CN109201343A - A kind of low-order coal coal slime flotation collector and preparation method thereof compounding sour ether ketone - Google Patents

A kind of low-order coal coal slime flotation collector and preparation method thereof compounding sour ether ketone Download PDF

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CN109201343A
CN109201343A CN201810952823.2A CN201810952823A CN109201343A CN 109201343 A CN109201343 A CN 109201343A CN 201810952823 A CN201810952823 A CN 201810952823A CN 109201343 A CN109201343 A CN 109201343A
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coal
ether
ketone
low
flotation
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CN109201343B (en
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王伟
宋文革
陶亚东
郭爱军
陈建军
王振龙
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China Shenhua Energy Co Ltd
Shenhua Shendong Coal Group Co Ltd
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China Shenhua Energy Co Ltd
Shenhua Shendong Coal Group Co Ltd
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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
    • B03D1/004—Organic compounds
    • B03D1/008—Organic compounds containing oxygen
    • 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

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Abstract

The present invention provides a kind of low-order coal coal slime flotation collector and preparation method thereof for compounding sour ether ketone, and according to mass percent meter, the collecting agent includes: C10‑C16Hydrocarbon-type oil 60-85%；C6‑C8Sour 5-15%；C5‑C10Ketone 5-15%；C4‑C10Ether 5-15%.Collecting agent ingredient provided by the invention is simple, can be obtained using a small amount of composite reagent, and can be used for conventional low-order coal coal slime flotation technology, and reagent consumption is small, and flotation is at low cost, and the efficiency of separation is high, remarkable in economical benefits.

Description

A kind of low-order coal coal slime flotation collector and preparation method thereof compounding sour ether ketone
Technical field
The present invention relates to coal slime flotation technical fields, and in particular to a kind of low-order coal coal slime flotation collector and its preparation side Method and application.
Background technique
Low-order coal is the lower coal of degree of metamorphism, includes mainly lignite, jet coal, weakly caking coal, dross coal etc., accounts for China 50% or more coal reserves.Wherein -0.5mm Bed for Fine Coal is known as low-order coal coal slime, poor, fine size, specific surface area with hydrophobicity The outstanding features such as big.Widest method of the flotation as graded shot mineral can effectively realize the drop ash upgrading of fine slime, Improve its utility value.But conventional collecting agent (such as diesel oil, kerosene) for there are the medicine consumptions high, flotation of low-order coal coal slime flotation at The problems such as this is high causes low order coal slime to be difficult to realize economy, efficient separation.Therefore largely without the low-order coal coal of sorting upgrading Mud selection incorporation fine cleaned coal is sorted, and results in the decline of thermal coal product quality, Air-pollution From Combustion is serious；And for high in part Grey low order coal slime (ash content > 40%), is dropped since utility value is extremely low to spoil, and there is spontaneous combustions and fugitive dust to endanger.It is low Rank coal coal slime causes coal slime outlet unsmooth, becomes and restrict coal in China cleaning due to lacking the grey upgrading means of economical and effective drop The critical issue efficiently utilized.
For low-order coal coal slime since surface oxygen functional group is more, the hydration shell for forming its surface is thicker, and conventional collecting agent is difficult To significantly improve its surface hydrophobic in surface spreading, generally require to increase collector dosage to improve its rate of recovery.Flotation point From in, when using diesel oil as collecting agent, for ton coal slime consumption in 8kg/t or more, some is even as high as 50kg/t, expensive medicament at Originally making low order coal flotation have no economy can say.Chinese patent application ZL201110195118.0 discloses a kind of coal depth Purification system and method, by unconventional flotation technology --- oil vacuole flotation is used for low-order coal slime separation, has succeeded in doing low Medicine consumption sorts low-order coal coal slime.This method is because there are medicaments to heat link, there are certain security risk, it is made to be difficult to promote and answer With.Therefore high, at high cost for low-order coal coal slime flotation conventional dose medicine consumption, the status of unconventional method for floating operability difference, The special efficient medicament suitable for conventional flotation is developed according to low-order coal Slime Characteristics, not only contributes to realize China's thermal coal Coal slime flotation upgrading and coal resources high-efficiency cleaning utilize, while looking forward to economic efficacy meaning weight to reducing pollution that caused by coal burning, improving coal Greatly.
