CN108913242A - A kind of coal water slurry dispersing agent - Google Patents
A kind of coal water slurry dispersing agent Download PDFInfo
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- CN108913242A CN108913242A CN201810727103.6A CN201810727103A CN108913242A CN 108913242 A CN108913242 A CN 108913242A CN 201810727103 A CN201810727103 A CN 201810727103A CN 108913242 A CN108913242 A CN 108913242A
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Abstract
The invention discloses a kind of coal water slurry dispersing agents, belong to water-coal-slurry field.The present invention takes 30 ~ 55 parts of composite diffusion agent A, 15 ~ 25 parts of composite diffusion agent B, 4 ~ 10 parts of rilanit specials, 2 ~ 5 parts of auxiliary agents, 5 ~ 10 parts of surfactants, 30 ~ 50 parts of water；In 30 ~ 45 DEG C, composite diffusion agent A, rilanit special, auxiliary agent, water is taken to mix in blender, 25 ~ 40min is stirred with 300 ~ 500r/min, it is warming up to 60 ~ 80 DEG C of addition surfactants, composite diffusion agent B mixing, 20 ~ 45min is stirred with 400 ~ 600r/min to get coal water slurry dispersing agent.The present invention easily precipitates after solving current coal water slurry dispersing agent use, the uneven problem of coal slurry dispersion.
Description
Technical field
The invention belongs to water-coal-slurry fields, and in particular to a kind of coal water slurry dispersing agent.
Background technique
Coal water slurry dispersing agent refers to the surfactant added in coal water slurry.Coal grain can be made to be dispersed stably in water,
Do not generate layering and precipitating.Water-coal-slurry is usually to pass through Physical Processing by about 65% coal, 34% water and 1% additive
A kind of obtained low pollution, high efficiency, can pipeline generation oily coal based fluid fuel.It changes the traditional combustion side of coal
Formula shows huge environmental protection and energy saving advantage.Especially in recent years, it after using the technology path of waste resource recovery, develops
Successful environment protecting coal-water fluid can substantially increase the environmental benefit of water-coal-slurry under the premise of not increase expense.In China
Under the guarantee of abundant coal data, water-coal-slurry also has become most basic, the most economical clear energy sources of the energy such as substitution oil, gas.
Quality requirement for water-coal-slurry is high concentration, low viscosity and good mobility and stability, as a result, coal water slurry dispersing agent
It is the key that influence water-coal-slurry quality, also influences the production cost of water-coal-slurry.
Currently, coal water slurry dispersing agent mainly has naphthalene system, humic acid, Lignins, polyolefin, acrylic acid series and phase
Close compound product.Certain effect is all achieved in actual use, but due to its stability difference etc., is easily occurred after use
Precipitating, coal slurry dispersion is uneven, and most of water-coal-slurry product fails to be up to state standards.Therefore, produce one kind can solve it is above-mentioned
The coal water slurry dispersing agent of problem has the very big market demand.
Summary of the invention
The technical problems to be solved by the invention：For easily precipitating after current coal water slurry dispersing agent use, coal slurry divides
Uneven problem is dissipated, a kind of coal water slurry dispersing agent is provided.
In order to solve the above technical problems, the present invention is using technical solution as described below：
A kind of coal water slurry dispersing agent, according to the mass fraction, including following component：4 ~ 10 parts of rilanit specials, 2 ~ 5 parts of auxiliary agents, 5 ~
10 parts of surfactants, 30 ~ 50 parts of water, which is characterized in that further include：30 ~ 55 parts of composite diffusion agent A, 15 ~ 25 parts it is compound
Peptizaiton object B.
The auxiliary agent：In mass ratio 3：1~2：0.1 takes carboxymethyl cellulose, sodium phosphate, maleic anhydride mixing to get helping
Agent.
The surfactant：According to the mass fraction 4：1 ~ 2 takes neopelex, sodium secondary alkyl sulfonate mixing,
Up to surfactant.
