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Flotation activating agent for fine-grain cassiterite and preparing method of flotation activating agent

A technology of fine-grained cassiterite and activator, used in flotation, solid separation, etc., to achieve the effect of wide application range, increase economic benefit, and improve activation rate

Inactive Publication Date: 2016-07-20
YUNNAN YUANKUANG TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But no matter which method, there is no activator that can effectively improve the hydrophobicity of cassiterite, thereby reducing the amount of collector and making the flotation process more efficient

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method of a flotation activator of fine-grained cassiterite, comprising the following steps,

[0027] (1) Dissolve an appropriate amount of ammonia in ethanol to obtain solution A, and the concentration of the solution is calculated as 0.8% by mass percentage;

[0028] (2) Pb(NO 3 ) 2 , Pb(CH 3 COO) 2 10H 2 O, Pb(CH 3 COO) 2 Dissolved in ethanol to obtain solution B, the concentration of the solution is calculated as 0.8% by mass percentage;

[0029] (3) NaOH and NaOH are mixed according to the appropriate metering ratio of the chemical reaction 2 CO 3 Dissolved in chloroform to obtain solution C, the concentration of the solution was 8% by mass percentage;

[0030] (4) Slowly add solution A to solution B under stirring, react at room temperature for 3 minutes at a stirring speed of 140 r / min, then add solution C, continue to react for 5 minutes at room temperature, and finally add ethanol solution, the reaction forms Solid-liquid mixed crude pro...

Embodiment 2

[0036] A preparation method of a flotation activator of fine-grained cassiterite, comprising the following steps,

[0037] (1) Dissolve an appropriate amount of ammonia in ethanol to obtain solution A, and the concentration of the solution is calculated as 5% by mass percentage;

[0038] (2) Pb(NO 3 ) 2 , Pb(CH 3 COO) 2 10H 2 O, Pb(CH 3 COO) 2 Dissolved in methanol to obtain solution B, the concentration of the solution is calculated as 25% by mass percentage;

[0039] (3) NaOH and NaOH are mixed according to the appropriate metering ratio of the chemical reaction 2 CO 3 Dissolved in water to obtain solution C, the concentration of the solution is 20% by mass percentage;

[0040] (4) Slowly add solution A to solution B under stirring, and react at room temperature for 10 minutes at a stirring speed of 150 r / min, then add solution C, continue to react for 15 minutes at room temperature, and finally add water to form a solid Liquid mixed crude product;

[0041] (5) Fi...

Embodiment 3

[0046] A preparation method of a flotation activator of fine-grained cassiterite, comprising the following steps,

[0047] (1) Dissolve an appropriate amount of ammonia in ethanol to obtain solution A, and the concentration of the solution is calculated as 15% by mass percentage;

[0048] (2) Pb(NO 3 )2 , Pb(CH 3 COO) 2 10H 2 O, Pb(CH 3 COO) 2 Dissolve in water to obtain solution B, and the concentration of the solution is calculated as 40% by mass percentage;

[0049] (3) NaOH and NaOH are mixed according to the appropriate metering ratio of the chemical reaction 2 CO 3 Dissolved in chloroform to obtain solution C, the concentration of the solution is 30% by mass percentage;

[0050] (4) Slowly add solution A to solution B under stirring, react at room temperature for 20 minutes at a stirring speed of 180 r / min, then add solution C, continue to react for 20 minutes at room temperature, and finally add water to form a solid Liquid mixed crude product;

[0051] (5) Fi...

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PUM

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Abstract

The invention discloses a flotation activating agent for fine-grain cassiterite and a preparing method of the flotation activating agent. The flotation activating agent is a coordination compound of lead and ammonia, and the molecular formula of the coordination compound is [Pb(NH3)x]2+, wherein X in the molecular formula ranges from one to eight. The preparing method of the flotation activating agent mainly comprises the steps that, lead nitrate, lead acetate hydrate and lead acetate are dissolved in ethyl alcohol or methyl alcohol or water through ammonium hydroxide dissolving, then, sodium hydroxide and sodium carbonate are added, mixing is conducted for the reaction, and the flotation activating agent is obtained through drying. The flotation activating agent is used for activating the fine-grain cassiterite in ore, the surface hydrophobicity of the fine-grain cassiterite is improved, the proportion of lead and ammonia in the flotation coordination compound of the cassiterite is increased, adjustment can be conducted according to the specific beneficiation raw material condition, flexibility and changeability are achieved, adaptability is high, and the application range is wide. The flotation tin concentrate grade and recycling rate of the fine-grain cassiterite are increased, economic benefits are increased, raw materials are cheap and easy to obtain, and the production cost is low.

Description

technical field [0001] The invention relates to the technical field of ore dressing engineering and comprehensive utilization of rare and precious metals, in particular to a high-efficiency activator for fine-grained cassiterite flotation, a preparation method and application thereof. Background technique [0002] my country's tin metal reserves account for 28.85% of the world's total reserves, ranking first in the world. At the same time, my country is also a major tin producer. In 2014, the tin metal output reached 3.749 million tons, ranking first in the world, and the export volume reached 275,600 tons. With the development of the national economy, the demand for tin metal increases, and there is an urgent need to develop and utilize complex and difficult-to-select resources. Domestic tin mines such as Guangxi Dayunan Tin Industry, Wenshan Dulong tin-containing polymetallic mines, etc., therefore, Adopting proper cassiterite beneficiation process is of great significance...

Claims

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Application Information

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IPC IPC(8): B03D1/002
CPCB03D1/002
Inventor 童雄谢贤
Owner YUNNAN YUANKUANG TECH DEV CO LTD
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