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Independent silver ore flotation method

A silver ore, independent technology, applied in the flotation field of independent silver ore, can solve the problems of low recovery rate, serious package, many types, etc., to achieve the effect of improving grade and recovery rate, reducing metallurgical cost, and improving utilization efficiency

Inactive Publication Date: 2016-02-03
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the technical problems such as many types of silver-containing minerals in independent silver mines, complex embedding relationship, serious wrapping, difficulty in flotation recovery, and low recovery rate, and proposes a method for efficient recycling of refractory independent silver ore resources. Improving the Recovery Efficiency of Refractory Silver Ore Resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Put the independent silver ore containing 140g / t of silver into the mill, and grind the ore (through wet grinding) until 80% of the silver minerals in it are dissociated; put the ore slurry after grinding into the flotation tank, add lead The galena concentrate with a content of 50% (the amount of lead ore concentrate added is 3% of the mass of independent silver ore) is fully stirred, and 2000g / t of sodium sulfide is added to sulfide the silver oxide minerals, and 50g / t is added The butyl xanthate and 200g / t butyl ammonium black powder are used as collectors for silver minerals. After three times of roughing, one sweeping and three times of beneficiation, the silver concentrate product is obtained.

[0022] The grade of silver in the obtained concentrate is 5150g / t, and the recovery rate is 71%; the grade of lead is 48%, and the recovery rate is 62%.

Embodiment 2

[0024] Put the independent silver ore containing 100g / t of silver into the mill, and grind until 85% of the silver ore in it is dissociated. Put the ore pulp after grinding into the flotation tank, add white lead ore concentrate with a lead content of 65% (the amount of lead ore concentrate is 1% of the mass of independent silver ore) and stir well, add 1500g / t of Sodium sulfide, sulfide the silver oxide minerals in it, add 150g / t butyl xanthate and 150g / t butyl ammonium black powder as collectors for silver minerals, after three times of roughing, one time of sweeping, three times of beneficiation, Obtain silver concentrate product.

[0025] The grade of silver in the obtained concentrate is 5900g / t, and the recovery rate is 67%; the grade of lead is 42%, and the recovery rate is 73%.

Embodiment 3

[0027] Put the independent silver ore containing 170g / t of silver into the mill, and grind until 90% of the silver ore in it is dissociated. Put the ore pulp after grinding into the flotation tank, add lead ore concentrate with a lead content of 58% (the amount of lead ore concentrate added is 4% of the mass of independent silver ore) and fully stir, wherein, the lead ore concentrate Chinese galena accounts for 70%, white lead ore accounts for 30%, adding 500g / t of sodium sulfide to sulfide the silver oxide minerals, adding 200g / t of butyl xanthate and 50g / t of butylammonium black medicine, as silver Mineral collector, after three times of roughing, one time of sweeping and three times of beneficiation, the silver concentrate product is obtained.

[0028] The grade of silver in the obtained concentrate is 4860g / t, and the recovery rate is 75%; the grade of lead is 54%, and the recovery rate is 61%.

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Abstract

The invention relates to an independent silver ore flotation method and belongs to the ore dressing technologies. The independent silver ore flotation method includes the step that lead concentrate is used as a carrier for flotation of independent silver ore, i.e., independent silver ore is ground and then placed into a flotation tank, the lead concentrate is added and stirred fully, then an adjusting agent and a collecting agent are added, and silver is effectively concentrated through flotation. By means of the independent silver ore flotation method, independent silver ore resources difficult to process currently can be effectively recycled, the silver grade and the silver recycling rate are greatly improved, and the independent silver ore flotation method has good economic benefits.

Description

technical field [0001] The invention relates to a flotation method for independent silver ore, which belongs to the technical field of mineral processing. Background technique [0002] The independent silver deposit is a newly discovered type of deposit in recent decades. The silver in the independent silver deposit mainly exists in the form of independent silver minerals, mainly including silver complex sulfur salts, sulfides, natural elements, intermetallic compounds, selenides and halide. However, this kind of ore has complex components, many types of silver ore, low grade, extremely fine particle size, large difference in selectivity, and extremely low content of associated non-ferrous metals. These associated non-ferrous metals mostly exist in the form of sulfide minerals, and some of them are oxidized into oxidized minerals. For this kind of independent silver mine, it is more difficult to improve the comprehensive recovery rate of dressing and smelting. [0003] Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/00B03D1/012B03D101/02B03D103/04
Inventor 王伊杰文书明刘殿文刘丹李金林
Owner KUNMING UNIV OF SCI & TECH
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