CN107597446A - A kind of coal slime collecting agent - Google Patents
A kind of coal slime collecting agent Download PDFInfo
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- CN107597446A CN107597446A CN201710774570.XA CN201710774570A CN107597446A CN 107597446 A CN107597446 A CN 107597446A CN 201710774570 A CN201710774570 A CN 201710774570A CN 107597446 A CN107597446 A CN 107597446A
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Abstract
The present invention relates to a kind of coal slime collecting agent, belong to colliery field of material technology.The present invention prepares matrix diesel oil by waste grease and is used as main body, stable collecting agent is formed after surfactant is compound, when combination medicament enters coal slurry, surfactant and extract solution and the nonpolar position on coal grain surface are adsorbed, biodiesel and the polar fraction of coal grain adsorb, it is changed into script hydrophilic site hydrophobic, so as to improve whole coal grain floatability, improves the flotation efficiency of material；The present invention to discarded tealeaf residue by extracting; collect Tea Saponin and be dispersed in collecting agent material internal; again by making calcium chloride be loaded with coal grain surface; improve the stability of collecting agent at different temperatures; scattered Tea Saponin is wrapped up and adsorbed to coal grain simultaneously, makes while coal grain surface forms coating film, when bubble mineralization floats; flotation efficiency can further be improved because sticking the phenomenon loosely to come off by improving coal grain under external force.
Description
Technical field
The present invention relates to a kind of coal slime collecting agent, belong to colliery field of material technology.
Background technology
Flotation is current graded shot coal slime most efficient method, and its essence is strengthen dredging for coal grain surface by collecting agent
It is water-based, it can be firmly adhered on bubble, realization separates with hydrophilic spoil.Collector dosage is usually in floatation process
5~10 times of foaming agent, for Bed for Fine Coal content is more and the coking coal of low metamorphic grade, its floatability and selectivity are worse, float
Select medicine consumption bigger.The collecting agent that domestic and international coal preparation plant uses is mostly kerosene and light diesel fuel, and this 2 kinds of collecting agents come from oil more
Crack product.International Crude Oil, which goes up, causes kerosene and diesel-fuel price to go up, and floating agent expense rises, and coal separation cost increases
Add.The new and effective coal of active development is extremely urgent with collecting agent.
Emulsification is a kind of mode that can be effectively improved hydrocarbon ils dispersiveness, by external force and can add emulsifying agent by hydrocarbon ils
Evenly spread in water, be substantially reduced droplet diameter.Although emulsification collecting agent is all achieved by coal slime flotation experiment makes us full
The effect of meaning, it should be noted that is applied at present in coal preparation plant's actual production is few, this is mainly due to using biography
The emulsification collecting agent of emulsifying manner configuration of system is thermodynamic unstable system, therefore stability is not high, easily layering, and easily
Influenceed by environmental factors such as temperature, impurity, resting period length can cause to be demulsified, and the flotation effect of the emulsification collecting agent after being demulsified
Fruit will substantially reduce, and then influence Floating Production Process, so preparing the collecting agent that a kind of stabilization is deposited and flotation effect is excellent
It is necessary.
The content of the invention
The technical problems to be solved by the invention：It is not high for existing coal slime collecting agent stability, easily layering, and
Easily influenceed by environmental factors such as temperature, impurity, resting period length can cause to be demulsified, and the flotation of the emulsification collecting agent after being demulsified
A kind of the defects of effect will be reduced substantially, there is provided coal slime collecting agent.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of coal slime collecting agent, mainly there is following parts by weight material composition：
45~50 parts of matrix diesel oil, 10~15 parts of concentration filtrates, 6~8 parts of calcium chloride solutions of mass fraction 15%, 3~5 parts of Zhong Xin
Alcohol and 5~8 parts of surfactants, described concentration filtrate preparation process are：
（1）Discarded tealeaf residue is cleaned with clear water, vacuum freeze drying and sieving of milling, obtains tealeaf residue powder；
（2）In mass ratio 1:10, tealeaf residue powder is mixed to simultaneously heating water bath with absolute ethyl alcohol and stirring, filtrate must be extracted by filtering,
Extraction filtrate is placed in rotation at 65~70 DEG C and is evaporated to the 1/8 of filtrate original volume, filtrate must be concentrated.
Described matrix diesel oil preparation process is：
（1）In mass ratio 1:10, it is that 10.0 heavy salinized soil are stirred with deionized water by pH, is aged after being stirred, mistake
Filter to obtain filtrate；
（2）In mass ratio 1:5,100 mesh Zirconium oxide powders are added in filtrate, it is dry to collect dried object and calcination process,
Ball milling sieves, and obtains ball-milled powder；
（3）Take waste cooking oil and centrifuge, collect and supernatant and count in parts by weight, respectively 45~50 portions of supernatants of weighing,
10~15 parts of ball-milled powders and 35~40 parts of methanol are stirred and heating water bath, and filtrate must be reacted by filtering；
（4）By filtrate rotary evaporation, stratification simultaneously collects upper liquid, obtains matrix diesel oil.
