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Collophanite froth flotation collecting agent and preparation method thereof

A foam flotation and collector technology, applied in flotation, solid separation and other directions, can solve the problems of low phosphorus recovery rate, poor selectivity, poor hard water resistance, etc. good effect

Active Publication Date: 2015-05-13
YUNNAN COPPER IND SUNWARD CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Surfactants include cationic quaternary ammonium salt, tertiary ammonium salt, etc., and anionic surfactants include sodium dodecyl sulfate, sodium dodecylsulfonate, sodium dodecylbenzenesulfonate, and phthalic acid Dimethyl ester, diethyl phthalate, etc.; non-ionic types include op-10, Tween-80, polyether, kerosene, diesel oil, etc.; Tal oil and oxidized paraffin soap mainly have large dosage, poor selectivity, and low temperature resistance Poor performance, poor resistance to hard water
Therefore, the current flotation reagents have poor collection performance, high reagent cost, complicated beneficiation process, and low phosphorus recovery rate.

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] (1) Prepare materials according to the following parts by mass: 0.75 parts of stearic acid, 0.2 parts of oleic acid, and 0.05 parts of citric acid;

[0020] (2) Mix stearic acid and oleic acid in step (1) evenly, add 0.15 parts by mass of sodium hydroxide solution with a concentration of 30wt% after mixing evenly, and carry out saponification reaction at 80-90°C for 30 minutes to obtain saponified product ;

[0021] (3) Add the citric acid in step (1) to the saponified product obtained in step (2) and mix evenly to obtain a mixture;

[0022] (4) Add 0.05 parts by mass of sodium chloride to the mixture obtained in step (3) for salting out, and then dry to obtain a dry basis;

[0023] (5) Add dimethyl phthalate of 5% dry basis mass to the dry basis substance obtained in step (4), and stir to obtain the basic substance;

[0024] (6) Add 2% diesel oil by mass of the basic substance to the basic substance obtained in step (5), and stir evenly to obtain a collophosite foam ...

Embodiment 2

[0027] (1) Prepare materials according to the following parts by mass: 0.6 parts of stearic acid, 0.3 parts of oleic acid, and 0.1 parts of citric acid;

[0028] (2) Mix stearic acid and oleic acid in step (1) evenly, add 0.25 parts by mass of sodium hydroxide solution with a concentration of 40wt% after mixing evenly, and carry out saponification reaction at 90-100°C for 45 minutes to obtain saponified product ;

[0029] (3) Add the citric acid in step (1) to the saponified product obtained in step (2) and mix evenly to obtain a mixture;

[0030] (4) Add 0.15 parts by mass of sodium chloride to the mixture obtained in step (3) for salting out, and then dry to obtain a dry basis;

[0031] (5) Add sodium dodecylsulfonate of 8% dry basis mass to the dry basis substance obtained in step (4), and stir to obtain the basic substance;

[0032] (6) Diesel oil with a mass of 8% of the basic substance is added to the basic substance obtained in step (5), and after stirring evenly, a c...

Embodiment 3

[0035] (1) Prepare materials according to the following parts by mass: 0.3 parts of stearic acid, 0.5 parts of oleic acid, and 0.2 parts of citric acid;

[0036] (2) Mix stearic acid and oleic acid in step (1) evenly, add 0.10 parts by mass of sodium hydroxide solution with a concentration of 45wt% after mixing evenly, and carry out saponification reaction at 100-120°C for 60 minutes to obtain saponified product ;

[0037] (3) Add the citric acid in step (1) to the saponified product obtained in step (2) and mix evenly to obtain a mixture;

[0038] (4) adding 0.2 parts by mass of sodium chloride to the mixture obtained in step (3) for salting out, and then drying to obtain dry matter;

[0039] (5) Add sodium dodecylbenzenesulfonate with 15% dry basis mass to the dry substance obtained in step (4), and stir to obtain the basic substance;

[0040] (6) Diesel oil with a mass of 1% of the basic substance is added to the basic substance obtained in step (5), and after stirring ev...

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Abstract

The invention provides a collophanite froth flotation collecting agent and a preparation method of the collophanite froth flotation collecting agent. The collophanite froth flotation collecting agent comprises, by mass, 0.3-0.75 part of stearic acid, 0.2-0.5 part of oleic acid and 0.05-0.2 part of citric acid. The stearic acid and the oleic acid are uniformly mixed, a sodium hydroxide solution is added for a saponification reaction, the citric acid is added and uniformly mixed, sodium chloride is added for salting out, a surface active agent is added, a primary substance is obtained after uniform stirring is conducted, diesel oil is added and uniformly stirred, and the collophanite froth flotation collecting agent can be obtained. The obtained collophanite froth flotation collecting agent is good in selectivity, high in collecting capacity, high in flotation speed and small in material consumption. Only 1.0 kg-2 kg / t of the collecting agent is consumed for each ton of ore, 20%-40% of the collophanite froth flotation collecting agent is reduced compared with a conventional collecting agent, and 2.5 yuan of agent cost is saved for each ton of raw ore. The collecting agent is used for positive floatation roughing, only three minutes are consumed for flotation, and 4-6 minutes needs to be consumed for the conventional collecting agent.

Description

technical field [0001] The invention relates to a collophosite foam flotation collector and a preparation method thereof, belonging to the technical field of mineral processing. Background technique [0002] Yunnan is an area rich in phosphate rock resources. One of the main uses of phosphate rock is the production of phosphoric acid and high-concentration phosphate fertilizers. With the increasing demand for phosphorus chemical industry, phosphate rock is continuously mined, rich ore is getting less and less, and the grade of raw phosphate rock is declining. The phosphate rock that is mined must be enriched by ore dressing to meet the raw material quality requirements of high-concentration phosphoric acid and phosphate fertilizer industry. [0003] At present, the beneficiation and enrichment technology of phosphate rock is mainly foam flotation. The collectors used in positive flotation are mainly tall oil and oxidized paraffin soap. Add some surfactants and excipients. ...

Claims

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Application Information

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IPC IPC(8): B03D1/008
Inventor 杨兴周桂民赵家荣刘述福赵磊
Owner YUNNAN COPPER IND SUNWARD CHEM
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