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Method for preparing flotation collector from ether mixture

A mixture and collector technology, applied in flotation, solid separation, etc., can solve the problems of high cost, high chemical consumption, and uneconomical low-rank coal flotation, and achieve easy access, wide sources, and low price Effect

Inactive Publication Date: 2020-07-31
HENAN ANLIXIN ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In flotation separation, when diesel oil is used as collector, the coal slime consumption per ton is above 8kg / t, some even as high as 50kg / t. The high reagent cost makes low-rank coal flotation uneconomical.
[0004] Therefore, in view of the current situation of high chemical consumption, high cost and poor operability of unconventional flotation methods for conventional flotation of low-rank coal slime, the development of special high-efficiency reagents suitable for conventional flotation of low-rank coal slime will not only help realize the Thermal coal slime flotation upgrading and efficient and clean utilization of coal resources are of great significance to reducing coal-burning pollution and improving the economic efficiency of coal enterprises

Method used

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  • Method for preparing flotation collector from ether mixture
  • Method for preparing flotation collector from ether mixture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of ether mixture prepares the method for flotation collector, comprises the following steps:

[0022] (1), choose the hydrocarbon oil of mass ratio 46%, the mixed ether of 48%, the accelerator of 6%.

[0023] The hydrocarbon oil is selected from C10-C16 hydrocarbon oil, and diesel oil is selected in this embodiment.

[0024] The mixed ether is a mixture of dimethoxy dimethyl ether and trimethoxy dimethyl ether, and the mass ratio of dimethoxy dimethyl ether to trimethoxy dimethyl ether is 20:3.

[0025] Accelerator selects diethylene oxide.

[0026] (2), each component in step (1) is added in the mixing tank respectively, utilize stirring shaft to stir to make it mix evenly, stirring time 10 minutes;

[0027] (3) After the stirring is completed, the collector is obtained.

Embodiment 2

[0029] A kind of ether mixture prepares the method for flotation collector, comprises the following steps:

[0030] (1), choose the hydrocarbon oil of mass ratio 50%, the mixed ether of 45%, the accelerant of 5%.

[0031] The hydrocarbon oil is selected from C10-C16 hydrocarbon oil, and diesel oil is selected in this embodiment.

[0032] The mixed ether is a mixture of dimethoxy dimethyl ether and trimethoxy dimethyl ether, and the mass ratio of dimethoxy dimethyl ether to trimethoxy dimethyl ether is 20:4.

[0033] Accelerator selects diethylene oxide.

[0034] (2), each component in step (1) is added in the mixing tank respectively, utilize stirring shaft to stir to make it mix evenly, and stirring time is 13 minutes;

[0035] (3) After the stirring is completed, the collector is obtained.

Embodiment 3

[0037] A kind of ether mixture prepares the method for flotation collector, comprises the following steps:

[0038] (1), choose the hydrocarbon oil of mass ratio 45%, the mixed ether of 50%, the accelerator of 5%.

[0039] The hydrocarbon oil is selected from C10-C16 hydrocarbon oil, and diesel oil is selected in this embodiment.

[0040] The mixed ether is a mixture of dimethoxy dimethyl ether and trimethoxy dimethyl ether, and the mass ratio of dimethoxy dimethyl ether to trimethoxy dimethyl ether is 20:3.

[0041] Accelerator selects diethylene oxide.

[0042] (2), each component in step (1) is added in the mixing tank respectively, utilizes stirring shaft to stir to make it mix evenly, stirring time 12 minutes;

[0043] (3) After the stirring is completed, the collector is obtained.

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Abstract

The invention relates to a method for preparing a flotation collector from an ether mixture, which comprises the following steps: (1) selecting 45-50% of hydrocarbon oil, 45-50% of mixed ether and 5-10% of an accelerator; (2) respectively adding the components in the step (1) into a mixing tank, and stirring for 10-15 minutes by using a stirring shaft to uniformly mix the components; and (3) afterthe stirring is completed, obtaining the product. Experiments prove that by using the collector, the flotation efficiency can be remarkably improved, the agent consumption is reduced, and then the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of flotation agents, in particular to a method for preparing a flotation collector from an ether mixture. Background technique [0002] Flotation, as the most widely used method for separating fine-grained minerals, can effectively reduce ash and improve the quality of fine-grained coal slime, and increase its utilization value. However, conventional collectors (such as diesel oil, kerosene, etc.) used in the flotation of low-rank coal slime have problems such as high chemical consumption and high flotation costs, making it difficult to achieve economical and efficient separation of low-rank coal slime. Therefore, a large number of low-rank coal slimes that have not been sorted and upgraded are selected to be mixed with fine coal for sorting, resulting in a decline in the quality of thermal coal products and serious combustion pollution. As for some medium-high-ash low-rank coal slimes, they are discarded t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/018B03D101/02B03D103/08
CPCB03D1/018B03D2201/02B03D2203/08
Inventor 唐凌云闫利萍付红磊
Owner HENAN ANLIXIN ENVIRONMENTAL PROTECTION TECH CO LTD
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