CN108636615B - A kind of Fine Coal Flotation collecting agent preparation method - Google Patents
A kind of Fine Coal Flotation collecting agent preparation method Download PDFInfo
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- CN108636615B CN108636615B CN201810350190.8A CN201810350190A CN108636615B CN 108636615 B CN108636615 B CN 108636615B CN 201810350190 A CN201810350190 A CN 201810350190A CN 108636615 B CN108636615 B CN 108636615B
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- flotation
- coal
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- oil
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/018—Mixtures of inorganic and organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
- B03D2203/04—Non-sulfide ores
- B03D2203/08—Coal ores, fly ash or soot
Abstract
A kind of Fine Coal Flotation collecting agent preparation method belongs to coal flotation pharmaceutical techniques field.Flotation collector preparation method, steps are as follows: (1) prepare candle ash: 4 candle flame top portion thereof 250ml beaker so that flame imperfect combustion, cigarette ash are attached to beaker inner wall, until beaker inner wall has coating of wax candle ash, preparation is completed, and is collected spare；(2) candle ash prepared by step (1) is taken into 1g, is added in the non-polar hydrocarbon oil of 120-180ml, 24-48h is stood after mixing；Obtain flotation collector.The candle ash prepared and adding a kind of imperfect combustion by candle in non-polar hydrocarbon oil, facilitates the rupture of mineral surfaces hydration shell and the dispersion of oil droplet, to be obviously improved the flotation recovery effect of coal slime in floatation process.Advantage: the more traditional non-polar hydrocarbon oil collecting agent of flotation collector facilitates the dispersion of the rupture and oil droplet of mineral surfaces hydration shell in floatation process, improves coal grain hydrophobicity, hence it is evident that improve the flotation recovery effect of coal slime.
Description
Technical field
The present invention relates to a kind of coal flotation pharmaceutical techniques field, especially a kind of Fine Coal Flotation collecting agent preparation method.
Background technique
Coal is as the most important fossil energy in China, within the following considerable time, consumes and ties in non-renewable energy
Leading position in structure will not change.Coal is the mixture of organic and inorganic materials, therefore needs to sort before use.With
The high speed development of national economy, demand for energy are continuously increased, and the coal of middle and high degree of metamorphism is largely exploited, and reserves increasingly subtract
Few, however, reserves are big, the low-order coal and oxidized coal easily obtained is effectively sorted due to being difficult to, and is not utilized well.
Coal high-efficiency sorting technology is the important prerequisite realizing coal resources clean and effective and utilizing.Wherein, flotation is current
, most efficient method most mature less than 0.5mm coal is sorted, and is widely used in industrial production.In flotation, flotation device point is used
From Bed for Fine Coal (< 0.5mm).In general, coal has natural hydrophobicity, but this hydrophobicity is not enough to effectively flotation,
It is generally necessary to which non-polar hydrocarbon oil such as diesel oil and kerosene further increase the floatability of coal particle as collecting agent.
However, a large amount of oxygen-containing functional group is often contained on surface, parent for float coal difficult for low-order coal and oxidized coal etc.
Aqueous strong, floatability is poor, is difficult to carry out effectively flotation, and poor selectivity using conventional oiliness medicament (diesel oil, kerosene etc.).
To solve the technical problem, current research, which focuses primarily upon, develops efficient floating agent or pharmaceutical agent combinations method, surface
The hydrophobicity and selectivity to improve difficult float coal surface such as modified.It is specifically included in floatation process and adds various surface-actives
Agent, ore grinding pretreatment, heating Pretreatment with Pressurized, microwave or ultrasonic pretreatment, high shear such as are sized mixing at the technological means.On although
The means of stating can improve the flotation effect of difficult float coal, but the higher cost that surface is modified, it is difficult to industrialize.Secondly, current grinds
Study carefully the oxygen-containing functional group quantity for focusing mainly on reducing coal surface, its hydrophobicity is improved, so as to improve its flotation effect.But
The problem of foam stability is poor in difficult-to-float coal floatation process, and the amount of solid of foamover is few, leads to its head coal product low yield
Enough attention is not obtained.Therefore, a kind of preparation method of pharmaceutical preparations for improving coal slime flotation recovering effect is developed, it will to change
The flotation recovery effect of kind coal slime provides new thinking.
Summary of the invention
The invention aims to provide a kind of Fine Coal Flotation collecting agent preparation method, non-polar hydrocarbon oil is solved in coal
The problem of mud flotation recovery cleaned coal flotation recovery effect difference.
