CN107619693A - A kind of slurries additive agent and its preparation method and application - Google Patents
A kind of slurries additive agent and its preparation method and application Download PDFInfo
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- CN107619693A CN107619693A CN201710935903.2A CN201710935903A CN107619693A CN 107619693 A CN107619693 A CN 107619693A CN 201710935903 A CN201710935903 A CN 201710935903A CN 107619693 A CN107619693 A CN 107619693A
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Abstract
The invention discloses a kind of slurries additive agent, is made up of β naphthalenesulfonic acid-formaldehyde condensates, sodium lignin sulfonate and water.In addition, the invention also discloses a kind of method for preparing slurries additive agent, this method is：β naphthalenesulfonic acid-formaldehyde condensates, sodium lignin sulfonate and water are placed in batch mixer and mixed, 300 mesh sieves is crossed after being well mixed, obtains slurries additive agent.Meanwhile present invention also offers a kind of method that slurries additive agent prepares water-coal-slurry, this method to be：Slurries additive agent, coal dust and water are stirred, water-coal-slurry is made；The mass content of slurries additive agent is 0.1%~0.15% in the water-coal-slurry.β naphthalenesulfonic acid-formaldehyde condensates in slurries additive agent of the present invention are stronger for the adaptability of coal, when the slurries additive agent and water-coal-slurry that are prepared using β naphthalenesulfonic acid-formaldehyde condensates, usage amount is less, without addition stabilizer, water-coal-slurry can be made to keep stable.
Description
Technical field
The invention belongs to slurries additive agent technical field, and in particular to a kind of slurries additive agent and preparation method thereof and
Using.
Background technology
Slurries additive agent is that one kind can promote dispersed phase (the coal grain in water-coal-slurry) in decentralized medium (in water-coal-slurry
Water) in dispersed chemical agent, be that a kind of chemical industry that cool water mixture burning, gasification and conveying engineering Chinese medicine are largely used helps
Agent, the at present exploitation of oil do not catch up with use, and every country is all developing the technology of substitution oil, and fat coal substitutes oil
Technique has become the technological difficulties that each side makes great efforts to capture, and wherein slurries additive agent has in the process aspect for preparing water-coal-slurry
Very important effect, existing slurries additive agent are added to slurrying in the device of water-coal-slurry processed, the concentration of obtained coal slurry
It is too low, poor fluidity, transport pipeline is easily blocked during transporting water-coal-slurry, and prepare inventory during water-coal-slurry
It is larger, slurrying cost is added, reduces the production cost of enterprise, it is therefore, low there is an urgent need to design a kind of efficient and cost
Slurries additive agent.
The content of the invention
The technical problems to be solved by the invention are to be directed to above-mentioned the deficiencies in the prior art, there is provided a kind of water-coal-slurry adds
Add agent.The slurries additive agent is made of sodiumβ-naphthalenesulfonate formaldehyde condensation products, sodium lignin sulfonate and water, and composition is simple, nothing
Stabilizer need to be used, the slurries additive agent of gained is with regard to that can prepare stable water-coal-slurry, and slurrying activity is high, especially originally
Invent in the slurries additive agent prepared that sodiumβ-naphthalenesulfonate formaldehyde condensation products are stronger for the adaptability of coal, can meet to remove brown
All kinds kinds of coals for gasification outside coal, and prepared using a kind of preparation of industrialization scheme, enterprise's industrialized production can be beneficial to
Slurries additive agent and water-coal-slurry, while slurries additive agent, when preparing water-coal-slurry, addition is less, it is stable without addition
Agent, with regard to water-coal-slurry can be made to keep stable, transport pipeline is not also blocked after transporting for a long time.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of slurries additive agent, its feature exist
In being made up of the raw material of following mass percent：Sodiumβ-naphthalenesulfonate formaldehyde condensation products 10%~30%, sodium lignin sulfonate 10%
~30%, surplus is water；Wherein, the sodiumβ-naphthalenesulfonate formaldehyde condensation products and the gross mass of sodium lignin sulfonate and the quality of water
The ratio between be 2:3.
Above-mentioned a kind of slurries additive agent, it is characterised in that be made up of the raw material of following mass percent：Beta-naphthalenesulfonic-acid
Sodium formaldehyde condensation product 10%~15%, sodium lignin sulfonate 25%~30%, surplus are water.
Above-mentioned a kind of slurries additive agent, it is characterised in that be made up of the raw material of following mass percent：Beta-naphthalenesulfonic-acid
Sodium formaldehyde condensation product 10%, sodium lignin sulfonate 30%, surplus are water.
Above-mentioned a kind of slurries additive agent, it is characterised in that the method for the sodiumβ-naphthalenesulfonate formaldehyde condensation products includes
Following steps：
Step 1: prepare sodiumβ-naphthalenesulfonate：Crude naphthalene is placed in reactor, in the condition that temperature is 130 DEG C~140 DEG C
Under melted, after crude naphthalene is completely melt, the concentrated sulfuric acid is added to the feed rate of the ton hour of 0.5 ton hour~1
Sulfonating reaction is carried out with crude naphthalene in reactor, after the concentrated sulfuric acid all adds, it is anti-to be warming up to 160 DEG C~170 DEG C continuation sulfonation
1h~2h is answered, water is then added and reaction is hydrolyzed, hydrolysis is cooled to 120 DEG C after terminating, then add ion film liquid
Alkali and water carry out neutralization reaction, and neutralization reaction obtains sodiumβ-naphthalenesulfonate after terminating；The addition of the concentrated sulfuric acid is crude naphthalene matter
The 60%~66% of amount, the addition of the hydrolysis reclaimed water are the 35%~43% of the Quality of Naphthalene, the neutralization
The addition for reacting intermediate ion film liquid alkali is the 58%~62% of Quality of Naphthalene, and the addition of the neutralization reaction reclaimed water is work
The 45%~50% of industry naphthalene quality, the quality purity of the crude naphthalene are not less than 98%, and the mass concentration of the concentrated sulfuric acid is not low
In 98%；
Step 2: prepare sodiumβ-naphthalenesulfonate formaldehyde condensation products solution：By formaldehyde with the ton hour of 0.5 ton hour~0.7
Feed rate is added in the reactor equipped with sodiumβ-naphthalenesulfonate, is no less than under conditions of being 90 DEG C~100 DEG C in temperature
3.5h condensation reaction, condensation reaction solution is obtained, condensation reaction solution is then diluted with water into reactor and continues to stir, stirred
During when the current value shown on current tester reaches the first pre-set current value, by Ionic Membrane with 0.4 ton hour
The feed rate of~0.6 ton hour is added in reactor, and neutralization reaction is carried out under conditions of being 95 DEG C~98 DEG C in temperature, when
When the current value shown on current tester is down to the second pre-set current value, and in kettle reaction solution pH value be more than 12 when, terminate
Neutralization reaction, obtain the sodiumβ-naphthalenesulfonate formaldehyde condensation products solution that mass concentration is less than 50%；The addition of the formaldehyde is step
The 75%~83% of Quality of Naphthalene described in rapid one, the addition of the water is 38% of Quality of Naphthalene described in step 1
~43%, the addition of the Ionic Membrane is 58%~62% of Quality of Naphthalene described in step 1；
Prepared in step 1 prepared in sodiumβ-naphthalenesulfonate and step 2 sodiumβ-naphthalenesulfonate formaldehyde condensation products solution process it is equal
Carried out under conditions of stirring；
Step 3: prepare sodiumβ-naphthalenesulfonate formaldehyde condensation products：The sodiumβ-naphthalenesulfonate formaldehyde condensation products that will be obtained in step 2
It is 50% that solution, which is concentrated into its mass concentration, and sodiumβ-naphthalenesulfonate formaldehyde condensation products are obtained after spray drying.
