A kind of composite cationic collector and preparation method thereof

A cationic collector and composite technology, which is applied in the field of composite cationic collector and its preparation, can solve the problems of high viscosity of flotation foam, inconvenient preparation of reagents, difficulty in storage, etc., achieve low freezing point, enhanced floatability Sexuality and the effect of low drug consumption

Active Publication Date: 2019-10-11
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, when the beneficiation plant uses dodecylamine as a collector, it needs to be configured as dodecylamine hydrochloride or dodecylamine acetate. It is difficult to place and store hydrochloric acid and acetic acid, and it is inconvenient to prepare reagents. The flotation foam has high viscosity and low selectivity. Poor practical production issues

Method used

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  • A kind of composite cationic collector and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1: dodecylamine and secondary octanol prepare composite cationic collector

[0039] The specific preparation example is as follows:

[0040] Dodecylamine and 2-octanol were added into the beaker at mass ratios of 5:5 and 6:4 respectively, and mixed evenly by magnetic stirring. The agents were in the form of transparent liquid, which were recorded as collector ① and collector ② respectively.

Embodiment 2

[0041] Embodiment 2: kerosene, dodecylamine and secondary octanol prepare composite cationic collector

[0042] The specific preparation example is as follows:

[0043] Add kerosene, laurylamine, and 2-octyl alcohol into the beaker at a mass ratio of 36:24:40, 30:30:40, and 24:36:40, and stir and mix evenly with a magnetic force. The final drug is in the form of a transparent liquid , recorded as collector ③, collector ④ and collector ⑤ respectively.

Embodiment 3

[0044] Embodiment 3: kerosene, dodecylamine, secondary octanol, surfactant and water prepare composite cationic collector

[0045] The specific preparation example is as follows:

[0046] Span80 and Tween80 were added into the beaker at a mass ratio of 56:44, stirred evenly by magnetic stirring, and then used for later use (HLB value was 9), and the preparation of the composite surfactant was completed. Add kerosene, dodecylamine, 2-octanol, and complex surfactants into the beaker at a mass ratio of 32.7:32.7:29.0:3.6, 37.0:24.7:32.9:4.1, and start to drop them when they are mixed by magnetic stirring Distilled water, if the quality of kerosene, dodecylamine, 2-octyl alcohol, and composite surfactants are all in the above proportions, when the water is added dropwise to 2.0g and 1.4g, the medicine will change from turbid to transparent liquid, that is, it is prepared Microemulsion compound cationic collector. Recorded as collector ⑥ and collector ⑦ respectively.

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Abstract

The invention discloses a composite cationic collector and a preparation method thereof, which can be applied to the technical field of iron ore reverse flotation. The collector includes the following raw materials: dodecylamine and 2-octanol; the obtained collector is a transparent liquid with a freezing point of -18°C to 15°C and has foaming properties. The preparation method is as follows: mixing the raw materials according to the ratio requirement or by adding dropwise in batches; then stirring the mixture until it is uniform to complete the preparation. The collector obtained in the present invention can be used in reverse flotation of iron ore to achieve the purpose of saving dodecylamine and improving the grade of iron ore concentrate; the addition of 2-octanol makes the collector possess foaming in the reverse flotation process of iron ore The performance of the agent, the consumption of the agent is low, and the flotation effect is good; the collector can be fully dispersed in the pulp, which is conducive to its rapid collision with the mineral, enhances the buoyancy of the quartz, and improves the quality of the iron concentrate; dodecylamine does not It needs to be acidified, and can be used directly after being miscible with other chemicals, which is more convenient and environmentally friendly.

Description

technical field [0001] The invention relates to a composite cationic collector and a preparation method thereof, which uses minerals such as quartz and silicate as flotation objects and can be applied to the technical field of iron ore reverse flotation. Background technique [0002] The main gangue minerals in iron ore are quartz and silicate minerals. Reverse flotation is one of the effective ways to increase iron and reduce silicon from iron concentrate. Iron ore reverse flotation desiliconization process is mainly divided into cationic reverse flotation process and anion reverse flotation process. Among them, the reagent system of the anion reverse flotation process is complicated, and Ca needs to be added 2+ Activator, due to the poor solubility and dispersion of oleic acid series anion collectors at low temperature, it usually needs to be heated to about 30°C to have a better flotation effect. Compared with the anion reverse flotation process, the cationic reverse fl...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): B03D1/01B03D1/008B03D1/006B03D101/02B03D103/02
Inventor樊民强乔笑笑刘安赵学敏许国超
OwnerTAIYUAN UNIV OF TECH