Bismuth beneficiation, a beneficiation method instead of sodium cyanide

A beneficiation method and sodium cyanide technology, applied in the field of bismuth beneficiation, can solve problems such as complicated operation process, great safety hazard, waste of resources, etc., and achieve the effect of improving the beneficiation index, improving safety and saving power consumption

Active Publication Date: 2021-08-03
HUNAN SHIZHUYUAN NON FERROUS METAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a kind of beneficiation method of bismuth beneficiation instead of sodium cyanide, which can effectively solve the problem that sodium cyanide has strong toxicity, complex operation process, great potential safety hazards, and the required cyanide The amount of sodium chloride is large, wasting resources, increasing costs and other issues

Method used

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  • Bismuth beneficiation, a beneficiation method instead of sodium cyanide
  • Bismuth beneficiation, a beneficiation method instead of sodium cyanide

Examples

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Effect test

Embodiment 1

[0031] Embodiment 1: as figure 1 and figure 2 Shown, bismuth selects a kind of beneficiation method that replaces sodium cyanide, comprises the following steps:

[0032] S1. Flotation: A new branch series flow flotation process is adopted to divert the foam products of bismuth desiliconization and sweeping to the thick mud bucket of bismuth desulfurization for drug removal, and float together with the desulfurization ore;

[0033] S2, shunting: shunting the foam products swept in the later stage of flotation, so as to carry out bismuth desulfurization operation;

[0034] S3. Measurement: measure the selected grade of the diverted foam;

[0035] S4. Stirring: After the measurement, the foam is introduced into the stirring device and stirred by a high-speed stirrer;

[0036] S5, drug removal: add bleaching powder and ethyl disulfide to the stirred pulp;

[0037] S6. Tailings treatment: the flotation tailings are adjusted to be neutral, and the waste water separated from the...

Embodiment 2

[0052]Embodiment 2: a kind of beneficiation method of bismuth beneficiation instead of sodium cyanide comprises the following steps:

[0053] S1. Flotation: A new branch series flow flotation process is adopted to divert the foam products of bismuth desiliconization and sweeping to the thick mud bucket of bismuth desulfurization for drug removal, and float together with the desulfurization ore;

[0054] S2, shunting: shunting the foam products swept in the later stage of flotation, so as to carry out bismuth desulfurization operation;

[0055] S3. Measurement: measure the selected grade of the diverted foam;

[0056] S4. Stirring: After the measurement, the foam is introduced into the stirring device and stirred by a high-speed stirrer;

[0057] S5, drug removal: add activated carbon and ethyl disulfide to the stirred pulp;

[0058] S6. Tailings treatment: the flotation tailings are adjusted to be neutral, and the waste water separated from the tailings is passed into lime f...

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Abstract

The invention discloses a beneficiation method of bismuth beneficiation instead of sodium cyanide, comprising the following steps: S1, flotation: adopting a new branch series flow flotation process, and combining the foam product of bismuth desiliconization with the original desulfurized ore Flotation; S2, diversion: divert the scavenging foam in the later stage of flotation; S3, measurement: measure the selected grade of the diverted foam; S4, stirring: introduce the pulp foam into the stirring device and stir it through a high-speed stirrer Operation; S5, drug removal: add bleaching powder and ethylsulfide nitrogen to the treated pulp; S6, tailings treatment: adjust the tailings after flotation to neutral through clear water, and pass the waste water into lime for neutralization And, the present invention is scientific and reasonable, safe and convenient to use, by adding bleaching powder and ethionyl nitrogen in the process of removing the drug, it replaces the sodium cyanide that the desiliconization operation relies on in the bismuth selection operation, reduces the consumption of flotation agents, and improves the separation index , Reduce the potential safety hazard caused by the leakage of sodium cyanide.

Description

technical field [0001] The invention relates to the technical field of bismuth beneficiation, in particular to a beneficiation method of bismuth beneficiation instead of sodium cyanide. Background technique [0002] At present, the company's bismuth beneficiation operations are mainly desiliconization operations and rely on sodium cyanide, while desulphurization operations do not need to be added in most cases. medicine, there will always be a small part of bismuth with poor floatability, which makes the separation of bismuth and sulfur difficult. The separation is relatively good, so the foam scraped out in the early stage is of high grade and low in sulfur content. Part of it is distributed into the final concentrate, so sodium cyanide suppression is needed. The longer the flotation time, the more sodium cyanide needs to be added. Just like the phenomenon in production, the smaller the ore flow rate, the more sodium cyanide needs to be added. The more, because sodium cya...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/018B03D1/02B03D1/08B03D103/02
CPCB03D1/018B03D1/02B03D1/08B03D2203/02
Inventor 魏大为谢加文
Owner HUNAN SHIZHUYUAN NON FERROUS METAL
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