CN109796564A - A kind of polycarboxylic-acid coal water slurry dispersing agent and preparation method thereof - Google Patents
A kind of polycarboxylic-acid coal water slurry dispersing agent and preparation method thereof Download PDFInfo
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- CN109796564A CN109796564A CN201811580804.8A CN201811580804A CN109796564A CN 109796564 A CN109796564 A CN 109796564A CN 201811580804 A CN201811580804 A CN 201811580804A CN 109796564 A CN109796564 A CN 109796564A
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Abstract
The invention discloses a kind of polycarboxylic-acid coal water slurry dispersing agents and preparation method thereof, specifically include the raw material of following number (by mass): 30-40 parts of polycarboxylic acids polymeric monomer, 2-10 parts of acrylic acid, 15-25 parts of the third vinyl sulfonic acid sodium, 2-8 parts of hydroquinone, 0.5-5 parts of oxidant, 2-15 parts of alkali and 5-10 parts of isopropanol.The present invention is by using the free radical polymerization in aqueous solution of polycarboxylic acids polymeric monomer, acrylic acid and sodium styrene sulfonate, have the characteristics that flexible structure, molecular weight and molecular structure can be changed according to actual needs, potassium peroxydisulfate and isopropanol control reaction speed and reaction environment temperature is added, to improve product yield, obtained dispersing agent reduces production cost under the premise of guaranteeing that its is functional.
Description
Technical field
The present invention relates to dispersing agent field, in particular to a kind of polycarboxylic-acid coal water slurry dispersing agent and preparation method thereof.
Background technique
China is relatively abundanter and petroleum resources scarcity relatively the country of a coal resources, as clean energy technology
One of COAL-WATER SLURRY TECHNOLOGY, can not only alleviate the in short supply of petroleum resources, while also reducing the discharge of SO2 and NOx, thus by
To the attention of various countries.As the core of COAL-WATER SLURRY TECHNOLOGY, the exploitation of slurries additive agent plays very important effect.
Dispersing agent plays very important effect in the preparation of water-coal-slurry, and existing coal water slurry dispersing agent mainly has naphthalene
System, polyacrylic, polyolefin, Lignins, humic acid system and non-ionic dispersing agent etc..But the water coal of these types
It is inflexible to starch dispersant structure, molecular weight and molecular structure can not be changed according to actual needs.
Therefore, it is necessary to solve the above problems to invent a kind of polycarboxylic-acid coal water slurry dispersing agent and preparation method thereof.
Summary of the invention
The purpose of the present invention is to provide a kind of polycarboxylic-acid coal water slurry dispersing agents and preparation method thereof, by using poly- carboxylic
The free radical polymerization in aqueous solution of sour polymeric monomer, acrylic acid and sodium styrene sulfonate, have flexible structure, can be according to practical need
The characteristics of changing molecular weight and molecular structure, to solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme: a kind of polycarboxylic-acid coal water slurry dispersing agent, specific to wrap
Include the raw material of following number (by mass): 30-40 parts of polycarboxylic acids polymeric monomer, 2-10 parts of acrylic acid, the third vinyl sulfonic acid sodium 15-25
Part, 2-8 parts of hydroquinone, 0.5-5 parts of oxidant, 2-15 parts of alkali and 5-10 parts of isopropanol.
Preferably, the oxidant is specially one of hydrogen peroxide, ammonium persulfate or potassium peroxydisulfate.
Preferably, the alkali is specially one of sodium hydroxide or potassium hydroxide.