Application No. is 201710067078 patents to disclose a kind of low-order coal coal slime flotation collector and its application, catches Receiving agent includes hydrocarbon-type oil and promotor, hydrocarbon-type oil C10-C16Hydrocarbon-type oil 60-75%；The promotor is C6-C8Sour 8-15%, C10-C18Ester 4-8%, C5-C7Ketone 6-12% and C5-C9Aldehyde 7-13%.The collecting agent is used for low-order coal coal slime flotation, reagent consumption Small, the efficiency of separation is high.But it still remains component more, complicated component, cause ore-dressing practice waste component complicated, poisonous and harmful Ingredient increases, and not only causes industry cost to improve, also easily endangers ecological environment.
Summary of the invention
In view of this, the present invention provides a kind of low-order coal coal slime flotation collector for compounding sour ether ketone, the collecting agent ingredient Simply, it can be obtained using a small amount of composite reagent, and can be used for conventional low-order coal coal slime flotation technology, reagent consumption Small, flotation is at low cost, and the efficiency of separation is high, remarkable in economical benefits.
The present invention be reach its purpose, the technical solution adopted is as follows:
First aspect present invention provides a kind of low-order coal coal slime flotation collector for compounding sour ether ketone, which is characterized in that presses According to mass percent meter, the collecting agent includes:
C10-C16Hydrocarbon-type oil 60-85%；
C6-C8Sour 5-15%；
C5-C10Ketone 5-15%；
C4-C10Ether 5-15%.
Collecting agent of the invention, only adds C10-C16Hydrocarbon-type oil, C6-C8Acid, C5-C10Ketone and C4-C10Ether can be fitted For the low-order coal collecting agent of conventional flotation method, component is simple, and it is complicated and toxic have to avoid in floatation process waste component The drawbacks such as more than evil ingredient, reduce the harm to ecological environment, and reduce cost.The simple collecting agent of this ingredient is used simultaneously, Excellent flotation effect can be reached in less reagent consumption.
In a kind of preferred embodiment, according to mass percent meter, the collecting agent includes: C10-C16Hydrocarbon-type oil 70-80%, example Such as 70%, 73%, 75%, 78%, 80%, preferably 75-80%；C6-C8Sour 7-12%, such as 7%, 9%, 10%, 12% Deng；C5-C10Ketone 5-8%, such as 5%, 6%, 7%, 8% etc.；C4-C10Ether 8-10%, such as 8%, 9%, 10% etc..Using this The collecting agent of optimum ratio, when being used for flotation low-order coal coal slime, under lower dosing, the yield of gained flotation concentrate Height reaches 60% or more, even up to 65-85%, and the combustible recovery of concentrate is high, reachable 83% or more, even up to 85- 95%.
In a kind of preferred embodiment, the coal slime flotation collector includes each component of following mass percent: C10- C16Hydrocarbon-type oil accounts for 70%, the C6-C8Acid accounts for 12%, the C5-C10Ketone accounts for 8%, the C4-C10Ether accounts for 10%.
In a kind of preferred embodiment, C10-C16Hydrocarbon-type oil accounts for 80%, the C6-C8Acid accounts for 7%, the C5-C10Ketone accounts for 5%, the C4-C10Ether accounts for 8%；
In a kind of preferred embodiment, C10-C16Hydrocarbon-type oil accounts for 75%, the C6-C8Acid accounts for 10%, the C5-C10Ketone 7% is accounted for, the C4-C10Ether accounts for 8%.
C10-C16Hydrocarbon-type oil for example can be C10、C11、C12、C13、C14、C15、C16Any one in hydrocarbon-type oil or two kinds Above combination；Preferably, the hydrocarbon-type oil is selected from least one of diesel oil or kerosene.