Above-mentioned a kind of slurries additive agent, it is characterised in that when the electricity that the current transformer is 50/5 in step 2
During current transformer, first pre-set current value is 32A, and second pre-set current value is 23A~25A.
Above-mentioned a kind of slurries additive agent, it is characterised in that in step 1, the feed rate of the concentrated sulfuric acid is 0.8
Ton hour；The addition of the concentrated sulfuric acid is the 64% of Quality of Naphthalene, and the addition of the hydrolysis reclaimed water is the work
The 40% of industry naphthalene quality, the addition of the neutralization reaction intermediate ion film liquid alkali are the 60% of Quality of Naphthalene, described to neutralize instead
The addition for answering reclaimed water is the 48% of Quality of Naphthalene.
A kind of above-mentioned slurries additive agent, it is characterised in that in step 2, the feed rate of the formaldehyde for 0.8 ton/
Hour, the addition of the formaldehyde is 80% of Quality of Naphthalene described in step 1, and the addition of the water is in step 1
The 40% of Quality of Naphthalene, the addition of the Ionic Membrane are no less than 60% of Quality of Naphthalene in step 1.
Above-mentioned a kind of slurries additive agent, it is characterised in that sodiumβ-naphthalenesulfonate formaldehyde condensation products described in step 3
Solid content is not less than 92%.
In addition, present invention also offers a kind of preparation method of slurries additive agent, it is characterised in that this method is：Will
Sodiumβ-naphthalenesulfonate formaldehyde condensation products, sodium lignin sulfonate and water, which are placed in batch mixer, to be mixed, and 300 mesh are crossed after being well mixed
Sieve, obtains slurries additive agent.
In addition, present invention also offers a kind of method that water-coal-slurry is prepared using slurries additive agent, it is characterised in that should
Method is：Slurries additive agent and water are mixed evenly, coal dust is added in whipping process, water coal is made after stirring
Slurry；The mass content of slurries additive agent is 0.1%~0.15% in the water-coal-slurry, the mass content of coal dust for 60%~
70%.
The present invention gathers the work of motor by current transformer during sodiumβ-naphthalenesulfonate formaldehyde condensation products are prepared
Current value judges the terminal of condensation reaction, due to reaction solution in reactor viscosity with condensation reaction progress, it is intermolecular
With reference to closer, and molecular weight is bigger, and the viscosity increase of reaction solution, agitator is big with the change of liquid viscosity and torsion becomes
Greatly, the resistance increase of the agitating paddle of agitator, thus the operating current of motor also increases therewith on agitator, passes through the work of motor
Carry out Indicator Reaction terminal as current value, meanwhile, the real-time working that the motor of agitator is gathered by 50/5 current transformer is electric
Stream, the working current value for the motor that current tester collects current transformer are handled, the real-time working electric current of motor
, can be exactly by current tester after the motor current value for being able to, by 10 times of amplifications, gather at reaction end is extended
Show, can directly be read by experimenter, then instruct worker to carry out next step operation, this is very beneficial for worker to life
The control of production. art, a kind of standardized production flow is easily formed, the judgement to reaction end is also more accurate, can more stablize and make
It is standby go out efficient sodiumβ-naphthalenesulfonate formaldehyde condensation products.
By the working current value of the motor of agitator come the viscosity of Indicator Reaction liquid, and the viscosity of reaction end is passed through
Current tester is shown, can be used to control the terminal of reaction, so as to judge whether to carry out the reaction of next step or terminate anti-
Should, this is that inventor obtains by being widely used in the specific water-coal-slurry operating mode for preparing, and it is mutual to determine electric current by current tester
The operating current for the motor that sensor collection is returned, (is adopted when the current value shown on current tester reaches the first pre-set current value
With 50/5 current transformer, the first pre-set current value measures reaction solution density when being 32A is 1.256g/cm3, viscosity is
80MPas, now reaction solution possess optimal density, molecule is combined with molecule belongs to Best Point, now plus Ionic Membrane in
The property of the condensation product obtained with reaction solution is optimal, when the current value shown on current tester is down to the second pre-set current value
When (using 50/5 current transformer, the second pre-set current value is 23A~25A), and the pH of reaction solution be 10~12 when, now instead
The viscosity of liquid is answered to be reduced to 30MPas~33MPas, the molecular weight of the condensation product that neutralization reaction obtains after terminating and hydrophilic group
Quantity is the most favourable for the stability for preparing water-coal-slurry, is allowed to be respectively provided with well the water-coal-slurry of Coal rank and different gradation
Adaptability, increase coal particle surface it is electrical, and coal particle surface formed steric restriction, avoid the coal particle being dispersed in water
It is close, so as to which stable water-coal-slurry be made.