The invention also discloses a kind of preparation methods of polycarboxylic-acid coal water slurry dispersing agent, specifically comprise the following steps:
Step 1 chooses 500ml four-hole boiling flask and is cleaned and dried, be then added in 500ml four-hole boiling flask it is appropriate go from
Sub- water, 2-8 parts of hydroquinone and 5-10 parts of isopropanol, heat four-hole boiling flask using shell type thermostat；
Step 2, respectively with dropping funel it is continuous, 30-40 parts of polycarboxylic acids polymeric monomer, 2-10 parts of acrylic acid, the third ethylene are added dropwise at a slow speed
15-25 parts of sodium sulfonate, 0.5-5 parts of oxidant and 2-15 parts of alkali, after dripping off, keep the temperature four-hole boiling flask, make in four-hole boiling flask
Solvent carry out copolyreaction, during copolyreaction, four-hole boiling flask is sealing state, wherein reaction principle are as follows:
Oxidant and isopropanol is added in polycarboxylic acids polymeric monomer, acrylic acid and the third vinyl sulfonic acid sodium free radical polymerization in aqueous solution
Reaction speed is controlled, controls reaction environment temperature, wherein copolyreaction formula are as follows:
Step 3 is slowly stirred production after four-hole boiling flask is cooled to room temperature with moisture extra in condenser pipe discharge four-hole boiling flask
Object, obtaining orange transparency liquid is polycarboxylic-acid coal water slurry dispersing agent.
Preferably, in the step 1, temperature is heated to 70-100 DEG C in four-hole boiling flask.
Preferably, in the step 2, the holding temperature of four-hole boiling flask is 70-80 DEG C, soaking time 3-5h, the oxygen
Agent is potassium peroxydisulfate, and the alkali is sodium hydroxide.
Technical effect and advantage of the invention:
1, the present invention is by using the free radical polymerization in aqueous solution of polycarboxylic acids polymeric monomer, acrylic acid and sodium styrene sulfonate, tool
There is flexible structure, the characteristics of molecular weight and molecular structure can be changed according to actual needs；
2, it is obtained by the way that potassium peroxydisulfate and isopropanol control reaction speed and reaction environment temperature is added with improving product yield
The dispersing agent arrived reduces production cost under the premise of guaranteeing that its is functional；
3, present invention process is simple, and equipment requirement is low, strong operability, has good society generalization application.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Embodiment 1:
A kind of polycarboxylic-acid coal water slurry dispersing agent, wherein used raw material includes: polycarboxylic acids polymeric monomer, acrylic acid, the third ethylene
Sodium sulfonate, hydroquinone, oxidant, alkali and isopropanol.
Wherein, the oxidant is specially one of hydrogen peroxide, ammonium persulfate or potassium peroxydisulfate, and the alkali is specially
One of sodium hydroxide or potassium hydroxide.
And specific in the present embodiment are as follows: oxidant is potassium peroxydisulfate, and alkali is sodium hydroxide, 35 parts of polycarboxylic acids polymeric monomer,
5 parts of acrylic acid, 15 parts of the third vinyl sulfonic acid sodium, 4 parts of hydroquinone, 3 parts of potassium peroxydisulfate, 5 parts of sodium hydroxide and isopropanol and 5 parts.
The preparation method of above-mentioned polycarboxylic-acid coal water slurry dispersing agent, specifically comprises the following steps:
Step 1 chooses 500ml four-hole boiling flask and is cleaned and dried, be then added in 500ml four-hole boiling flask it is appropriate go from
Four-hole boiling flask is heated to 70 DEG C using shell type thermostat by sub- water, 4 parts of hydroquinone and 5 parts of isopropanol；
Step 2, respectively with dropping funel it is continuous, 35 parts of polycarboxylic acids polymeric monomer, 5 parts of acrylic acid, the third vinyl sulfonic acid sodium are added dropwise at a slow speed
15 parts, 3 parts of potassium peroxydisulfate and 5 parts of sodium hydroxide after dripping off, four-hole boiling flask are kept the temperature at 70 DEG C, soaking time 3h makes four mouthfuls
Solvent in flask carries out copolyreaction, and during copolyreaction, four-hole boiling flask is sealing state, wherein reaction principle are as follows:
Oxidant and isopropanol is added in polycarboxylic acids polymeric monomer, acrylic acid and the third vinyl sulfonic acid sodium free radical polymerization in aqueous solution
Reaction speed is controlled, controls reaction environment temperature, wherein copolyreaction formula are as follows:
Step 3 is slowly stirred production after four-hole boiling flask is cooled to room temperature with moisture extra in condenser pipe discharge four-hole boiling flask
Object, obtaining orange transparency liquid is polycarboxylic-acid coal water slurry dispersing agent.
