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A collophosite reverse flotation collector and its preparation method and application method

A collector and reverse flotation technology, applied in flotation, solid separation, etc., can solve problems such as difficult to meet the use requirements, large amount of collector used, poor low-temperature flotation effect, etc., to achieve good collection effect, The effect of stable flotation index and less chemical usage

Active Publication Date: 2019-03-05
ANHUI UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] To sum up, the above-mentioned types of existing collectors more or less have the problems of large amount of collectors, high cost of agents, poor flotation selectivity, sensitivity to ore slime, poor adaptability, and low-temperature flotation effect. Poor problems, especially for the separation effect of apatite and carbonate minerals in high magnesium (calcium) phosphate rock, it is difficult to meet the use requirements
In addition, some collectors also contain a certain amount of toxic substances, which will cause certain pollution to the environment.

Method used

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  • A collophosite reverse flotation collector and its preparation method and application method
  • A collophosite reverse flotation collector and its preparation method and application method

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preparation example Construction

[0048] In view of the above problems existing in the existing collectors, the inventors optimized the design of the reaction raw materials and their proportions and reaction process parameters through a large number of experimental studies. High-efficiency separation of limestone and carbonate minerals, and the collector has good mud resistance, strong foaming ability, strong collection ability, strong adaptability, low synthesis cost, etc., high and stable flotation index, and at the same time Its preparation process is simple, low in cost and non-toxic. Using the collector obtained in the present invention in combination with an anionic surfactant or a nonionic surfactant greatly improves the low temperature resistance of the collector, and at the same time, the selectivity is also greatly improved. The preparation method of the high-calcium (magnesium) quality collophosphate reverse flotation collector of the present invention specifically comprises the following steps:

...

Embodiment 1

[0064] The preparation method of a kind of collophanite reverse flotation collector of the present embodiment comprises the following steps:

[0065] (1) Mix the extracted oil of decompressed pentanophenol with gasoline at a mass ratio of 1:2 and place it in a reactor, stir and heat at 25°C, and then add fuming sulfuric acid into the reactor for sulfonation agent for sulfonation, SO in the oleum used 3 The mass fraction is 15wt%, the sulfonation temperature is 50°C, and the sulfonation time is 1h to obtain a sulfonated product with an oil content of 57wt%.

[0066] (2) The obtained sulfonated product is stirred and washed with water and left to stand for stratification, and the organic layer is saponified using NaOH solution as a saponification agent to obtain a sulfonate, the mass ratio of the organic layer to the NaOH solution is 4:2, and Saponification pH=8.

[0067] (3) The obtained sulfonate and soybean oleic acid are compounded into a mixture at a mass ratio of 10:1, a...

Embodiment 2

[0078] The preparation method of a kind of collophanite reverse flotation collector of the present embodiment comprises the following steps:

[0079] (1) Mix the extracted oil of decompressed pentanophenol with gasoline at a mass ratio of 4:1 and place in a reactor, stir and heat at 20°C, and then add fuming sulfuric acid into the reactor for sulfonation agent for sulfonation, SO in the oleum used 3 The mass fraction is 25wt%, the sulfonation temperature is 65°C, and the sulfonation time is 2h to obtain a sulfonated product with an oil content of 55wt%.

[0080] (2) The obtained sulfonated product is stirred and washed with water and allowed to stand for stratification, and the organic layer is saponified using NaOH solution as a saponification agent to obtain a sulfonate, and the mass ratio of the organic layer to the NaOH solution is 10:1, and Saponification pH=11.

[0081] (3) Compound the obtained sulfonate and soybean oleic acid in a mass ratio of 4:1 to form a mixture,...

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Abstract

The invention discloses a collophanite reverse flotation collector and a preparation method and an application method thereof, and belongs to the technical field of solid mineral resource separation. Vacuum five-line phenol extract oil, a diluent, fuming sulphuric acid, sodium hydroxide and the like are used as raw materials, after raw oil and the diluent are mixed according to a certain mass percent, the fuming sulphuric acid is fed into a reaction still for sulfonation, stirring and washing are conducted after a sulfonation reaction is completed, still standing is conducted for layering, an organic layer is taken for primary saponification in a saponification reaction still, and sulphonate is obtained; and the obtained sulphonate and soy acid are compounded into a mixture according to a certain mass percent, the mixture is subjected to secondary saponification, and the anionic high-calcium (high-magnesium) collophanite reverse flotation collector is obtained. The collector is simple in preparation process, high in adaptability (such as the temperature and the ore pulp pH), good in mud resistance, high and stable in flotation index, low in cost and free of toxicity; and when the collector is applied to high-calcium (high-magnesium) collophanite flotation, the high-phosphate concentrate grade (P2O5) can be remarkably improved, the recovery rate of high-phosphate concentrate can be remarkably increased, and the impurity content of the concentrate is lowered.

Description

technical field [0001] The invention belongs to the technical field of separation of solid mineral resources, and more specifically relates to a reverse flotation collector of high-magnesium or high-calcium glenite and its preparation method and application method. Background technique [0002] Flotation is the main method of phosphate ore beneficiation, which can be divided into forward flotation, reverse flotation and reverse ~ forward flotation, etc. The flotation effect mainly depends on the collector used. In the early days, the collectors used in phosphate rock flotation generally used oxidized paraffin soap, tall oil and other fatty acids and their soap collectors to recover phosphate and carbonate, but the selectivity of this type of collector was relatively poor. The adaptability of hard water and low temperature flotation is poor. In order to make the fatty acid collectors well dispersed, phosphate rock flotation usually needs heating flotation, and the process req...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/018B03D101/02B03D103/06
CPCB03D1/018B03D2201/02B03D2203/06
Inventor 胡义明周永诚皇甫明柱杨帆龙思思
Owner ANHUI UNIVERSITY OF TECHNOLOGY
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