CN108325755B - A kind of method of the modified preparation miscellaneous Polar Collectors of low order coal slime of hydrocarbon-type oil - Google Patents
A kind of method of the modified preparation miscellaneous Polar Collectors of low order coal slime of hydrocarbon-type oil Download PDFInfo
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- CN108325755B CN108325755B CN201810043147.7A CN201810043147A CN108325755B CN 108325755 B CN108325755 B CN 108325755B CN 201810043147 A CN201810043147 A CN 201810043147A CN 108325755 B CN108325755 B CN 108325755B
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- 239000003245 coal Substances 0.000 title claims abstract description 56
- 238000002360 preparation method Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000006243 chemical reaction Methods 0.000 claims abstract description 48
- 239000003814 drug Substances 0.000 claims abstract description 14
- 239000007795 chemical reaction product Substances 0.000 claims abstract description 7
- 238000009423 ventilation Methods 0.000 claims abstract description 5
- 230000004888 barrier function Effects 0.000 claims description 8
- 238000005273 aeration Methods 0.000 claims description 2
- 239000012495 reaction gas Substances 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 238000005188 flotation Methods 0.000 abstract description 21
- 239000003795 chemical substances by application Substances 0.000 abstract description 20
- 239000002994 raw material Substances 0.000 abstract description 12
- 239000004215 Carbon black (E152) Substances 0.000 abstract description 10
- 229930195733 hydrocarbon Natural products 0.000 abstract description 10
- 150000002430 hydrocarbons Chemical class 0.000 abstract description 10
- 239000000126 substance Substances 0.000 abstract description 4
- 230000008859 change Effects 0.000 abstract description 3
- 229940079593 drug Drugs 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 31
- 230000000694 effects Effects 0.000 description 5
- 238000007667 floating Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 239000003350 kerosene Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 239000004088 foaming agent Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010742 number 1 fuel oil Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000008177 pharmaceutical agent Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B03D1/004—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
The invention discloses a kind of method of the modified preparation miscellaneous Polar Collectors of low order coal slime of hydrocarbon-type oil, miscellaneous Polar Collectors are formed by hydrocarbon-type oil and air reaction；Preparation process is as follows: conventional hydrocarbon oil is fed reaction of low temperature plasma chamber by 1.；2. reaction cavity is placed in 3-5min in oscillator, medicament is made to be uniformly distributed in reaction chamber；3. being passed through flow into plasma reactor is 30L/ (min.m2) air；4. starting reaction of low temperature plasma device, make hydrocarbon-type oil and air reaction 5-10min；5. closing reaction of low temperature plasma device；6. stopping ventilation, reaction product is taken out from reactor, that is, is prepared into miscellaneous Polar Collectors.Advantage: preparation method of the present invention is simple, raw material is easy to get, processing efficient, take chemical change as major pharmaceutical property stabilization.Prepared by the method collecting agent can be such that low-rank coal flotation clean coal yield is substantially improved under identical drug dose.
Description
Technical field
The present invention relates to coal slime flotation fields, weak, floating for low order coal slime collecting ability for conventional hydrocarbon-based oil collecting agent
The problem of selecting low yield utilizes the modified method for preparing miscellaneous Polar Collectors of conventional dose the present invention provides a kind of.
Background technique
Low order coal slime is the microfine coal resources of generation during steam coal separation, is produced per year with the estimation roughly of yield 10%
Amount is at 200,000,000 tons or so.But at present mainly with mix mixed coal sale or stockpiling based on.Simultaneously generate electricity, the raw material lump coal of coal chemical industry must
It must be used after powder processed, directly can also simplify technique using the production cost that upgrading low order coal slime can not only save 10% and match
It sets.It is significant for raising resource utilization reduction power generation, coal chemical industry cost to develop the efficient method for upgrading of low order coal slime.