Embodiment 2:
A kind of polycarboxylic-acid coal water slurry dispersing agent, wherein it is potassium peroxydisulfate that used raw material, which includes: oxidant, alkali is hydroxide
Sodium, polycarboxylic acids polymeric monomer, acrylic acid, the third vinyl sulfonic acid sodium, hydroquinone, oxidant, alkali and isopropanol.
Wherein, the oxidant is specially one of hydrogen peroxide, ammonium persulfate or potassium peroxydisulfate, and the alkali is specially
One of sodium hydroxide or potassium hydroxide.
And specific in the present embodiment are as follows: 35 parts of polycarboxylic acids polymeric monomer, 6 parts of acrylic acid, 20 parts of the third vinyl sulfonic acid sodium, to benzene
4 parts of diphenol, 4 parts of potassium peroxydisulfate, 5 parts of sodium hydroxide and isopropanol and 6 parts.
The preparation method of above-mentioned polycarboxylic-acid coal water slurry dispersing agent, specifically comprises the following steps:
Step 1 chooses 500ml four-hole boiling flask and is cleaned and dried, be then added in 500ml four-hole boiling flask it is appropriate go from
Four-hole boiling flask is heated to 80 DEG C using shell type thermostat by sub- water, 4 parts of hydroquinone and 6 parts of isopropanol；
Step 2, respectively with dropping funel it is continuous, 35 parts of polycarboxylic acids polymeric monomer, 6 parts of acrylic acid, the third vinyl sulfonic acid sodium are added dropwise at a slow speed
20 parts, 4 parts of potassium peroxydisulfate and 5 parts of sodium hydroxide after dripping off, four-hole boiling flask are kept the temperature at 72 DEG C, soaking time 3.5h makes four
Solvent in mouth flask carries out copolyreaction, and during copolyreaction, four-hole boiling flask is sealing state, wherein reaction principle
Are as follows:
Oxidant and isopropanol is added in polycarboxylic acids polymeric monomer, acrylic acid and the third vinyl sulfonic acid sodium free radical polymerization in aqueous solution
Reaction speed is controlled, controls reaction environment temperature, wherein copolyreaction formula are as follows:
Step 3 is slowly stirred production after four-hole boiling flask is cooled to room temperature with moisture extra in condenser pipe discharge four-hole boiling flask
Object, obtaining orange transparency liquid is polycarboxylic-acid coal water slurry dispersing agent.
Embodiment 3:
A kind of polycarboxylic-acid coal water slurry dispersing agent, wherein it is potassium peroxydisulfate that used raw material, which includes: oxidant, alkali is hydroxide
Sodium, polycarboxylic acids polymeric monomer, acrylic acid, the third vinyl sulfonic acid sodium, hydroquinone, oxidant, alkali and isopropanol.
Wherein, the oxidant is specially one of hydrogen peroxide, ammonium persulfate or potassium peroxydisulfate, and the alkali is specially
One of sodium hydroxide or potassium hydroxide.
And specific in the present embodiment are as follows: 32 parts of polycarboxylic acids polymeric monomer, 5 parts of acrylic acid, 20 parts of the third vinyl sulfonic acid sodium, to benzene
6 parts of diphenol, 3 parts of potassium peroxydisulfate, 5 parts of sodium hydroxide and isopropanol and 6 parts.
