CN105750092A - Novel coal preparation collecting agent and preparation method thereof - Google Patents
Novel coal preparation collecting agent and preparation method thereof Download PDFInfo
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- CN105750092A CN105750092A CN201610132585.1A CN201610132585A CN105750092A CN 105750092 A CN105750092 A CN 105750092A CN 201610132585 A CN201610132585 A CN 201610132585A CN 105750092 A CN105750092 A CN 105750092A
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- Prior art keywords
- collecting agent
- preparation
- aromatic hydrocarbons
- light diesel
- coal
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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
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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
- 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
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Solid Fuels And Fuel-Associated Substances (AREA)
Abstract
The invention discloses a novel coal preparation collecting agent and a preparation method thereof. The collecting agent is prepared from the following raw materials by weight percent: 80% of residual aromatic hydrocarbon, 5% of light diesel oil, 1%-5% of an emulsifier, and 10%-14% of water. The preparation method comprises the following steps: mixing residual aromatic hydrocarbon and the light diesel oil in a required ratio in a reaction kettle with stirring function, uniformly stirring, adding a mixed solution prepared from the emulsifier and water in a required ratio into the mixed oil liquid under a stirring condition, and continuously stirring till the solution becomes brown. According to the invention, residual aromatic hydrocarbon is used for preparing the coal preparation collecting agent instead of kerosene or diesel oil, so that energy is saved, the cost of coal preparation is lowered, and excellent economic and social benefits can be achieved. The coal preparation collecting agent has the advantages of good stability and simple preparation process, and on the premise of increasing the yield of floating concentrates and reducing the content of ash in tailings, the rate of oil saving can be up to 25%, so that energy conservation and emission reduction are facilitated, and economic performance is improved.
Description
Technical field
The present invention relates to a kind of coal collecting agent with aromatic hydrocarbons raffinate as raw material and preparation method thereof, belong to coal slime flotation collector preparing technical field, a kind of novel coal separation collecting agent and preparation method thereof.
Background technology
Along with constantly deterioration, the increasing of mechanical coal mining ratio of coal field geology condition, in raw coal, coal slurry content increased, and user and all sectors of society require to improve further the quality of cleaned coal simultaneously, thus the effect that flotation is in coal separation just becomes particularly important.Floatation process generally requires addition floating agent to change the hydrophobicity on coal surface, improve coal floatability, it is achieved coal efficiently separates with spoil.Conventional floating agent has collecting agent, regulator and foaming agent, and wherein collecting agent is mostly important.
Some common coal collecting agents are usually some non-polar hydrocarbon oil at present, such as kerosene, light diesel fuel, fuel oil etc..It forms oil film as adsorption of collector in the surface of coal grain, strengthens the hydrophobicity on coal grain surface so that it is firmly sticks to bubble surface and forms mineral laden bubble, and then separate with hydrophilic spoil, it is achieved the purpose of sorting.But, the kind of hydrocarbon-type oil is different, and the molecular weight of hydrocarbon is different, and flotation effect is the most not ideal.The oil of low-molecular-weight, easily at coal grain unfolded surface, but oil film is unstable, and may penetrate in the hole of coal so that floating agent consumption increases.
Summary of the invention
Undesirable in order to solve common coal collecting agent flotation effect, and the problem such as floating agent consumption is bigger, the present invention provides a kind of novel coal separation collecting agent and preparation method thereof；This novel coal separation collecting agent can occasionally improve the hydrocarbon-type oil selectivity to cleaned coal, improves flotation effect, saves flotation cost.
The technical solution adopted in the present invention is: a kind of novel coal separation collecting agent and preparation method thereof, its raw material includes: aromatic hydrocarbons raffinate, light diesel fuel, emulsifying agent, water；Wherein aromatic hydrocarbons raffinate is that petroleum chemical enterprise refines the raffinate produced in purification process at aromatic hydrocarbons C10, is with aromatic hydrocarbons C10 as raw material, separates through rectifying and prepares, and outward appearance is brown liquid, and its boiling range is 260-280 ° of C, and density is 0.97-0.99 g/cm3, acid number is 0.06-0.10, and flash-point is 100-110 ° of C；Light diesel fuel is formed by component blendings such as straight-run diesel oil, catalytic cracking diesel oil, hydrogenated diesel oil and coker gas oils, selects the light diesel fuel of No. 0；Emulsifying agent is neopelex, its content concretely 1%, 3%, 5%；
The mass percent of the raw material dosage of this kind of novel coal separation collecting agent and preparation method thereof is: aromatic hydrocarbons raffinate 80%, light diesel fuel 5%, emulsifying agent 1%-5%, water 10%-14%.