C6-C8Acid for example can be C6、C7、C8Any one in acid or two or more combinations；Preferably, the acid packet Include at least one of at least one of caprylic acid or its homologue, more preferable caprylic acid, n-caproic acid.
C5-C10Ketone for example can be C5、C6、C7、C8、C9、C10Any one in ketone or two or more combinations；It is preferred that , the ketone includes at least one of diisobutyl ketone or its homologue.
C4-C10Ether for example can be C4、C5、C6、C7、C8、C9、C10Any one in ether or two or more combinations；It is excellent Choosing, the ether includes at least one of n-amylether or its homologue, preferably as in n-amylether, n-butyl ether or octyl ether extremely Few one kind, at least one of more preferable n-amylether, n-butyl ether can achieve more preferably flotation effect, mentioned using preferred ether The combustible recovery of high flotation concentrate yield and concentrate.
In a kind of preferred version, in collecting agent of the invention, the hydrocarbon-type oil is diesel oil and/or kerosene, and the acid is positive Octanoic acid, at least one of n-caproic acid, the ketone are at least one of diisobutyl ketone or its homologue, and the ether is positive penta At least one of ether, n-butyl ether.Using the collecting agent of these group of subassembly, more preferably flotation effect can get, reduce medicine consumption Amount improves the combustible recovery of flotation concentrate yield and concentrate.These more preferable components account for 70-80% according to hydrocarbon-type oil, excellent It is selected as 75-80%, acid accounts for 7-12%, and ketone accounts for 5-8%, and ether accounts for the proportions of 8-10%, can obtain more under lower medicine consumption Excellent flotation effect.The ton coal slime consumption of collecting agent can be 0.5-2.8kg/t.
Second aspect of the present invention provides the preparation side of the low-order coal coal slime flotation collector of the sour ether ketone of compounding described above Method includes the following steps: the hydrocarbon-type oil and acid, ketone, ether after mixing, to obtain the collecting agent；Preferably, in hydro carbons Acid, ketone and ether are added in oil, stirs 15min or more, preferably 15-25min obtains the collecting agent.
Third aspect present invention provides collecting agent made from collecting agent described above or preparation method described above and exists Application in coal slime flotation, flotation collector of the invention are used for low-order coal coal slime flotation, and reagent consumption is small, flotation is at low cost, The efficiency of separation is high, and remarkable in economical benefits, the yield of flotation concentrate reaches 60% or more, more can reach 65-85%, concentrate it is flammable The body rate of recovery more can reach 85-95% up to 83% or more.Specifically, flotation mainly includes the following steps:
Coal slime is configured to flotation pulp, the collecting agent and foaming agent are added thereto, feeds floatation equipment after stirring In sorted, obtain flotation concentrate and flotation tailing；
Preferably, the concentration of the flotation pulp is 60-100g/L, such as 60,70,80,90,100g/L；
Preferably, the ton coal slime consumption of the collecting agent is 0.5-2.8kg/t, for example, 0.5kg/t, 1.5kg/t, 1.9kg/t, 2.0kg/t, 2.5kg/t, 2.8kg/t etc., preferably 1.5-2.8kg/t, more preferably, cleaned coal is flammable, and body returns flotation effect Yield and concentrate yield are higher.The ton coal slime consumption of foaming agent is 0.1-0.5kg/t, for example, 0.1kg/t, 0.2kg/t, 0.4kg/t, 0.5kg/t etc..
Preferably, the foaming agent includes at least one of sec-octyl alcohol or fusel.
Low-order coal of the present invention refers to: the lower coal of degree of metamorphism, mainly include lignite, jet coal, weakly caking coal, Dross coal etc..