Described surfactant is neopelex, sodium cetanesulfonate and cetyl trimethyl bromination
Any one in ammonium.
Step（2）Described calcination process is in 150~180 DEG C of 45~60min of Muffle kiln roasting.
A kind of coal slime collecting agent preparation process is：Count in parts by weight, weigh 45~50 parts of matrix diesel oil, 10~15 respectively
Part concentration filtrate, 6~8 parts of calcium chloride solutions of mass fraction 15%, 3~5 parts of sec-octyl alcohols and 5~8 parts of surfactants are placed in burning
In cup, it is stirred and ultrasonic disperse, after standing and defoaming, you can be prepared into a kind of coal slime collecting agent.
Compared with other method, advantageous effects are the present invention：
（1）The present invention prepares matrix diesel oil by waste grease and is used as main body, and stable catch is formed after surfactant is compound
Agent is received, because coal grain surface charge distribution is uneven, not only contained polar fraction again containing nonpolar position, when combination medicament entrance
During coal slurry, surfactant and extract solution and the nonpolar position on coal grain surface adsorb, biodiesel and the polarity of coal grain
Position is adsorbed, and is changed into script hydrophilic site hydrophobic, so as to improve whole coal grain floatability, improves the flotation effect of material
Rate；
（2）The present invention collects Tea Saponin and is dispersed in collecting agent material internal, then pass through by being extracted to discarded tealeaf residue
The addition of calcium chloride, calcium chloride is loaded with coal grain surface, improve the stability of collecting agent at different temperatures, simultaneously
Scattered Tea Saponin is wrapped up and adsorbed to coal grain, makes while coal grain surface forms coating film, when bubble mineralization floats, change
Kind coal grain under external force can greatly increase output of coal, further improve flotation effect because sticking the phenomenon loosely to come off
Rate.
Embodiment
It is 10.0 heavy salinized soil to take pH, in mass ratio 1:10, itself and deionized water are stirred, stood at room temperature
After being aged 3~5h, filter to get filtrate, in mass ratio 1:5,100 mesh Zirconium oxide powders are added in filtrate, at 100~110 DEG C
Dried in baking oven to constant weight, standing is cooled to room temperature, collect dried object be placed in 150~180 DEG C of Muffle kiln roastings 45~
60min, wait after the completion of being calcined, ball milling crosses 200 mesh sieves, obtains ball-milled powder, takes waste cooking oil and centrifuges, and collects supernatant simultaneously
Count in parts by weight, weigh 45~50 portions of supernatants, 10~15 parts of ball-milled powders and 35~40 parts of methanol respectively and be placed in three mouthfuls of burnings
In bottle, 35~40min of heating water bath at 78~80 DEG C, filtrate must be reacted by filtering, and filtrate is placed in rotate at 55~60 DEG C and steamed
The 1/5 of original volume is sent to, stratification simultaneously collects upper liquid, obtains matrix diesel oil；Discarded tealeaf residue is cleaned with clear water, vacuum is cold
Lyophilized dry and milled 200 mesh sieve, obtains tealeaf residue powder, in mass ratio 1:10, tealeaf residue powder is mixed with absolute ethyl alcohol and stirring
Merging is placed at 65~80 DEG C, and heating water bath simultaneously filters and must extract filtrate, and extraction filtrate is placed in into rotary evaporation at 65~70 DEG C
To the 1/8 of filtrate original volume, filtrate must be concentrated；Count in parts by weight, respectively weigh 45~50 parts of matrix diesel oil, 10~15 parts it is dense
Contracting filtrate, 6~8 parts of calcium chloride solutions of mass fraction 15%, 3~5 parts of sec-octyl alcohols and 5~8 parts of neopelexes are placed in
In beaker, mixing is stirred at room temperature and is placed in 10~15min of ultrasonic disperse under 200~300W, after 3~5h of standing and defoaming, i.e.,
A kind of coal slime collecting agent can be prepared into.