The object of the present invention is achieved like this: flotation collector preparation method, steps are as follows:
(1) prepare candle ash: 4 candle flame top portion thereof 250ml beaker so that flame imperfect combustion, cigarette ash
It is attached to beaker inner wall, until beaker inner wall has coating of wax candle ash, preparation is completed, collected spare；
(2) candle ash prepared by step (1) is taken into 1g, is added in the non-polar hydrocarbon oil of 120-180ml, is stood after mixing
24-48h；Obtain flotation collector.
The non-polar hydrocarbon oil includes: kerosene, modified kerosene, diesel oil, fuel oil, natural gas cold oil or positive 12
Any one in alkane.
Beneficial effect is as the above scheme is adopted, a kind of incomplete by candle by adding in non-polar hydrocarbon oil
The candle ash of burning and preparation, facilitates the rupture of mineral surfaces hydration shell and the dispersion of oil droplet, thus bright in floatation process
The aobvious flotation recovery effect for improving coal slime.
It solves the problems, such as that non-polar hydrocarbon oil is poor in coal slime flotation recycling cleaned coal effect, has reached the purpose of the present invention.
Advantage: Fine Coal Flotation medicament preparation method, to cleaned coal upgrading, the more traditional non-polar hydrocarbon of flotation collector
Oily collecting agent facilitates the rupture of mineral surfaces hydration shell and the dispersion of oil droplet in floatation process, improves coal grain hydrophobicity, from
And it is obviously improved the flotation recovery effect of coal slime.
Detailed description of the invention
Fig. 1 is equipment schematic diagram prepared by candle ash of the invention.
Fig. 2 is flotation collector preparation flow figure of the invention.
Fig. 3 is flotation process figure of the invention.
Specific embodiment
In Fig. 2, flotation collector preparation flow figure, method and step is as follows:
(1) prepare candle ash: 4 candle flame top portion thereof 250ml beaker so that flame imperfect combustion, cigarette ash
It is attached to beaker inner wall, until beaker inner wall has coating of wax candle ash, preparation is completed, collected spare；(as shown in Figure 1)；
(2) candle ash prepared by step (1) is taken into 1g, is added in the non-polar hydrocarbon oil of 120-180ml, is stood after mixing
24-48h；Obtain flotation collector.
The non-polar hydrocarbon oil includes: kerosene, modified kerosene, diesel oil, fuel oil, natural gas cold oil or positive 12
Any one in alkane.
Specifically describing the preferred embodiment of the present invention with reference to the accompanying drawing, wherein attached drawing constitutes part of this application,
And it is used to illustrate the principle of the present invention together in the embodiment of the present invention.
Embodiment 1: the raw material of coal slime flotation medicament, non-polar hydrocarbon oil collecting agent presses solid-to-liquid ratio are as follows: candle ash 1g, non-pole
Property hydrocarbon-type oil 120-180ml；24-48h is stood after mixing；Obtain flotation collector.
The non-polar hydrocarbon oil includes: kerosene, modified kerosene, diesel oil, fuel oil, natural gas cold oil or positive 12
Any one in alkane.
As shown in figure 3, specific flotation process of the invention, steps are as follows:
1, granularity is added in flotation cell in 0.5mm fine slime below (raw material), tap water is added and sizes mixing, stirs 1-
3min。
2, collecting agent is added in the ore pulp of step 1, stirs 1-3min.
3, foaming agent is added in the ore pulp of step 2, stirs 0.5-1min.
4, it is filled with bubble in the ore pulp of step 3 and carries out flotation；Flotation time is 3-5min, collects foam emersion respectively
The particle stopped in particle and ore pulp, as final cleaned coal, tail coal product.
5, the fine slime in the step 1 is Shen Dong great Liu tower coal preparation plant jet coal；Water in the step 1 is originally
Water is perhaps deionized water or the recirculated water for production system.
6, the collecting agent in the step 2 is that collecting agent prepared by the present invention and simple non-polar hydrocarbon oil compare, and is used
Amount is respectively 5000,7000,9000g/t delivering dry coal slurry.
7, the foaming agent in the step 3 is sec-octyl alcohol, dosage 150g/t.
8, the solid masses concentration of the ore pulp in the step 2 is 60g/L.
9, in the step 7, in different agents dosage, collecting agent is compared compared with non-polar hydrocarbon oil, clean coal yield difference
Increase by 0.99%, 3.09%, 3.43%, cleans ash reduces by 2.09%, 3.63%, 2.91% respectively.