Technical solution provided by the invention has the following beneficial effects:
The present invention a small amount of C of addition in conventional dose (non-polar hydrocarbon oil)4-C10Ethers organic matter especially n-amylether or Its homologue and/or n-butyl ether make promotor, with C6-C8Acid and C5-C10Ketone is used as promotor together, not only can be with low-order coal coal The oxygen-containing functional group on mud surface acts on, and effectively covers coal slime surface polar groups, significantly improves coal slime surface hydrophobic；Pole simultaneously Property oxygen-containing group it is adsorbable to gas-liquid interface, facilitating hydrocarbon-type oil is adsorbed on bubble surface, formed stablize, hydrophobicity it is stronger " oil vacuole ".Under the dual modified effect of coal grain and bubble surface, low-order coal coal slime flotation mineralization process is enhanced, is enhanced thin Aqueous coal grain and bubble adhesion probability reduce medicine consumption to significantly improve flotation efficiency.By using comprising ethers promotor with Hydrocarbon-type oil proportion, the surface for realizing the peculiar surface oxygen functional group of low-order coal coal slime and hole is modified, and has obtained practical floating Experimental study is selected to verify.
Flotation collector of the present invention passes through in coal slime ore pulp and the present invention is added by the method for floating of the simple flotation of tradition Collecting agent, the short time stirring after in screening installation complete economical and efficient sorting；It is caught compared to existing low-order coal coal slime flotation Agent is received, not only simplifies floatation process, while reducing production cost.
Collectors application of the invention is in low-order coal coal slime flotation, and not only it is high to consume the low and efficiency of separation for medicine.Using the present invention Medicament as low-order coal coal slime flotation collector, ton coal slime flotation reagent consumption is between 0.5-2.8kg/t, flotation is flammable body The rate of recovery compounds collecting agent consumption up to 83% or more, better than existing low-order coal coal slime flotation, further reduced the medicine of flotation Agent cost.
Collecting agent medicament of the invention is from a wealth of sources, is easy to get.This medicament main component is hydrocarbon-type oil, is common in coal chemical industry pair Product, it is cheap and from a wealth of sources, and the promotor added is common chemical products, trade market is mature, is fast easy to get.
Collecting agent of the invention can also solve promotor ingredient used in low-order coal coal slime flotation collector in the prior art Complexity, the technical problems such as beneficiation wastewater processing cost height.
Specific embodiment
For a better understanding of the technical solution of the present invention, below with reference to the embodiment content that the present invention is further explained, But the contents of the present invention are not limited only to following embodiment.
In following embodiments, the information of material therefor and equipment is as shown in table 1 below:
1 material of table or facility information table
Embodiment 1
Characteristics of coal slime: the coal sample derives from Shenhua Zhun Nengheidai ditch coal preparation plant high alumina jet coal, and ash is high in coal slime, pan feeding coal Plaster point 37%.Coal sample size is thinner, and -0.074mm grade coal slime accounts for coal sample 60%.
Operating condition: 1.5L XFD type hanging trough flotator is used, the speed of mainshaft is 2000rpm.120g delivering dry coal slurry is weighed to fall Enter to fill and be configured in the flotation cell of tap water flotation pulp (pulp density 80g/L), collecting agent is added and stirs 3min, is added After infusion sec-octyl alcohol stirs 30s, it is passed through gas (aeration quantity 0.25m3/ h) after scrape bubble 3min, the foam scraped and slot bottom Residue is floatation clean coal and floating tail-coal, filters, dries and weighs respectively, product combustible recovery is calculated.This Invention medicament and the flotation comparing result of common collecting agent diesel oil are as shown in table 2.
Embodiment 1-1
In embodiment 1-1, as mass fraction, flotation collector proportion is diesel oil 70%, caprylic acid 12%, diisobutyl Ketone 8%, n-amylether 10%.Preparation process is as follows: by diesel oil, caprylic acid, after diisobutyl ketone and n-amylether mix in proportion, with The speed of 1000rpm stirs 15min, obtains the flotation collector.
Embodiment 1-2
Embodiment 1-2 is similar with embodiment 1-1, and difference is only that, collecting agent proportion are as follows: diesel oil 60%, caprylic acid 15%, Diisobutyl ketone 10%, n-amylether 15%.
Embodiment 1-3
Embodiment 1-3 is similar with embodiment 1-1, and difference is only that, collecting agent proportion are as follows: diesel oil 80%, n-caproic acid 7%, Diisobutyl ketone 5%, n-butyl ether 8%.