Flotation is the maturation of low order coal slime upgrading, effective ways, utilizes organic matter and inanimate matter moistened surface sex differernce reality
Now separate.But since low-order coal surface texture is complicated, there are a large amount of oxygen-containing functional group, hydrophilic region it is more cause it is conventional
It is difficult to effectively adsorb on low order coal slime surface using non-polar group as the hydrocarbon-type oil collecting agent of active structure.It is ideal in order to obtain
Floatation indicators need to be added a large amount of hydrocarbon-type oil collecting agents, and usual dosing is all even higher in 10kg/t or more, leads to flotation
Cost sharply increases.
In order to improve the performance of conventional hydrocarbon oil collecting agent, researcher has carried out a large amount of medicament developments.It is main logical
Cross conventional hydrocarbon oil is mixed by stirring with non polar reagent, distill condensation etc. modes compound, improve collecting agent and exist
The adsorbance on low-order coal surface achieves preferable effect.But the preparation process of compound drug is complicated, medicament kind is complicated and with
Based on simple compounding, while medicament price used is higher, needs further to explore efficient preparation method.Therefore it is directed to low order
Coal slime flotation routine collecting agent recycles the weak outstanding problem of ability, efficient, the miscellaneous polar pharmaceutical agent of low cost is developed, for realizing low order
High-qualityization of coal slime utilizes particularly significant.
Summary of the invention
The object of the present invention is to provide a kind of methods of the modified preparation miscellaneous Polar Collectors of low order coal slime of hydrocarbon-type oil.Only with
Conventional hydrocarbon-based oil collecting agent is raw material, and miscellaneous polar group, preparation and low order coal slime table are generated under exciting under plasma environment
The miscellaneous Polar Collectors of face physical fit realize the efficient upgrading of low-order coal.
The object of the present invention is achieved like this: preparing raw material is conventional hydrocarbon oil such as kerosene, diesel oil etc., normal in room temperature
Intensified, reacted to preparing raw material using low temperature atomsphere plasma under the conditions of pressure, polarity official is introduced on hydrocarbon-type oil ontology
It can roll into a ball, realize the preparation of the floating agent of miscellaneous polarity, strong collecting performance.
A kind of method of the modified preparation miscellaneous Polar Collectors of low order coal slime of hydrocarbon-type oil, miscellaneous Polar Collectors are by hydrocarbon-type oil and sky
Solid/liquid/gas reactions form, and preparation process is as follows:
A. hydrocarbon-type oil is given to reaction of low temperature plasma chamber；
B. reaction cavity is placed in oscillator, medicament is made to be uniformly distributed in reaction chamber；
C. air is passed through into plasma reactor；
D. start reaction of low temperature plasma device, make hydrocarbon-type oil and air reaction；
E. reaction of low temperature plasma device is closed；
F. stop ventilation, reaction product is taken out from reactor, that is, is prepared into miscellaneous Polar Collectors.
Further, plasma reactor used is dielectric barrier discharge principle, including single dielectric barrier discharge and double
Dielectric barrier discharge.
Further, the reaction gas being passed through is air, and produced plasma is air plasma.
Further, in the step c, the aeration quantity of air is 20-50L/ (min.m2)。
Further, plasma reactor operating current is 2A-3A, power 100W.
Further, the air plasma and hydrocarbon-type oil reaction time are 5-10min.
Further, in the step b, reaction cavity is placed in 3-5min in oscillator.
Further, preparing environment is normal temperature and pressure.
Further, the plasma reactor is CTP-2000K.
Further, air dosage required for unit mass (ml), unit time (min) hydrocarbon-type oil is 30-100ml.
Beneficial effect, low temperature plasma have sufficiently high energy make reactant molecule excitation, dissociation, can normal pressure,
Polar group abundant is introduced into conventional hydrocarbon oil under normal temperature condition, improves agent activity and collecting ability.Using this programme system
Standby miscellaneous Polar Collectors help to improve collecting agent in the adsorption effect on low order coal slime surface, by the pole on low order coal slime surface
Property region overlay improve the hydrophobicity on low order coal slime surface, be conducive to improve flotation yield, reduce flotation cost, and obtained reality
The verifying of border float test.