The preparation method of the composite diffusion agent A, includes the following steps：
（1）In mass ratio 5 ~ 8：1：20 ~ 30 take humic acid potassium, KOH, auxiliary material, water to be mixed, and stand, supernatant is taken to adjust pH,
It stands, filters, filter residue is taken to clean, it is dry, obtain dried object；
（2）In 28 ~ 40 DEG C, acrylic acid in mass ratio 3 is taken：2：30 ~ 40 are added KOH, water is mixed, and addition acrylic acid quality 2 ~
The initiator of acrylic acid quality 15 ~ 20% is added in 5 times of dried object mixing, heating, and insulation reaction is cooling, discharges to get compound
Peptizaiton object A.
The step（1）In auxiliary material：In mass ratio 4：3 ~ 6 take sodium alginate, dichloroethanes mixing to get auxiliary material.
The step（2）In initiator：Ammonium persulfate, sodium peroxydisulfate, any one in potassium peroxydisulfate.
The preparation method of the composite diffusion agent B, includes the following steps：
S1. dehydroabietylamine in mass ratio 1 is taken：10 ~ 15, which are added methanol, is mixed, and methyl acrylate is added, keeps the temperature in 40 ~ 55 DEG C
Reaction is evaporated under reduced pressure, and vacuum concentration obtains concentrate, takes concentrate in mass ratio 1：6 ~ 10, which are added solvent A, is uniformly mixed, vacuum
Evaporation, obtains concentrate, spare；
S2. it takes carbonic acid boron dry, obtains dry carbonic acid boron, take dry carbonic acid boron temperature programming to 400 ~ 450 DEG C, heat preservation calcining is cold
But, it discharges, obtains porous boron oxide, in mass ratio 1：4 ~ 7 take porous oxidation boron and dopamine solution to mix, ultrasonic immersing, filtering,
Porous oxidation boron must be pre-processed；
S3. in mass ratio 5：1 ~ 2 takes concentrate, pretreatment porous oxidation boron mixing, by ratio of grinding media to material 20 ~ 30：1 is added zirconia ball
Pearl ball milling is ground, ball milling object, in mass ratio 1 are taken：4 ~ 7 be added solvent B impregnate, microwave treatment, be evaporated in vacuo, be concentrated under reduced pressure to get
Composite diffusion agent B.
Solvent A in the step S1：In mass ratio 1 ~ 4：3 take methanol, ethylenediamine mixing to get solvent A.
Dopamine solution in the step S2：In mass ratio 6：1~2：0.1 takes Dopamine hydrochloride, sodium carbonate, calcium chloride
Mixing is to get dopamine solution.
Solvent B in the step S3：In mass ratio 1：2~5：15 ~ 20 take formaldehyde, ammonium carbonate, water mixing to get solvent
B。
The present invention is compared with other methods, and advantageous effects are：
The present invention is modified humic acid using KOH, then using acrylic acid as monomer, graft copolymerization is carried out, in effective dispersant
System introduces strongly active group, and composite diffusion agent A processed is greatly improved the dispersibility and stability of water-coal-slurry, with de-
Hydrogen abietyl amine, carbonic acid boron etc. are raw material, containing groups such as a large amount of unsaturated double-bonds, carbonyls, the chemical property in coal slurry dispersion process
It is relatively active, it can be bonded with being vivaciously centrally formed for coal particle surface, so that the floatability of coal grain is improved, due to coal particle surface charge point
Cloth is uneven, and existing polar fraction has nonpolar position again, and the flotation effect of itself occurs, is helped using rilanit special cooperation
The nonpolar position of coal grain is adsorbed in agent, and hydrophilic radical therein can be adsorbed with the polar fraction of coal grain,
Be changed into script hydrophilic site hydrophobic, improve coal grain floatability, dispersibility, after being adsorbed in coal particle surface, can around shape
At hydration shell, the oil droplet for preventing coal particle surface from adsorbing merges, to make nonpolar oily substance is good to be dispersed in water, increases
Its big contact with coal particle surface, increases the dispersion performance of water-coal-slurry.
Specific embodiment
Auxiliary agent：In mass ratio 3：1~2：0.1 takes carboxymethyl cellulose, sodium phosphate, maleic anhydride mixing to get auxiliary agent.