Example 1
It is 10.0 heavy salinized soil to take pH, in mass ratio 1:10, itself and deionized water are stirred, it is still aging at room temperature
After 3h, filter to get filtrate, in mass ratio 1:5,100 mesh Zirconium oxide powders are added in filtrate, dried extremely in 100 DEG C of baking ovens
Constant weight, standing are cooled to room temperature, collect dried object and are placed in 150 DEG C of Muffle kiln roasting 45min, wait after the completion of being calcined, ball milling
200 mesh sieves are crossed, obtain ball-milled powder, waste cooking oil is taken and centrifuges, supernatant is collected and counts in parts by weight, weigh 45 respectively
Part supernatant, 10 parts of ball-milled powders and 35 parts of methanol are placed in three-necked flask, the heating water bath 35min at 78 DEG C, filter instead
Filtrate is answered, filtrate is placed in into rotation at 55 DEG C is evaporated to the 1/5 of original volume, and stratification simultaneously collects upper liquid, obtains matrix diesel oil；
Discarded tealeaf residue is cleaned with clear water, vacuum freeze drying and milled 200 mesh sieve, obtains tealeaf residue powder, in mass ratio 1:10,
Tealeaf residue powder is mixed with absolute ethyl alcohol and stirring and is placed at 65 DEG C, heating water bath simultaneously filters and must extract filtrate, will extraction filter
Liquid is placed in rotation at 65 DEG C and is evaporated to the 1/8 of filtrate original volume, must concentrate filtrate；Count in parts by weight, weigh 45 parts of bases respectively
Body diesel oil, 10 parts of concentration filtrates, 6 parts of calcium chloride solutions of mass fraction 15%, 3 parts of sec-octyl alcohols and 5 parts of neopelexes
It is placed in beaker, mixing is stirred at room temperature and is placed in ultrasonic disperse 10min under 200W, after standing and defoaming 3h, you can be prepared into
A kind of coal slime collecting agent.
Example 2
It is 10.0 heavy salinized soil to take pH, in mass ratio 1:10, itself and deionized water are stirred, it is still aging at room temperature
After 3~5h, filter to get filtrate, in mass ratio 1:5,100 mesh Zirconium oxide powders are added in filtrate, in 100~110 DEG C of baking ovens
Middle drying to constant weight, standing is cooled to room temperature, collects dried object and is placed in 165 DEG C of Muffle kiln roasting 47min, treats that roasting is completed
Afterwards, ball milling crosses 200 mesh sieves, obtains ball-milled powder, takes waste cooking oil and centrifuges, and collects supernatant and counts in parts by weight, point
Also known as measure 47 portions of supernatants, 12 parts of ball-milled powders and 37 parts of methanol to be placed in three-necked flask, the heating water bath 37min at 79 DEG C,
Filtrate must be reacted by filtering, and filtrate is placed in into rotation at 57 DEG C is evaporated to the 1/5 of original volume, and stratification simultaneously collects upper liquid, obtains
Matrix diesel oil；Discarded tealeaf residue is cleaned with clear water, vacuum freeze drying and milled 200 mesh sieve, tealeaf residue powder is obtained, by matter
Measure ratio 1:10, tealeaf residue powder is mixed with absolute ethyl alcohol and stirring and is placed at 73 DEG C, heating water bath simultaneously filters and must extract filtrate,
Extraction filtrate is placed in rotation at 67 DEG C and is evaporated to the 1/8 of filtrate original volume, filtrate must be concentrated；Count, claim respectively in parts by weight
Measure 47 parts of matrix diesel oil, 12 parts of concentration filtrates, 7 parts of calcium chloride solutions of mass fraction 15%, 4 parts of sec-octyl alcohols and 7 parts of dodecyls
Benzene sulfonic acid sodium salt is placed in beaker, and mixing is stirred at room temperature and is placed in ultrasonic disperse 12min under 250W, after standing and defoaming 4h, i.e.,
A kind of coal slime collecting agent can be prepared into.
Example 3
It is 10.0 heavy salinized soil to take pH, in mass ratio 1:10, itself and deionized water are stirred, it is still aging at room temperature
After 5h, filter to get filtrate, in mass ratio 1:5,100 mesh Zirconium oxide powders are added in filtrate, dried extremely in 110 DEG C of baking ovens
Constant weight, standing are cooled to room temperature, collect dried object and are placed in 150~180 DEG C of Muffle kiln roasting 60min, wait after the completion of being calcined,
Ball milling crosses 200 mesh sieves, obtains ball-milled powder, takes waste cooking oil and centrifuges, and collects supernatant and counts in parts by weight, claims respectively
50 portions of supernatants of amount, 15 parts of ball-milled powders and 40 parts of methanol are placed in three-necked flask, the heating water bath 40min at 80 DEG C, filtering
Filtrate must be reacted, filtrate is placed in into rotation at 60 DEG C is evaporated to the 1/5 of original volume, and stratification simultaneously collects upper liquid, obtains matrix
Diesel oil；Discarded tealeaf residue is cleaned with clear water, vacuum freeze drying and milled 200 mesh sieve, obtains tealeaf residue powder, in mass ratio
1:10, tealeaf residue powder is mixed with absolute ethyl alcohol and stirring and is placed at 80 DEG C, heating water bath simultaneously filters and must extract filtrate, will carry
Take filtrate to be placed in rotation at 70 DEG C and be evaporated to the 1/8 of filtrate original volume, filtrate must be concentrated；Count in parts by weight, weigh 50 respectively
Part matrix diesel oil, 15 parts of concentration filtrates, 8 parts of calcium chloride solutions of mass fraction 15%, 5 parts of sec-octyl alcohols and 8 parts of detergent alkylate sulphurs
Sour sodium is placed in beaker, and mixing is stirred at room temperature and is placed in ultrasonic disperse 15min under 300W, after standing and defoaming 5h, you can system
It is standby to obtain a kind of coal slime collecting agent.
