Application method of novel surfactant in zinc oxide ore flotation

A technology of surfactant and application method, applied in flotation, solid separation and other directions, can solve the problems of poor grade and recovery rate of zinc oxide concentrate, poor flotation effect of zinc oxide ore, poor solubility and dispersibility, etc. The value of promotion and application, the effect of strong action ability, and the effect of improving grade and recovery rate

Active Publication Date: 2019-12-03
JIANGXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art, provide a kind of application method of novel surfactant on the flotation of zinc oxide ore, solve the poor selectivity of existing

Method used

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  • Application method of novel surfactant in zinc oxide ore flotation
  • Application method of novel surfactant in zinc oxide ore flotation
  • Application method of novel surfactant in zinc oxide ore flotation

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Example 1: Application of 2-butyne-1,4-bis(hexadecylpiperidine alkyl ammonium bromide) in the flotation of zinc oxide ore (flotation temperature: 25-28℃)

[0028] A zinc oxide mine in Yunnan, the raw ore contains 8.97% Zn. Grind the ore to -200 mesh accounting for 88%, add water to adjust the slurry to a mass concentration of 30%, add 800g / t sodium hexametaphosphate, 4000g / t sodium sulfide, 170g / t 2-butyne-1,4-bis(hexadecyl piperidine alkyl ammonium bromide), the amount of foaming agent No. 2 oil is 45g / t, for rough flotation of zinc oxide ore, and 1000g is added for sweeping / t sodium sulfide, 90g / t 2-butyne-1,4-bis(hexadecylpiperidine alkyl ammonium bromide), 120g / t sodium hexametaphosphate is added for the first selection, and the second selection Add 80g / t sodium hexametaphosphate, add 60g / t sodium hexametaphosphate for the third selection, adopt a flotation process of one rough selection, one sweep selection, and three selections. The flotation process flow chart is ...

Example Embodiment

[0034] Example 2: Application of a new type of surfactant in the flotation of pure minerals of zincensite (flotation temperature: 15-20℃)

[0035] Put 2.0g of pure zincite minerals with a particle size of -0.15mm~+0.074mm in a 40mL flotation tank, add 30mL of distilled water, stir for 2min to make it evenly mixed, under the condition that the amount of collector is 80g / t Flotation and flotation process flow chart are attached figure 2 . The flotation test results of the new collector in the present invention and the two commonly used collectors dodecylamine and hexadecylamine are shown in Table 2. It can be seen from Table 2 that the new collector has a significantly stronger ability to collect smithsonite than the two commonly used aliphatic amine collectors.

[0036] Table 2 Comparison test results of collector flotation pure minerals

[0037]

Example Embodiment

[0038] Example 3: Application of 2-butyne-1,4-bis(hexadecylpiperidine alkyl ammonium bromide) in the flotation of zinc oxide ore (flotation temperature: 15-20℃)

[0039] A low-grade zinc oxide ore sample, the original ore contains 6.12% Zn, the ore is ground to -200 mesh accounting for 76%, the flotation slurry concentration is 35%, the amount of water glass is 1200g / t, the amount of sodium sulfide is 8000g / t, The amount of collector is 300g / t, the amount of foaming agent No. 2 oil is 80g / t, and the flotation of zinc oxide ore is carried out. Sodium sulfide 1000g / t and 100g / t of collector are added in the sweeping selection. The amount of water glass is 600g / t, the amount of water glass added in the second selection is 400g / t, the amount of water glass added in the third selection is 200g / t, and the amount of water glass added in the fourth selection is 100g / t. The flotation process flow chart is attached. image 3 . Table 3 shows the flotation comparison test results of the nov...

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Abstract

The invention discloses an application method of a novel surfactant in zinc oxide ore flotation. In the zinc oxide ore flotation, the novel surfactant as shown in a formula I is used as a collector. When the novel surfactant is used as a flotation collector, the novel surfactant has two mineralophilic groups in the molecule, and thus the novel surfactant has a stronger interaction ability with mineral surfaces and has better selectivity for target mineral; the novel surfactant has two hydrophobic groups, and thus the hydrophobicity of the collector is increased, the ability to collect the target mineral is stronger, and compared with commonly used flotation collectors in the prior art, the novel surfactant has the characteristics of capability of effectively improving the flotation efficiency and recovery rate; and meanwhile, because the molecule of the novel surfactant contains unsaturated alkynyl, the novel surfactant has the characteristics of a low Krafft point. Compared with the commonly used flotation collectors in the prior art, the novel surfactant can effectively improve the flotation efficiency and recovery rate of zinc oxide ore, and can be used at low temperatures.

Description

technical field [0001] The invention belongs to the technical field of mineral processing, and in particular relates to an application method of a novel surfactant in flotation of zinc oxide ore. Background technique [0002] Zinc is an important strategic resource in my country and occupies an important position in the non-ferrous metal industry. As of 2016, the world has identified more than 1.9 billion tons of zinc resources and more than 250 million tons of zinc reserves. Zinc ore resources are mainly distributed in China, the United States, Peru, Kazakhstan and Australia and other countries. The types of zinc deposits in the world are mainly Mississippi Valley type, exhalative sedimentary type, glutenite type, pyrite type, and skarn type, hydrothermal type, and porphyry type are rare. my country's zinc ore resources are relatively abundant. As of 2016, the proven zinc resources are about 137.377 million tons. my country's zinc ore resources are mainly distributed in ...

Claims

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Application Information

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IPC IPC(8): B03D1/01B03D101/02B03D103/04
CPCB03D1/01B03D2201/02B03D2203/04
Inventor 黄志强邱廷省刘祖文余新阳李立清廖春发赵奎何桂春艾光华冯博
Owner JIANGXI UNIV OF SCI & TECH
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