A kind of silver-guided recovery beneficiation method in bismuth-sulfur separation process

A technology of separation process and beneficiation method, applied in the direction of solid separation, flotation, grain processing, etc., can solve the problem that there are no reports and application examples of silver-oriented recovery, no consideration of silver direction and recovery, and no consideration of silver recovery conditions and other issues, to achieve the effect of improving the comprehensive utilization rate, significant economic benefits, and good results

Active Publication Date: 2022-07-29
UNIV OF SCI & TECH LIAONING
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  • Abstract
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AI Technical Summary

Problems solved by technology

Zhu Jun et al. ("Recovery of Bismuth from a Sulfur Concentrate and Comprehensive Utilization of Resources", "Comprehensive Utilization of Mineral Resources", June 2019, Issue 3) used a combined magnetic separation-flotation process for a foreign bismuth-containing sulfur concentrate Separation of bismuth-sulfur minerals, the separation effect of bismuth-sulfur is good, but the recovery of silver is not considered; Sun Chuanyao et al. "October 2004, Volume 19, No. 5) For the polymetallic sulfide ore containing molybdenum and bismuth in Shizhuyuan, first use molybdenum and bismuth to float, then use butyl xanthate to carry out mixed flotation of bismuth and sulfur, and finally use lime as Inhibitors have realized the separation of bismuth-sulfur mixed concentrate, but due to the low grade of silver in the raw ore, the trend and recovery of silver in the process of bismuth-sulfur separation have not been considered
[0006] In summary, the current bismuth-sulfur separation research still focuses on the recovery of bismuth-sulfur main metal, and there are no relevant reports and application examples on silver-guided recovery.

Method used

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  • A kind of silver-guided recovery beneficiation method in bismuth-sulfur separation process

Examples

Experimental program
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Effect test

Embodiment 1

[0049] In the present embodiment, the raw ore is taken from a certain silver-bismuth-containing polymetallic sulfide ore in Yunnan, and the mass percentage of bismuth in the raw ore is 0.36%, the mass percentage of silver is 73 g / t, and the mass percentage of sulfur is 8.23%.

[0050] In the present embodiment, the process flow diagram of silver-oriented recovery in the bismuth-sulfur separation process is as follows: figure 1 As shown, the beneficiation steps are as follows:

[0051] 1) The raw ore is ground to -0.074mm for 70%;

[0052] 2) Carry out bismuth-sulfur mixed flotation through step 1) once grinding the ore pulp, and calculate by 1 ton of raw ore, the consumption of butyl xanthate during the bismuth-sulfur mixed flotation is 150 grams, and the consumption of pine oil is 80 grams, to obtain Bismuth-sulfur mixed concentrate and bismuth-sulfur flotation tailings;

[0053] 3) carrying out the secondary grinding of step 2) gained bismuth-sulfur mixed concentrate to -0...

Embodiment 2

[0058] In the present embodiment, the raw ore is taken from a certain silver-containing bismuth polymetallic sulfide ore in Hunan, and the mass percentage of bismuth in the raw ore is 0.45%, the mass percentage of silver is 120 g / t, and the mass percentage of sulfur is 11.52%.

[0059] In the present embodiment, the process flow diagram of silver-oriented recovery in the bismuth-sulfur separation process is as follows: figure 1 As shown, the beneficiation steps are as follows:

[0060] 1) The raw ore is ground to -0.074mm for 85%;

[0061] 2) Carry out bismuth-sulfur mixed flotation through step 1) once grinding the ore pulp, and calculate by 1 ton of raw ore, the consumption of butyl xanthate during bismuth-sulfur-silver mixed flotation is 200 grams, and the consumption of pine oil is 80 grams , to obtain bismuth-sulfur mixed concentrate and bismuth-sulfur flotation tailings;

[0062] 3) carrying out the secondary grinding of step 2) gained bismuth-sulfur mixed concentrate ...

Embodiment 3

[0067] In the present embodiment, the raw ore is taken from a polymetallic sulfide ore containing silver and bismuth in Guangdong, and the mass percentage of bismuth in the raw ore is 0.25%, the mass percentage of silver is 65g / t, and the mass percentage of sulfur is 7.52%.

[0068] In the present embodiment, the process flow diagram of silver-oriented recovery in the bismuth-sulfur separation process is as follows: figure 1 As shown, the beneficiation steps are as follows:

[0069] 1) The raw ore is ground to -0.074mm for 75%;

[0070] 2) carry out bismuth-sulfur mixed flotation through step 1) once grinding the ore pulp, and calculate by 1 ton of raw ore, the consumption of butyl xanthate during the mixed flotation of bismuth-sulfur-silver is 120 grams, and the consumption of pine oil is 60 grams, Obtain bismuth-sulfur mixed concentrate and bismuth-sulfur flotation tailings;

[0071] 3) carrying out the secondary grinding of step 2) gained bismuth-sulfur mixed concentrate ...

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Abstract

The invention relates to a silver-directed recovery and beneficiation method in a bismuth-sulfur separation process. The directional recovery of silver is realized under the premise of sulfur main metal recovery, not only the separation effect of bismuth and sulfur is good, but also the recovery rate of silver in independent concentrate and bismuth concentrate is greatly improved, the comprehensive utilization rate of silver resources is greatly improved, and the economic benefit is remarkable. .

Description

technical field [0001] The invention relates to the technical field of beneficiation, in particular to a silver-directed recovery and beneficiation method in a bismuth-sulfur separation process. Background technique [0002] Bismuth is a rare dispersed metal element. The bismuth minerals used in industry mainly include bismuthite, bismuthite, bismuth, tellurium bismuth and natural bismuth. my country is the country with the largest reserves of bismuth in the world, and bismuth resources are mostly produced by associated metals. In addition to bismuth minerals, these ores are often accompanied by a large amount of silver minerals, which are an important source of silver resource reserves in my country. When sorting this type of ores, in addition to obtaining bismuth concentrate and sulphur concentrate respectively, some of the associated silver components in the ore can also be selected into separate concentrate products, and some are enriched in the above-mentioned main ele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/018B02C21/00B03D101/02B03D101/04B03D101/00B03D103/02
CPCB03D1/018B02C21/00B03D2201/02B03D2201/04B03D2201/005B03D2201/007B03D2203/025
Inventor 宋宝旭陶东平赵伟王晓东
Owner UNIV OF SCI & TECH LIAONING
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