Embodiment 1-4
Embodiment 1-4 is similar with embodiment 1-1, and difference is only that, collecting agent proportion are as follows: diesel oil 75%, caprylic acid 10%, Diisobutyl ketone 7%, n-butyl ether 8%.
Embodiment 1-5
Embodiment 1-5 is similar with embodiment 1-1, and difference is only that, collecting agent proportion are as follows: diesel oil 75%, caprylic acid 10%, Diisobutyl ketone 7%, octyl ether 8%.
Embodiment 1-6
Embodiment 1-6 is similar with embodiment 1-1, and difference is only that, collecting agent proportion are as follows: diesel oil 75%, caprylic acid 10%, Diisobutyl ketone 7%, ether 8%.
Embodiment 1-7
Embodiment 1-7 is similar with embodiment 1-1, and difference is only that, collecting agent proportion are as follows: diesel oil 75%, caprylic acid 10%, Diisobutyl ketone 7%, water 8%.
Wherein, ash content detection instrument is ash content Determination of Volatile Matter instrument, Xuzhou Wei Ke Science and Technology Ltd. of producer, model CTM300。
Pan feeding coal slime ash content refers to flotation raw coal pan feeding dry basis ash content.
The flammable rate of recovery of cleaned coal is according to the regulation of " coal can flotation assessment method " (MT259-91), and calculation formula is such as Under:
In formula: EcIt is floatation clean coal combustible recovery, %；rcIt is floatation clean coal yield, %；Ad,cIt is floatation clean coal butt Ash content, %；Ad,fIt is floatation feed dry basis ash content, %.
2 embodiment of table, 1 collecting agent and ordinary diesel oil floatation indicators comparison (high alumina jet coal)
As shown in Table 2, in 1.9kg/t, cleaned coal combustible recovery reaches the present embodiment 1-1 collecting agent consumption 83.54%, cleans ash 14.45%, floatation indicators are substantially better than index when diesel consumption is 9kg/t, flammable body recycling Rate 77.06%, cleans ash 15.37%.The present embodiment 1-1 collecting agent consumption in 1.9kg/t with the present embodiment 1-3 and 1-4 Collecting agent consumption flotation effect in 1.9kg/t is suitable.For the present embodiment 1-1 collecting agent consumption in 2.8kg/t, cleaned coal is flammable The body rate of recovery is up to 92.55%, and cleans ash 14.99%, flotation effect is further promoted.It compares the present embodiment 1-4 and implements Example 1-5,1-6 and 1-7 discovery, collecting agent prescription of the present invention use C4-C10Ether can be effectively improved low-order coal coal slime flotation.
Embodiment 2:
Characteristics of coal slime: the coal sample derives from Shenmu County's weakly caking coal, pan feeding coal slime ash content 30%.- 0.074mm grade coal slime accounts for coal Sample 65%.
Operating condition: 1.5L XFD type hanging trough flotator is used, the speed of mainshaft is 2000rpm.120g delivering dry coal slurry is weighed to fall Enter to fill and be configured in the flotation cell of tap water flotation pulp (pulp density 80g/L), collecting agent is added and stirs 3min, is added After infusion sec-octyl alcohol stirs 30s, it is passed through gas (aeration quantity 0.25m3/ h) after scrape bubble 3min, the foam scraped and slot bottom Residue is floatation clean coal and floating tail-coal, filters, dries and weighs respectively, product combustible recovery is calculated.This Invention medicament and the flotation comparing result of common collecting agent diesel oil are as shown in table 3.
Wherein, in embodiment 2, as mass fraction, flotation collector proportion is diesel oil 80%, n-caproic acid 7%, two isobutyls Base ketone 5%, n-butyl ether 8%.Preparation process is as follows: by diesel oil, n-caproic acid, after diisobutyl ketone and n-butyl ether mix in proportion, 25min is stirred with the speed of 1000rpm, obtains the flotation collector.