Performance comparison is carried out with example 1,2,3 prepared by the present invention and the coal slime collecting agent that Shandong Weifang company produces,
Performance comparison parameter such as following table table 1.
The coal slime collecting agent performance comparison table of table 1
As seen from the above table, the collecting agent that prepared by the present invention has efficient collecting efficiency.
Claims (5)
1. a kind of coal slime collecting agent, it is characterised in that mainly have following parts by weight material composition：
45~50 parts of matrix diesel oil, 10~15 parts of concentration filtrates, 6~8 parts of calcium chloride solutions of mass fraction 15%, 3~5 parts of Zhong Xin
Alcohol and 5~8 parts of surfactants, described concentration filtrate preparation process are：
（1）Discarded tealeaf residue is cleaned with clear water, vacuum freeze drying and sieving of milling, obtains tealeaf residue powder；
（2）In mass ratio 1:10, tealeaf residue powder is mixed to simultaneously heating water bath with absolute ethyl alcohol and stirring, filtrate must be extracted by filtering,
Extraction filtrate is placed in rotation at 65~70 DEG C and is evaporated to the 1/8 of filtrate original volume, filtrate must be concentrated.
A kind of 2. coal slime collecting agent according to claim 1, it is characterised in that：Described matrix diesel oil preparation process is：
（1）In mass ratio 1:10, it is that 10.0 heavy salinized soil are stirred with deionized water by pH, is aged after being stirred, mistake
Filter to obtain filtrate；
（2）In mass ratio 1:5,100 mesh Zirconium oxide powders are added in filtrate, it is dry to collect dried object and calcination process,
Ball milling sieves, and obtains ball-milled powder；
（3）Take waste cooking oil and centrifuge, collect and supernatant and count in parts by weight, respectively 45~50 portions of supernatants of weighing,
10~15 parts of ball-milled powders and 35~40 parts of methanol are stirred and heating water bath, and filtrate must be reacted by filtering；
（4）By filtrate rotary evaporation, stratification simultaneously collects upper liquid, obtains matrix diesel oil.
A kind of 3. coal slime collecting agent according to claim 1, it is characterised in that：Described surfactant is dodecyl
Any one in benzene sulfonic acid sodium salt, sodium cetanesulfonate and cetyl trimethylammonium bromide.
A kind of 4. coal slime collecting agent according to claim 2, it is characterised in that：Step（2）Described calcination process be
150~180 DEG C of 45~60min of Muffle kiln roasting.
5. a kind of coal slime collecting agent according to claims 1 to 4, it is characterised in that preparation process is：Count in parts by weight,
Respectively weigh 45~50 parts of matrix diesel oil, 10~15 parts concentration filtrates, 6~8 parts of calcium chloride solutions of mass fraction 15%, 3~5 parts
Sec-octyl alcohol and 5~8 parts of surfactants are placed in beaker, are stirred and ultrasonic disperse, after standing and defoaming, you can be prepared into one
Kind coal slime collecting agent.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110681493A (en) * | 2019-11-21 | 2020-01-14 | 重庆智诚生物质新材料有限责任公司 | Efficient flotation collector for coal |
| CN111408479A (en) * | 2020-03-30 | 2020-07-14 | 太原理工大学 | Low-rank coal flotation separation method with surface active agent adsorbed first and then desorbed under calcium ion condition |
| CN112973966A (en) * | 2021-03-10 | 2021-06-18 | 青岛鑫润矿业科技有限公司 | Fine mud collecting agent for realizing desliming through flotation and use method thereof |
| CN116590024A (en) * | 2023-07-17 | 2023-08-15 | 山东菲特环保设备有限公司 | Synergistic treatment method for gasified slag, sludge and low-value coal slime |
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| CN112973966A (en) * | 2021-03-10 | 2021-06-18 | 青岛鑫润矿业科技有限公司 | Fine mud collecting agent for realizing desliming through flotation and use method thereof |
| CN116590024A (en) * | 2023-07-17 | 2023-08-15 | 山东菲特环保设备有限公司 | Synergistic treatment method for gasified slag, sludge and low-value coal slime |
| CN116590024B (en) * | 2023-07-17 | 2023-12-08 | 杭州青绿能源有限公司 | Synergistic treatment method for gasified slag, sludge and low-value coal slime |
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