Method for preparing stibnite inhibitor

A technology of stibnite and inhibitor, which is applied in the field of preparation of an inhibitor, can solve problems such as high cost, impact on health and environmental protection, and no breakthrough progress has been made, and achieve simple medicament, lower antimony content, and less dosage Effect

Inactive Publication Date: 2015-12-09
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Flotation separation of stibnite and its associated gold-bearing pyrite is a worldwide problem. Due to the limitation of smelting technology, pyrometallurgy is generally used at home and abroad. When smelting gold-antimony concentrate with high gold-bearing pyrite, A large amount of alkali slag is produced, which has a huge impact on health and environmental protection
In addition, the industrial application of antimony hydrometallurgy technology is still immature in China, and the cost is relatively high
Since the flotation separation of antimony and gold-bearing pyrite is a worldwide problem, although domestic and foreign ore dressing scholars have done some research on it, no breakthrough has been made.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] An example of the preparation method of the antimonite inhibitor of the present invention includes the following steps:

[0019] First, the mass ratio of zinc sulfate: sodium carbonate: sodium hydroxide: water = 1:1:1:1 is mixed to obtain solution 1, and then starch is added to solution 1 according to mass ratio = 1:6, and stirred until it is dissolved. 2; Then add sodium sulfite and tannin extract into solution 2 at a mass ratio=1:0.1:2, control the temperature of solution 2 to 70°C, and keep the stirring reaction for 3.5 hours to obtain solution 3. The solution 3 is suction filtered to obtain a viscous substance, and finally The viscous substance is dried at 60° C. to obtain the antimonite inhibitor.

Embodiment 2

[0021] Another example of the preparation method of the antimonite inhibitor of the present invention includes the following steps:

[0022] First, the mass ratio of zinc sulfate: sodium carbonate: sodium hydroxide: water 2:2.5:3:4 is mixed to obtain solution 1, and then starch is added to solution 1 according to mass ratio = 0.6:7, and stirred until dissolved to obtain solution 2. ; Then add sodium sulfite and tannin extract into solution 2 at a mass ratio=2:0.2:5, control the temperature of solution 2 to 75 ℃, and keep the stirring reaction for 4 hours to obtain solution 3. The solution 3 is suction filtered to obtain a viscous substance, and finally the viscosity The thick substance is dried at 65° C. to obtain the antimonite inhibitor.

Embodiment 3

[0024] This example is an application example of the antimonite inhibitor prepared in Example 1 in the flotation separation of chrysopyrite and antimonite.

[0025] 1. Mineral raw materials:

[0026] The mineral raw materials used are stibnite and golden iron ore mixed concentrate, in which the antimony content is 25.62%, the arsenic content is 3.98%, the sulfur content is 20.50%, and the gold content is 45.40g / t. The phase analysis shows that the mixing The concentrate mainly exists in the form of stibnite and aureite, and a small amount of quartz, mica and silicocalcium minerals.

[0027] 2. Reagent system and operating conditions: adjust the pH of the pulp to 9.5-10 with sodium hydroxide, test with the dosage of 3000g / t inhibitor, 100g / t copper sulfate activator, and 100g / t collector butyl xanthate. The results show that the above reagent conditions can effectively separate the flotation of chrysopyrite and stibnite. Under the conditions of 25.62% antimony content and 45.40g / t go...

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PUM

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Abstract

The invention provides a method for preparing a stibnite inhibitor. The method comprises the following steps: (1) mixing zinc sulfate, sodium carbonate, sodium hydroxide and water in a mass ratio of (1-2):(1-2.5):(1-3):(1-4) to obtain a solution 1; (2) adding starch into the solution 1 in a mass ratio of (0.5-0.6):(3-7), stirring until the starch is dissolved to obtain a solution 2; (3) adding sodium sulfite and tanning extract into the solution 2 in a mass ratio of (1-2):(0.1-0.2):(2-5), controlling the temperature of the solution 2 to be 70-75 DEG C, stirring to react, and keeping for 3.5-4 hours to obtain a solution 3; and (4) sucking and filtering the solution 3 to obtain paste, and drying the paste at 60-55 DEG C to obtain the stibnite inhibitor. The inhibitor prepared by adopting the method can be used for inhibiting stibnite, and enables flotation separation of gold-containing pyrite and stibnite to obtain gold concentrate and antimony concentrate.

Description

1. Technical Field [0001] The invention relates to a preparation method of antimonite inhibitor, in particular to a mixed antimony gold concentrate containing aureite and antimonite coexisting, it is necessary to suppress the antimony mineral during flotation separation of the mixed antimony gold concentrate A method for preparing inhibitors. 2. Background technology [0002] The flotation separation of antimonite and its associated golden iron ore is a worldwide problem. Due to the limitation of smelting technology, pyrometallurgical smelting methods are widely used at home and abroad. A large amount of alkali residue is produced, which has a huge impact on health and environmental protection. In addition, the industrial application of hydrometallurgical antimony technology is not yet mature in China, and the cost is relatively high. Since the flotation separation of antimony and golden iron ore is currently a worldwide problem, although domestic and foreign beneficiation scho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/018B03D101/06B03D103/02
Inventor 魏宗武
Owner GUANGXI UNIV
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