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Beneficiation test of yellow tin placer ore

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Beneficiation test of yellow tin placer ore

Yellow tin placer is an important type of tin ore, commonly found in southern China, and has high economic value. However, the beneficiation process of yellow tin placer ore is relatively complex, requiring a series of process flows to obtain high-quality tin concentrate. This article will introduce the specific operating steps of the beneficiation test of yellow tin placer ore, helping readers better understand the beneficiation process of yellow tin placer ore.

1、 Preparation before testing

Before the beneficiation test of yellow tin placer, some preparations need to be made, including sampling, assay, Mineralogy analysis, etc. Firstly, it is necessary to sample the yellow tin placer ore to obtain sufficient ore samples. When sampling, attention should be paid to the representativeness and uniformity of the sample. Secondly, it is necessary to conduct laboratory tests on the sample to determine its chemical composition and physical properties. Finally, Mineralogy analysis is needed to determine the main mineral types and contents in the samples.

2、 Test process

1. Rough selection

The rough separation process of yellow tin placer usually adopts a combination of gravity separation and flotation. Firstly, after processing the ore sample through processes such as coarse crushing, fine crushing, and screening, the ore with a particle size less than 2mm is sent to the gravity separator for gravity separation. During the gravity separation process, the heavy medium beneficiation method is used to divide the ore into two parts: heavy ore and light ore. Then, the heavy ore is fed into a flotation machine for flotation to obtain a preliminary tin concentrate.

2. Successful selection

The tin concentrate obtained after rough selection contains a lot of impurities and requires further intermediate processing. The intermediate separation process usually adopts a combination of flotation and gravity separation. Firstly, after processing the tin concentrate through processes such as coarse crushing, fine crushing, and screening, the ore with a particle size less than 0.5mm is sent to a flotation machine for flotation. During the flotation process, forward and reverse flotation is used to divide the ore into two parts: coarse concentrate and fine tailings. Then, the coarse concentrate is fed into the gravity separator for gravity separation to obtain the intermediate tin concentrate.

3. Selection

The tin concentrate obtained after intermediate selection contains less impurities, but the tin grade is not high enough and further selection treatment is needed. The selection process usually adopts a combination of flotation and gravity separation. Firstly, after processing the tin concentrate through processes such as coarse crushing, fine crushing, and screening, the ore with a particle size less than 0.1mm is sent to a flotation machine for flotation. During the flotation process, forward and reverse flotation is used to divide the ore into two parts: coarse concentrate and fine tailings. Then, the coarse concentrate is fed into the gravity separator for gravity separation to obtain the final tin concentrate.

黄锡砂矿选矿试验 III. Analysis of Test Results

The grade and recovery rate of tin concentrate obtained through the beneficiation test of yellow tin placer can be used to evaluate the beneficiation effect. At the same time, the process parameters during the experiment can also be analyzed to determine the optimal beneficiation process flow and operating conditions.

黄锡砂矿选矿试验 Conclusion

The beneficiation process of yellow tin placer ore is relatively complex, requiring a series of process flows to obtain high-quality tin concentrate. This article introduces the specific operating steps of the beneficiation test of yellow tin placer ore, hoping to be helpful for readers to understand the beneficiation process of yellow tin placer ore.