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Floatation separation process for mercury and antimony

A flotation and process technology, applied in flotation, solid separation, etc., can solve the problems of low recovery rate and high mutual content of products, and achieve the effect of small investment in process technology, wide application range, and easy popularization and promotion

Inactive Publication Date: 2005-07-06
SHAANXI GONGTI TECH
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AI Technical Summary

Problems solved by technology

[0003] The present invention will overcome the problems of high mutual content and low recovery rate of separated products existing in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Example 1: The step of adding potassium dichromate to the mixed concentrate to carry out mercury and antimony flotation separation was carried out in three stages, and the total amount of potassium dichromate added was 1600 g / t.

[0017] (1) The first stage is to add and mix the liquid medicine in the mixed concentrate pool. The added liquid medicine is potassium dichromate. The first addition amount is 1000g / t, and at the same time, 300g / t of activated carbon is added. . Compared with only adding potassium dichromate in the previous experiment, the present invention increases the addition step of activated carbon, because the mixed concentrate after flotation has a large amount of flotation reagents, and the foam is sticky during the separation operation. It is not easy to operate and affects the separation index. Adding activated carbon can remove some of the chemicals in the mixed concentrate and improve the separation effect.

[0018] The stirring time was 40 minut...

Embodiment 2

[0024] Example 2: The step of adding potassium dichromate to the mixed concentrate liquid to carry out mercury and antimony flotation separation was carried out in three stages, and the total amount of potassium dichromate added was 3000 g / t.

[0025] (1) The first stage is carried out in the mixed concentrate pool, the first potassium dichromate added is 2000g / t, and 500g / t of activated carbon is added at the same time. Compared with only adding potassium dichromate in the previous experiment, the present invention increases the addition step of activated carbon, because the mixed concentrate after flotation has a large amount of flotation reagents, and the foam is sticky during the separation operation. It is not easy to operate and affects the separation index. Adding activated carbon can remove some of the chemicals in the mixed concentrate and improve the separation effect.

[0026] The stirring time was 25 minutes.

[0027] (2) the second stage is to carry out in the sw...

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Abstract

This invention relates to mill run technique and to mercury and antimony floatation separation process, which is characterized by that the mixture fine mine liquid is added with potassium dichromate and also active carbon with200í½600g / t.

Description

Technical field: [0001] The invention relates to the technical field of beneficiation, in particular to a mercury-antimony flotation separation process. Background technique: [0002] The separation technology of mercury-antimony co- and associated mixed ore is a technical difficulty that has been difficult to solve for many years at home and abroad. The current separation process usually adopts pyro-smelting separation technology, but this technology has large investment and strict technical requirements, which is not conducive to popularization and application. In my country, mercury and antimony flotation separation experiments were carried out in the 1960s and 1980s. The content of this experiment was to add potassium dichromate to the mixed concentrate to carry out mercury and antimony flotation separation. Because the separation was not complete, the experimental results were inconsistent. Ideal: (1) The separated products have high mutual content: mercury products con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/002B03D1/12
Inventor 延勇
Owner SHAANXI GONGTI TECH
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