The preparation method of this kind of novel coal separation collecting agent is as follows:
1.. first aromatic hydrocarbons raffinate is mixed in the reactor putting into band stirring with light diesel fuel according to the proportion of regulation, stir 30min, form mixed oil liquid；
2.. emulsifying agent is mixed according to the proportion of regulation with water, obtains the mixed liquor of emulsifying agent and water；
3.. with the stir speed (S.S.) of 100rmp, adding the mixed liquor of emulsifying agent and water under conditions of stirring in the mixed oil liquid of aromatic hydrocarbons raffinate and light diesel fuel, continuing stirring to solution is brown.
The invention has the beneficial effects as follows: this kind of novel coal separation collecting agent and preparation method thereof is to utilize aromatic hydrocarbons raffinate to produce coal separation collecting agent, replace kerosene or diesel oil, it is possible not only to save the energy, reduces coal separation cost, and there is good economic benefit and social benefit；Meanwhile, this one coal separation collecting agent good stability, preparation technology are simple, on the premise of floating essence productivity, tail coal ash content all have improvement, rate of economizing gasoline up to 25%, beneficially energy-saving and emission-reduction, the advantage such as increase economic efficiency.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described, and following example are intended to illustrate rather than limitation of the invention further.
The preparation method of coal separation collecting agent；Described reagent and material, obtain the most from commercial channels.
Embodiment 1: preparation coal separation collecting agent
80 parts of aromatic hydrocarbons raffinates (referring to mass parts, lower same) and 5 parts of No. 0 light diesel fuels are put in the reactor that band stirs and mixed, starts stirring 30min.With the stir speed (S.S.) of 100rmp, adding while stirring containing 1 part of neopelex and the solution of 14 parts of water, continuing stirring to solution is brown.
Comparative example 1: the collecting agent of the present invention carries out the effect test of flotation to coal slime
Collecting agent embodiment 1 prepared and kerosene, diesel oil, as collecting agent, carry out flotation experiments to Jiang Zhuan colliery, Shandong coal slime, and with sec-octyl alcohol as foaming agent, experimental result is shown in Table 1.
As shown in Table 1, coal slime flotation collector prepared by aromatic hydrocarbons raffinate, and directly use compared with kerosene, diesel oil makees collecting agent, cleans ash reduces 0.65% and 0.71% respectively, clean coal yield has been respectively increased 3.64% and 6.33%, and rate of economizing gasoline is 25%.
Table 1
Embodiment 2: preparation coal separation collecting agent
80 parts of aromatic hydrocarbons raffinates (referring to mass parts, lower same) and 5 parts of No. 0 light diesel fuels are put in the reactor that band stirs and mixed, starts stirring 30min.With the stir speed (S.S.) of 100rmp, adding while stirring containing 3 parts of neopelexes and the solution of 12 parts of water, continuing stirring to solution is brown.
Comparative example 2: the collecting agent of the present invention carries out the effect test of flotation to coal slime
Collecting agent embodiment 2 prepared and kerosene, diesel oil, as collecting agent, carry out flotation experiments to Jiang Zhuan colliery, Shandong coal slime, and with sec-octyl alcohol as foaming agent, experimental result is shown in Table 2.
As shown in Table 2, coal slime flotation collector prepared by aromatic hydrocarbons raffinate, and directly use compared with kerosene, diesel oil makees collecting agent, cleans ash reduces 0.45% and 0.81% respectively, clean coal yield has been respectively increased 6.34% and 8.83%, and rate of economizing gasoline is 25%.
Table 2
Embodiment 3: preparation coal separation collecting agent
80 parts of aromatic hydrocarbons raffinates (referring to mass parts, lower same) and 5 parts of No. 0 light diesel fuels are put in the reactor that band stirs and mixed, starts stirring 30min.With the stir speed (S.S.) of 100rmp, adding while stirring containing 5 parts of neopelexes and the solution of 10 parts of water, continuing stirring to solution is brown.
Comparative example 3: the collecting agent of the present invention carries out the effect test of flotation to coal slime
Collecting agent embodiment 3 prepared and kerosene, diesel oil, as collecting agent, carry out flotation experiments to Jiang Zhuan colliery, Shandong coal slime, and with sec-octyl alcohol as foaming agent, experimental result is shown in Table 3.
As shown in Table 3, coal slime flotation collector prepared by aromatic hydrocarbons raffinate, and directly use compared with kerosene, diesel oil makees collecting agent, cleans ash reduces 0.50% and 0.87% respectively, clean coal yield has been respectively increased 6.04% and 9.13%, and rate of economizing gasoline is 25%.