Dopamine solution：In mass ratio 6：1~2：0.1 takes Dopamine hydrochloride, sodium carbonate, calcium chloride mixing to get dopamine
Solution.
Surfactant：According to the mass fraction 4：1 ~ 2 take neopelex, sodium secondary alkyl sulfonate mixing to get
Surfactant.
Auxiliary material：In mass ratio 4：3 ~ 6 take sodium alginate, dichloroethanes mixing to get auxiliary material.
Initiator：Ammonium persulfate, sodium peroxydisulfate, any one in potassium peroxydisulfate.
Solvent A：In mass ratio 1 ~ 4：3 take methanol, ethylenediamine mixing to get solvent A.
Solvent B：In mass ratio 1：2~5：15 ~ 20 take formaldehyde, ammonium carbonate, water mixing to get solvent.
The preparation method of composite diffusion agent A, includes the following steps：
（1）In mass ratio 5 ~ 8：1：20 ~ 30 take humic acid potassium, KOH, water mixing, stir 2 ~ 5h with 300 ~ 450r/min, stand 20
~ for 24 hours, and supernatant is taken, adjusts pH to 2 ~ 3 with the HCl solution of concentration 0.1mol/L, stand 20 ~ for 24 hours, it filters, takes filter residue filter residue
After the deionized water cleaning that 2 ~ 5 times of quality, 60 ~ 75 DEG C of oven dryings are moved to water content lower than 5%, obtain dried object；
（2）In 28 ~ 40 DEG C, acrylic acid in mass ratio 3 is taken：2：30 ~ 40 are added KOH, water mixing, are stirred with 250 ~ 400r/min magnetic force
25 ~ 40min is mixed, 2 ~ 5 times of acrylic acid quality of dried object mixing is added, is warming up to 75 ~ 85 DEG C, acrylic acid quality 15 ~ 20% is added
Initiator, 2 ~ 4h of insulation reaction, cooled to room temperature, discharge to get composite diffusion agent A.
The preparation method of composite diffusion agent B, includes the following steps：
S1. dehydroabietylamine in mass ratio 1 is taken：10 ~ 15 are added methanol mixing, with 350 ~ 500r/min, 30 ~ 50min of magnetic agitation,
Methyl acrylate is added, in 40 ~ 55 DEG C of insulation reactions 20 ~ for 24 hours, is evaporated under reduced pressure, vacuum concentration obtains concentrate, take concentrate by
Mass ratio 1：6 ~ 10 be added solvent As be uniformly mixed, be evaporated in vacuo to water content in 5% hereinafter, concentrate, it is spare；
S2. carbonic acid boron is taken to be placed in 70 ~ 80 DEG C of baking ovens, it is dry to constant weight, dry carbonic acid boron is obtained, dry carbonic acid boron is taken to move into Muffle
In furnace, 400 ~ 450 DEG C, after 3 ~ 5h is calcined in heat preservation are warming up to 6 ~ 10 DEG C/min rate program, cooled to room temperature discharges,
Porous boron oxide, in mass ratio 1：4 ~ 7 take porous oxidation boron and dopamine solution to mix, under 45 ~ 50kHz supersonic frequency,
2 ~ 4h of ultrasonic immersing, filtering, must pre-process porous oxidation boron；
S3. in mass ratio 5：1 ~ 2 takes concentrate, pretreatment porous oxidation boron to mix in ball grinder, by ratio of grinding media to material 20 ~ 30：1 is added
Zirconium oxide ball milling pearl takes ball milling object, in mass ratio 1 with 250 ~ 350r/min, 20 ~ 45min of ball milling：4 ~ 7 are added solvent B in water-bath
2 ~ 4h is impregnated at 35 ~ 45 DEG C, with 300W 5 ~ 10min of microwave treatment, is evaporated in vacuo, is concentrated under reduced pressure into the 30 ~ 45% of original volume, i.e.,
Obtain composite diffusion agent B.
