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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 aliphatic amine collectors to zinc oxide ore, Large dosage, poor solubility and dispersibility at low temperature, resulting in poor grade and recovery of zinc oxide concentrate, especially poor flotation effect of zinc oxide ore at low temperature

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

Embodiment 1

[0027] Example 1: Application of 2-butyne-1,4-bis(hexadecylpiperidinyl ammonium bromide) in flotation of zinc oxide ore (flotation temperature: 25-28°C)

[0028] A zinc oxide mine in Yunnan, the ore contains 8.97% Zn, the ore is ground to -200 mesh to account for 88%, water is added to adjust the slurry to a mass concentration of 30%, and 800g / t sodium hexametaphosphate and 4000g / t sodium sulfide are added. 170g / t 2-butyne-1,4-bis(hexadecylpiperidinyl ammonium bromide), foaming agent No. 2 oil dosage 45g / t, carry out roughing flotation of zinc oxide ore, add 1000g by sweeping / t sodium sulfide, 90g / t 2-butyne-1,4-bis(hexadecyl piperidinyl ammonium bromide), add 120g / t sodium hexametaphosphate for the first selection, and add 120g / t sodium hexametaphosphate for the second selection Add 80g / t sodium hexametaphosphate, add 60g / t sodium hexametaphosphate for the third selection, adopt the flotation process of one roughing, one sweeping, three times of refining, the flotation pro...

Embodiment 2

[0034] Example 2: Application of new surfactants in flotation of smithsonite pure minerals (flotation temperature: 15-20°C)

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

[0036] Table 2 Comparative experimental results of collector flotation pure minerals

[0037]

Embodiment 3

[0038] Example 3: Application of 2-butyne-1,4-bis(hexadecylpiperidinyl ammonium bromide) in flotation of zinc oxide ore (flotation temperature: 15-20°C)

[0039] A low-grade zinc oxide ore sample, the original ore contains Zn6.12%, the ore is ground to -200 mesh to account for 76%, the concentration of the flotation pulp is 35%, the dosage of water glass is 1200g / t, and the dosage of sodium sulfide is 8000g / t. Under the conditions of 300g / t collector dosage and 80g / t foaming agent No. 2 oil dosage, roughing flotation of zinc oxide ore is carried out, 1000g / t sodium sulfide is added for sweeping, 100g / t collector is added, and once selected The amount of water glass is 600g / t, the amount of water glass added to the second selection is 400g / t, the amount of water glass added to the third selection is 200g / t, and the amount of water glass added to the fourth selection is 100g / t. The flow chart of the flotation process is attached. image 3. Table 3 shows the flotation comparis...

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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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