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Iron ore reverse flotation reagent and application method thereof

A technology of reverse flotation and iron ore, applied in the field of iron ore, can solve the problem of low separation selectivity of useful minerals and gangue minerals, and achieve the effect of preventing repeated pollution

Active Publication Date: 2018-11-30
山西亚鑫能源集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the reagent used for reverse flotation of iron ore has low selectivity for the separation of useful minerals and gangue minerals, and needs to be improved.

Method used

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  • Iron ore reverse flotation reagent and application method thereof
  • Iron ore reverse flotation reagent and application method thereof
  • Iron ore reverse flotation reagent and application method thereof

Examples

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Embodiment 2

[0063] Example 2 is better than Comparative Examples 2 and 3 in the iron grade and iron yield of concentrate and the iron grade and iron yield of tailings.

[0064] Comparative example 4 is inferior to comparative example 2 in terms of concentrate iron grade and iron yield and tailings iron grade and iron yield, but is similar to comparative example 3. It can be seen that the complexing agent can improve the separation selectivity of useful minerals and gangue minerals, while sodium tripolyphosphate has little effect on the separation selectivity of useful minerals and gangue minerals. However, the complex use of complexing agent and sodium tripolyphosphate leads to the improvement of the separation selectivity of useful minerals and gangue minerals than the separate use of complexing agent and sodium tripolyphosphate leads to the separation selectivity of useful minerals and gangue minerals The sum of the degree of improvement. Therefore, the complexing agent and sodium trip...

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Abstract

The invention discloses an iron ore reverse flotation reagent and an application method thereof. The iron ore reverse flotation reagent comprises following components including, by weight, 50-60 partsof dodecylamine hydrochloride, 40-50 parts of dodecyl trimethyl ammonium chloride, 10-15 parts of sodium fluoride, 10-15 parts of water glass, 10-15 parts of polyacrylamide, 15-20 parts of sodium tripolyphosphate, 10-20 parts of inhibitor and 3-5 parts of pH adjusting agents. The iron ore reverse flotation reagent has the beneficial effect of being relatively high in separation selectivity for valuable minerals and gangue minerals.

Description

technical field [0001] The invention relates to iron ore, in particular to an iron ore reverse flotation agent and its application method. Background technique [0002] my country's iron ore resources have the characteristics of low raw ore grade, complex composition, and fine particle size. It is difficult to meet the requirements of smelting only by traditional magnetic separation technology. Flotation plays an increasingly important role in iron ore beneficiation. Flotation uses flotation agents to flexibly and effectively control the flotation process, and successfully separates useful minerals and gangue minerals. Among them, the method of discharging gangue minerals in the slurry as tailings is called forward flotation, and vice versa is called reverse flotation. [0003] The Chinese patent with the publication number CN103495506A discloses a medicament for reverse flotation of iron ore and a combined use method. The medicament for reverse flotation of iron ore cons...

Claims

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Application Information

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IPC IPC(8): B03D1/018B03D101/00B03D101/06B03D103/04
CPCB03D1/018B03D2201/007B03D2201/06B03D2203/04
Inventor 戴天珍
Owner 山西亚鑫能源集团有限公司
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