A kind of coal water slurry dispersing agent, according to the mass fraction, including following component：4 ~ 10 parts of rilanit specials, 2 ~ 5 parts help
Agent, 5 ~ 10 parts of surfactants, 30 ~ 50 parts of water, which is characterized in that further include：30 ~ 55 parts of composite diffusion agent A, 15 ~ 25
Part composite diffusion agent B.
A kind of preparation method of coal water slurry dispersing agent, includes the following steps：
（1）According to the mass fraction, 30 ~ 55 parts of composite diffusion agent A, 15 ~ 25 parts of composite diffusion agent B, 4 ~ 10 parts of hydrogen are taken
Change castor oil, 2 ~ 5 parts of auxiliary agents, 5 ~ 10 parts of surfactants, 30 ~ 50 parts of water；
（2）In 30 ~ 45 DEG C, composite diffusion agent A, rilanit special, auxiliary agent, water is taken to mix in blender, with 300 ~ 500r/
Min stirs 25 ~ 40min, 60 ~ 80 DEG C of addition surfactants, composite diffusion agent B mixing is warming up to, with 400 ~ 600r/
Min stirs 20 ~ 45min to get coal water slurry dispersing agent.
Embodiment 1
Auxiliary agent：In mass ratio 3：1：0.1 takes carboxymethyl cellulose, sodium phosphate, maleic anhydride mixing to get auxiliary agent.
Dopamine solution：In mass ratio 6：1：0.1 takes Dopamine hydrochloride, sodium carbonate, calcium chloride mixing molten to get dopamine
Liquid.
Surfactant：According to the mass fraction 4：1 takes neopelex, sodium secondary alkyl sulfonate mixing to get table
Face activating agent.
Auxiliary material：In mass ratio 4：3 take sodium alginate, dichloroethanes mixing to get auxiliary material.
Initiator：Ammonium persulfate.
Solvent A：In mass ratio 1：3 take methanol, ethylenediamine mixing to get solvent A.
Solvent B：In mass ratio 1：2：15 take formaldehyde, ammonium carbonate, water mixing to get solvent.
The preparation method of composite diffusion agent A, includes the following steps：
（1）In mass ratio 5：1：20 take humic acid potassium, KOH, water mixing, stir 2h with 300r/min, stand 20h, take supernatant,
PH to 2 is adjusted with the HCl solution of concentration 0.1mol/L, 20h is stood, filters, take the deionized water of 2 times of filter residue filter residue quality clear
After washing, 60 DEG C of oven dryings are moved to water content lower than 5%, obtain dried object；
（2）In 28 DEG C, acrylic acid in mass ratio 3 is taken：2：30 are added KOH, water mixing, with 250r/min magnetic agitation 25min, add
The dried object mixing for entering 2 times of acrylic acid quality, is warming up to 75 DEG C, is added the initiator of acrylic acid quality 15%, insulation reaction 2h,
Cooled to room temperature discharges to get composite diffusion agent A.
The preparation method of composite diffusion agent B, includes the following steps：
S1. dehydroabietylamine in mass ratio 1 is taken：10 are added methanol mixing, and with 350r/min magnetic agitation 30min, acrylic acid is added
Methyl esters is evaporated under reduced pressure in 40 DEG C of insulation reaction 20h, and vacuum concentration obtains concentrate, takes concentrate in mass ratio 1：6 are added solvent
A be uniformly mixed, be evaporated in vacuo to water content in 5% hereinafter, concentrate, it is spare；
S2. carbonic acid boron is taken to be placed in 70 DEG C of baking ovens, it is dry to constant weight, dry carbonic acid boron is obtained, dry carbonic acid boron is taken to move into Muffle furnace
In, 400 DEG C, after 3h is calcined in heat preservation are warming up to 6 DEG C/min rate program, cooled to room temperature, discharging obtains porous oxidation
Boron, in mass ratio 1：4 take porous oxidation boron and dopamine solution to mix, under 45kHz supersonic frequency, ultrasonic immersing 2h, and filtering,
Porous oxidation boron must be pre-processed；
S3. in mass ratio 5：1 takes concentrate, pretreatment porous oxidation boron to mix in ball grinder, by ratio of grinding media to material 20：1 is added oxidation
Zirconium ball milling pearl takes ball milling object, in mass ratio 1 with 250r/min ball milling 20min：4 addition solvent B impregnate 2h at 35 DEG C of water-bath,
With 300W microwave treatment 5min, it is evaporated in vacuo, is concentrated under reduced pressure into the 30% of original volume to get composite diffusion agent B.