3 embodiment of table, 2 collecting agent and common collecting agent diesel oil floatation indicators comparison (Shenmu County's weakly caking coal)
As shown in Table 3, for 2 collecting agent consumption of embodiment in 1.5kg/t, cleaned coal combustible recovery is smart up to 88.37% Coal ash is divided into 10.31%, and floatation indicators are substantially better than index when diesel consumption is 7.0kg/t, combustible recovery 83.82%, cleans ash 11.78%.In 0.5kg/t, cleaned coal combustible recovery reaches 2 collecting agent consumption of embodiment 84.01%, cleans ash 10.12%, when floatation indicators and diesel consumption are 7.0kg/t, effect is suitable.
Embodiment 3:
Characteristics of coal slime: from the eastern jet coal of mind, pan feeding coal slime ash content 13%, -0.074mm grade accounts for 70%.
Operating condition: 1.5L XFD type hanging trough flotator is used, the speed of mainshaft is 2000rpm.120g delivering dry coal slurry is weighed to fall Enter to fill and be configured in the flotation cell of tap water flotation pulp (pulp density 80g/L), collecting agent is added and stirs 3min, is added After infusion sec-octyl alcohol stirs 30s, it is passed through gas (aeration quantity 0.25m3/ h) after scrape bubble 3min, the foam scraped and slot bottom Residue is floatation clean coal and floating tail-coal, filters, dries and weighs respectively, product combustible recovery is calculated.This Invention medicament and the flotation comparing result of common collecting agent diesel oil are as shown in table 4.
Wherein, in embodiment 3, as mass fraction, flotation collector proportion is diesel oil 75%, and caprylic acid 10%, two is different Butyl ketone 7%, n-butyl ether 8%.Preparation process is as follows: by diesel oil, caprylic acid, diisobutyl ketone and n-butyl ether mix in proportion Afterwards, 20min is stirred with the speed of 1000rpm, obtains the flotation collector.
4 embodiment of table, 3 collecting agent and common collecting agent diesel oil floatation indicators comparison (mind east jet coal)
As shown in Table 4, for 3 collecting agent consumption of embodiment in 2.0kg/t, cleaned coal combustible recovery is smart up to 87.34% Coal ash is divided into 5.03%, and floatation indicators are substantially better than index when diesel consumption is 10.0kg/t, combustible recovery 72.87%, Cleans ash 5.74%.Medicament of the present invention may be implemented in the efficient separation of low-order coal coal slime under low consumption amount.
To sum up, collecting agent component of the present invention is few, and flotation efficiency is high, solves existing medicament medicine consumption height, cost Height, the problem of unconventional method for floating operability difference, reduces costs simultaneously, looks forward to economic effect to reducing pollution that caused by coal burning, improving coal Can be significant, it is with a wide range of applications.
It will be understood by those skilled in the art that under the introduction of this specification, the present invention can be made some modifications or Adjustment.These modifications or adjustment should also be as within the scope of the claims in the present invention.

Claims (10)

1. a kind of low-order coal coal slime flotation collector for compounding sour ether ketone, which is characterized in that described to catch according to mass percent meter Receiving agent includes:
C10-C16Hydrocarbon-type oil 60-85%；
C6-C8Sour 5-15%；
C5-C10Ketone 5-15%；
C4-C10Ether 5-15%.
2. low-order coal coal slime flotation collector according to claim 1, which is characterized in that according to mass percent meter, institute Stating collecting agent includes:
C10-C16Hydrocarbon-type oil 70-80%, preferably 75-80%,
C6-C8Sour 7-12%；
C5-C10Ketone 5-8%；
C4-C10Ether 8-10%.
3. low-order coal coal slime flotation collector according to claim 1, which is characterized in that the coal slime flotation collector packet Include each component of following mass percent: C10-C16Hydrocarbon-type oil accounts for 70%, the C6-C8Acid accounts for 12%, the C5-C10Ketone accounts for 8%, the C4-C10Ether accounts for 10%；
Alternatively, C10-C16Hydrocarbon-type oil accounts for 80%, the C6-C8Acid accounts for 7%, the C5-C10Ketone accounts for 5%, the C4-C10Ether accounts for 8%；
Alternatively, C10-C16Hydrocarbon-type oil accounts for 75%, the C6-C8Acid accounts for 10%, the C5-C10Ketone accounts for 7%, the C4-C10Ether accounts for 8%.
