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

A technology of oxadiazole and collector, which is applied in 1 field to achieve the effect of improving flotation recovery, improving flotation index, and increasing the recovery rate of valuable metals

Active Publication Date: 2018-04-03
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] At present, there is no report about 1,3,4-oxadiazole-2-thione heterocyclic compounds used as flotation collectors in the prior art

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] At a concentration of 5-heptyl-1,3,4-oxadiazole-2-thione of 2×10 -5 mol / L, the pH of the pulp is 9.0, the concentration of the blowing 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 flotation for 3 minutes. At this time, the flotation recovery rate of the chalcopyrite reaches 97.2%.

Embodiment 2

[0051] In 5-octanol polyethylene (2) ether methyl-1,3,4-oxadiazole-2-thione concentration is 1×10 -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 94.8%.

Embodiment 3

[0053] 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 5-hydrocarbyl-1,3,4-oxadiazole-2-thione collector achieved a higher copper recovery (sweeping concentrate) than butyl xanthate.

[0054] Table 1 Conditions and results of 5-hydrocarbyl-1,3,4-oxadiazole-2-thione flotation of sulfide-copper oxide ore in Dongchuan, Yunnan

[0055]

[0056]

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Abstract

The invention discloses application of a 1,3,4-oxadiazole-2-thioketone flotation collector. According to the application, a 1,3,4-oxadiazole-2-thioketone compound is adopted as a mineral flotation collector for application to flotation recovery of valuable metals in ore which contains a copper, silver or gold mineral. Compared with a common flotation collector in the prior art, the 1,3,4-oxadiazole-2-thioketone flotation collector has the advantage that enrichment and recovery of the copper, silver or gold mineral 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 1,3,4-oxadiazole-2-thione flotation collector. Background technique [0002] 1,3,4-Oxadiazole-2-thione compounds have a wide range of biological activities, and are used in the fields of agriculture and medicine for anti-inflammatory, antibacterial, anti-cancer, insecticide and regulation of plant growth. In addition, 1,3,4-oxadiazole-2-thione has good coordination ability with metal ions, and its complexes have potential application value in catalysis, magnetism, optoelectronics and so on. [0003] The preparation method of 1,3,4-oxadiazole-2-thione mainly uses hydrazide as raw material, and KOH, CS 2 Reflux reaction and the system (such as equation 1). [0004] [0005] Li et al. used aromatic hydrazides containing substituents, CS 2 , KOH as a raw material, ethanol as a solvent, reflux reaction for 8h, 5-phenyl-1,3,4-oxadiazole-2-thione...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/012B03D101/02B03D103/04C07D271/113
CPCB03D1/012B03D2201/02B03D2203/025C07D271/113
Inventor 刘广义麻龙群黄耀国钟宏
Owner CENT SOUTH UNIV
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