The preparation method of above-mentioned polycarboxylic-acid coal water slurry dispersing agent, specifically comprises the following steps:
Step 1 chooses 500ml four-hole boiling flask and is cleaned and dried, be then added in 500ml four-hole boiling flask it is appropriate go from
Four-hole boiling flask is heated to 90 DEG C using shell type thermostat by sub- water, 6 parts of hydroquinone and 6 parts of isopropanol；
Step 2, respectively with dropping funel it is continuous, 32 parts of polycarboxylic acids polymeric monomer, 5 parts of acrylic acid, the third vinyl sulfonic acid sodium are added dropwise at a slow speed
20 parts, 3 parts of potassium peroxydisulfate and 5 parts of sodium hydroxide after dripping off, four-hole boiling flask are kept the temperature at 74 DEG C, soaking time 4h makes four mouthfuls
Solvent in flask carries out copolyreaction, and during copolyreaction, four-hole boiling flask is sealing state, wherein reaction principle are as follows:
Oxidant and isopropanol is added in polycarboxylic acids polymeric monomer, acrylic acid and the third vinyl sulfonic acid sodium free radical polymerization in aqueous solution
Reaction speed is controlled, controls reaction environment temperature, wherein copolyreaction formula are as follows:
Step 3 is slowly stirred production after four-hole boiling flask is cooled to room temperature with moisture extra in condenser pipe discharge four-hole boiling flask
Object, obtaining orange transparency liquid is polycarboxylic-acid coal water slurry dispersing agent.
Embodiment 4:
A kind of polycarboxylic-acid coal water slurry dispersing agent, wherein it is potassium peroxydisulfate that used raw material, which includes: oxidant, alkali is hydroxide
Sodium, polycarboxylic acids polymeric monomer, acrylic acid, the third vinyl sulfonic acid sodium, hydroquinone, oxidant, alkali and isopropanol.
Wherein, the oxidant is specially one of hydrogen peroxide, ammonium persulfate or potassium peroxydisulfate, and the alkali is specially
One of sodium hydroxide or potassium hydroxide.
And specific in the present embodiment are as follows: 38 parts of polycarboxylic acids polymeric monomer, 6 parts of acrylic acid, 22 parts of the third vinyl sulfonic acid sodium, to benzene
3 parts of diphenol, 4 parts of potassium peroxydisulfate, 6 parts of sodium hydroxide and isopropanol and 8 parts.
The preparation method of above-mentioned polycarboxylic-acid coal water slurry dispersing agent, specifically comprises the following steps:
Step 1 chooses 500ml four-hole boiling flask and is cleaned and dried, be then added in 500ml four-hole boiling flask it is appropriate go from
Four-hole boiling flask is heated to 100 DEG C using shell type thermostat by sub- water, 3 parts of hydroquinone and 8 parts of isopropanol；
Step 2, respectively with dropping funel it is continuous, 38 parts of polycarboxylic acids polymeric monomer, 6 parts of acrylic acid, the third vinyl sulfonic acid sodium are added dropwise at a slow speed
22 parts, 4 parts of potassium peroxydisulfate and 6 parts of sodium hydroxide after dripping off, four-hole boiling flask are kept the temperature at 76 DEG C, soaking time 4.5h makes four
Solvent in mouth flask carries out copolyreaction, and during copolyreaction, four-hole boiling flask is sealing state, wherein reaction principle
Are as follows:
Oxidant and isopropanol is added in polycarboxylic acids polymeric monomer, acrylic acid and the third vinyl sulfonic acid sodium free radical polymerization in aqueous solution
Reaction speed is controlled, controls reaction environment temperature, wherein copolyreaction formula are as follows:
Step 3 is slowly stirred production after four-hole boiling flask is cooled to room temperature with moisture extra in condenser pipe discharge four-hole boiling flask
Object, obtaining orange transparency liquid is polycarboxylic-acid coal water slurry dispersing agent.
Embodiment 5:
A kind of polycarboxylic-acid coal water slurry dispersing agent, wherein it is potassium peroxydisulfate that used raw material, which includes: oxidant, alkali is hydroxide
Sodium, polycarboxylic acids polymeric monomer, acrylic acid, the third vinyl sulfonic acid sodium, hydroquinone, oxidant, alkali and isopropanol.
Wherein, the oxidant is specially one of hydrogen peroxide, ammonium persulfate or potassium peroxydisulfate, and the alkali is specially
One of sodium hydroxide or potassium hydroxide.
And specific in the present embodiment are as follows: 32 parts of polycarboxylic acids polymeric monomer, 8 parts of acrylic acid, 22 parts of the third vinyl sulfonic acid sodium, to benzene
3 parts of diphenol, 4 parts of potassium peroxydisulfate, 5 parts of sodium hydroxide and isopropanol and 6 parts.
