Beneficiation method for recycling sulfur and gold from cyaniding tailings

A technology of cyanide tailings and ore dressing method, applied in flotation, solid separation, etc., can solve the problems of high cost, waste of resources, low recovery rate of sulfur and gold elements, etc., achieve high recovery rate, ensure recovery rate, cost reduction effect

Inactive Publication Date: 2020-10-20
ZHAOJIN MINING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the beneficiation method of cyanide tailings for the recovery of sulfur and gold has a low recovery rate for sulfur and gold elements. At the same ti...

Method used

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  • Beneficiation method for recycling sulfur and gold from cyaniding tailings
  • Beneficiation method for recycling sulfur and gold from cyaniding tailings
  • Beneficiation method for recycling sulfur and gold from cyaniding tailings

Examples

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Embodiment 1

[0048] Such as figure 1 As shown, the present embodiment provides a kind of beneficiation method of reclaiming sulfur gold from cyanide tailings, comprising the following steps:

[0049] S1. Take the cyanide tailings composed of pyrite, hematite, galena, quartz, muscovite or albite, and grind the cyanide tailings with a ball mill for 30 minutes to obtain crushed ore. The grinding fineness of the crushed ore material is 400 mesh, and the ratio of slag to the total mass is 88%.

[0050] S2. Add lime to the crushed ore obtained in step S1 at a ratio of 0.82kg / t, stir for 1 minute after adding, then add water glass at a ratio of 1.5kg / t, stir for 30min, check the pH value, and then add sulfuric acid to adjust pH, adjusted to a pH value of 6.5, stirring to prepare a slurry with a concentration of 35%.

[0051]S31, add xanthate in the ratio of 600g / t to the pulp obtained in step S2, get the required xanthate and mix it with water to make a solution of xanthate with a concentration...

Embodiment 2

[0062] Such as figure 1 As shown, the present embodiment provides a kind of beneficiation method of reclaiming sulfur gold from cyanide tailings, comprising the following steps:

[0063] S1. Take the cyanide tailings composed of pyrite, hematite, galena, quartz, muscovite or albite, and grind the cyanide tailings with a ball mill for 30 minutes to obtain crushed ore. The grinding fineness of the crushed ore material is 400 mesh, and the ratio of slag to the total mass is 93%.

[0064] S2. Add lime to the crushed ore obtained in step S1 at a ratio of 0.82kg / t, stir for 1 minute after adding, then add water glass at a ratio of 1.5kg / t, stir for 30min, check the pH value, and then add sulfuric acid to adjust pH, adjusted to a pH value of 6.5, stirring to prepare a slurry with a concentration of 35%.

[0065] S31. Add xanthate in the ratio of 900g / t to the pulp obtained in step S2, mix the required xanthate with water to prepare xanthate solution with a concentration of 5%, take...

Embodiment 3

[0076] Such asfigure 1 As shown, the present embodiment provides a kind of beneficiation method of reclaiming sulfur gold from cyanide tailings, comprising the following steps:

[0077] S1. Take the cyanide tailings composed of pyrite, hematite, galena, quartz, muscovite or albite, and grind the cyanide tailings with a ball mill for 30 minutes to obtain crushed ore. The grinding fineness of the crushed ore material is 400 mesh, and the ratio of slag to the total mass is 90%.

[0078] S2. Add lime to the crushed ore obtained in step S1 at a ratio of 0.82kg / t, stir for 1 minute after adding, then add water glass at a ratio of 1.5kg / t, stir for 30min, check the pH value, and then add sulfuric acid to adjust pH, adjusted to a pH value of 6.5, stirring to prepare a slurry with a concentration of 35%.

[0079] S31, add xanthate in the ratio of 700g / t to the pulp obtained in step S2, get the required xanthate and mix it with water to make a 5% solution of xanthate, take xanthate sol...

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Abstract

The invention relates to a beneficiation method for recycling sulfur and gold from cyaniding tailings, belonging to the technical field of beneficiation methods. The beneficiation method comprises thefollowing steps that the cyaniding tailings are ground, so crushed mineral aggregate is obtained; lime and water glass are added into the crushed mineral aggregate, a pH value is adjusted, and stirring is conducted to obtain ore pulp; a trapping agent and No. 11 flotation oil are added into the ore pulp, and roughing is conducted to respectively obtain coarse ore and rougher tailings; the trapping agent and the No.11 flotation oil are added into the coarse ore for concentration, and a concentrate, middlings and concentrated tailings are obtained respectively; and the rougher tailings and theconcentrated tailings are mixed, so tailings are obtained. According to the beneficiation method, the recovery rate of elemental sulfur and elemental gold in the cyaniding tailings is increased, and meanwhile, enterprise cost is saved.

Description

technical field [0001] The invention belongs to the technical field of mineral processing methods, and in particular relates to a mineral processing method for recovering sulfur and gold from cyanide tailings. Background technique [0002] Cyanide tailings are waste resources, and the cyanide tailings are beneficiated to effectively recover various elements, among which sulfur and gold elements account for a relatively high proportion. [0003] At present, the beneficiation method of cyanide tailings for the recovery of sulfur and gold has a low recovery rate for sulfur and gold elements. At the same time, the cost of enterprise processing is high, wasting a lot of resources, which is not conducive to efficient treatment of cyanide tailings. Sulfur and gold are recovered. Contents of the invention [0004] In order to solve the above technical problems, the present invention provides a beneficiation method for recovering sulfur and gold from cyanide tailings, which improv...

Claims

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Application Information

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IPC IPC(8): B03D1/012B03D101/02B03D103/02
CPCB03D1/012B03D2201/02B03D2203/025
Inventor 徐忠敏陈萍高军雷舒凯杨浩智刘娟
Owner ZHAOJIN MINING
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