Table 3
| Collecting agent kind | Collector dosage (g/T) | Cleaned coal product/% | Cleans ash/% | Tail coal ash content/% |
| Kerosene | 600 | 57.23 | 8.37 | 53.28 |
| Diesel oil | 600 | 54.14 | 8.68 | 51.62 |
| New collector | 450 | 63.27 | 7.81 | 58.24 |
Claims (6)
1. a novel coal separation collecting agent, is characterized in that: it is made up of following substances: aromatic hydrocarbons raffinate, light diesel fuel, emulsifying agent, water.
One the most according to claim 1 novel coal separation collecting agent, is characterized in that: the mass percent of the raw material dosage of its preparation method is: aromatic hydrocarbons raffinate 80%, light diesel fuel 5%, emulsifying agent 1%-5%, water 10%-14%.
One the most according to claim 1 novel coal separation collecting agent, its preparation method feature is: the most first mixed in the reactor putting into band stirring according to the proportion of regulation with light diesel fuel by aromatic hydrocarbons raffinate, starts stirring 30min, forms mixed oil liquid；2. emulsifying agent is mixed according to the proportion of regulation with water, obtain the mixed liquor of emulsifying agent and water；3. with the stir speed (S.S.) of 100rmp, adding the mixed liquor of emulsifying agent and water under conditions of stirring in the mixed oil liquid of aromatic hydrocarbons raffinate and light diesel fuel, continuing stirring to solution is brown.
A kind of coal separation collecting agent the most according to claim 1, it is characterised in that: described aromatic hydrocarbons raffinate is with aromatic hydrocarbons C10 as raw material, separates through rectifying and prepares, and outward appearance is brown liquid；Its boiling range is 260-280 ° of C, and density is 0.97-0.99 g/cm3, acid number is 0.06-0.10, and flash-point is 100-110 ° of C.
A kind of coal separation collecting agent the most according to claim 1, it is characterised in that: described light diesel fuel is O light diesel fuel.
A kind of coal separation collecting agent the most according to claim 1, it is characterised in that: described emulsifying agent is neopelex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610132585.1A CN105750092A (en) | 2016-03-10 | 2016-03-10 | Novel coal preparation collecting agent and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610132585.1A CN105750092A (en) | 2016-03-10 | 2016-03-10 | Novel coal preparation collecting agent and preparation method thereof |
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| CN105750092A true CN105750092A (en) | 2016-07-13 |
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| CN201610132585.1A Withdrawn CN105750092A (en) | 2016-03-10 | 2016-03-10 | Novel coal preparation collecting agent and preparation method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562215A (en) * | 2016-03-10 | 2016-05-11 | 徐州工程学院 | Novel coal dressing foaming agent and preparation method thereof |
| CN107470032A (en) * | 2017-08-16 | 2017-12-15 | 黑龙江工业学院 | A kind of complex floatation agent for coal preparation and preparation method thereof |
| CN108927290A (en) * | 2017-12-19 | 2018-12-04 | 辽宁德巴斯实业有限公司 | Coal separation collecting agent and preparation method thereof |
| CN110575910A (en) * | 2019-09-12 | 2019-12-17 | 山东巨野友邦实业有限公司 | Novel environment-friendly mineral separation agent |
| CN112844853A (en) * | 2021-01-14 | 2021-05-28 | 东营市胜都石油技术有限公司 | Flotation aid and preparation method and application thereof |
| CN113171878A (en) * | 2021-04-26 | 2021-07-27 | 淮北市美丽新材料有限公司 | GH type non-toxic environment-friendly efficient coal dressing collecting agent |
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| US3799869A (en) * | 1972-04-13 | 1974-03-26 | Exxon Research Engineering Co | Method of producing jet fuel by upgrading light catalytic cycle oil |
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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 |
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| US3799869A (en) * | 1972-04-13 | 1974-03-26 | Exxon Research Engineering Co | Method of producing jet fuel by upgrading light catalytic cycle oil |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562215A (en) * | 2016-03-10 | 2016-05-11 | 徐州工程学院 | Novel coal dressing foaming agent and preparation method thereof |
| CN107470032A (en) * | 2017-08-16 | 2017-12-15 | 黑龙江工业学院 | A kind of complex floatation agent for coal preparation and preparation method thereof |
| CN108927290A (en) * | 2017-12-19 | 2018-12-04 | 辽宁德巴斯实业有限公司 | Coal separation collecting agent and preparation method thereof |
| CN110575910A (en) * | 2019-09-12 | 2019-12-17 | 山东巨野友邦实业有限公司 | Novel environment-friendly mineral separation agent |
| CN112844853A (en) * | 2021-01-14 | 2021-05-28 | 东营市胜都石油技术有限公司 | Flotation aid and preparation method and application thereof |
| CN113171878A (en) * | 2021-04-26 | 2021-07-27 | 淮北市美丽新材料有限公司 | GH type non-toxic environment-friendly efficient coal dressing collecting agent |
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Application publication date: 20160713 |
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