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Collophanite flotation collecting agent prepared from rubber seed oil and method for preparing same

A technology of rubber seed oil and collector, which is applied in flotation, fatty acid preparation/refining, solid separation, etc. It can solve the problems of high energy consumption, poor low temperature resistance, high production cost, etc., and achieve good selectivity and excellent production process. Simplification and consumption saving effect

Active Publication Date: 2011-10-05
YUNNAN PHOSPHATE CHEM GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the mixed fatty acids contain fatty acids such as palmitic acid, stearic acid, oleic acid, linoleic acid and linolenic acid, the relative content of the components changes greatly, which has a great impact on the performance of the collector. This type of collector The low temperature resistance of the agent is also poor, and it is usually required to heat the pulp, resulting in high production costs and high energy consumption

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Mineral samples from Anning area, Yunnan, grade P 2 O 5 19.26%, MgO 0.09%, SiO 2 39.81%, CaO30.94%, of which SiO 2 The grade is very high and belongs to the typical siliceous collophane. Therefore, the ore can only enrich the phosphate concentrate by desiliconization. The positive flotation collector should be selected from rubber seed oil fatty acids with better selectivity and lower iodine value. Specific examples of fatty acid production are:

[0018] The rubber seed oil is hydrolyzed under medium pressure, frozen to 16°C, emulsified and separated. The composition contains palmitic acid 6.7%, stearic acid 3.7%, oleic acid 37.3%, linoleic acid 33.0%, and linolenic acid 19.3 %, a mixed fatty acid with an iodine value of 145.1. According to the fatty acid accounts for 25% of the collector, the sodium hydroxide with a concentration of 30%w accounts for 11%, and the rest is water. Add the materials to the reaction kettle according to the above-mentioned proportion, and stir...

Embodiment 2

[0021] Mineral samples from Haikou, Yunnan, grade P 2 O 5 23.09%, MgO 2.68%, SiO 2 22.00%, CaO 40.13%, of which MgO grade is relatively high, belonging to a more typical silicocalcite collophane. Therefore, the positive flotation process of the mine only needs to remove a certain amount of silicate gangue, and then carry out reverse flotation to remove magnesium to obtain qualified phosphate concentrate. Therefore, the positive flotation collector of Haikou Mine should be selected for collection. Rubber seed oil fatty acid with relatively good performance. Specific examples of fatty acid production are:

[0022] The rubber seed oil is hydrolyzed under medium pressure, frozen to 13°C, and emulsified and separated by adding electrolyte sodium sulfate and emulsifier sodium octyl sulfate. The composition contains palmitic acid 6.99%, stearic acid 1.93%, and oleic acid 30.72. %, 40.18% linoleic acid, 20.19% linolenic acid, and a mixed fatty acid with an iodine value of 154.48. Acc...

Embodiment 3

[0025] Mineral samples from Jinning area, Yunnan, grade P 2 O 5 20.08%, MgO 1.09%, SiO 2 38.04%, CaO 29.04%, of which SiO 2 It is of high grade and is a typical siliceous collophane. Since the MgO grade of the mine is low, the main method is positive flotation desiliconization, and the rubber seed oil fatty acid with relatively low iodine value and better selectivity is appropriate. Specific examples of fatty acid production are:

[0026] The rubber seed oil is hydrolyzed under medium pressure, frozen to 14°C, emulsified and separated. The components are composed of palmitic acid 9.8%, stearic acid 4.7%, oleic acid 25.1%, linoleic acid 38.2%, and linolenic acid 22.2 %, a mixed fatty acid with an iodine value of 151.29. According to the fatty acid accounts for 35% of the collector, the sodium hydroxide with a concentration of 30%w accounts for 18%, and the rest is sweet water. Add the materials to the reaction kettle according to the above-mentioned proportion and stir for 1.5h ...

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Abstract

The invention relates to a collophanite froth flotation collecting agent, in particular to a method for preparing a collecting agent by processing and separating rubber seed oil as a main raw material. The method comprises the steps of: placing the rubber seed oil as the main raw material in a hydrolysis reaction kettle for medium-pressure hydrolysis, hydrolyzing to obtain mixed fatty acid, adding sodium sulfate as an electrolyte and sodium octylsulfate as an emulsifying agent, uniformly stirring, centrifugally separating to obtain two kinds of mixed fatty acid, adding sodium hydroxide for carrying out quaternization, and then adding an additive to obtain the collophanite froth flotation collecting agent. The invention has the advantages of simple process, low cost and no three-waste discharge. A prepared positive floatation collecting agent has the characteristics of good water-solubility, excellent resistance to low temperature, consumption reduction and the like. A prepared negative floatation collecting agent has the characteristics of good selectivity, chemical saving, high floatation speed and the like.

Description

Technical field [0001] The invention relates to a collophanite flotation collector prepared by using rubber seed oil as the main raw material, and different flotation collectors prepared by a special method. Background technique [0002] Phosphate collectors are generally based on mixed fatty acids and their derivatives. Because the mixed fatty acid contains palmitic acid, stearic acid, oleic acid, linoleic acid, and linolenic acid, the relative content of its components varies greatly, which has a great impact on the performance of the prepared collector. This type of collector The low temperature resistance of the agent is also poor, and it is usually required to heat the slurry, which leads to high production costs and high energy consumption. Therefore, it is very necessary to use existing raw materials to produce a positive flotation collector with strong low temperature resistance and strong collection capacity and a good selectivity, fast flotation speed, and reverse flot...

Claims

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Application Information

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IPC IPC(8): B03D1/018C11C1/04B03D101/02B03D103/04
Inventor 罗廉明何太国梁永忠夏敬源赵靖王云昆
Owner YUNNAN PHOSPHATE CHEM GROUP CORP
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