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High-carbon and low-sulfur type gold ore floating agent and floating method thereof

A flotation agent and gold ore technology, applied in the field of gold separation, can solve the problems of difficult control and complex process, and achieve the effects of high recovery rate, simple separation process and easy operation.

Inactive Publication Date: 2011-05-11
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] "Gold" in 2009, Volume 30, P40-42, Liang Zelai et al. "The production practice of the flotation process transformation of a refractory gold ore containing arsenic, antimony and organic carbon". On the basis of the selection, it was changed to two-stage rough selection, two-stage sweeping and three-stage selection, which improved the recovery rate compared with the original technical scheme. Although the consumption of butyl xanthate, 2# oil and lime was reduced, the starting point was increased. Foaming agent and depressant, the agent needs to be adjusted for each stage of scanning and selection, the process is complicated and difficult to control

Method used

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  • High-carbon and low-sulfur type gold ore floating agent and floating method thereof
  • High-carbon and low-sulfur type gold ore floating agent and floating method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] a. Take 1000g of a high-carbon and low-sulfur gold ore in Jilin, pulverize it, and grind it to -200 mesh;

[0046] b. Put the high-carbon gold ore powder ground to -200 mesh in the sorting tank, and adjust the slurry to a concentration of 40% according to the mass percentage;

[0047] c. According to the mass ratio of high-carbon and low-sulfur gold ore powder before pulping, 2.0ml concentration of 98% H 2 SO 4 , 0.16g Na 2 S and 1.8gNa 2 SO 3 , stir and activate for 2 minutes;

[0048] d. Add 0.1g NaCl and 0.9g CaO in sequence according to the mass ratio of high-carbon gold ore powder before pulping 2 , 0.06g No. 2 oil, 0.2g butyl xanthate and 0.08g butylamine black medicine, stir well;

[0049] e, roughing for 8 minutes to obtain gold concentrate and roughing tailings;

[0050] f, the gold concentrate is selected for 3 minutes to obtain gold concentrate powder, and the tailings are discarded;

[0051] g. After scavenging the roughing tailings for 10 minutes, t...

Embodiment 2

[0055] a. Take 2000g of a high-carbon and low-sulfur gold ore in Liaoning, crush it, and grind it to -200 mesh;

[0056] b. Put the high-carbon gold ore powder ground to -200 mesh in the sorting tank, and adjust the slurry to a concentration of 40% according to the mass percentage;

[0057] c. According to the mass ratio of the high-carbon gold ore powder before pulping, add 2.0ml of 98% H 2 SO 4, 0.5g Na 2 S and 2.0gNa 2 SO 3 , stir and activate for 3 minutes;

[0058] d. Add 0.9g NaCl and 1.8gCaO, 0.06g No. 2 oil, 0.18g isoamyl xanthate and 0.09g butylamine black medicine in sequence according to the mass ratio of the high-carbon and low-sulfur gold ore powder before mixing, and stir evenly ;

[0059] e, roughing for 10 minutes to obtain gold concentrate and roughing tailings;

[0060] f, the gold concentrate was selected for 5 minutes to obtain gold concentrate powder, and the tailings were discarded;

[0061] g. The roughing tailings are swept for 11 minutes to obt...

Embodiment 3

[0065] a. Take 2000g of a high-carbon and low-sulfur gold ore in Guizhou, crush it, and grind it to -200 mesh;

[0066] b. Put the high-carbon and low-sulfur gold ore powder ground to -200 mesh in the sorting tank, and adjust the slurry to a concentration of 40% according to the mass percentage;

[0067] c. According to the mass ratio of the high-carbon gold ore powder before pulping, add 1.5ml of 98% H 2 SO 4 , 2.2g Na 2 S and 1.08gNa 2 SO 3 , stir and activate for 4 minutes;

[0068] d. Add 0.8g NaCl and 1.2g CaO in sequence according to the mass ratio of high-carbon gold ore powder before pulping 2 , 0.048g No. 2 oil, 0.19g butyl xanthate, 0.02g isopentyl xanthate and 0.04g butylamine black medicine, stir well;

[0069] e. Rough selection for 11 minutes;

[0070] f. Select for 5 minutes, discard the tailings, and obtain gold concentrate;

[0071] g. Sweeping for 10 minutes to obtain middle ore and tailings;

[0072] h. The selected tailings and middle ore return to...

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Abstract

The invention relates to a high-carbon and low-sulfur type gold ore floating agent and a floating method thereof. The floating agent comprises an activating agent, an adjusting agent, a foaming agent and a collecting agent. The floating method comprises the following steps: smashing and grinding each of high-carbon and low-sulfur type gold ores into 200 meshes and adding the activating agent, theadjusting agent, the foaming agent and the collecting agent in sequence for uniform agitation after size mixing; roughing to obtain gold concentrate ores and rougher tailings, obtaining gold concentrate powder and cleaner tailings after the gold concentrate ores are chosen; obtaining scavenger gold ores and tailings after the rougher tailings are scavenged; discarding the tailings; and returning the scavenger gold ores and the cleaner tailings into a flotation tank for re-separation. The invention solves the problem that the high-carbon and low-sulfur type gold ore is hard to soak and float, so that the explored high-carbon and low-sulfur type gold ore is developed and utilized. Compared with the prior art, the floating method has short sorting process, simple process, relatively low sorting cost, high recovery rate and easiness in operation.

Description

Technical field: [0001] The invention relates to a method for separating gold from high-carbon gold ores, in particular to a flotation agent and a flotation method for flotation gold from high-carbon and low-sulfur gold ores. Background technique: [0002] High-carbon and low-sulfur gold (tailing) ore is one of the hard-to-use mines. Due to the presence of carbon in the ore, it directly affects the extraction of gold. Generally speaking, carbon in high-carbon gold deposits can be divided into two types: one is organic carbon, and the other is amorphous carbon. These two carbons are often in the form of fine particles or mud, and have a strong adsorption effect on gold, which makes it difficult for gold to leach and float in high-carbon gold ores. Also relatively high. This not only causes a waste of resources, but also makes it difficult to use the high-carbon and low-sulfur gold deposits with superimposed causes under the current economic technology and environmental con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/001B03B1/00B03D103/02
Inventor 张佳楠张渊孙丰月王力张五荣
Owner JILIN UNIV
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