CN109201341A - Compound the low-order coal coal slime flotation collector and its preparation method and application of sour aldehyde ether - Google Patents
Compound the low-order coal coal slime flotation collector and its preparation method and application of sour aldehyde ether Download PDFInfo
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- CN109201341A CN109201341A CN201810952552.0A CN201810952552A CN109201341A CN 109201341 A CN109201341 A CN 109201341A CN 201810952552 A CN201810952552 A CN 201810952552A CN 109201341 A CN109201341 A CN 109201341A
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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
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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
- 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
Abstract
The present invention provides a kind of low-order coal coal slime flotation collector and its preparation method and application for compounding sour aldehyde ether, which includes each component of following mass percent: C10‑C16Hydrocarbon-type oil 60-85%；C6‑C8Sour 5-15%；C5‑C9Aldehyde 5-15%；C4‑C10Ether 5-15%.The low-order coal coal slime flotation collector provided by the invention for compounding sour aldehyde ether, the collecting agent has composition simple, it can be used as the economical and efficient sorting that low-order coal coal slime flotation collector completes conventional flotation, have the characteristics that reagent consumption is small, flotation is at low cost, the efficiency of separation is high.
Description
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 is it is proposed that a kind of coal is deep
Purification system and method are spent, 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 makes it be difficult to promote because there are medicament heating links there are certain security risk
Using.Therefore high, at high cost for low-order coal coal slime flotation conventional dose medicine consumption, unconventional method for floating operability difference shows
Shape develops the special efficient medicament suitable for conventional flotation according to low-order coal Slime Characteristics, not only contributes to realize that China is dynamic
Power coal coal slime flotation upgrading and coal resources high-efficiency cleaning utilize, while anticipating to reducing pollution that caused by coal burning, improving coal enterprise economic efficacy
Justice is great.
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, flotation is at low cost, and the efficiency of separation is high.But it still remains component more, complicated component, cause ore-dressing practice waste component multiple
Miscellaneous, poisonous and harmful element 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 aldehyde ether, which has
Composition is simple, and the economical and efficient that can be used as low-order coal coal slime flotation collector completion conventional flotation sorts, small with reagent consumption,
The features such as flotation is at low cost, the efficiency of separation is high.
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 aldehyde ether, including following quality hundred
Divide each component of ratio:
C10-C16Hydrocarbon-type oil 60-85%；
C6-C8Sour 5-15%；
C5-C9Aldehyde 5-15%；
C4-C10Ether 5-15%.
Collecting agent of the invention, only adds C10-C16Hydrocarbon-type oil, C6-C8Acid, C5-C9Aldehyde and C4-C10Ether can be applicable in
In the low-order coal coal slime flotation collector of conventional flotation method, component is simple, avoid in floatation process waste component it is complicated and
The drawbacks such as more than poisonous and harmful element reduce the harm to ecological environment, and reduce cost.It is simply caught using this ingredient simultaneously
Agent is received, excellent flotation effect can be reached in less reagent consumption.
Preferably, the collecting agent includes each component of following mass percent: C10-C16Hydrocarbon-type oil 70-80%, such as
70%, 73%, 75%, 78%, 80% etc., preferably 75-80%；C6-C8Sour 7-12%, such as 7%, 10%, 12% etc.；C5-C9
Aldehyde 5-8%, such as 5%, 7%, 8% etc.；C4-C10Ether 8-10%, such as 8%, 9%, 10% etc..Using catching for the optimum ratio
Receive agent, when being used for flotation low-order coal coal slime, under lower dosing, the yield of gained flotation concentrate is high, reach 60% with
On, the combustible recovery of even up to 70-80%, concentrate are high, reachable 83% or more, even up to 85-95%.
In a kind of preferred embodiment, the collecting agent includes each component of following mass percent: the hydrocarbon-type oil is accounted for
70%, the acid accounts for 12%, and the aldehyde accounts for 8%, and the ether accounts for 10%；
In a kind of preferred embodiment, the hydrocarbon-type oil accounts for 80%, and the acid accounts for 7%, and the aldehyde accounts for 5%, and the ether accounts for
8%；
In a kind of preferred embodiment, the hydrocarbon-type oil accounts for 75%, and the acid accounts for 10%, and the aldehyde accounts for 7%, and the ether accounts for
8%.
C10-C16Hydrocarbon-type oil for example can be C10、C11、C12、C13、C14、C15、C16Hydrocarbon-type oil etc., it is preferred that the hydro carbons
Oil is selected from least one of diesel oil or kerosene.