A kind of coal water slurry dispersing agent, according to the mass fraction, including following component：4 parts of rilanit specials, 2 parts of auxiliary agents, 5 parts
Surfactant, 30 parts of water, which is characterized in that further include：30 parts of composite diffusion agent A, 15 parts of composite diffusion agent B.
A kind of preparation method of coal water slurry dispersing agent, includes the following steps：
（1）According to the mass fraction, 30 parts of composite diffusion agent A, 15 parts of composite diffusion agent B, 4 parts of rilanit specials, 2 are taken
Part auxiliary agent, 5 parts of surfactants, 30 parts of water；
（2）In 30 DEG C, takes composite diffusion agent A, rilanit special, auxiliary agent, water to mix in blender, stirred with 300r/min
25min is warming up to 60 DEG C of addition surfactants, composite diffusion agent B mixing, with 400r/min stirring 20min to get water
Coal-slurry dispersing agent.
Embodiment 2
Auxiliary agent：In mass ratio 3：2：0.1 takes carboxymethyl cellulose, sodium phosphate, maleic anhydride mixing to get auxiliary agent.
Dopamine solution：In mass ratio 6：2：0.1 takes Dopamine hydrochloride, sodium carbonate, calcium chloride mixing molten to get dopamine
Liquid.
Surfactant：According to the mass fraction 4：2 take neopelex, sodium secondary alkyl sulfonate mixing to get table
Face activating agent.
Auxiliary material：In mass ratio 4：6 take sodium alginate, dichloroethanes mixing to get auxiliary material.
Initiator：Sodium peroxydisulfate.
Solvent A：In mass ratio 4：3 take methanol, ethylenediamine mixing to get solvent A.
Solvent B：In mass ratio 1：5：20 take formaldehyde, ammonium carbonate, water mixing to get solvent.
The preparation method of composite diffusion agent A, includes the following steps：
（1）In mass ratio 8：1：30 take humic acid potassium, KOH, water mixing, stir 5h with 450r/min, stand for 24 hours, take supernatant,
PH to 3 is adjusted with the HCl solution of concentration 0.1mol/L, is stood for 24 hours, is filtered, take the deionized water of 5 times of filter residue filter residue quality clear
After washing, 75 DEG C of oven dryings are moved to water content lower than 5%, obtain dried object；
（2）In 40 DEG C, acrylic acid in mass ratio 3 is taken：2：40 are added KOH, water mixing, with 400r/min magnetic agitation 40min, add
The dried object mixing for entering 5 times of acrylic acid quality, is warming up to 85 DEG C, is added the initiator of acrylic acid quality 20%, insulation reaction 4h,
Cooled to room temperature discharges to get composite diffusion agent A.
The preparation method of composite diffusion agent B, includes the following steps：
S1. dehydroabietylamine in mass ratio 1 is taken：15 are added methanol mixing, and with 500r/min magnetic agitation 50min, acrylic acid is added
Methyl esters for 24 hours in 55 DEG C of insulation reactions is evaporated under reduced pressure, and vacuum concentration obtains concentrate, takes concentrate in mass ratio 1：10 additions are molten
Agent A be uniformly mixed, be evaporated in vacuo to water content in 5% hereinafter, concentrate, it is spare；
S2. carbonic acid boron is taken to be placed in 80 DEG C of baking ovens, it is dry to constant weight, dry carbonic acid boron is obtained, dry carbonic acid boron is taken to move into Muffle furnace
In, 450 DEG C, after 5h is calcined in heat preservation are warming up to 10 DEG C/min rate program, cooled to room temperature, discharging obtains porous oxidation
Boron, in mass ratio 1：7 take porous oxidation boron and dopamine solution to mix, under 50kHz supersonic frequency, ultrasonic immersing 4h, and filtering,
Porous oxidation boron must be pre-processed；
S3. in mass ratio 5：2 take concentrate, pretreatment porous oxidation boron to mix in ball grinder, by ratio of grinding media to material 30：1 is added oxidation
Zirconium ball milling pearl takes ball milling object, in mass ratio 1 with 350r/min ball milling 45min：7 addition solvent B impregnate 4h at 45 DEG C of water-bath,
With 300W microwave treatment 10min, it is evaporated in vacuo, is concentrated under reduced pressure into the 45% of original volume to get composite diffusion agent B.