4. low-order coal coal slime flotation collector according to claim 1-3, which is characterized in that the hydrocarbon-type oil choosing From at least one of diesel oil or kerosene.
5. low-order coal coal slime flotation collector according to claim 1-3, which is characterized in that the acid includes just Octanoic acid or its homologue, preferably at least one of caprylic acid and n-caproic acid.
6. low-order coal coal slime flotation collector according to claim 1-3, which is characterized in that the ketone includes two At least one of isobutyl ketone or its homologue.
7. low-order coal coal slime flotation collector according to claim 1-3, which is characterized in that the ether includes just At least one of at least one of amyl ether or its homologue, preferably n-amylether, n-butyl ether or octyl ether, are more preferably positive At least one of amyl ether and n-butyl ether.
8. low-order coal coal slime flotation collector according to claim 1-3, which is characterized in that the C10-C16Hydrocarbon Class oil is diesel oil and/or kerosene, the C6-C8Acid is at least one of caprylic acid or n-caproic acid, the C5-C10Ketone is two different At least one of butyl ketone or its homologue, the C4-C10Ether is at least one of n-amylether or n-butyl ether.
9. the preparation method of the described in any item low-order coal coal slime flotation collectors for compounding sour ether ketone of claim 1-8, special Sign is, includes the following steps: after mixing the hydrocarbon-type oil and acid, ketone, ether, obtains the collecting agent；
Preferably, acid, ketone and ether are added in hydrocarbon-type oil, stirs 15min or more, preferably 15-25min obtains the collecting agent.
10. collecting agent made from the described in any item collecting agents of claim 1-8 or preparation method as claimed in claim 9 is in coal Application in mud flotation, which comprises the steps of:
Coal slime is configured to flotation pulp, the collecting agent and foaming agent are added thereto, fed after stirring in floatation equipment into Row sorting, obtains flotation concentrate and flotation tailing；
Preferably, the concentration of the flotation pulp is 60-100g/L；
Preferably, the ton coal slime consumption of the collecting agent is 0.5-2.8kg/t, and the ton coal slime consumption of foaming agent is 0.1-0.5kg/ t；
Preferably, the foaming agent includes at least one of sec-octyl alcohol or fusel.
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5217604A (en) * 1991-03-28 1993-06-08 Fospur Limited Froth flotation of fine particles
CN101428253A (en) * 2008-11-03 2009-05-13 吉海峰 Coal flotation agent and production method thereof
CN101722111A (en) * 2010-01-11 2010-06-09 山西医科大学 Coal slime flotation collector and preparation method thereof
CN101898171A (en) * 2009-06-01 2010-12-01 李艺 Compound coal flotation agent
CN103909021A (en) * 2014-04-04 2014-07-09 青岛科技大学 Microemulsion composite floatation agent for coal dressing and preparation method
CN103962245A (en) * 2014-05-21 2014-08-06 安徽理工大学 Composite coal-dressing flotation reagent and preparation method thereof
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

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5217604A (en) * 1991-03-28 1993-06-08 Fospur Limited Froth flotation of fine particles
CN101428253A (en) * 2008-11-03 2009-05-13 吉海峰 Coal flotation agent and production method thereof
CN101898171A (en) * 2009-06-01 2010-12-01 李艺 Compound coal flotation agent
CN101722111A (en) * 2010-01-11 2010-06-09 山西医科大学 Coal slime flotation collector and preparation method thereof
CN103909021A (en) * 2014-04-04 2014-07-09 青岛科技大学 Microemulsion composite floatation agent for coal dressing and preparation method
CN103962245A (en) * 2014-05-21 2014-08-06 安徽理工大学 Composite coal-dressing flotation reagent and preparation method thereof
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

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
葛岭: "《洁净煤技术概论》", 31 December 1997 *
马壮等: "非离子表面活性剂对氧化煤吸附及浮选行为的影响", 《煤炭转化》 *

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