C6-C8Acid for example can be C6、C7、C8Acid etc., it is preferred that the acid include in caprylic acid or its homologue at least
One kind, more preferably at least one of caprylic acid and n-caproic acid.
C5-C9Aldehyde for example can be C5、C6、C7、C8、C9Aldehyde etc., it is preferred that the aldehyde includes in valeraldehyde or its homologue
At least one, more preferably at least one of valeraldehyde and n-octaldehyde.
C4-C10Ether for example can be C4、C5、C6、C7、C8、C9、C10Aldehyde etc., it is preferred that the ether includes n-amylether or it is same
Be at least one of object, preferably at least one of such as n-amylether, octyl ether and n-butyl ether, more preferably n-amylether and
At least one of n-butyl ether can improve flotation effect using preferred ether, improve the flammable of flotation concentrate yield and concentrate
The body rate of recovery.
More preferably, in collecting agent of the invention, the hydrocarbon-type oil is diesel oil and/or kerosene；The acid is caprylic acid
Or at least one of n-caproic acid；The aldehyde is at least one of valeraldehyde or n-octaldehyde；The ether is n-amylether or positive fourth
At least one of ether.Using the collecting agent of these group of subassembly, more preferably flotation effect can get, reduce medicine consumption, improve
The combustible recovery of flotation concentrate yield and concentrate.These more preferable components are according to C10-C16Hydrocarbon-type oil 70-80%, preferably
75-80%；C6-C8Sour 7-12%；C5-C9Aldehyde 5-8%；C4-C10The proportions of ether 8-10% can obtain under lower medicine consumption
Obtain superior flotation effect.The ton coal slime consumption of collecting agent can be 0.5-2.8kg/t.
Second aspect of the present invention provides a kind of preparation method for preparing low-order coal coal slime flotation collector as described above,
Include the following steps: after mixing hydrocarbon-type oil and acid, aldehyde and ether, obtains collecting agent；Preferably, acid, aldehyde are added in hydrocarbon-type oil
And ether, 15min or more is stirred, 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 70-80%, 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, 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 pulp density be 60-100g/L, such as 60g/L, 80g/L,
100g/L etc.；Preferably, collector dosage is ton coal slime consumption 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 1.9-2.8kg/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 is selected from 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 ethers organic matter of addition in conventional dose (non-polar hydrocarbon oil) makees promotor, with C6-C8Acid and
C5-C10Ketone is used as promotor together, can not only act on the oxygen-containing functional group on low-order coal coal slime surface, effectively covers coal slime surface
Polar group significantly improves coal slime surface hydrophobic；Polarity oxygen-containing group is adsorbable to gas-liquid interface simultaneously, facilitates hydrocarbon-type oil
It is adsorbed on bubble surface, formation is stablized, hydrophobicity 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, hydrophobicity coal grain and bubble adhesion probability are enhanced, to significantly improve flotation
Efficiency reduces medicine consumption.By matching using comprising ethers promotor and hydrocarbon-type oil, it is oxygen-containing to realize the peculiar surface of low-order coal coal slime
The surface of functional group and hole is modified, and has obtained practical Study of flotation verifying.
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 can be completed in screening installation economical and efficient sorting；Compared to existing low-order coal coal slime flotation
Collecting agent 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, while flotation effect is improved, clean coal yield and combustible recovery have large increase.
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
| Material/apparatus | Producer | Model/property |
| High alumina jet coal | Zhun Nengheidai ditch coal preparation plant of Shenhua | Jet coal |
| Shenmu County's weakly caking coal | Yulin Shenmu County Jin He coal separation Co., Ltd | Weakly caking coal |
| Refreshing east jet coal | Mind eastern boolean's platform coal preparation plant of Shenhua | Jet coal |
| Diesel oil | Sinopec | No. 0 diesel oil |
| Flotation device | Jilin mine locating machinery plant | 1.5L XFD type hanging trough flotator |
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%, valeraldehyde
8%, n-amylether 10%.Preparation process is as follows: by diesel oil, caprylic acid, after valeraldehyde 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%,
Valeraldehyde 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%,
N-octaldehyde 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%,
N-octaldehyde 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%,
N-octaldehyde 7%, 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%,
N-octaldehyde 7%, octyl 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%,
N-octaldehyde 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 2.0kg/t, cleaned coal combustible recovery reaches the present embodiment 1-1 collecting agent consumption
83.67%, cleans ash 13.78%, 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 2.0kg/t with the present embodiment 1-3 and 1-4
Collecting agent consumption flotation effect in 2.0kg/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 92.07%, and cleans ash 15.18%, 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%, n-octaldehyde
5%, n-butyl ether 8%.Preparation process is as follows: by diesel oil, n-caproic acid, after n-octaldehyde and n-butyl ether mix in proportion, with 1000rpm
Speed stir 25min, obtain 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 2.0kg/t, cleaned coal combustible recovery is smart up to 90.69%
Coal ash is divided into 11.27%, 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
84.11%, cleans ash 10.41%, 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% is just pungent
Aldehyde 7%, n-butyl ether 8%.Preparation process is as follows: by diesel oil, caprylic acid, after n-octaldehyde and n-butyl ether mix in proportion, with
The speed of 1000rpm stirs 20min, 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 1.9kg/t, cleaned coal combustible recovery is smart up to 85.35%
Coal ash is divided into 4.91%, 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, improves flotation effect, to reduce pollution that caused by coal burning,
It is significant to improve coal enterprise economic efficacy, 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 aldehyde ether, which is characterized in that including each of following mass percent
Component:
C10-C16Hydrocarbon-type oil 60-85%；
C6-C8Sour 5-15%；
C5-C9Aldehyde 5-15%；
C4-C10Ether 5-15%.