A kind of coal water slurry dispersing agent, according to the mass fraction, including following component：10 parts of rilanit specials, 5 parts of auxiliary agents, 10
Part surfactant, 50 parts of water, which is characterized in that further include：55 parts of composite diffusion agent A, 25 parts of composite diffusion agents
B。
A kind of preparation method of coal water slurry dispersing agent, includes the following steps：
（1）According to the mass fraction, take 55 parts of composite diffusion agent A, 25 parts of composite diffusion agent B, 10 parts of rilanit specials,
5 parts of auxiliary agents, 10 parts of surfactants, 50 parts of water；
（2）In 45 DEG C, takes composite diffusion agent A, rilanit special, auxiliary agent, water to mix in blender, stirred with 500r/min
40min is warming up to 80 DEG C of addition surfactants, composite diffusion agent B mixing, with 600r/min stirring 45min to get water
Coal-slurry dispersing agent.
Embodiment 3
Auxiliary agent：In mass ratio 3：1：0.1 takes carboxymethyl cellulose, sodium phosphate, maleic anhydride mixing to get auxiliary agent.
Dopamine solution：In mass ratio 6：1：0.1 takes Dopamine hydrochloride, sodium carbonate, calcium chloride mixing molten to get dopamine
Liquid.
Surfactant：According to the mass fraction 4：1 takes neopelex, sodium secondary alkyl sulfonate mixing to get table
Face activating agent.
Auxiliary material：In mass ratio 4：4 take sodium alginate, dichloroethanes mixing to get auxiliary material.
Initiator：Potassium peroxydisulfate.
Solvent A：In mass ratio 3：3 take methanol, ethylenediamine mixing to get solvent A.
Solvent B：In mass ratio 1：3：17 take formaldehyde, ammonium carbonate, water mixing to get solvent.
The preparation method of composite diffusion agent A, includes the following steps：
（1）In mass ratio 6：1：25 take humic acid potassium, KOH, water mixing, stir 4h with 375r/min, stand 22h, take supernatant,
PH to 2 is adjusted with the HCl solution of concentration 0.1mol/L, 22h is stood, filters, take the deionized water of 3 times of filter residue filter residue quality clear
After washing, 67 DEG C of oven dryings are moved to water content lower than 5%, obtain dried object；
（2）In 34 DEG C, acrylic acid in mass ratio 3 is taken：2：35 are added KOH, water mixing, with 320r/min magnetic agitation 35min, add
The dried object mixing for entering 3 times of acrylic acid quality, is warming up to 80 DEG C, is added the initiator of acrylic acid quality 17%, insulation reaction 3h,
Cooled to room temperature discharges to get composite diffusion agent A.
The preparation method of composite diffusion agent B, includes the following steps：
S1. dehydroabietylamine in mass ratio 1 is taken：13 are added methanol mixing, and with 420r/min magnetic agitation 40min, acrylic acid is added
Methyl esters is evaporated under reduced pressure in 47 DEG C of insulation reaction 22h, and vacuum concentration obtains concentrate, takes concentrate in mass ratio 1：8 are added solvent
A be uniformly mixed, be evaporated in vacuo to water content in 5% hereinafter, concentrate, it is spare；
S2. carbonic acid boron is taken to be placed in 75 DEG C of baking ovens, it is dry to constant weight, dry carbonic acid boron is obtained, dry carbonic acid boron is taken to move into Muffle furnace
In, 425 DEG C, after 4h is calcined in heat preservation are warming up to 8 DEG C/min rate program, cooled to room temperature, discharging obtains porous oxidation
Boron, in mass ratio 1：5 take porous oxidation boron and dopamine solution to mix, under 47kHz supersonic frequency, ultrasonic immersing 3h, and filtering,
Porous oxidation boron must be pre-processed；
S3. in mass ratio 5：1 takes concentrate, pretreatment porous oxidation boron to mix in ball grinder, by ratio of grinding media to material 25：1 is added oxidation
Zirconium ball milling pearl takes ball milling object, in mass ratio 1 with 300r/min ball milling 35min：5 addition solvent B impregnate 3h at 40 DEG C of water-bath,
With 300W microwave treatment 7min, it is evaporated in vacuo, is concentrated under reduced pressure into the 37% of original volume to get composite diffusion agent B.
