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Method for promoting sulfide floatation of copper oxide ores with amino acid

A copper oxide and amino acid technology, applied in flotation, solid separation, etc., can solve the problems of easily polluting the ecological environment, difficult wastewater treatment, low addition amount, etc., and achieve the effect of improving flotation efficiency

Inactive Publication Date: 2017-06-13
HUNAN RES INST FOR NONFERROUS METALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above process, whether it is sulfide, ammonium sulfate or ammonium organic matter, the amount added in the industrial flotation process is not low, and the waste water after flotation is difficult to treat and easy to pollute the ecological environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Add 10g of copper oxide ore powder and 120 mL of water into the flotation tank, turn on the mixer and stir evenly, add sodium sulfide solution at a ratio of 3000 g / t, and then add 0 g / t, 100 g / t, 300 g / t t. Add lysine at a ratio of 800 g / t. After reacting for 3 minutes, add 200 g / t butyl xanthate and 10 g / t No. 2 oil. Finally, scrape and bubble, and filter and dry the collected mineral samples. , the results showed that the flotation recovery rate of copper oxide ore reached 82% under the addition of lysine 100 g / t.

Embodiment 2

[0021] Add 10g of copper oxide ore powder and 120 mL of water into the flotation tank, turn on the mixer and stir evenly, add sodium sulfide solution at a ratio of 3000 g / t, and then add 0 g / t, 100 g / t, 300 g / t t. Add phenylalanine at a ratio of 800 g / t. After reacting for 3 minutes, add 200 g / t butyl xanthate and 10 g / t No. 2 oil. Finally, scrape and bubble, and filter and dry the collected mineral samples. , the results showed that the flotation recovery of copper oxide ore increased by 82%, 83% and 85% respectively under the addition of 100 g / t, 300 g / t and 800 g / t of phenylalanine.

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Abstract

The invention discloses a method for promoting sulfide floatation of copper oxide ores with amino acid. The method comprises the following steps: adding an amino acid solution which serves as an activating agent into sulfurized copper oxide ore pulp and floating in a floatation machine with xanthate which serves as a collecting agent. In the method, according to the characteristics of sulfide floatation of the copper oxide ores, the amino acid is added in a floatation process, so that the floatation efficiency of the copper oxide ores is improved. According to the method, firstly, the copper oxide ores are crushed and sieved; then, the amino acid, a sulfide and relevant floatation agents are added into the floatation machine; and floatation is performed by controlling time. Compared with a conventional floatation process with no added amino acid, the method has the advantage that the floatation recovery rate of the copper oxide ores is improved by 10%. The amino acid has an obvious promoting effect in the sulfide floatation process of the copper oxide ores, so that a novel application way is provided for industrial floatation of the copper oxide ores.

Description

technical field [0001] The invention belongs to the technical field of beneficiation of copper oxide ore, in particular to a method for promoting sulfidation flotation of copper oxide ore by amino acid. Background technique [0002] Among the world's copper ore reserves, copper oxide ore and mixed copper ore account for between 10% and 15%. In my country's copper ore resources, copper oxide ore accounts for a quarter of its reserves. A large portion of the copper sulfide deposits has oxidation zones and large copper oxide deposits in the upper part. Therefore, efficient development and utilization of copper oxide ore is a hot topic in copper ore beneficiation today. Minerals such as malachite, azurite, cuprite, and chrysocolla are representative types of copper oxide minerals. The industrial copper oxide ore flotation process generally adopts the vulcanization-xanthate method. When vulcanizing copper oxide minerals, sodium sulfide is the most commonly used vulcanizing agen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/01B03D1/02B03D101/00B03D103/04
CPCB03D1/01B03D1/025B03D2201/00B03D2203/04
Inventor 陈代雄朱建裕杨建文曾健胡波宋子博董艳红李晓东薛伟
Owner HUNAN RES INST FOR NONFERROUS METALS
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