Compared with prior art, the present invention raw material type and source are simple, it is only necessary to which conventional collecting agent, cost is relatively low；It is modified
Process is simple, and condition requires low, high-efficient based on chemical reaction, easy implementation.It can simultaneously be effectively improves conventional floating
Select solvability in the collecting ability and water of medicament.
(1) raw material type is few, source is simple.The raw material of this preparation method only needs conventional collecting agent, cheap.
(2) flotation yield is high.Conventional flotation medicament is after this preparation method, in identical pharmaceutical use,
Low-order coal flotation yield can be improved 20% or more.
Detailed description of the invention
Fig. 1 is that hydrocarbon-type oil prepares miscellaneous Polar Collectors principle preparation flow figure.
Specific embodiment
The present invention relates to coal slime flotation fields, weak, floating for low order coal slime collecting ability for conventional hydrocarbon-based oil collecting agent
The problem of selecting low yield provides a kind of method for utilizing conventional dose modification to prepare miscellaneous Polar Collectors.Method of the invention
Be: miscellaneous Polar Collectors are formed by hydrocarbon-type oil and air reaction；Preparation process is as follows:
1. conventional hydrocarbon oil is fed reaction of low temperature plasma chamber；
2. reaction cavity is placed in 3-5min in oscillator, medicament is made to be uniformly distributed in reaction chamber；
3. being passed through flow into plasma reactor is 20-50L/ (min.m2) air；
4. starting reaction of low temperature plasma device, make hydrocarbon-type oil and air reaction 5-10min；
5. closing reaction of low temperature plasma device；
6. stopping ventilation, reaction product is taken out from reactor, that is, is prepared into miscellaneous Polar Collectors.
Advantage: preparation method of the present invention is simple, raw material is easy to get, processing efficient, take chemical change as major pharmaceutical property stabilization.
Prepared by the method collecting agent can be such that low-rank coal flotation clean coal yield is substantially improved under identical drug dose.
The present invention will be further explained with reference to the accompanying drawings and examples.
Embodiment
Raw material is prepared using conventional hydrocarbon oil collecting agent, the hydrocarbon-type oil is C10-C16, at normal temperatures and pressures with low temperature
Air plasma precursor reactant prepares miscellaneous Polar Collectors.
The preparation method:
Specific step is as follows:
1. hydrocarbon-type oil is fed reaction of low temperature plasma chamber；
2. reaction cavity is placed in 3-5min in oscillator, medicament is made to be uniformly distributed in reaction chamber；
3. being passed through flow into plasma reactor is 30L/ (min.m2) air；
4. starting reaction of low temperature plasma device, adjusting output power is 100W, operating current 2-3A, generates Cryogenic air
Plasma；
5. hydrocarbon-type oil is made to react 5-10min with low temperature atomsphere plasma；
6. closing reaction of low temperature plasma device；
7. stopping ventilation, after waiting 2min, reaction product is taken out from reactor, that is, is prepared into miscellaneous Polar Collectors.
In order to make the technology of the present invention method it should be readily understood that now in conjunction with attached drawing using specific example, to technical side of the invention
Case is described.It is to be noted that embodiment described herein is only section Example of the invention, and non-present invention is complete
Portion's implementation acts on and is only to provide the mode for understanding that the content of present invention is more simple and clear for auditor and the public, and
It is not the limitation to technical solution of the present invention.Without departing from the inventive concept of the premise, all ordinary skills
Personnel do not make creative work with regard to thinkable other embodiment, and the simple replacement of other pairs of technical solution of the present invention
And various change, belong to protection scope of the present invention.