The present invention has advantages below compared with prior art：
1st, the sodiumβ-naphthalenesulfonate formaldehyde condensation products that prepared by the present invention are stronger to coal adaptability, can meet in addition to lignite
All kinds kinds of coals for gasification, efficient water-coal-slurry is made, and the amount added when preparing water-coal-slurry is less, of the invention to make
The mass content of slurries additive agent is 0.1%~0.15% during standby water-coal-slurry, compared with prior art (slurries additive agent
Addition be essentially more than 0.3%), this greatly reduces slurrying cost, adds the profit of enterprise.
2nd, the water-coal-slurry that slurries additive agent of the invention is prepared, has good dispersion, and dynamic viscosity is small, through experiment
Checking, shear rate is 100s at 25 DEG C-1When, viscosity is less than 1200cP, can effectively reach the concentration of water-coal-slurry conveying device
And viscosity requirement, course of conveying will not block pipeline, there is strong adaptability.
3rd, the method for sodiumβ-naphthalenesulfonate formaldehyde condensation products prepared by the present invention is different from the system of existing laboratory small lot
Preparation Method, it is a kind of industrialization large-scale producing method, automation, continuous, efficiently production can be realized, improves the production of enterprise
Efficiency, while the real-time working current value of motor and amplified is gathered by current transformer, to judge the end of condensation reaction
Point, the terminal of reaction is more accurate, is advantageous to control of the shop worker to production technology, easily forms a kind of standardized production stream
Journey, can more stablize and prepare efficient sodiumβ-naphthalenesulfonate formaldehyde condensation products, the molecular weight of the sodiumβ-naphthalenesulfonate formaldehyde condensation products and
The quantity of hydrophilic radical is the most favourable for the stability for preparing water-coal-slurry, is allowed to the water-coal-slurry to Coal rank and different gradation
Good adaptability is respectively provided with, increase coal particle surface is electrical, and forms steric restriction in coal particle surface, avoids being dispersed in water
In coal particle it is close, so as to which stable water-coal-slurry be made.
4th, in the preparation method of sodiumβ-naphthalenesulfonate formaldehyde condensation products of the invention, the feed ratio of reactant, the stream of charging
Amount, the working current value of the temperature of reaction, the time of reaction and agitator motor specify the judgement of reaction end, are all according to work
Industryization, which is produced in enormous quantities, to be designed, and finally obtains sodiumβ-naphthalenesulfonate formaldehyde condensation products, then after being mixed with sodium lignin sulfonate, water
Obtained slurries additive agent, using the sodiumβ-naphthalenesulfonate formaldehyde condensation products of the invention prepared when preparing slurries additive agent,
Unlike a large amount of powder can be produced in the prior art, the yield of slurries additive agent, slurries additive agent prepared by the present invention are influenceed
Yield be 100%, production efficiency is also high, and prepare slurries additive agent be not required to as in the prior art add stabilizer
The stability of slurries additive agent is kept, and sodiumβ-naphthalenesulfonate formaldehyde condensation products prepared by the present invention achieve that the steady of water-coal-slurry
It is qualitative.The slurries additive agent of preparation uses the central effect with regard to that can embody stabilization in the operating mode of reality, so selecting this hair
Bright preparation method prepares sodiumβ-naphthalenesulfonate formaldehyde condensation products, is obtained according to actual good preparation water-coal-slurry operating mode
's.
Technical scheme is described in further detail below by drawings and examples.
Brief description of the drawings
Fig. 1 is the structural representation that the present invention prepares the consersion unit used in sodiumβ-naphthalenesulfonate formaldehyde condensation products.
Description of reference numerals：
1-reactor；2-agitator；3-motor；
4-AC power；5-current transformer；6-current tester.
Embodiment
The consersion unit that 1~embodiment of the embodiment of the present invention 4 uses as shown in figure 1, the consersion unit includes reactor 1,
The motor 3 for having agitator 2 on reactor 1 and controlling agitator 2 to stir, motor 3 are powered using AC power 4, Current Mutual Inductance
The current input terminal of device 5 is connected on the circuit that AC power 4 is powered for motor 3, the current output terminal of the current transformer 5
Current tester 6 is connected to, the current transformer 5 is used for the operating current for gathering motor 3 and the operating current of motor 3 is carried out
Amplification, current tester 6 are used to the operating current after amplification be processed and displayed；The reactor 1 reacts for jacket type
Kettle, by being passed through the temperature of reaction solution in automatic steam control kettle into chuck, there is polytetrafluoroethyllining lining in the reactor 1,
Can strong acid and strong alkali resistant.
The preparation method of slurries additive agent is described in detail by 1~embodiment of embodiment 4 by the present invention：
Embodiment 1
The slurries additive agent of the present embodiment is made up of the raw material of following mass percent：Sodiumβ-naphthalenesulfonate formaldehyde condensation products
10%, sodium lignin sulfonate 30%, surplus is water.
The preparation method of the sodiumβ-naphthalenesulfonate formaldehyde condensation products of the present embodiment comprises the following steps：
Step 1: prepare sodiumβ-naphthalenesulfonate：2.5 tons of crude naphthalene is placed in reactor 1, reactor 1 is sealed, 135
Melted under conditions of DEG C, after crude naphthalene is completely melt, by 1.6 tons of the concentrated sulfuric acids (national standard) with the charging of 0.8 ton hour
Speed is added in reactor 1 carries out sulfonating reaction with crude naphthalene, and after the concentrated sulfuric acid all adds, 165 DEG C are warming up to by steam
Continue stirring reaction 2h, then add 1 ton of water and reaction is hydrolyzed, hydrolysis is cooled to 120 DEG C after terminating, then add again
The Ionic Membrane and 1.2 tons of water for entering 1.5 tons carry out neutralization reaction, and neutralization reaction obtains sodiumβ-naphthalenesulfonate after terminating；It is described
The quality purity of crude naphthalene is not less than 98%, and the mass concentration of the concentrated sulfuric acid is not less than 98%；
Step 2: prepare sodiumβ-naphthalenesulfonate formaldehyde condensation products solution：By 2 tons of formaldehyde with the feed rate of 0.5 ton hour
It is added in the reactor 1 equipped with sodiumβ-naphthalenesulfonate, does not stop the condensation reaction that stirring carries out 3.5h under conditions of being 95 DEG C in temperature,
Condensation reaction solution is obtained, 1 ton of water is then added into reactor 1 and dilutes and continues to stir, testing current is worked as in whipping process
When the current value shown on instrument 6 reaches the first pre-set current value, by 1.5 tons of Ionic Membrane with the charging speed of 0.5 ton hour
Rate is added in reactor 1, neutralization reaction is carried out under conditions of being 96 DEG C in temperature, when the current value shown on current tester 6
It is down to the second pre-set current value, and when the pH value of reaction solution is more than 12 in kettle, neutralization reaction terminates, and obtains mass concentration and is less than
50% sodiumβ-naphthalenesulfonate formaldehyde condensation products solution；If electric current is down to 24A, pH value is also less than 12, can add a small amount of ion
Film liquid alkali regulation pH value is more than 12；
In step 2 when the current transformer 5 is 50/5 current transformer, first pre-set current value is
32A, second pre-set current value are 24A；
Prepared in step 1 prepared in sodiumβ-naphthalenesulfonate and step 2 sodiumβ-naphthalenesulfonate formaldehyde condensation products solution process it is equal
Carried out under conditions of stirring；
Step 3: prepare sodiumβ-naphthalenesulfonate formaldehyde condensation products：The sodiumβ-naphthalenesulfonate formaldehyde condensation products that will be obtained in step 2
It is 50% that solution, which is concentrated into its mass concentration, and the sodiumβ-naphthalenesulfonate formaldehyde condensation products that solid content is 92% are obtained after spray drying.
