Foam controlling and flotation method for zinc oxide ore

A zinc oxide ore and zinc oxide technology, applied in flotation, solid separation, etc., can solve the problems of difficult foam treatment control, large foam volume, poor fluidity, etc., and achieve the effect of improving the level of industrial flotation and avoiding adverse effects

Inactive Publication Date: 2011-09-14
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the technical problems of large amount of foam, poor fluidity, few single bubble belts and difficult control of foam treatment in the flotation of zinc oxide ore, and improve the recovery rate of industrial flotation of zinc oxide ore

Method used

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  • Foam controlling and flotation method for zinc oxide ore

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1: raw ore grade: 5% to 8% zinc, processing capacity: 40 to 60t / h zinc oxide ore;

[0020] Introduce the zinc oxide ore non-delimed slurry with a mass percentage concentration of 30% to 35% into the mixing tank, add 8 to 12kg / t of sodium sulfide to adjust the slurry, and then add 400 to 800g / t of 12 amine collectors and zinc oxide mineral response. The reacted ore pulp is introduced into the flotation machine, and mixed alcohol foaming agent 10-40g / t is added for flotation. Hydrophobic zinc oxide minerals are attached to the air bubbles and float on the liquid surface of the ore pulp to form a large amount of foam layer with poor fluidity. ;

[0021] The foam layer is quickly pushed into the foam tank of the flotation machine by the spiral bubble-discharging and quick-scraping mechanism, and then high-pressure water and high-pressure air are used to form jets to impact the foam, and the foam is transported to the foam pool;

[0022] Dissipation of foam in t...

Embodiment 2

[0024] Embodiment 2: Raw ore grade: 2% to 5% zinc, 2. Processing capacity: 20 to 40t / h zinc oxide ore;

[0025] Introduce the non-delimed ore slurry of zinc oxide ore with a mass percentage concentration of 20% to 30% into the mixing tank, add 6 to 10 kg / t of sodium sulfide to adjust the slurry, and then add 300 to 600 g / t of 18 amine collector and zinc oxide Mineral reaction, the reacted pulp is introduced into the flotation machine, and No. 2 oil is added at 10-30g / t for flotation. Hydrophobic zinc oxide minerals are attached to the air bubbles and float on the liquid surface of the pulp to form a large amount of foam with poor fluidity. layer; the foam layer is quickly pushed into the foam tank of the flotation machine by using the double-sided bubble-discharging and quick-scraping mechanism, and then high-pressure water and high-pressure air are used to form jets to impact the foam, and the foam is transported to the foam pool; the foam flow rate is 0.6 cubic meters per sec...

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Abstract

The invention relates to a foam controlling and flotation method for zinc oxide ore. The method comprises the steps of: mixing slurry by using a vulcanized agent, and performing flotation by using an amine-containing collecting agent to form a foam layer with large foam output and low flowability, pushing the foam layer to a foam groove by using a quick foam scraping mechanism and then conveying into a foam pool for defoaming, returning the defoamed pulp, and performing flotation to improve the zinc concentrate grade further. In the technology, a large amount of difficultly-treated foam which is produced through flotation of the zinc oxide ore and has low flowability and long service life is quickly discharged by a mechanical mode and is defoamed by the foam pool to ensure the technical indexes of the industrial flotation of the zinc oxide ore, and the method has an positive effect on the high-efficiency recycling of the zinc oxide mineral resources.

Description

1. Technical field: [0001] The invention relates to a foam-controlled flotation method for zinc oxide ore, and belongs to the field of mineral flotation methods and technologies. 2. Background technology: [0002] Flotation is the main method for separating and enriching useful minerals, and the recovery of zinc oxide ore mainly adopts flotation method. Sulfur-xanthate flotation, sulfur-amine flotation, and fatty acid direct flotation have achieved different effects on different zinc oxide ores, but sulfide-amine flotation has become the most commonly used method. However, amine is extremely sensitive to ore slime, and the existence of ore slime has seriously affected the effect of amine method flotation, and the recovery rate that causes this method to deal with zinc oxide ore is generally about 50%, and a large amount of zinc oxide ore resources cannot be obtained because of this. To make good use of it, the waste of resources is huge. [0003] Theoretical and laboratory...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/00B03D1/02
Inventor 文书明龙泽毅柏少军刘丹汪伦
Owner KUNMING UNIV OF SCI & TECH
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