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Application of a 1,2,4,5-tetrazole-3-thione flotation collector

A technology of collectors and flotation reagents, applied in 1 field, to achieve the effect of improving flotation recovery, increasing the recovery rate of valuable metals, and improving flotation indicators

Active Publication Date: 2018-05-11
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there is no report about 1,2,4,5-tetrazole-3-thione compounds used as flotation collectors in the prior art

Method used

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  • Application of a 1,2,4,5-tetrazole-3-thione flotation collector
  • Application of a 1,2,4,5-tetrazole-3-thione flotation collector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] In 6-hexyl-1,2,4,5-tetrazole-3-thione at a concentration of 1×10 -5 mol / L, the pH of the pulp is 8.5, the concentration of the foaming agent methyl isobutyl carbinol (MIBC) is 15mg / L, N 2 The gas flow rate is 200mL / min, and the chalcopyrite with a particle size of -0.076mm~+0.038mm is floated for 3 minutes. At this time, the flotation recovery rate of the chalcopyrite reaches 93.2%.

Embodiment 2

[0043] In 6,6-methylhexyl-1,2,4,5-tetrazole-3-thione at a concentration of 2×10 -4 mol / L, the pH of the pulp is 8.5, the concentration of foaming agent MIBC is 15mg / L, N 2 The air flow rate is 200mL / min, and the malachite whose particle size is -0.076mm~+0.038mm is flotation for 3 minutes, and the flotation recovery rate of malachite is 97.6%.

Embodiment 3

[0045] A sulfide-oxidized copper ore sample in Dongchuan, Yunnan, the original ore contains 0.63% Cu, and its oxidation rate is 26.5%. Test process: one rough selection and one sweep. Grinding fineness: -0.074mm accounts for 90%; chemical conditions: roughing sodium sulfide 300 g / ton (pH 7.5 of pulp), sweeping sodium sulfide 800 g / ton (pH 8.0 of pulp), other chemical conditions And its results are shown in Table 1. The test results in Table 1 show that the 6-hydrocarbyl-1,2,4,5-tetrazolium-3-thione collector achieved higher copper recovery (sweep concentrate) than butyl xanthate.

[0046] Table 1 Conditions and results of flotation of 6-hydrocarbyl-1,2,4,5-tetrazole-3-thione sulfide-copper oxide ore in Dongchuan, Yunnan

[0047]

[0048]

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Abstract

The invention discloses application of a 1,2,4,5-tetrazole-3-thioketone flotation collecting agent. The application is characterized in that a 1,2,4,5-tetrazole-3-thioketone compound as a mineral flotation collecting agent is applied to minerals containing copper, silver or gold to recycle valuable metal in a flotation manner, and compared with a common flotation collecting agent in prior art, enriching and recycle of copper, silver or gold minerals can be effectively improved.

Description

technical field [0001] The invention belongs to the field of metal beneficiation, and in particular relates to the application of a 1,2,4,5-tetrazole-3-thione flotation collector. Background technique [0002] 1,2,4,5-tetrazole-3-thione compounds have good biological activity, photochromic properties and metal chelating properties, and can be used as antibacterial agents, herbicides, antihypertensive drugs, and photosensitive materials , light energy materials and corrosion inhibitors, and its metal complexes have light, electricity and magnetic functions. [0003] Gopalakrishnan et al. mixed aromatic aldehyde, thiourea, and ammonium acetate in a ratio (molar ratio) of 1:1:2, and in NaHSO 4 ·SiO2 2 6-substituted phenyl-1,2,4,5-tetrazole-3-thione (Gopalakrishnan M., Thanusu J., Kanagarajan V..Easy-to-execute'one-pot 'synthesis of 1, 2, 4, 5-tetrazines catalyzed by activated fly ash [J]. Journal of the Korean Chemical Society, 2007, 51(6): 520-525; Gopalakrishnan M., Suresh...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/012B03D101/02B03D103/02
CPCB03D1/012B03D2201/02B03D2203/02
Inventor 刘广义刘俊胡哲
Owner CENT SOUTH UNIV
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