In the present embodiment, the AC power 4 is 380V AC power, it is preferable that current tester 6 uses Hubei instrument
Its YTC2145 current mutual inductor on site tester produced into power equipment Co., Ltd.
In actual use, the current transformer 5 is by the work electricity of motor 3 using the purpose of 50/5 current transformer
Flow valuve amplifies 10 times, and the purpose using 50/5 current transformer is to carry out high Precision Processing to the operating current of motor 3, is met
The Current amplifier range of current transformer 5, improves the acquisition precision of the working current value of motor 3, and then records and show motor 3
The minor variations of working resistance, and the fine change of fluid viscosity is reacted in corresponding reactor 1.
In the present embodiment, the current transformer 5 can also be mutual using 5/5 current transformer or 500/5 electric current
Sensor, if using 5/5 current transformer to the working current value of the motor of agitator can direct measurement, not amplification quantity
Journey, this causes the working current value excursion of motor small, and the registration change on current tester is very fast, has little time to observe, can
The terminal of reaction can be just missed, so as to influence reaction product；If using 500/5 current transformer, the motor of agitator
Working current value is extended 100 times, and reaction end can be also noted exactly, but be the increase in and prepared beta-naphthalenesulfonic-acid sodium formaldehyde
The cost of condensation product, therefore use 50/5 current transformer and current tester 6 to can be achieved with the terminal of accurate Indicator Reaction
Purpose.
In the present embodiment, in step 2 in reactor 1 between the viscosity of reaction solution and the electric current registration of current tester 6
Relation it is as shown in table 1.
The relation of the viscosity of reaction solution and the electric current registration of current tester 6 in the reactor 1 of table 1
| Electric current registration (A) | 33 | 32 | 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 |
| Viscosity (MPas) | 98 | 80 | 69 | 60 | 52 | 43 | 38 | 35 | 33 | 31.8 | 30 | 29 |
As it can be seen from table 1 in reactor 1 condensation reaction solution viscosity with condensation reaction carry out viscosity increase, it is and logical
The electric current registration of overcurrent tester 6 is shown, and numerical value is in increased trend, treats that the current value that current tester 6 is shown reaches the
During one pre-set current value (32A), add Ionic Membrane and carry out neutralization reaction and obtain neutralization reaction liquid, reaction solution is viscous in kettle
Degree reduces, when the current value that current tester 6 is shown reaches the second pre-set current value (23A~25A), and reaction solution in kettle
PH value be more than 12, terminate reaction, obtain sodiumβ-naphthalenesulfonate formaldehyde condensation products solution, through in step 3 concentrate, dry after obtain
Sodiumβ-naphthalenesulfonate formaldehyde condensation products, the molecular weight of sodiumβ-naphthalenesulfonate formaldehyde condensation products and the quantity of hydrophilic radical are for preparing water coal
The stability of slurry is the most favourable, is allowed to be respectively provided with the water-coal-slurry of Coal rank and different gradation good adaptability, increases coal
Particle surface is electrical, and forms steric restriction in coal particle surface, avoids the coal particle that is dispersed in water close, steady so as to be made
Fixed water-coal-slurry.
The preparation method of the slurries additive agent of the present embodiment is：By sodiumβ-naphthalenesulfonate formaldehyde condensation products, lignin sulfonic acid
Sodium and water are placed in ribbon batch mixer and mixed, and cross 300 mesh sieves after being well mixed, obtain slurries additive agent.The present embodiment
Without powder phenomenon, the yield of product in the sodiumβ-naphthalenesulfonate formaldehyde condensation products and sodium lignin sulfonate and water mixed process of middle preparation
For 100%, it is low to solve the problems, such as that existing slurries additive agent produces substantial amounts of powder and product yield in preparation process.
Embodiment 2
The slurries additive agent of the present embodiment is made up of the raw material of following mass percent：Sodiumβ-naphthalenesulfonate formaldehyde condensation products
30%, sodium lignin sulfonate 10%, surplus is water.