A kind of embodiment 1: method of the modified preparation miscellaneous Polar Collectors of low order coal slime of hydrocarbon-type oil.Raw material is prepared as conventional bavin
Oil, plasma reactor CTP-2000K generate low-temperature plasma using dielectric barrier discharge reaction kettle at normal temperatures and pressures
Body.Preparation process are as follows:
1. diesel oil is fed reaction of low temperature plasma chamber, liquid level is lower than air inlet；
2. being placed in HY-4 after air inlet is blocked adjusts the speed multi-purpose oscillator 5min；
3. reaction of low temperature plasma chamber is fixed between double media of plasma reactor, air inlet is opened；
4. opening air pump and being passed through flow is 30L/ (min.m by air circuit connection in the inlet gas of reaction chamber2) air；
5. opening reaction of low temperature plasma device, adjusting output power is 100W, operating current 2-3A, generates Cryogenic air
Plasma；
Low temperature atomsphere plasma reactor is closed after 6.9min and stops ventilating；
After 7.2min, reaction product is taken out from reaction kettle, that is, is prepared into miscellaneous Polar Collectors.
Collector dosage be 20kg/t, foaming agent 2# oil dosage 3kg/t, feed thickness 50g/l, mixing time 2min,
Under conditions of flotation.It compared collecting agent made from embodiment 1 and conventional collecting agent flotation infrared ray light shine jet coal coal slime
Flotation effect.
Miscellaneous Polar Collectors flotation results are made in 1 present invention of table
Show that miscellaneous Polar Collectors produced by the present invention under the conditions of same amount, clean coal yield reach shown in table 1
79.67% cleans ash is 6.57%, hence it is evident that better than common diesel clean coal yield 31.95%, the finger that cleans ash is 7.39%
Mark.Clean coal yield improves nearly 50 percentage points, and ash content reduces nearly 1 percentage point.
A kind of embodiment 2: method of the modified preparation miscellaneous Polar Collectors of low order coal slime of hydrocarbon-type oil.Raw material is prepared as conventional coal
Oil, plasma reactor CTP-2000K generate low-temperature plasma using dielectric barrier discharge reaction kettle at normal temperatures and pressures
Body.Preparation process are as follows:
1. kerosene is fed reaction of low temperature plasma chamber, liquid level is lower than air inlet；
2. being placed in HY-4 after air inlet is blocked adjusts the speed multi-purpose oscillator 5min；
3. reaction of low temperature plasma chamber is fixed between double media of plasma reactor, air inlet is opened；
4. opening air pump and being passed through flow is 30L/ (min.m by air circuit connection in the inlet gas of reaction chamber2) air；
5. opening reaction of low temperature plasma device, adjusting output power is 100W, operating current 2-3A, generates Cryogenic air
Plasma；
Low temperature atomsphere plasma reactor is closed after 6.8min and stops ventilating；
After 7.2min, reaction product is taken out from reaction kettle, that is, is prepared into miscellaneous Polar Collectors.
It is 8kg/t, foaming agent 2# oil dosage 2kg/t, feed thickness 80g/l, mixing time 2min in collector dosage, one
Under conditions of secondary flotation.It compared the flotation of collecting agent made from embodiment 2 and conventional collecting agent flotation northern Shensi dross coal coal slime
Effect.
Miscellaneous Polar Collectors flotation results are made in 2 present invention of table
Show that miscellaneous Polar Collectors produced by the present invention under the conditions of same amount, clean coal yield reach shown in table 2
62.91% cleans ash is 6.23%, hence it is evident that better than the index of conventional kerosene, clean coal yield improves 31 percentage points, ash content
Reduce 1 percentage point.The miscellaneous Polar Collectors of the method for the present invention preparation can effectively improve medicament collecting ability, improve flotation
Clean coal yield.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of method of the modified preparation miscellaneous Polar Collectors of low order coal slime of hydrocarbon-type oil, it is characterised in that: miscellaneous Polar Collectors by
Hydrocarbon-type oil is formed with air reaction, and preparation process is as follows:
A. hydrocarbon-type oil is given to reaction of low temperature plasma chamber；
B. reaction cavity is placed in oscillator, medicament is made to be uniformly distributed in reaction chamber；
C. air is passed through into plasma reactor；
D. start reaction of low temperature plasma device, make hydrocarbon-type oil and air reaction；
E. reaction of low temperature plasma device is closed；
F. stop ventilation, reaction product is taken out from reactor, that is, is prepared into miscellaneous Polar Collectors.