A kind of coal water slurry dispersing agent, according to the mass fraction, including following component：7 parts of rilanit specials, 4 parts of auxiliary agents, 7 parts
Surfactant, 40 parts of water, which is characterized in that further include：42 parts of composite diffusion agent A, 20 parts of composite diffusion agent B.
A kind of preparation method of coal water slurry dispersing agent, includes the following steps：
（1）According to the mass fraction, 42 parts of composite diffusion agent A, 20 parts of composite diffusion agent B, 7 parts of rilanit specials, 3 are taken
Part auxiliary agent, 7 parts of surfactants, 40 parts of water；
（2）In 37 DEG C, takes composite diffusion agent A, rilanit special, auxiliary agent, water to mix in blender, stirred with 400r/min
35min is warming up to 70 DEG C of addition surfactants, composite diffusion agent B mixing, with 500r/min stirring 35min to get water
Coal-slurry dispersing agent.
Comparative example 1：It is essentially identical with the preparation method of embodiment 2, it has only the difference is that lacking composite diffusion agent A.
Comparative example 2：It is essentially identical with the preparation method of embodiment 2, it has only the difference is that lacking composite diffusion agent B.
Comparative example 3：The coal water slurry dispersing agent of Yancheng City company production.
The dispersing agent of coal water slurry dispersing agent prepared by above-described embodiment and comparative example is separately added into same batch water coal
It is tested for the property in slurry, specific test result is shown in Table 1.
Table 1：
In summary, coal water slurry dispersing agent comprehensive performance of the invention is more preferable, and be worth promoting use.
Claims (10)
1. a kind of coal water slurry dispersing agent, according to the mass fraction, including following component：4 ~ 10 parts of rilanit specials, 2 ~ 5 parts of auxiliary agents, 5
~ 10 parts of surfactants, 30 ~ 50 parts of water, which is characterized in that further include：30 ~ 55 parts of composite diffusion agent A, 15 ~ 25 parts it is multiple
Close peptizaiton object B.
2. a kind of coal water slurry dispersing agent according to claim 1, which is characterized in that the auxiliary agent：In mass ratio 3：1~2：0.1
Take carboxymethyl cellulose, sodium phosphate, maleic anhydride mixing to get auxiliary agent.
3. a kind of coal water slurry dispersing agent according to claim 1, which is characterized in that the surfactant：By mass fraction
Meter 4：1 ~ 2 takes neopelex, sodium secondary alkyl sulfonate mixing to get surfactant.
4. a kind of coal water slurry dispersing agent according to claim 1, which is characterized in that the preparation of the composite diffusion agent A
Method includes the following steps：
（1）In mass ratio 5 ~ 8：1：20 ~ 30 take humic acid potassium, KOH, auxiliary material, water to be mixed, and stand, supernatant is taken to adjust pH,
It stands, filters, filter residue is taken to clean, it is dry, obtain dried object；
（2）In 28 ~ 40 DEG C, acrylic acid in mass ratio 3 is taken：2：30 ~ 40 are added KOH, water is mixed, and addition acrylic acid quality 2 ~
The initiator of acrylic acid quality 15 ~ 20% is added in 5 times of dried object mixing, heating, and insulation reaction is cooling, discharges to get compound
Peptizaiton object A.
5. a kind of coal water slurry dispersing agent according to claim 4, which is characterized in that the step（1）In auxiliary material：By quality
Than 4：3 ~ 6 take sodium alginate, dichloroethanes mixing to get auxiliary material.