The preparation method of the sodiumβ-naphthalenesulfonate formaldehyde condensation products of the present embodiment comprises the following steps：
Step 1: prepare sodiumβ-naphthalenesulfonate：2.5 tons of crude naphthalene is placed in reactor 1 under conditions of temperature is 130 DEG C
Melted, after crude naphthalene is completely melt, 1.5 tons of the concentrated sulfuric acids (national standard) are added to the feed rate of 0.5 ton hour
Sulfonating reaction is carried out with crude naphthalene in reactor 1, after the concentrated sulfuric acid all adds, is warming up to 160 DEG C of continuation stirring reaction 2h, then
Add 0.875 ton of water and reaction is hydrolyzed, hydrolysis is cooled to 120 DEG C after terminating, then add 1.45 tons of ion
Film liquid alkali and 1.125 tons of water carry out neutralization reaction, and neutralization reaction obtains sodiumβ-naphthalenesulfonate after terminating；The quality of the crude naphthalene is pure
Degree is not less than 98%, and the mass concentration of the concentrated sulfuric acid is not less than 98%；The sulfonating reaction, hydrolysis and neutralization reaction
Persistently stirred using the agitator 2 on reactor 1 in Cheng Zhong, and the fusion process of the crude naphthalene；
Step 2: prepare sodiumβ-naphthalenesulfonate formaldehyde condensation products solution：By 1.875 tons of formaldehyde with the charging of 0.6 ton hour
Speed is added in the reactor 1 equipped with the sodiumβ-naphthalenesulfonate obtained in step 1, does not stop to stir under conditions of being 90 DEG C in temperature
3.5h condensation reaction is carried out, obtains condensation reaction solution, then adds 0.95 ton of water to be diluted and persistently stir into reactor 1
Mix, in whipping process when the current value shown on current tester 6 reaches the first pre-set current value, by 1.45 tons of ionic membrane
Liquid caustic soda is added in reactor 1 with the feed rate of 0.4 ton hour, is carried out neutralization reaction under conditions of being 96 DEG C in temperature, is worked as electricity
The current value shown on current test instrument 6 is down to the second pre-set current value, and when the pH value of reaction solution is more than 12 in kettle, neutralization reaction
Terminate, obtain the sodiumβ-naphthalenesulfonate formaldehyde condensation products solution that mass concentration is less than 50%；
In step 2 when the current transformer 5 is 50/5 current transformer, first pre-set current value is
32A, second pre-set current value are 25A；
Prepared in step 1 prepared in sodiumβ-naphthalenesulfonate and step 2 sodiumβ-naphthalenesulfonate formaldehyde condensation products solution process it is equal
Carried out under conditions of stirring；
Step 3: prepare sodiumβ-naphthalenesulfonate formaldehyde condensation products：The sodiumβ-naphthalenesulfonate formaldehyde condensation products that will be obtained in step 2
It is 50% that solution, which is concentrated into its mass concentration, and the sodiumβ-naphthalenesulfonate formaldehyde condensation products that solid content is 92% are obtained after spray drying.
In the present embodiment, the AC power 4 is 380V AC power, and the current transformer 5 is 50/5 electric current
Transformer；Preferably, the YTC2145 Current Mutual Inductances that current tester 6 is produced using Hubei instrument day into power equipment Co., Ltd
Device on-spot tester.
The preparation method of the slurries additive agent of the present embodiment is：By sodiumβ-naphthalenesulfonate formaldehyde condensation products, lignin sulfonic acid
Sodium and water are placed in ribbon batch mixer and mixed, and 300 mesh sieves are crossed after being well mixed, and water-coal-slurry addition is obtained after screening out caking thing
Agent.The sodiumβ-naphthalenesulfonate formaldehyde condensation products prepared in the present embodiment in sodium lignin sulfonate and water mixed process without powder with showing
As the yield of product is 100%, solves existing slurries additive agent and substantial amounts of powder and product are produced in preparation process
Yield it is low the problem of.
Embodiment 3
The slurries additive agent of the present embodiment is made up of the raw material of following mass percent：Sodiumβ-naphthalenesulfonate formaldehyde condensation products
20%, sodium lignin sulfonate 20%, surplus is water.
The preparation method of the sodiumβ-naphthalenesulfonate formaldehyde condensation products of the present embodiment comprises the following steps：
Step 1: prepare sodiumβ-naphthalenesulfonate：2.5 tons of crude naphthalene is placed in reactor 1, in the bar that temperature is 140 DEG C
Melted under part, after crude naphthalene is completely melt, 1.65 tons of the concentrated sulfuric acids (national standard) are added with the feed rate of 1 ton hour
Enter into reactor 1 and carry out sulfonating reaction with crude naphthalene, after the concentrated sulfuric acid all adds, be warming up to 170 DEG C of continuation stirring reaction 1h,
Then add 1.075 tons of water and reaction is hydrolyzed, hydrolysis is cooled to 120 DEG C after terminating, then add 1.55 tons
Ionic Membrane and 1.25 tons of water carry out neutralization reaction, and neutralization reaction obtains sodiumβ-naphthalenesulfonate after terminating；The crude naphthalene
Quality purity is not less than 98%, and the mass concentration of the concentrated sulfuric acid is not less than 98%；The sulfonating reaction, hydrolysis and neutralization
In course of reaction, and persistently stirred using the agitator 2 on reactor 1 in the fusion process of the crude naphthalene；
Step 2: prepare sodiumβ-naphthalenesulfonate formaldehyde condensation products solution：By 2.075 tons of formaldehyde with the charging of 0.7 ton hour
Speed is added in the reactor 1 equipped with the sodiumβ-naphthalenesulfonate obtained in step 1, under conditions of being 90 DEG C~100 DEG C in temperature not
Stop the condensation reaction that stirring carries out 3.5h, obtain condensation reaction solution, then add 1.075 tons of water to be diluted simultaneously into reactor 1
It is lasting to stir, in whipping process when the current value shown on current tester (6) reaches the first pre-set current value, by 1.55 tons
Ionic Membrane be added to the feed rate of 0.6 ton hour in reactor 1, temperature be 98 DEG C under conditions of carry out in and
Reaction, when the current value shown on current tester 6 is down to the second pre-set current value, and the pH value of reaction solution is more than 12 in kettle
When, neutralization reaction terminates, and obtains the sodiumβ-naphthalenesulfonate formaldehyde condensation products solution that mass concentration is less than 50%；
In step 2 when the current transformer 5 is 50/5 current transformer, first pre-set current value is
32A, second pre-set current value are 23A；
Prepared in step 1 prepared in sodiumβ-naphthalenesulfonate and step 2 sodiumβ-naphthalenesulfonate formaldehyde condensation products solution process it is equal
Carried out under conditions of stirring；
Step 3: prepare sodiumβ-naphthalenesulfonate formaldehyde condensation products：The sodiumβ-naphthalenesulfonate formaldehyde condensation products that will be obtained in step 2
It is 50% that solution, which is concentrated into its mass concentration, and the sodiumβ-naphthalenesulfonate formaldehyde condensation products that solid content is 92% are obtained after spray drying.
In the present embodiment, the AC power 4 is 380V AC power, and the current transformer 5 is 50/5 electric current
Transformer；Preferably, the YTC2145 Current Mutual Inductances that current tester 6 is produced using Hubei instrument day into power equipment Co., Ltd
Device on-spot tester.
