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Micro-fine particle zinc oxide ore copper ammonia complex cascade activation-enhanced sulfuration flotation method

A copper ammonia complex and zinc oxide ore technology, applied in flotation, solid separation and other directions, can solve the problems of unsatisfactory flotation index, poor vulcanization effect, and difficulty in stable adsorption of collectors, and reduce flotation treatment. cost, solve difficult recovery, and improve the effect of flotation recovery rate

Active Publication Date: 2020-08-14
KUNMING UNIV OF SCI & TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the problems of poor vulcanization effect, difficult stable adsorption of collectors and unsatisfactory flotation index in the direct vulcanization flotation method, the present invention provides a copper ammonia complex cascade activation-enhanced vulcanization flotation of fine-grained zinc oxide ore The method is to add a combination adjuster to the finely ground zinc oxide pulp to control the slime, and then add a new activator copper ammonium complex for a primary activation. After activation, add a combined vulcanizing agent for surface strengthening vulcanization. Then add copper ammonium complex for secondary activation, and finally add combined collector and foaming agent in turn to recover zinc minerals in the ore

Method used

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  • Micro-fine particle zinc oxide ore copper ammonia complex cascade activation-enhanced sulfuration flotation method

Examples

Experimental program
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Effect test

Embodiment 1

[0036] Example 1: Such as figure 1 As shown, a copper-ammonia complex cascade activation-enhanced sulfide flotation method of fine-grained zinc oxide ore, the specific steps are as follows:

[0037] (1) The mass percentage of zinc oxide ore crushed and fined to -38μm size accounted for 75%, and the slurry was adjusted to a mass percentage of 40%; the mass percentage of zinc in the zinc oxide ore was 8.0% ;

[0038] (2) In step (1), add the combination regulator (sodium hexametaphosphate and water glass), copper ammonia complex I, combined vulcanizing agent (sodium sulfide and sodium polysulfide), copper ammonia complex II in sequence , Combine collectors (isoamyl xanthate, butyl xanthate and butyl ammonium black powder) and foaming agent (terpineol oil), perform a roughing operation to obtain a roughing concentrate and a roughing tailings; Calculated per ton of zinc oxide ore, add 1000g of combined regulator, 400g of copper ammonia complex I, 3000g of combined vulcanizing agent, ...

Embodiment 2

[0043] Example 2: Such as figure 1 As shown, a copper-ammonia complex cascade activation-enhanced sulfide flotation method of fine-grained zinc oxide ore, the specific steps are as follows:

[0044] (1) The mass percentage of zinc oxide ore crushed and fined to -38μm size is 82%, and the mass percentage of the slurry is adjusted to 35%; the mass percentage of zinc in the zinc oxide ore is 14.6% ;

[0045] (2) In step (1), add the combination regulator (sodium hexametaphosphate and water glass), copper ammonia complex I, combined sulfide agent (sodium sulfide and sodium polysulfide), copper ammonia complex II in sequence in step (1) , Combine collectors (isoamyl xanthate, butyl xanthate and butyl ammonium black powder) and foaming agent (terpineol oil), perform a roughing operation to obtain a roughing concentrate and a roughing tailings; Calculated per ton of zinc oxide ore, add 1200g of combined modifier, 600g of copper ammonia complex I, 6000g of combined vulcanizing agent, 300...

Embodiment 3

[0050] Example 3: Such as figure 1 As shown, a copper-ammonia complex cascade activation-enhanced sulfidation flotation method of fine-grained zinc oxide ore, the specific steps are as follows:

[0051] (1) The mass percentage of zinc oxide ore crushed and fined to -38μm size accounted for 90%, and the slurry was adjusted to a mass percentage of 25%; the mass percentage of zinc in the zinc oxide ore was 20.5% ;

[0052] (2) In step (1), add the combination regulator (sodium hexametaphosphate and water glass), copper ammonia complex I, combined sulfide agent (sodium sulfide and sodium polysulfide), copper ammonia complex II in sequence in step (1) , Combine collectors (isoamyl xanthate, butyl xanthate and butyl ammonium black powder) and foaming agent (terpineol oil), perform a roughing operation to obtain a roughing concentrate and a roughing tailings; Calculated per ton of zinc oxide ore, add 1500g of combined regulator, 800g of copper ammonia complex I, 8000g of combined vulcan...

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Abstract

The invention discloses a micro-fine particle zinc oxide ore copper ammonia complex cascade activation-enhanced sulfuration flotation method, belongs to the technical field of mineral processing, andaims at the problems that a direct vulcanization flotation method is poor in vulcanization effect, a collecting agent is difficult to stably adsorb, and flotation indexes are not ideal. The method comprises the following steps: crushing and grinding the zinc oxide ore until the mass percentage of the zinc oxide ore with the particle size of-38 microns accounts for 75-90%; adding a combined regulator into the ore pulp to control slime; then adding a novel activating agent copper ammonia complex for primary activation, adding a combined vulcanizing agent for surface enhanced vulcanization afteractivation, adding the copper ammonia complex into ore pulp for secondary activation after enhanced vulcanization, and finally, sequentially adding a combined collecting agent and a foaming agent forflotation recovery of zinc minerals in the ore. Gradient activation is carried out on zinc oxide minerals in the ore before and after vulcanization through the copper-ammonia complex, the number of reaction particles on the surface of the mineral is increased, the reaction activity is enhanced, and enhanced vulcanization and surface hydrophobicity enhancement of the zinc oxide minerals in the oreare achieved.

Description

Technical field [0001] The invention relates to a copper ammonia complex cascade activation-enhanced sulfidation flotation method of fine-grained zinc oxide ore, and belongs to the technical field of mineral processing. Background technique [0002] Zinc is an important non-ferrous metal, and its position in the construction of the national economy is becoming more and more important. For a long time, zinc smelting has always used zinc sulfide minerals as raw materials. However, with the continuous consumption of limited zinc sulfide resources, the existing zinc sulfide minerals can no longer meet the increasing demand for zinc. Therefore, in order to ensure the retention of zinc metal, reduce In terms of external dependence, the efficient development and utilization of zinc oxide ore will become an important way to supplement the supply of zinc metal. [0003] Zinc oxide ore is an important zinc ore resource in my country. It has abundant reserves, but it has the characteristics ...

Claims

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Application Information

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IPC IPC(8): B03D1/02B03B1/00B03B1/04B03D1/012B03D103/04B03D101/02B03D101/00
CPCB03D1/025B03B1/00B03B1/04B03D1/012B03D2203/04B03D2201/02B03D2201/007
Inventor 丰奇成王美丽文书明赵文娟
Owner KUNMING UNIV OF SCI & TECH
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