Collophanite reverse flotation collecting agent and preparation method thereof

A technology of reverse flotation and collector, applied in flotation, solid separation and other directions, can solve the problems of difficult addition, poor fluidity, low freezing point, etc., to improve yield and recovery, simple synthesis process, easy to popularize Effect

Active Publication Date: 2014-03-26
YUNNAN PHOSPHATE CHEM GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, almost all collophosite flotation uses fatty acids as raw materials. Stearic acid is relatively cheap and has good selectivity. However, due to its low freezing point, it is easy to solidify at room temperature (15~30°C), has poor fluidity, and is difficult to add, etc.

Method used

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  • Collophanite reverse flotation collecting agent and preparation method thereof
  • Collophanite reverse flotation collecting agent and preparation method thereof
  • Collophanite reverse flotation collecting agent and preparation method thereof

Examples

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Effect test

Embodiment 1

[0033] A collophosite reverse flotation collector, (1) 20 grams of stearic acid with a content greater than 90% as the main raw material; (2) 2.2 grams of mixed alcohol as the secondary raw material, mixed with the main raw material, of which the main The raw materials account for 90% of the total mass of the mixture, and the secondary raw materials account for 10% of the total mass of the mixture.

[0034] A preparation method of collophosite reverse flotation collector, which is characterized in that: the mixture is mixed with 10 grams of 30% liquid caustic soda and then reacted in a constant temperature reactor at 110°C for 1 hour to obtain 30°C) reverse flotation collector with good downflow mobility and dispersibility, good collection performance and selectivity.

[0035] When raw ore P 2 o 5 content of 21%, MgO content of 5%, add 400 g / ton of raw ore collector for reverse flotation operation, when the MgO content in the concentrate is 0.7%, and the MgO removal rate r...

Embodiment 2

[0047] A collophosite reverse flotation collector is characterized in that it is mainly due to: (1) 20 grams of stearic acid with a content greater than 90% as the main raw material; (2) 5 grams of mixed alcohol as the secondary raw material, Mix with the main raw materials, where the main raw materials account for 80% of the total mass of the mixture, and the secondary raw materials account for 20% of the total mass of the mixture.

[0048] A preparation method of collophosite reverse flotation collector, which is characterized in that: the mixture is mixed with 10 grams of 30% liquid caustic soda and then reacted in a constant temperature reactor at 110°C for 1 hour to obtain 30°C) reverse flotation collector with good downflow mobility and dispersibility, good collection performance and selectivity.

[0049] When raw ore P 2 o 5 content of 21%, MgO content of 5%, add 400 g / ton of raw ore collector for reverse flotation operation, when the MgO content in the concentrate ...

Embodiment 3

[0051] A collophosite reverse flotation collector is characterized in that it is mainly due to: (1) 20 grams of stearic acid with a content greater than 90% as the main raw material; (2) 8.6 grams of mixed alcohol as the secondary raw material, Mix with the main raw materials, where the main raw materials account for 70% of the total mass of the mixture, and the secondary raw materials account for 30% of the total mass of the mixture.

[0052] A preparation method of collophosite reverse flotation collector, which is characterized in that: the mixture is mixed with 10 grams of 30% liquid caustic soda and then reacted in a constant temperature reactor at 110°C for 1 hour to obtain 30°C) reverse flotation collector with good downflow mobility and dispersibility, good collection performance and selectivity.

[0053] When raw ore P 2 o 5 content of 21%, MgO content of 5%, add 400 g / ton of raw ore collector for reverse flotation operation, when the MgO content in the concentrat...

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Abstract

The invention relates to a collophanite reverse flotation collecting agent and a preparation method of the collophanite reverse flotation collecting agent. According to the preparation method, (1), a main raw material is stearic acid with the content being greater than 90%, wherein the steatic acid accounts for 60-95% of a mixture; (2), mixed alcohol serves as a secondary raw material and accounts for 5-40% of the mixture; (3), the mixture and 30% of caustic soda liquid are mixed and react for one hour in a reaction still with the constant temperature being 110 DEG C, and then the reverse flotation collecting agent is obtained. By means of the collophanite reverse flotation collecting agent and the preparation method of the collophanite reverse flotation collecting agent, the collecting performance and the selectivity of collophanite reverse flotation operation can be improved greatly, and under the condition that the quality of concentrates is close, the yield of concentrates is improved by more than 3.2%, and the recovery rate is improved by more than 4.8%. The liquidity and dispersibility of the collophanite reverse flotation collecting agent are improved greatly under the normal temperature of 15-30 DEG C, and transportation, storage, attenuation, adding and the like are facilitated.

Description

technical field [0001] The invention relates to a collophosite reverse flotation collector and a preparation method thereof. Background technique [0002] With the rapid development of the phosphate fertilizer industry, the mining and consumption of phosphate rock have also increased sharply, and the overall grade of phosphate rock has been declining. More than 90% of the phosphate rock needs to be flotation to obtain the phosphate concentrate for phosphoric acid production. At present, almost all flotation of collophosite uses fatty acids as raw materials. Stearic acid is relatively cheap and has good selectivity. However, due to its low freezing point, it is easy to solidify at room temperature (15-30°C), has poor fluidity, and is difficult to add. Therefore, research is needed to improve its fluidity, so that it is not easy to solidify at room temperature or below room temperature, has good fluidity and dispersion, and can effectively improve the collection performance an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/004B03D101/02
Inventor 李耀基杨稳权方世祥郭永杰彭桦李若兰
Owner YUNNAN PHOSPHATE CHEM GROUP CORP
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