The preparation method of above-mentioned polycarboxylic-acid coal water slurry dispersing agent, specifically comprises the following steps:
Step 1 chooses 500ml four-hole boiling flask and is cleaned and dried, be then added in 500ml four-hole boiling flask it is appropriate go from
Four-hole boiling flask is heated to 100 DEG C using shell type thermostat by sub- water, 3 parts of hydroquinone and 6 parts of isopropanol；
Step 2, respectively with dropping funel it is continuous, 32 parts of polycarboxylic acids polymeric monomer, 8 parts of acrylic acid, the third vinyl sulfonic acid sodium are added dropwise at a slow speed
22 parts, 4 parts of potassium peroxydisulfate and 5 parts of sodium hydroxide after dripping off, four-hole boiling flask are kept the temperature at 80 DEG C, soaking time 5h makes four mouthfuls
Solvent in flask carries out copolyreaction, and during copolyreaction, four-hole boiling flask is sealing state, wherein reaction principle are as follows:
Oxidant and isopropanol is added in polycarboxylic acids polymeric monomer, acrylic acid and the third vinyl sulfonic acid sodium free radical polymerization in aqueous solution
Reaction speed is controlled, controls reaction environment temperature, wherein copolyreaction formula are as follows:
Step 3 is slowly stirred production after four-hole boiling flask is cooled to room temperature with moisture extra in condenser pipe discharge four-hole boiling flask
Object, obtaining orange transparency liquid is polycarboxylic-acid coal water slurry dispersing agent.
By the available 5 kinds of polycarboxylic-acid coal water slurry dispersing agents of above 5 groups of embodiments, by this 5 kinds of polycarboxylic-acid water coals
It starches dispersing agent to test into performance row respectively, as a result show that the performance of the polycarboxylic-acid coal water slurry dispersing agent in 5 groups of embodiments has
Different promotions has by using the free radical polymerization in aqueous solution of polycarboxylic acids polymeric monomer, acrylic acid and sodium styrene sulfonate
Flexible structure can change the characteristics of molecular weight and molecular structure according to actual needs, and potassium peroxydisulfate and isopropanol control is added
Reaction speed and reaction environment temperature, to improve product yield, obtained dispersing agent under the premise of guaranteeing that its is functional,
Reduce production cost.
Table 1 is embodiment 1-5 each component material quality table:
。
Table 2 is the underlying parameter contrast table of polycarboxylic-acid coal water slurry dispersing agent in embodiment 1-5:
。
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (6)
1. a kind of polycarboxylic-acid coal water slurry dispersing agent, which is characterized in that specifically include the raw material of following number (by mass): poly-
30-40 parts of carboxylic acid polymeric monomer, 2-10 parts of acrylic acid, 15-25 parts of the third vinyl sulfonic acid sodium, 2-8 parts of hydroquinone, oxidant 0.5-5
Part, 2-15 parts of alkali and 5-10 parts of isopropanol.
2. a kind of polycarboxylic-acid coal water slurry dispersing agent according to claim 1, it is characterised in that: the oxidant is specially
One of hydrogen peroxide, ammonium persulfate or potassium peroxydisulfate.
3. a kind of polycarboxylic-acid coal water slurry dispersing agent according to claim 1, it is characterised in that: the alkali is specially hydrogen-oxygen
Change one of sodium or potassium hydroxide.