Claims (2)
1. a kind of Fine Coal Flotation collecting agent preparation method, it is characterized in that: flotation collector preparation method, steps are as follows:
(1) prepare candle ash: 4 candle flame top portion thereof 250ml beaker so that flame imperfect combustion, candle ash are attached
In beaker inner wall, until beaker inner wall has coating of wax candle ash, preparation is completed, is collected spare；
(2) candle ash prepared by step (1) is taken into 1g, is added in the non-polar hydrocarbon oil of 120-180ml, 24- is stood after mixing
48h；Obtain flotation collector.
2. a kind of Fine Coal Flotation collecting agent preparation method according to claim 1, it is characterized in that: the non-polar hydrocarbon
Class oil includes: any one in fuel oil, natural gas cold oil or n-dodecane；The fuel oil includes kerosene, modification
Kerosene and diesel oil.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810350190.8A CN108636615B (en) | 2018-04-18 | 2018-04-18 | A kind of Fine Coal Flotation collecting agent preparation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810350190.8A CN108636615B (en) | 2018-04-18 | 2018-04-18 | A kind of Fine Coal Flotation collecting agent preparation method |
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| CN108636615A CN108636615A (en) | 2018-10-12 |
| CN108636615B true CN108636615B (en) | 2019-10-01 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111389595B (en) * | 2020-04-01 | 2021-07-27 | 中国矿业大学 | Preparation method and device of low-rank coal flotation reagent based on ultraviolet pretreatment |
| CN113351376B (en) * | 2021-05-28 | 2023-03-31 | 中国矿业大学 | Gasified slag flotation collector and preparation method thereof |
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|---|---|---|---|---|
| CN101722111A (en) * | 2010-01-11 | 2010-06-09 | 山西医科大学 | Coal slime flotation collector and preparation method thereof |
| CN102319635A (en) * | 2011-09-27 | 2012-01-18 | 高露 | GH coal collector and preparation method thereof |
| RU2494817C1 (en) * | 2012-03-20 | 2013-10-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Кузбасский государственный технический университет имени Т.Ф. Горбачева" (КузГТУ) | Method of slurry coal and coal concentration |
| CN104313576A (en) * | 2014-11-11 | 2015-01-28 | 湖南工业大学 | Novel method for preparing super-hydrophobic surface on iron plate |
| CN105148562A (en) * | 2015-08-10 | 2015-12-16 | 中国海洋大学 | Candle-ash-assisted super-hydrophobic and super-oleophilic oil-water separation mesh film as well as preparation method and application of mesh film |
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| CN106757016A (en) * | 2016-11-16 | 2017-05-31 | 陕西盛迈石油有限公司 | The preparation method on super-hydrophobic copper surface |
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2018
- 2018-04-18 CN CN201810350190.8A patent/CN108636615B/en active Active
Patent Citations (7)
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|---|---|---|---|---|
| CN101722111A (en) * | 2010-01-11 | 2010-06-09 | 山西医科大学 | Coal slime flotation collector and preparation method thereof |
| CN102319635A (en) * | 2011-09-27 | 2012-01-18 | 高露 | GH coal collector and preparation method thereof |
| RU2494817C1 (en) * | 2012-03-20 | 2013-10-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Кузбасский государственный технический университет имени Т.Ф. Горбачева" (КузГТУ) | Method of slurry coal and coal concentration |
| CN104313576A (en) * | 2014-11-11 | 2015-01-28 | 湖南工业大学 | Novel method for preparing super-hydrophobic surface on iron plate |
| CN105148562A (en) * | 2015-08-10 | 2015-12-16 | 中国海洋大学 | Candle-ash-assisted super-hydrophobic and super-oleophilic oil-water separation mesh film as well as preparation method and application of mesh film |
| CN105523722A (en) * | 2016-01-21 | 2016-04-27 | 湖北大学 | Super-hydrophobic coating containing candle soot and preparation method of same |
| CN106757016A (en) * | 2016-11-16 | 2017-05-31 | 陕西盛迈石油有限公司 | The preparation method on super-hydrophobic copper surface |
Non-Patent Citations (1)
| Title |
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| Fabrication of Water Jet Resistant and Thermally Stable Superhydrophobic Surfaces by Spray Coating of Candle Soot Dispersion;Talal F.Qahtan etc.;《Scientific Reports》;20170808(第7期);第7531-7537段 * |
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| CN108636615A (en) | 2018-10-12 |
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