2. low-order coal coal slime flotation collector according to claim 1, which is characterized in that the collecting agent includes following matter
Measure each component of percentage:
C10-C16Hydrocarbon-type oil 70-80%, preferably 75-80%；
C6-C8Sour 7-12%；
C5-C9Aldehyde 5-8%；
C4-C10Ether 8-10%.
3. low-order coal coal slime flotation collector according to claim 1, which is characterized in that the collecting agent includes following matter
Measure each component of percentage: the C10-C16Hydrocarbon-type oil accounts for 70%, the C6-C8Acid accounts for 12%, the C5-C9Aldehyde accounts for 8%, described
C4-C10Ether accounts for 10%；
Alternatively, the C10-C16Hydrocarbon-type oil accounts for 80%, the C6-C8Acid accounts for 7%, the C5-C9Aldehyde accounts for 5%, the C4-C10Ether accounts for
8%；
Alternatively, the C10-C16Hydrocarbon-type oil accounts for 75%, the C6-C8Acid accounts for 10%, the C5-C9Aldehyde accounts for 7%, the C4-C10Ether
Account for 8%.
4. low-order coal coal slime flotation collector according to claim 1-3, which is characterized in that
The hydrocarbon-type oil is selected from 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
At least one of 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 aldehyde includes at least one at least one of valeraldehyde or its homologue, preferably valeraldehyde and n-octaldehyde
Kind.
7. low-order coal coal slime flotation collector according to claim 1-3, which is characterized in that
The ether includes at least one of n-amylether or its homologue, preferably in n-amylether, octyl ether and n-butyl ether
At least one, at least one of more preferable n-amylether, n-butyl ether.
8. according to the described in any item low-order coal coal slime flotation collectors of 1-3 are required, which is characterized in that the hydrocarbon-type oil is
Diesel oil and/or kerosene；The acid is at least one of caprylic acid or n-caproic acid；The aldehyde be in valeraldehyde or n-octaldehyde extremely
Few one kind；The ether is at least one of n-amylether or n-butyl ether.
9. a kind of prepare the preparation method such as the described in any item low-order coal coal slime flotation collectors of claim 1-8, feature
It is, includes the following steps: after mixing hydrocarbon-type oil and acid, aldehyde and ether, obtain collecting agent；
Preferably, acid, aldehyde 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, collecting agent and foaming agent are added thereto, feeds in floatation equipment and is divided after stirring
Choosing, obtains flotation concentrate and flotation tailing；
Preferably, the pulp density is 60-100g/L；
Preferably, collector dosage is ton coal slime consumption 0.5-2.8kg/t, and the ton coal slime consumption of foaming agent is 0.1-0.5kg/t；
Preferably, the foaming agent is selected from sec-octyl alcohol or fusel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810952552.0A CN109201341B (en) | 2018-08-21 | 2018-08-21 | Low-rank coal slime flotation collecting agent compounded with acid aldehyde ether and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810952552.0A CN109201341B (en) | 2018-08-21 | 2018-08-21 | Low-rank coal slime flotation collecting agent compounded with acid aldehyde ether and preparation method and application thereof |
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| Publication Number | Publication Date |
|---|---|
| CN109201341A true CN109201341A (en) | 2019-01-15 |
| CN109201341B CN109201341B (en) | 2021-03-30 |
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| CN111151382A (en) * | 2020-01-20 | 2020-05-15 | 太原理工大学 | Method for reducing coal flotation collector kerosene consumption |
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