2. a kind of method of the modified preparation miscellaneous Polar Collectors of low order coal slime of hydrocarbon-type oil according to claim 1, feature
Be: plasma reactor used is dielectric barrier discharge principle, including single dielectric barrier discharge and double-dielectric barrier discharge.
3. a kind of method of the modified preparation miscellaneous Polar Collectors of low order coal slime of hydrocarbon-type oil according to claim 1, feature
Be: the reaction gas being passed through is air, and produced plasma is air plasma.
4. a kind of method of the modified preparation miscellaneous Polar Collectors of low order coal slime of hydrocarbon-type oil according to claim 1, feature
Be: in the step c, the aeration quantity of air is 20-50L/ (min.m2)。
5. a kind of method of the modified preparation miscellaneous Polar Collectors of low order coal slime of hydrocarbon-type oil according to claim 1, feature
Be: plasma reactor operating current is 2A-3A, power 100W.
6. a kind of method of the modified preparation miscellaneous Polar Collectors of low order coal slime of hydrocarbon-type oil according to claim 1, feature
Be: the air and hydrocarbon-type oil reaction time is 5-10min.
7. a kind of method of the modified preparation miscellaneous Polar Collectors of low order coal slime of hydrocarbon-type oil according to claim 1, feature
It is: in the step b, reaction cavity is placed in 3-5min in oscillator.
8. a kind of method of the modified preparation miscellaneous Polar Collectors of low order coal slime of hydrocarbon-type oil according to claim 1, feature
Be: preparing environment is normal temperature and pressure.
9. a kind of method of the modified preparation miscellaneous Polar Collectors of low order coal slime of hydrocarbon-type oil according to claim 1, feature
Be: the plasma reactor is CTP-2000K.
10. a kind of method of the modified preparation miscellaneous Polar Collectors of low order coal slime of hydrocarbon-type oil according to claim 1, special
Sign is: air dosage required for unit mass, unit time hydrocarbon-type oil is 30-100ml/(ml min).
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| CN109174464B (en) * | 2018-08-21 | 2020-02-28 | 中国矿业大学 | Collecting agent for flotation of non-sticky coal slime and flotation method |
| CN113522182A (en) * | 2021-07-20 | 2021-10-22 | 中国矿业大学 | Preparation method of used oil collecting agent for low-rank coal flotation |
| CN114769007A (en) * | 2022-03-08 | 2022-07-22 | 中国矿业大学 | Method for preparing low-rank coal flotation reagent through compounding and modification |
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| JP2014188428A (en) * | 2013-03-27 | 2014-10-06 | Kyushu Univ | Method for separating copper and molybdenum |
| CN106699951A (en) * | 2017-01-10 | 2017-05-24 | 中国矿业大学 | Nano-particle collecting agent for low-rank coal floatation and preparation method |
| CN106799310A (en) * | 2017-02-06 | 2017-06-06 | 中国矿业大学 | A kind of low-order coal coal slime flotation collector and its application |
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| CN107362909A (en) * | 2017-08-10 | 2017-11-21 | 江苏师范大学 | A kind of new low order/oxidized coal flotation collector |
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|---|---|---|---|---|
| JP2014188428A (en) * | 2013-03-27 | 2014-10-06 | Kyushu Univ | Method for separating copper and molybdenum |
| CN106699951A (en) * | 2017-01-10 | 2017-05-24 | 中国矿业大学 | Nano-particle collecting agent for low-rank coal floatation and preparation method |
| CN106799310A (en) * | 2017-02-06 | 2017-06-06 | 中国矿业大学 | A kind of low-order coal coal slime flotation collector and its application |
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Granted publication date: 20190507 |