Silver guide recovery beneficiation method in table flotation sulphide ore bulk concentrate separation process

A technology of mixing concentrates and floating sulfide ores, which is applied in flotation, solid separation, etc., can solve the problems of insufficient total silver recovery rate, no silver-oriented recovery reports and application examples, etc., to improve comprehensive utilization rate, economical Significant benefit and good separation effect

Inactive Publication Date: 2020-06-02
UNIV OF SCI & TECH LIAONING
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Zou Jianjian et al. aimed at the mixed concentrate of Taiwan floating sulfide ore for a tungsten-polymetallic co-associated mine in northern Guangdong, using the process of heating and drug removal-molybdenum priority flotation-bismuth-silver gravity separation-copper-silver flotation to achieve copper-molybdenum flotation. Bismuth and sulfur are separated from each other, but because Chun adopts a gravity separation process to recover bismuth and silver, the total recovery rate of silver is less than 70% ("Study on the comprehensive utilization of a very low-grade associated rare metal mineral resource in northern Guangdong", "Mining and Metallurgy Engineering", 2019 Year 4)
[0009] To sum up, the research on the separation of mixed concentrates of Taiwan Fu sulfide ore is still mainly based on the recovery of the main metals of copper, molybdenum, bismuth and sulfur, and there are no relevant reports and application examples on silver-oriented recovery.

Method used

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  • Silver guide recovery beneficiation method in table flotation sulphide ore bulk concentrate separation process

Examples

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Effect test

Embodiment 1

[0051] In this embodiment, the raw ore is taken from the mixed concentrate of Taiwan Fu sulfide ore produced by a tin polymetallic sulfide mine in Guangxi. The mass percentage of copper in the mixed concentrate of Tai Fu sulfide ore is 3.41%, and the mass percentage of molybdenum is 0.52%, the mass percentage of bismuth is 1.81%, the mass percentage of sulfur is 19.15%, and the mass content of silver is 350g / t.

[0052] In this embodiment, the silver-directed recovery process in the separation process of Taiwan floating sulfide ore mixed concentrate is as follows:

[0053] S1. Heat the mixed concentrate of Taifu sulfide ore to 85°C, stir for 120 minutes, add water to adjust the slurry to a concentration of 34%, and obtain the slurry;

[0054] S2. The ore pulp after step S1 is heated and demedicated is carried out copper-molybdenum-silver mixed flotation, calculated according to the amount of mixed concentrate of 1 ton of Taiwan floating sulfide ore, the consumption of lime dur...

Embodiment 2

[0060] In this example, the raw ore is taken from the mixed concentrate of Taifu sulfide ore in the production of a tin polymetallic sulfide mine in Yunnan. The mass percentage of copper in the mixed concentrate of Taifu sulfide ore is 4.41%, and the mass percentage of molybdenum is 0.80%, the mass percentage of bismuth is 1.51%, the mass percentage of sulfur is 20.05%, and the mass content of silver is 380g / t.

[0061] In this embodiment, the silver-directed recovery process in the separation process of Taiwan floating sulfide ore mixed concentrate is as follows:

[0062] S1. Heat the mixed concentrate of Taifu sulfide ore to 80°C, stir for 100 minutes, add water to adjust the slurry to a concentration of 35%, and obtain the slurry;

[0063] S2. The ore slurry after step S1 is heated and demedicated is carried out copper-molybdenum-silver mixed flotation, calculated according to the amount of mixed concentrate of 1 ton of Taiwan floating sulfide ore, the consumption of lime d...

Embodiment 3

[0069] In this example, the raw ore is taken from the Taiwan Fu sulfide ore mixed concentrate in the production of a tungsten polymetallic sulfide mine in Guangdong. The mass percentage of copper in the Tai Fu sulfide ore mixed concentrate is 3.21%, and the mass percentage of molybdenum 0.44%, the mass percentage of bismuth is 1.71%, the mass percentage of sulfur is 19.15%, and the mass content of silver is 330g / t.

[0070] In this embodiment, the silver-directed recovery process in the separation process of Taiwan floating sulfide ore mixed concentrate is as follows:

[0071] S1. Heat the mixed concentrate of Taifu sulfide ore to 80°C, stir for 90 minutes, add water to adjust the slurry to a concentration of 33%, and obtain the slurry;

[0072] S2. The ore pulp after step S1 is heated and demedicated is carried out copper-molybdenum-silver mixed flotation, calculated according to the amount of mixed concentrate of 1 ton of Taiwan floating sulfide ore, the consumption of lime ...

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Abstract

The invention relates to a silver guide recovery beneficiation method in a table flotation sulphide ore bulk concentrate separation process. The method comprises the steps of table flotation sulphideore bulk concentrate heating reagent removal, copper-molybdenum-silver bulk flotation, ore grinding, molybdenum flotation and bismuth-silver flotation, and molybdenum concentrate, copper-silver concentrate, bismuth-silver concentrate and sulfur concentrate are obtained finally by optimizing the technological process and adjusting reagents and collecting reagents. The separation effect of copper, molybdenum, bismuth and sulfur is good, the recovery rate of silver in copper concentrate and bismuth concentrate is greatly increased, the comprehensive utilization rate of silver resources of miningenterprises is greatly increased, and economic benefits are remarkable.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to a silver-directed recovery mineral processing method in the process of separating mixed concentrates of floating sulfide ores. Background technique [0002] Tungsten-tin polymetallic co-associated deposits are the main deposit types of tungsten-tin resources in my country. In order to prevent coarse-grained tungsten-tin from being over-grinded to a fine-grained level that is difficult to recover during the grinding process, based on the ore properties of tungsten-tin minerals that have a higher specific gravity than sulfide ore and lower hydrophobicity than sulfide ore, Taiwan flotation method has always been used as an important tungsten The separation method of tin and sulfide ore is widely used in the desulfurization operations of major tungsten and tin mines in northern Guangdong and northwestern Guangxi. [0003] Valuable elements such as copper, molybdenum, bism...

Claims

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Application Information

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IPC IPC(8): B03D1/018B03D101/00B03D101/02B03D101/06B03D103/02
CPCB03D1/018B03D2201/00B03D2201/005B03D2201/007B03D2201/02B03D2201/06B03D2203/02
Inventor 宋宝旭陶东平郭亚龙崔波
Owner UNIV OF SCI & TECH LIAONING
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