6. a kind of coal water slurry dispersing agent according to claim 4, which is characterized in that the step（2）In initiator：Over cure
Sour ammonium, sodium peroxydisulfate, any one in potassium peroxydisulfate.
7. a kind of coal water slurry dispersing agent according to claim 1, which is characterized in that the preparation of the composite diffusion agent B
Method includes the following steps：
S1. dehydroabietylamine in mass ratio 1 is taken：10 ~ 15, which are added methanol, is mixed, and methyl acrylate is added, keeps the temperature in 40 ~ 55 DEG C
Reaction is evaporated under reduced pressure, and vacuum concentration obtains concentrate, takes concentrate in mass ratio 1：6 ~ 10, which are added solvent A, is uniformly mixed, vacuum
Evaporation, obtains concentrate, spare；
S2. it takes carbonic acid boron dry, obtains dry carbonic acid boron, take dry carbonic acid boron temperature programming to 400 ~ 450 DEG C, heat preservation calcining is cold
But, it discharges, obtains porous boron oxide, in mass ratio 1：4 ~ 7 take porous oxidation boron and dopamine solution to mix, ultrasonic immersing, filtering,
Porous oxidation boron must be pre-processed；
S3. in mass ratio 5：1 ~ 2 takes concentrate, pretreatment porous oxidation boron mixing, by ratio of grinding media to material 20 ~ 30：1 is added zirconia ball
Pearl ball milling is ground, ball milling object, in mass ratio 1 are taken：4 ~ 7 be added solvent B impregnate, microwave treatment, be evaporated in vacuo, be concentrated under reduced pressure to get
Composite diffusion agent B.
8. a kind of coal water slurry dispersing agent according to claim 7, which is characterized in that the solvent A in the step S1：By quality
Than 1 ~ 4：3 take methanol, ethylenediamine mixing to get solvent A.
9. a kind of coal water slurry dispersing agent according to claim 7, which is characterized in that the dopamine solution in the step S2：
In mass ratio 6：1~2：0.1 takes Dopamine hydrochloride, sodium carbonate, calcium chloride mixing to get dopamine solution.
10. a kind of coal water slurry dispersing agent according to claim 7, which is characterized in that the solvent B in the step S3：By matter
Measure ratio 1：2~5：15 ~ 20 take formaldehyde, ammonium carbonate, water mixing to get solvent B.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63270796A (en) * | 1986-12-12 | 1988-11-08 | Ube Ind Ltd | Production of dispersant for coal-water slurry |
| CN1136583A (en) * | 1996-02-08 | 1996-11-27 | 中国科学院感光化学研究所 | Water base ternary mixed fuel composed of coal, water and oil |
| CN1236806A (en) * | 1999-03-03 | 1999-12-01 | 苏宏文 | Oil-water-coal slurry and its preparing process |
| CN101747964A (en) * | 2010-01-22 | 2010-06-23 | 浙江大学 | Water coal slurry and preparation method thereof |
| CN105567354A (en) * | 2014-10-13 | 2016-05-11 | 太原市天鼎恒硂外加剂科技发展有限公司 | Dispersant for coal water slurry and preparation method thereof |
-
2018
- 2018-07-05 CN CN201810727103.6A patent/CN108913242B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63270796A (en) * | 1986-12-12 | 1988-11-08 | Ube Ind Ltd | Production of dispersant for coal-water slurry |
| CN1136583A (en) * | 1996-02-08 | 1996-11-27 | 中国科学院感光化学研究所 | Water base ternary mixed fuel composed of coal, water and oil |
| CN1236806A (en) * | 1999-03-03 | 1999-12-01 | 苏宏文 | Oil-water-coal slurry and its preparing process |
| CN101747964A (en) * | 2010-01-22 | 2010-06-23 | 浙江大学 | Water coal slurry and preparation method thereof |
| CN105567354A (en) * | 2014-10-13 | 2016-05-11 | 太原市天鼎恒硂外加剂科技发展有限公司 | Dispersant for coal water slurry and preparation method thereof |
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