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Stibnite flotation technology

An antimony and flotation technology, applied in flotation, solid separation and other directions, can solve the problems of reducing the lead content of antimony concentrate, weak collection capacity, low antimony recovery rate, etc. Work environment and effect of reducing antimony smelting cost

Inactive Publication Date: 2014-11-05
HUNAN ANHUA ZHAZIXI MINING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the flotation process of stibnite in the prior art, there is a single collector to the collection ability of stibnite which is not strong, and the selectivity is poor, so that the recovery rate of antimony in the stibnite is not high. The purpose of the present invention The purpose is to provide a process for using composite collectors to improve the selective collection of antimony in ores, reduce the lead content in antimony concentrates, and efficiently collect high-grade antimony concentrates from stibnite by flotation. This process reduces the subsequent smelting cost of antimony concentrate, improves the working environment of operators, and meets the requirements of industrial production

Method used

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  • Stibnite flotation technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Take 1000g of antimony stibnite ore containing 3.6wt% antimony, grind it to 77% and pass through a 0.074mm sieve hole at a concentration of 66.7wt%, add water to make the pulp concentration 35wt%, add 1.5g sulfuric acid and 0.1g lead nitrate and stir evenly , the PH value of the ore pulp measured by the PH test paper is 5.5, add 0.25g of medicament MA-1 and 0.1g of butyl xanthate mixed collector, and then add 0.11g of No. 2 oil and stir evenly before flotation. After the "two-sweep" flotation, the antimony concentrate with a grade of 47.06%, a recovery rate of 97.0% and a lead content of 0.091% was obtained, and the grade of antimony in the tailings was 0.18%.

Embodiment 2

[0024] Take 1000g of antimony stibnite ore containing 3.6wt% antimony, and grind it to 77% to pass through a 0.074mm sieve hole at a concentration of 70wt%, add water to make the slurry concentration 40wt%, add 1.5g sulfuric acid and 0.1g lead nitrate and stir evenly, The PH value of the pulp measured by the PH test paper is 5, add 0.1g of the agent MA-1 and 0.1g of butyl xanthate as a mixed collector, and then add 0.11g of No. 2 oil and stir evenly before flotation. After "sweeping" flotation, the antimony concentrate with a grade of 47.06%, a recovery rate of 96.70% and a lead content of 0.090% was obtained, and the grade of antimony in the tailings was 0.17%.

Embodiment 3

[0026] Put 78.36t of antimony-containing 2.2wt% antimony stibnite through 2130 ball mill, in the case of grinding concentration 74wt%, 1.5m diameter classifier overflow concentration 32wt%, overflow particle size -0.074mm is 72%, in a mixing tank Add 39.18kg of sulfuric acid and 7.54kg of lead nitrate to stir, and the pH test paper shows that the pH value is 6.0. Add 11.75kg and 7.84kg of MA-1 and butyl xanthate respectively in the secondary mixing tank, and add 8.62kg of No. 2 oil. After the flotation of "coarse, two cleaning and two fine", the antimony concentrate with a grade of 45.8%, a recovery rate of 93.6% and a lead content of 0.099% was obtained, and the grade of antimony in the tailings was 0.21%.

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Abstract

The invention discloses a stibnite flotation technology. The stibnite flotation technology comprises the steps of dispersing stibnite raw ores into water through ball milling to obtain pulp; adjusting the pH of the pump to be faintly acid, then adding a composite collecting agent consisting of MA-1 and butyl xanthate to perform flotation collection so as to obtain stibnite. In the process, the selective collecting capacity of antimony in the stibnite is greatly improved by utilizing the composite collecting agent, and the antimony recovery rate is improved. In addition, by means of the process, the using amount of lead nitrate can be decreased, the lead content in floated antimony concentrate can be reduced, and the follow-up floated antimony concentrate smelting cost can be reduced.

Description

technical field [0001] The invention relates to a flotation process of stibnite, which belongs to the field of ore dressing flotation. Background technique [0002] Mineral dressing flotation is to use various agents to adjust the physical and chemical properties of the surface of the selected mineral particles, so as to expand the affinity difference between useful minerals and gangue minerals and flotation medium, so that they can be better sorted in the flotation medium and achieve improved The purpose of recovery rate of useful components. The commonly used flotation medium is water, and the commonly used flotation reagents are divided into three categories: collectors, foaming agents and regulators. [0003] When using water as the flotation medium to flotation metal minerals, it is necessary to make the surface of the useful metal mineral particles adsorb with the collector as much as possible to make the surface of the useful metal mineral particles hydrophobic, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03B1/04B03D1/00B03D101/02B03D103/04
Inventor 陈水武周向军刘华民
Owner HUNAN ANHUA ZHAZIXI MINING
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