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A kind of bismuth arsenic beneficiation separation method

A separation method and technology of ore counting, applied in solid separation, flotation and other directions, can solve problems such as no technical measures

Active Publication Date: 2019-11-29
广东省资源综合利用研究所 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In view of the fact that the separation of bismuth and arsenic is very rare, there is no corresponding technical measure

Method used

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  • A kind of bismuth arsenic beneficiation separation method
  • A kind of bismuth arsenic beneficiation separation method
  • A kind of bismuth arsenic beneficiation separation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The ore feeding of this embodiment is a rough concentrate of bismuth and arsenic in a place in Yunnan, China, and the process steps are as attached figure 1 shown, including the following steps:

[0034] S1. Grinding the bismuth arsenic rough concentrate to -0.074mm accounts for 84%;

[0035] S2. Drug removal: add water to the product after grinding to adjust the pulp concentration to 55%, heat it to 90°C, and keep it warm for 1.5 hours to obtain the rough concentrate after drug removal;

[0036] S3. Add water to the coarse concentrate after drug removal to adjust the pulp concentration to 33%, and feed it into flotation to obtain low-arsenic bismuth concentrate and flotation tailings. As shown below, the drug addition conditions are shown in Table 1, and the obtained indexes are shown in Table 2.

[0037] S31. Rough selection: Add arsenic inhibitor and stir according to the feed per ton; then add bismuth activator and stir; then add bismuth collector and stir; finall...

Embodiment 2

[0042] The ore feeding of this embodiment is a rough concentrate of bismuth and arsenic in a certain place in Guangxi, China, and the process steps are as attached figure 1 shown, including the following steps:

[0043] S1. Grinding the bismuth arsenic rough concentrate to -0.074mm accounts for 81%;

[0044] S2. Add water to the product after grinding until the pulp concentration is 45%. Add 5000g / t of sodium sulfide, stir for 5 minutes, add 2000g / t of lime, stir for 3 minutes, add water to adjust the pulp to the pulp The concentration is 10%, concentrated and dehydrated to a pulp concentration of 60%, adding water again to adjust the pulp concentration to 10%, and concentrating to a pulp concentration of 60%, to obtain a rough concentrate after de-drugs;

[0045] S3. Add water to the coarse concentrate after drug removal to adjust the pulp concentration to 26%, and feed it into flotation to obtain low-arsenic bismuth concentrate and flotation tailings. The types of chemicals...

Embodiment 3

[0051] In this embodiment, the ore feed is a rough concentrate of bismuth and arsenic in a certain place in Inner Mongolia, China, and the process steps are as attached figure 1 shown, including the following steps:

[0052] S1. Grinding the bismuth arsenic rough concentrate to -0.074mm accounts for 89%;

[0053] S2. Add water to the product after grinding to adjust the pulp concentration to 50%, and add 5000g / t of activated carbon per ton of ore feed, and stir for 5 minutes to obtain the rough concentrate after drug removal;

[0054] S3. Add water to the coarse concentrate after drug removal to adjust the pulp concentration to 31%, and feed it into flotation to obtain low-arsenic bismuth concentrate and flotation tailings. The types of chemicals added in each roughing, sweeping and beneficiation As shown below, the drug addition conditions are shown in Table 1, and the obtained indexes are shown in Table 2.

[0055] S31. Rough selection: Add arsenic inhibitor and stir accor...

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Abstract

The invention discloses a mineral separation method for bismuth and arsenic. The mineral separation method for bismuth and arsenic comprises the following steps: with regard to the rough concentratesof bismuth and arsenic, concentrate regrinding is carried out at first, then reagent removal is carried out on the grinded mineral aggregates, then an arsenic inhibitor, a bismuth activator, a bismuthcollector and a foamer are sequentially added for slurry mixing, the optimized design is carried out on the arsenic inhibitor, and low-arsenic-bismuth concentrates are obtained through flotation. Theinvention provides a separation method for bismuth and arsenic, which is technically feasible, and economic and reasonable; and compared with the existing separation technology for bismuth and arsenic, the mineral separation method for bismuth and arsenic has the characteristics of being remarkable in separation effect for bismuth and arsenic, economic, environment-friendly, and easy to implement, and is especially applicable to high-arsenic-content rough concentrates of bismuth.

Description

technical field [0001] The present invention relates to the technical field of mineral processing, in particular to a bismuth-arsenic mineral separation method, more specifically, to a bismuth-arsenic mineral separation method for rough concentrates with bismuth mainly composed of bismuthite and natural bismuth, and high in harmful element arsenic content . Background technique [0002] Bismuth has unique properties. As an important metallurgical additive, a fusion alloy and a raw material for the production of drugs and chemicals, it is widely used in the industrial and medical fields. In nature, bismuth mostly exists in the form of compounds such as free metals, oxides, sulfides and sulfur-containing salt minerals. Bismuth is often associated with tungsten, molybdenum, copper, iron, arsenic and other elements, and there are very few single bismuth deposits. Therefore, there are few researches on beneficiation of bismuth, and the separation of bismuth in production is usua...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B9/00B03D1/018B03D1/002B03D1/016B03D101/02B03D101/04B03D101/06B03D103/04
CPCB03B9/00B03D1/002B03D1/016B03D1/018B03D2201/02B03D2201/04B03D2201/06B03D2203/04
Inventor 邹坚坚冉金城袁经中叶小璐宋宝旭陈明波汪泰姚艳清王成行李沛伦陈洪兵邱显扬汤玉和胡真李汉文付华杨权志何凤文
Owner 广东省资源综合利用研究所
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