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A combined flotation agent for flotation of high-arsenic carbon pyrite-type gold ore and its application

A pyrite-type, flotation agent technology, applied in flotation, solid separation, etc., can solve the problem of poor flotation selectivity, and achieve the effect of high adsorption density, low toxicity, and wide sources

Active Publication Date: 2019-11-05
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in gold flotation production, the most common combined collector is the combination of pentyl xanthate and butylammonium black drug, but this combination has the problem of poor flotation selectivity for gold mines where gangue minerals are easy to muddy.

Method used

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  • A combined flotation agent for flotation of high-arsenic carbon pyrite-type gold ore and its application
  • A combined flotation agent for flotation of high-arsenic carbon pyrite-type gold ore and its application
  • A combined flotation agent for flotation of high-arsenic carbon pyrite-type gold ore and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] will have [CS x ] 2- The flotation agent of functional group (sodium trithiocarbonate, x=3) and has R-OCSS - The flotation agent of the functional group (isoamyl xanthate, R=5) is mixed in a weight ratio of 1:4 to prepare the combined flotation agent of the present invention.

[0028] The combined flotation agent of this embodiment is used for the flotation operation of the high-arsenic carbon-containing pyrite-type gold ore in a certain area of ​​Xinjiang above, and its process flow chart is as follows figure 1 shown, including the following steps:

[0029] (1) Grinding and grading, the particles whose grinding particle size is controlled at -0.074mm account for more than 80%; prepare the pulp after grinding, and the mass fraction of the pulp is 27%.

[0030](2) According to each ton of pulp, add 750g / t sodium carbonate to the pulp to adjust the pH value and dispersibility of the pulp, control the pH value of the pulp to 8, and stir for 3 minutes; add 750g / t water g...

Embodiment 2

[0032] will have [CS x ] 2- The flotation agent of functional group (sodium tetrathiocarbonate, x=4) and has R-OCSS - The flotation agent of the functional group (isobutyl xanthate, R=4) is prepared in a weight ratio of 1:2 to prepare the combined flotation agent of the present invention.

[0033] The combined flotation agent of the present embodiment is used for the flotation operation of the high-arsenic carbon-containing pyrite type gold ore in a certain area of ​​Xinjiang above, comprising the following steps:

[0034] (1) Grinding and grading, the particles whose grinding particle size is controlled at -0.074mm account for more than 80%; prepare the pulp after grinding, and the mass fraction of the pulp is 27%.

[0035] (2) According to each ton of pulp, add 1000g / t sodium carbonate to the pulp to adjust the pH value and dispersibility of the pulp, control the pH value of the pulp to 9, and stir for 3 minutes; add 1000g / t water glass agent to the pulp, To disperse the ...

Embodiment 3

[0037] will have [CS x ] 2- The flotation agent of functional group (sodium pentathiocarbonate, x=5) and has R-OCSS - The flotation agent of the functional group (ethyl xanthate, R=2) is formulated in a weight ratio of 1:1 to prepare the combined flotation agent of the present invention.

[0038] The combined flotation agent of the present embodiment is used for the flotation operation of the high-arsenic carbon-containing pyrite type gold ore in a certain area of ​​Xinjiang above, comprising the following steps:

[0039] (1) Grinding and grading, the particles whose grinding particle size is controlled at -0.074mm account for more than 80%; prepare the pulp after grinding, and the mass fraction of the pulp is 27%.

[0040] (2) According to each ton of pulp, add 1250g / t sodium carbonate to the pulp to adjust the pH value and dispersibility of the pulp, control the pH value of the pulp to 10, and stir for 3 minutes; add 1250g / t water glass agent to the pulp, To disperse the ...

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Abstract

The invention provides a combined flotation agent for flotation of high-arsenic carbonaceous pyrite type gold ores. The combined flotation agent is composed of a flotation reagent with [CSx]<2->functional groups and a flotation reagent with R-OCSS<->functional groups in a weight ratio of 1:1 to 1:5, wherein the value range of x ranges from 3 to 5, and R is a hydrocarbon group with 4-6 carbon atoms. The invention further provides the application of the combined flotation agent. Under the same dosage of the agent, by the adoption of the combined flotation agent, the grade and recovery rate of the high-arsenic carbonaceous pyrite type gold ores can be effectively increased, mineral resources are utilized to a greater extent, and the income is increased.

Description

technical field [0001] The invention belongs to the field of mineral flotation, in particular to a combined flotation agent for flotation of high-arsenic carbon-containing pyrite-type gold ore and its application. Background technique [0002] As one of the rarest and most precious metals, gold has attracted widespread attention. It not only plays an important role in economy and industry, but also is a special currency for reserve and investment. There are more than 2,000 gold mines in my country, and the geological resources of gold mines are characterized by few large mines, small scale, low grade and scattered resources. By the end of 2002, the reserves of independent gold mines in my country were about 3,000 tons, of which the reserves of refractory metallurgical ores accounted for about 1,000 tons. Ores with arsenic content above 0.1% are typical refractory gold mines, and they are also an important part of my country's gold mine resources, which are distributed in th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/012B03D1/002B03D1/008B03D101/02B03D103/02B03D101/04
CPCB03D1/002B03D1/008B03D1/012B03D2201/007B03D2201/02B03D2201/04B03D2203/025
Inventor 王毓华卢东方郑霞裕姚兰星赵悦豪郑海涛褚浩然
Owner CENT SOUTH UNIV
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