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A collector for highly efficient removal of carbonate minerals in collophosite

A technology for carbonate minerals and phosphate rock, applied in solid separation, flotation and other directions, can solve the problems of large equipment and space, poor dispersion, slow flotation speed, etc., and achieve low beneficiation cost and significant economic benefits. , the effect of shortening the flotation time

Active Publication Date: 2016-03-16
YUNNAN PHOSPHATE CHEM GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, flotation requires a large amount of fatty acid raw materials. Due to the relatively low price of fatty acids, the dispersibility and selectivity of fatty acids are poor, resulting in long flotation time and slow flotation speed, resulting in large equipment and space required for flotation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Mix the fatty acid soap obtained from fatty acid saponification with diethyl phthalate, wherein diethyl phthalate accounts for 10% of the total mass of the mixture, and the fatty acid soap accounts for 90% of the total mass of the mixture, at a constant temperature of 40~50°C Emulsify for 1-1.5 hours to obtain a collector that efficiently removes carbonate in collophanite. When raw ore P 2 o 5 Content of 21%, MgO content of 5% collephosite, adding 600 g / t raw ore collector for reverse flotation operation, the MgO content in the concentrate is 0.7% in 4.5 minutes of flotation time, and the MgO removal rate reaches 90% %, compared with the flotation of fatty acid soap without adding diethyl phthalate (flotation time is 7 minutes, △ε / △t=0.264), the flotation rate of carbonate minerals was shortened by 36%. △ε / △t=0.33, an increase of 20%.

Embodiment 2

[0020] Mix the fatty acid soap obtained from fatty acid saponification with diethyl phthalate, wherein diethyl phthalate accounts for 15% of the total mass of the mixture, and the fatty acid soap accounts for 85% of the total mass of the mixture, at a constant temperature of 40~50°C Emulsify for 1-1.5 hours to obtain a collector that efficiently removes carbonate in collophanite. When raw ore P 2 o 5 content of 21%, MgO content of 5%, adding 600 g / t of raw ore collector for reverse flotation operation, the MgO content in the concentrate is 0.7% in 3 minutes of flotation time, and the MgO removal rate reaches 91% %, the flotation time was shortened by 57% compared with the fatty acid soap flotation without adding diethyl phthalate (flotation time was 7 minutes, △ε / △t=0.382), and the carbonate mineral The flotation rate △ε / △t=0.51, increased by 25%.

Embodiment 3

[0022] Mix the fatty acid soap obtained from fatty acid saponification with diethyl phthalate, wherein diethyl phthalate accounts for 20% of the total mass of the mixture, and the fatty acid soap accounts for 80% of the total mass of the mixture, at a constant temperature of 40~50°C Under emulsification for 1 to 1.5 hours, a collector for highly efficient removal of carbonate in colphosphane was obtained. When raw ore P 2 o 5 content of 21%, MgO content of 5%, adding 600 g / t of raw ore to the collector for reverse flotation operation, the MgO content in the concentrate is 0.7% in 2 minutes of flotation time, and the MgO removal rate reaches 92 %, the flotation time was shortened by 71% compared with the fatty acid soap flotation without adding diethyl phthalate (flotation time was 7 minutes, △ε / △t=0.57), and the carbonate mineral The flotation rate △ε / △t=0.77, increased by 26%.

[0023] The invention can greatly increase the flotation speed of collophosite reverse flotation...

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PUM

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Abstract

The invention relates to a collector for efficiently removing carbonate minerals in collophosite. The process of the present invention is as follows: (1) saponification reaction of oleic acid with a carbon chain of 18 and fatty acid with a linoleic acid content greater than 65%; (2) adding 5 to 25 % of diethyl phthalate to emulsify to obtain a collector that efficiently removes carbonate in collophanite; (3) use the collector to collect carbonate in reverse flotation of collophanite Minerals, when the same amount of collector is added and the MgO content in the concentrate is similar, the flotation time is shortened compared with the fatty acid soap flotation without adding diethyl phthalate (flotation time 7 minutes) The flotation rate of carbonate minerals increased by more than 36%, and the flotation rate of carbonate minerals increased by more than 20%.

Description

technical field [0001] The invention relates to a collector for efficiently removing carbonate minerals in collophosite. 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. However, flotation requires a large amount of fatty acid raw materials. Due to the relatively low price of fatty acids, the dispersibility and selectivity of fatty acids are poor, resulting in long flotation time and slow flotation speed, resulting in large equipment and space required for flotation. Therefore, it is necessary to study collectors that can remove carbonate minerals efficiently. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/008B03D101/02
Inventor 李耀基杨稳权方世祥李小双彭桦何海涛
Owner YUNNAN PHOSPHATE CHEM GROUP CORP