The preparation method of the slurries additive agent of the present embodiment is：By sodiumβ-naphthalenesulfonate formaldehyde condensation products, lignin sulfonic acid
Sodium and water are placed in ribbon batch mixer and mixed, and cross 300 mesh sieves after being well mixed, obtain slurries additive agent.The present embodiment
Without powder phenomenon, the yield of product in the sodiumβ-naphthalenesulfonate formaldehyde condensation products and sodium lignin sulfonate and water mixed process of middle preparation
For 100%, solve existing slurries additive agent the yield of substantial amounts of powder and product is produced in preparation process and low ask
Topic.
Embodiment 4
The slurries additive agent of the present embodiment is made up of the raw material of following mass percent：Sodiumβ-naphthalenesulfonate formaldehyde condensation products
15%, sodium lignin sulfonate 25%, surplus is water.
The preparation method of the sodiumβ-naphthalenesulfonate formaldehyde condensation products of the present embodiment comprises the following steps：
Step 1: prepare sodiumβ-naphthalenesulfonate：2.5 tons of crude naphthalene is placed in reactor 1 under conditions of temperature is 140 DEG C
Melted, after crude naphthalene is completely melt, 1.65 tons of the concentrated sulfuric acids (national standard) are added to the feed rate of 1 ton hour
Sulfonating reaction is carried out with crude naphthalene in reactor 1, after the concentrated sulfuric acid all adds, is warming up to 170 DEG C of continuation stirring reaction 1h, then
Add 1.075 tons of water and reaction is hydrolyzed, hydrolysis is cooled to 120 DEG C after terminating, then add 1.55 tons of ion
Film liquid alkali and 1.25 tons of water carry out neutralization reaction, and neutralization reaction obtains sodiumβ-naphthalenesulfonate after terminating；The quality of the crude naphthalene
Purity is not less than 98%, and the mass concentration of the concentrated sulfuric acid is not less than 98%；The sulfonating reaction, hydrolysis and neutralization reaction
During, and persistently stirred using the agitator 2 on reactor 1 in the fusion process of the crude naphthalene；
Step 2: prepare sodiumβ-naphthalenesulfonate formaldehyde condensation products solution：By 2.075 tons of formaldehyde with the charging of 0.6 ton hour
Speed is added in the reactor 1 equipped with the sodiumβ-naphthalenesulfonate obtained in step 1, under conditions of being 90 DEG C~100 DEG C in temperature not
Stop the condensation reaction that stirring carries out 3.5h, obtain condensation reaction solution, then add 1.075 tons of water to be diluted simultaneously into reactor 1
It is lasting to stir, in whipping process when the current value shown on current tester 6 reaches the first pre-set current value, by 1.55 tons
Ionic Membrane is added in reactor 1 with the feed rate of 0.6 ton hour, in being carried out under conditions of being 98 DEG C in temperature and anti-
Should, when the current value shown on current tester 6 is down to the second pre-set current value, and the pH value of reaction solution is more than 12 in kettle,
Neutralization reaction terminates, and obtains the sodiumβ-naphthalenesulfonate formaldehyde condensation products solution that mass concentration is less than 50%；
In step 2 when the current transformer 5 is 50/5 current transformer, first pre-set current value is
32A, second pre-set current value are 24A；
Preparing sodiumβ-naphthalenesulfonate and preparing the process of sodiumβ-naphthalenesulfonate formaldehyde condensation products solution is entered under conditions of stirring
Capable；
Step 3: prepare sodiumβ-naphthalenesulfonate formaldehyde condensation products：The sodiumβ-naphthalenesulfonate formaldehyde condensation products that will be obtained in step 2
It is 50% that solution, which is concentrated into its mass concentration, and the sodiumβ-naphthalenesulfonate formaldehyde condensation that solid content is 92.5% is obtained after spray drying
Thing.
In the present embodiment, the AC power 4 is 380V AC power, and the current transformer 5 is 50/5 electric current
Transformer；Preferably, the YTC2145 Current Mutual Inductances that current tester 6 is produced using Hubei instrument day into power equipment Co., Ltd
Device on-spot tester.
The preparation method of the slurries additive agent of the present embodiment is：By sodiumβ-naphthalenesulfonate formaldehyde condensation products, lignin sulfonic acid
Sodium and water are placed in ribbon batch mixer and mixed, and 300 mesh sieves are crossed after being well mixed, and water-coal-slurry addition is obtained after screening out caking thing
Agent.The sodiumβ-naphthalenesulfonate formaldehyde condensation products prepared in the present embodiment in sodium lignin sulfonate and water mixed process without powder with showing
As the yield of product is 100%, solves existing slurries additive agent and substantial amounts of powder and product are produced in preparation process
Yield it is low the problem of.
The preparation method of water-coal-slurry is described in detail by 5~embodiment of embodiment 8 by the present invention：
Embodiment 5
Use embodiment 1 prepare slurries additive agent prepare water-coal-slurry process for：Slurries additive agent and water are mixed
Conjunction is stirred, and coal dust is added in whipping process, and water-coal-slurry is made after stirring；Slurries additive agent in the water-coal-slurry
Mass content is 0.1%, and the mass content of coal dust is 65%；The coal dust is provided by refined long Giant Buddha Temple colliery.
Water-coal-slurry manufactured in the present embodiment selectes a survey at interval of a segment distance during pipeline transportation on pipeline
Pilot, four test points is selected altogether, same test point is every the concentration and viscosity of the water-coal-slurry of 8h test once-throughs, test
Time continues one month, and test result shows：Between the concentration of the water-coal-slurry of four test points maintains 60%~64%, viscosity
Between 350cP~650cP, meet the requirement to water coal slurry concentration and viscosity in national standard, also, persistently transport the water coal
Slurry exceedes more than half a year, the dangerous situations such as line clogging does not also occur, the plant running for transporting water-coal-slurry is good.
Embodiment 6
Use embodiment 2 prepare slurries additive agent prepare water-coal-slurry process for：Slurries additive agent and water are mixed
Conjunction is stirred, and coal dust is added in whipping process, and water-coal-slurry is made after stirring；Slurries additive agent in the water-coal-slurry
Mass content is 0.12%, and the mass content of coal dust is 70%；The coal dust is provided by Hei Gou collieries.
