental research results show that the above measures have a certain effect, but the effect is not large, and the recovery rate of copper flotation cannot be greatly improved.
[0004] Over the years, some people have studied the flotation of highly argillaceous alkaline gangue copper oxide ore, but have never seen this type of copper oxide ore "no foaming agent - strong activation - mud dispersion - strong collection flotation method" report

Method used

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  • Flotation method of highly argillaceous alkaline gangue copper oxide ore

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Experimental program
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Effect test

Embodiment 1

[0019] Properties of high argillaceous alkaline gangue copper oxide ore: raw ore grade ≥ 0.8%, oxidation rate ≥ 88, mud content ≥ 30%, binding rate ≤ 10%.

[0020] (1) Wet grind 1 ton of high muddy alkaline gangue copper oxide ore until the ore with a grinding fineness of 74 μm accounts for 85%, adjust the mass concentration of the pulp to 38%, add Na 2 S600g, adding 1400g of isoamyl xanthate, adding 800g of a mixture of ammonium sulfate and ethylenediamine phosphate salt with a mass ratio of 10:1, and roughing for 10 minutes after slurry mixing for 4 minutes;

[0021] (2) Adjust the mass concentration of the remaining pulp after roughing to 30%, and add Na 2 S120g, add isoamyl xanthate 100g, add the mixture 150g of ammonium sulfate and ethylenediamine phosphate salt with a mass ratio of 10:1, carry out a sweep for 10 minutes; the foam product of a sweep returns to the roughing operation;

[0022] The foam product obtained by roughing is adjusted to have a mass concentration ...

Embodiment 2

[0027] Properties of high argillaceous alkaline gangue copper oxide ore: raw ore grade ≥ 0.8%, oxidation rate ≥ 88, mud content ≥ 30%, binding rate ≤ 10%.

[0028] (1) Wet grind 1 ton of high muddy alkaline gangue copper oxide ore until the ore with a grinding fineness of 74 μm accounts for 95%, adjust the mass concentration of the pulp to 30%, add Na 2 S700g, adding 1200g of isoamyl xanthate, adding 700g of a mixture of ammonium sulfate and ethylenediamine phosphate salt with a mass ratio of 10:1, and roughing for 10 minutes after slurry mixing for 4 minutes;

[0029] (2) Adjust the mass concentration of the remaining pulp after roughing to 25%, and add Na 2 S150g, add isoamyl xanthate 120g, add the mixture 100g of ammonium sulfate and ethylenediamine phosphate salt with a mass ratio of 10:1, carry out a sweep for 10 minutes; the foam product of a sweep returns to the roughing operation;

[0030] The mass concentration of the foam product obtained by roughing is adjusted to ...

Embodiment 3

[0035] Properties of high argillaceous alkaline gangue copper oxide ore: raw ore grade ≥ 0.8%, oxidation rate ≥ 88, mud content ≥ 30%, binding rate ≤ 10%.

[0036] (1) Wet grind 1 ton of high muddy alkaline gangue copper oxide ore until the ore with a grinding fineness of 74 μm accounts for 90%, adjust the mass concentration of the pulp to 28%, add Na 2 S800g, adding 1300g of isoamyl xanthate, adding 750g of a mixture of ammonium sulfate and ethylenediamine phosphate salt with a mass ratio of 10:1, performing roughing for 10 minutes after slurry mixing for 4 minutes;

[0037] (2) Adjust the mass concentration of the remaining pulp after roughing to 28%, and add Na 2 S100g, add isoamyl xanthate 150g, add the mixture 120g of ammonium sulfate and ethylenediamine phosphate salt that mass ratio is 10: 1, carry out once sweeping 10 minutes; The foam product of once sweeping returns roughing operation;

[0038] Adjust the mass concentration of the pulp to 15% for the foam product ob...

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Abstract

The invention provides a flotation method of highly argillaceous alkaline gangue copper oxide ore. loatability of the highly argillaceous alkaline gangue copper oxide ore is utilized to improve a conventional sulfating flotation technique, and a flotation process of foaming agent absence-powerful activation-mud dispersion-powerful collection to efficiently recycle the copper oxide ore. The method provided by the invention comprises the following steps: firstly grinding the highly argillaceous alkaline gangue copper oxide ore, then performing size mixing on the grinded ore, and finally carrying out flotation to produce copper concentrate, wherein no foaming agent is added in the whole flotation process. Compared with the conventional sulfating flotation technique, with the adoption of the method, the recycling rate of copper is improved by more than 15% based on accordant concentrate grade, not only the influence of ore mud on the flotation process is eliminated, the efficient recovery of the copper oxide ore is guaranteed, but also the convenient flotation operation and stable index are achieved; and the method is suitable for realizing further industrial and large-scale production.

Description

technical field [0001] The invention relates to a process method for recovering copper minerals from ores by flotation, in particular to a method for efficiently recovering copper from low-grade high-mudity alkaline gangue copper oxide ores. Background technique [0002] Copper is an important non-ferrous metal related to my country's national economy and people's livelihood. It is widely used in military industry, electric power, communication, transportation, light industry, construction, machinery and other industries. With the rapid development and advancement of my country's industrialization and informatization process, the consumption demand for copper has expanded rapidly. Since 2002, my country's copper consumption surpassed that of the United States for the first time, reaching 2.6 million tons. In 2003, copper consumption was 2.9 million tons, in 2004 it was 3.29 million tons, and in 2005 it was 4.75 million tons. In 2006, the consumption of copper was nearly 5 m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/02B03D1/018B03D103/04
Inventor 方建军文书明刘殿文柏少军章晓林熊堃
Owner KUNMING UNIV OF SCI & TECH
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