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A kind of preparation method of mica collector

A collector and mica technology, applied in the direction of solid separation, flotation, etc., can solve the problems that limit the implementation efficiency of mica flotation industry, and achieve the effect of not being easily decomposed by heat, reducing the cost of sorting, and broad application prospects

Active Publication Date: 2019-12-03
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there are many requirements and restrictions on the storage and use of amine collectors, which greatly limit the industrial implementation efficiency of mica flotation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: the preparation method of this mica collector, concrete operations are as follows:

[0016] (1) Use a hydrochloric acid solution with a mass concentration of 0.4% to dissolve the dodecylamine solid to obtain a dodecylamine solution; pour the dodecylamine solution into the sodium dodecylsulfonate solution and stir for 45 minutes to obtain a mixed solution; The mol ratio of diamine and hydrochloric acid is 1:1.1, and the mol ratio of dodecylamine and sodium dodecylsulfonate in the mixed solution obtained wherein is 1:1.2;

[0017] (2) Add the mixed solution into the centrifuge equipment for centrifugation, set the centrifugal force field to 1600G, and set the centrifugation time to 3 hours;

[0018] (3) Take out the centrifuged sediment and put it into a vacuum oven for drying. The obtained solid dry matter is the mica collector. The air pressure inside the oven is set at 0.08MPa, and the oven temperature is set at 35°C; the conversion rate of the final prod...

Embodiment 2

[0020] Embodiment 2: the preparation method of this mica collector, concrete operations are as follows:

[0021] (1) Use a hydrochloric acid solution with a mass concentration of 0.5% to dissolve the dodecylamine solid to obtain a dodecylamine solution; pour the dodecylamine solution into the sodium cetylsulfonate solution and stir for 40 minutes to obtain a mixed solution; The mol ratio of diamine and hydrochloric acid is 1:1.2, and the mol ratio of dodecylamine and cetyl sodium cetylsulfonate in the mixed solution obtained wherein is 1:1.15;

[0022] (2) Add the mixed solution into the centrifuge equipment for centrifugation, set the centrifugal force field to 1400G, and set the centrifugation time to 2.5 hours;

[0023] (3) Take out the centrifuged sediment and put it into a vacuum oven for drying. The obtained solid dry matter is the mica collector. The air pressure inside the oven is set at 0.05MPa, and the oven temperature is set at 38°C; the conversion rate of the final...

Embodiment 3

[0025] Embodiment 3: the preparation method of this mica collector, concrete operations are as follows:

[0026] (1) Use a hydrochloric acid solution with a mass concentration of 0.3% to dissolve the octadecylamine solid to obtain a octadecylamine solution; pour the octadecylamine solution into the sodium dodecylsulfonate solution and stir for 35 minutes to obtain a mixed solution; wherein The mol ratio of octadecylamine and hydrochloric acid is 1:1.15, and the mol ratio of octadecylamine and sodium dodecylsulfonate in the mixed solution obtained wherein is 1:1.12;

[0027] (2) Add the mixed solution into the centrifuge equipment for centrifugation, set the centrifugal force field to 1300G, and set the centrifugation time to 2 hours;

[0028] (3) Take out the centrifuged sediment and put it into a vacuum oven for drying. The obtained solid dry matter is the mica collector. The air pressure inside the oven is set at 0.07MPa, and the oven temperature is set at 40°C; the conversi...

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PUM

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Abstract

The invention discloses a preparation method of a mica collecting agent and belongs to the technical field of mineral processing engineering. The preparation method of the mica collecting agent includes that firstly, a dodecylamine or octadecylamine solution is mixed with a sodium dodecyl sulfonate or sodium hexadecyl sulfonate solution, and stirring is performed; a mixed solution is subjected to centrifuging separation; a precipitate obtained through centrifuging is subjected to vacuum low temperature drying; and obtained solid dried matter is the mica collecting agent. The mica collecting agent is mainly used for floatation of micro fine mica and has the beneficial effects of being high in converting rate, stable in performance and small in using amount.

Description

technical field [0001] The invention belongs to the technical field of mineral processing engineering, and relates to a preparation method of a mica collector. Background technique [0002] With the rapid consumption of high-quality mica resources, the application of fine-grained mica resources and related recycling work have received increasing attention. In the recovery of fine-grained mica resources, the flotation method is often used to recover mica particles. The traditional mica flotation process includes acidic cation flotation and alkaline anion-cation flotation. The reagents and process systems of these processes are simple, but the process Cationic collectors such as dodecylamine and octadecylamine are often used in China. These amine collectors are corrosive and are susceptible to thermal decomposition releasing toxic nitrogen oxide fumes. Therefore, there are many requirements and restrictions on the storage and use of amine collectors, which greatly limit the ...

Claims

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Application Information

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IPC IPC(8): B03D1/018B03D101/02B03D103/02
CPCB03D1/018B03D2201/02B03D2203/02
Inventor 童雄吕昊子
Owner KUNMING UNIV OF SCI & TECH
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