Water-coal-slurry manufactured in the present embodiment sets concentration and viscosity of the test point to water-coal-slurry in low pressure coal slurry pump porch
Tested, share 6 entrances：AP103, AP203, AP303, AP403, AP503, AP603, at same pump intake every
12h tests the concentration and viscosity of a water-coal-slurry, tests primary particle size percent of pass weekly, and test result shows：6 porch
Between the concentration range of water-coal-slurry maintains 56.5%~62%, viscosity meets in national standard between 670cP~1000cP
Requirement to water coal slurry concentration and viscosity, while the granularity percent of pass superelevation 90% of 40 mesh, water-coal-slurry persistently transports more than half a year,
There are not the dangerous situations such as line clogging, the plant running for transporting water-coal-slurry is good yet.
Embodiment 7
Use embodiment 3 prepare slurries additive agent prepare water-coal-slurry process for：Slurries additive agent and water are mixed
Conjunction is stirred, and coal dust is added in whipping process, and water-coal-slurry is made after stirring；Slurries additive agent in the water-coal-slurry
Mass content is 0.12%, and the mass content of coal dust is 60%；The coal dust is provided by Shenmu County colliery.
Water-coal-slurry manufactured in the present embodiment sets 1 test point in the duct, every the water-coal-slurry of 8h test once-throughs
Concentration and viscosity, the testing time continues three months, and test result shows：The concentration range of the water-coal-slurry of test point maintains
Between 58%~62%, viscosity meets the requirement to water coal slurry concentration and viscosity in national standard between 400cP~800cP,
Also, persistently transport the water-coal-slurry to exceed more than half a year, the dangerous situations such as line clogging also do not occur, transport the dress of water-coal-slurry
Put operational excellence.
Embodiment 8
Use embodiment 4 prepare slurries additive agent prepare water-coal-slurry process for：Slurries additive agent and water are mixed
Conjunction is stirred, and coal dust is added in whipping process, and water-coal-slurry is made after stirring；Slurries additive agent in the water-coal-slurry
Mass content is 0.12%, and the mass content of coal dust is 65%；The coal dust is provided by Shenmu County colliery.
Water-coal-slurry manufactured in the present embodiment sets 2 test points in the duct, and 2 test points are located at the middle part of pipeline respectively
And tail end, every the concentration and viscosity of the water-coal-slurry of 12h test once-throughs, the testing time continues three months, test result table
It is bright：Between the concentration range of the water-coal-slurry of 2 test points maintains 57%~61%, viscosity is full between 450cP~600cP
To the requirement of water coal slurry concentration and viscosity in sufficient national standard, also, persistently transport the water-coal-slurry and exceed more than half a year, also do not have
It is good to there is dangerous situation, the plant runnings for transporting water-coal-slurry such as line clogging.
It is described above, only it is presently preferred embodiments of the present invention, not the present invention is imposed any restrictions.It is every according to invention skill
Any simple modification, change and equivalence change that art is substantially made to above example, still fall within technical solution of the present invention
Protection domain in.
Claims (10)
1. a kind of slurries additive agent, it is characterised in that be made up of the raw material of following mass percent：Beta-naphthalenesulfonic-acid sodium formaldehyde contracts
Compound 10%~30%, sodium lignin sulfonate 10%~30%, surplus are water；Wherein, the sodiumβ-naphthalenesulfonate formaldehyde condensation products
It is 2 with the gross mass of sodium lignin sulfonate and the mass ratio of water:3.
2. a kind of slurries additive agent according to claim 1, it is characterised in that by the raw material system of following mass percent
Into：Sodiumβ-naphthalenesulfonate formaldehyde condensation products 10%~15%, sodium lignin sulfonate 25%~30%, surplus are water.
3. a kind of slurries additive agent according to claim 2, it is characterised in that by the raw material system of following mass percent
Into：Sodiumβ-naphthalenesulfonate formaldehyde condensation products 10%, sodium lignin sulfonate 30%, surplus are water.
A kind of 4. slurries additive agent according to claim 1, it is characterised in that the sodiumβ-naphthalenesulfonate formaldehyde condensation products
Method comprise the following steps：
Step 1: prepare sodiumβ-naphthalenesulfonate：Crude naphthalene is placed in reactor (1), in the condition that temperature is 130 DEG C~140 DEG C
Under melted, after crude naphthalene is completely melt, the concentrated sulfuric acid is added to the feed rate of the ton hour of 0.5 ton hour~1
Sulfonating reaction is carried out with crude naphthalene in reactor (1), after the concentrated sulfuric acid all adds, is warming up to 160 DEG C~170 DEG C continuation sulfonation
1h~2h is reacted, water is then added and reaction is hydrolyzed, hydrolysis is cooled to 120 DEG C, then adds ionic membrane after terminating
Liquid caustic soda and water carry out neutralization reaction, and neutralization reaction obtains sodiumβ-naphthalenesulfonate after terminating；The addition of the concentrated sulfuric acid is crude naphthalene
The 60%~66% of quality；The addition of the hydrolysis reclaimed water is the 35%~43% of the Quality of Naphthalene；In described
Addition with reaction intermediate ion film liquid alkali is the 58%~62% of Quality of Naphthalene, and the addition of the neutralization reaction reclaimed water is
The 45%~50% of Quality of Naphthalene；The quality purity of the crude naphthalene is not less than 98%, and the mass concentration of the concentrated sulfuric acid is not
Less than 98%；
Step 2: prepare sodiumβ-naphthalenesulfonate formaldehyde condensation products solution：By formaldehyde with the charging of the ton hour of 0.5 ton hour~0.7
Speed is added in the reactor equipped with sodiumβ-naphthalenesulfonate (1), carries out being no less than 3.5h under conditions of being 90 DEG C~100 DEG C in temperature
Condensation reaction, obtain condensation reaction solution, be then diluted with water condensation reaction solution into reactor (1) and continue to stir, stir
During when the current value shown on current tester (6) reaches the first pre-set current value, by Ionic Membrane with 0.4 ton/
Hour~0.6 the feed rate of ton hour be added in reactor (1), in being carried out under conditions of being 95 DEG C~98 DEG C in temperature and
Reaction, when the current value shown on current tester (6) is down to the second pre-set current value, and the pH value of reaction solution is more than in kettle
When 12, terminate neutralization reaction, obtain the sodiumβ-naphthalenesulfonate formaldehyde condensation products solution that mass concentration is less than 50%；The formaldehyde adds
Enter 75%~83% that amount is Quality of Naphthalene described in step 1, the addition of the water is crude naphthalene matter described in step 1
The 38%~43% of amount, the addition of the Ionic Membrane is 58%~62% of Quality of Naphthalene described in step 1；
Step 3: prepare sodiumβ-naphthalenesulfonate formaldehyde condensation products：The sodiumβ-naphthalenesulfonate formaldehyde condensation products solution that will be obtained in step 2
It is 50% to be concentrated into its mass concentration, and sodiumβ-naphthalenesulfonate formaldehyde condensation products are obtained after spray drying；
Prepared in step 1 and the process of sodiumβ-naphthalenesulfonate formaldehyde condensation products solution is prepared in sodiumβ-naphthalenesulfonate and step 2 stirring
Carried out under conditions of mixing.