4. a kind of preparation method of polycarboxylic-acid coal water slurry dispersing agent according to claim 1 to 3, feature
It is, specifically comprises the following steps:
Step 1 chooses 500ml four-hole boiling flask and is cleaned and dried, be then added in 500ml four-hole boiling flask it is appropriate go from
Sub- water, 2-8 parts of hydroquinone and 5-10 parts of isopropanol, heat four-hole boiling flask using shell type thermostat；
Step 2, respectively with dropping funel it is continuous, 30-40 parts of polycarboxylic acids polymeric monomer, 2-10 parts of acrylic acid, the third ethylene are added dropwise at a slow speed
15-25 parts of sodium sulfonate, 0.5-5 parts of oxidant and 2-15 parts of alkali, after dripping off, keep the temperature four-hole boiling flask, make in four-hole boiling flask
Solvent carry out copolyreaction, during copolyreaction, four-hole boiling flask is sealing state, wherein reaction principle are as follows:
Oxidant and isopropanol is added in polycarboxylic acids polymeric monomer, acrylic acid and the third vinyl sulfonic acid sodium free radical polymerization in aqueous solution
Reaction speed is controlled, controls reaction environment temperature, wherein copolyreaction formula are as follows:
Step 3 is slowly stirred production after four-hole boiling flask is cooled to room temperature with moisture extra in condenser pipe discharge four-hole boiling flask
Object, obtaining orange transparency liquid is polycarboxylic-acid coal water slurry dispersing agent.
5. according to a kind of preparation method for polycarboxylic-acid coal water slurry dispersing agent that claim 4 office is stated, it is characterised in that: described
In step 1, temperature is heated to 70-100 DEG C in four-hole boiling flask.
6. according to a kind of preparation method for polycarboxylic-acid coal water slurry dispersing agent that claim 4 office is stated, it is characterised in that: described
In step 2, the holding temperature of four-hole boiling flask is 70-80 DEG C, soaking time 3-5h, and the oxidant is potassium peroxydisulfate, described
Alkali is sodium hydroxide.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110183567A (en) * | 2019-06-03 | 2019-08-30 | 中国矿业大学(北京) | A kind of high molecular polymer base coal dust dispersing agent and its preparation method and application |
| CN110819419A (en) * | 2019-11-19 | 2020-02-21 | 安徽鑫固环保股份有限公司 | Comb-type coal water slurry dispersing agent synthesized by xylitol and synthesis method thereof |
| CN113801273A (en) * | 2021-09-13 | 2021-12-17 | 聊城大学 | Amphoteric polycarboxylate dispersant with macromolecular large branch chain and preparation method thereof |
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| JPH0812984A (en) * | 1994-07-01 | 1996-01-16 | Kao Corp | Dispersion stabilizer for coal water slurry |
| CN101880555A (en) * | 2010-07-15 | 2010-11-10 | 陕西科技大学 | Polycarboxylate water-coal-slurry dispersing agent and preparation method thereof |
| CN107674160A (en) * | 2017-10-25 | 2018-02-09 | 武汉奥克化学有限公司 | A kind of polyether-type polycarboxylic-acid coal water slurry dispersing agent and preparation method thereof |
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2018
- 2018-12-24 CN CN201811580804.8A patent/CN109796564A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0812984A (en) * | 1994-07-01 | 1996-01-16 | Kao Corp | Dispersion stabilizer for coal water slurry |
| CN101880555A (en) * | 2010-07-15 | 2010-11-10 | 陕西科技大学 | Polycarboxylate water-coal-slurry dispersing agent and preparation method thereof |
| CN107674160A (en) * | 2017-10-25 | 2018-02-09 | 武汉奥克化学有限公司 | A kind of polyether-type polycarboxylic-acid coal water slurry dispersing agent and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110183567A (en) * | 2019-06-03 | 2019-08-30 | 中国矿业大学(北京) | A kind of high molecular polymer base coal dust dispersing agent and its preparation method and application |
| CN110819419A (en) * | 2019-11-19 | 2020-02-21 | 安徽鑫固环保股份有限公司 | Comb-type coal water slurry dispersing agent synthesized by xylitol and synthesis method thereof |
| CN113801273A (en) * | 2021-09-13 | 2021-12-17 | 聊城大学 | Amphoteric polycarboxylate dispersant with macromolecular large branch chain and preparation method thereof |
| CN113801273B (en) * | 2021-09-13 | 2023-08-22 | 聊城大学 | Amphoteric polycarboxylate dispersant with macromolecular large branched chain and preparation method thereof |
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Application publication date: 20190524 |