5. a kind of slurries additive agent according to claim 4, it is characterised in that when the current transformer in step 2
(5) during the current transformer for being 50/5, first pre-set current value is 32A, and second pre-set current value is 23A~25A.
A kind of 6. slurries additive agent according to claim 4 or 5, it is characterised in that in step 1, the concentrated sulfuric acid
Feed rate is 0.8 ton hour, and the addition of the concentrated sulfuric acid is the 64% of the Quality of Naphthalene, in the hydrolysis
The addition of water is the 40% of the Quality of Naphthalene, and the addition of the neutralization reaction intermediate ion film liquid alkali is the crude naphthalene
The 60% of quality, the addition of the neutralization reaction reclaimed water are the 48% of the Quality of Naphthalene.
7. a kind of slurries additive agent according to claim 4 or 5, it is characterised in that in step 2, the formaldehyde adds
Material speed is 0.8 ton hour, and the addition of the formaldehyde is 80% of Quality of Naphthalene described in step 1, and the water adds
Enter 40% that amount is Quality of Naphthalene described in step 1, the addition of the Ionic Membrane is crude naphthalene described in step 1
The 60% of quality.
A kind of 8. slurries additive agent according to claim 4 or 5, it is characterised in that beta-naphthalenesulfonic-acid described in step 3
The solid content of sodium formaldehyde condensation product is not less than 92%.
A kind of 9. method for preparing the slurries additive agent as described in any claim in claim 1-4, it is characterised in that
This method is：Sodiumβ-naphthalenesulfonate formaldehyde condensation products, sodium lignin sulfonate and water are placed in batch mixer and mixed, is well mixed
300 mesh sieves are crossed afterwards, obtain slurries additive agent.
10. a kind of method that slurries additive agent using as described in any claim in claim 1-4 prepares water-coal-slurry,
Characterized in that, this method is：Slurries additive agent and water are mixed evenly, coal dust is added in whipping process, stirring is equal
Obtained water-coal-slurry after even；The mass content of slurries additive agent is 0.1%~0.15% in the water-coal-slurry, and the quality of coal dust contains
Measure as 60%~70%.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747021A (en) * | 2018-07-24 | 2020-02-04 | 国家能源投资集团有限责任公司 | Coal water slurry dispersant, preparation method and application thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101550369A (en) * | 2008-12-26 | 2009-10-07 | 新奥新能(北京)科技有限公司 | Water-coal-slurry additive and preparation method thereof |
| CN101560421A (en) * | 2009-04-20 | 2009-10-21 | 安徽理工大学 | High-concentration desulfurized coal water mixture additive and preparation method thereof |
| CN102199460A (en) * | 2011-04-08 | 2011-09-28 | 陕西伯音科技发展有限公司 | Additive for coal water slurry |
| CN102329669A (en) * | 2010-07-14 | 2012-01-25 | 上海焦化有限公司 | Coal water slurry additive |
| CN105038878A (en) * | 2015-07-08 | 2015-11-11 | 中煤科工清洁能源股份有限公司 | Method for preparing coal water slurry |
| CN105884238A (en) * | 2015-08-18 | 2016-08-24 | 科之杰新材料集团有限公司 | Naphthalene-based powder water reducing agent and preparation method thereof |
| CN106117481A (en) * | 2016-06-24 | 2016-11-16 | 山东省莱芜市汶河化工有限公司 | A kind of solvent method concentrates the condensation of sulfonation separate mealing type to produce the production method of naphthalene water reducer |
-
2017
- 2017-10-10 CN CN201710935903.2A patent/CN107619693B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101550369A (en) * | 2008-12-26 | 2009-10-07 | 新奥新能(北京)科技有限公司 | Water-coal-slurry additive and preparation method thereof |
| CN101550369B (en) * | 2008-12-26 | 2012-08-29 | 新奥新能(北京)科技有限公司 | Water-coal-slurry additive and preparation method thereof |
| CN101560421A (en) * | 2009-04-20 | 2009-10-21 | 安徽理工大学 | High-concentration desulfurized coal water mixture additive and preparation method thereof |
| CN102329669A (en) * | 2010-07-14 | 2012-01-25 | 上海焦化有限公司 | Coal water slurry additive |
| CN102199460A (en) * | 2011-04-08 | 2011-09-28 | 陕西伯音科技发展有限公司 | Additive for coal water slurry |
| CN105038878A (en) * | 2015-07-08 | 2015-11-11 | 中煤科工清洁能源股份有限公司 | Method for preparing coal water slurry |
| CN105884238A (en) * | 2015-08-18 | 2016-08-24 | 科之杰新材料集团有限公司 | Naphthalene-based powder water reducing agent and preparation method thereof |
| CN106117481A (en) * | 2016-06-24 | 2016-11-16 | 山东省莱芜市汶河化工有限公司 | A kind of solvent method concentrates the condensation of sulfonation separate mealing type to produce the production method of naphthalene water reducer |
Non-Patent Citations (1)
| Title |
|---|
| 韩敏: "高效萘系水煤浆分散剂的合成及性能研究", 《中国优秀硕士学位论文全文数据库（电子期刊） 工程科技Ⅰ辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110747021A (en) * | 2018-07-24 | 2020-02-04 | 国家能源投资集团有限责任公司 | Coal water slurry dispersant, preparation method and application thereof |
| CN110747021B (en) * | 2018-07-24 | 2022-03-22 | 国家能源投资集团有限责任公司 | Coal water slurry dispersant, preparation method and application thereof |
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