CN104927935B - A kind of additive for water-coal-slurry - Google Patents
A kind of additive for water-coal-slurry Download PDFInfo
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- CN104927935B CN104927935B CN201510330814.6A CN201510330814A CN104927935B CN 104927935 B CN104927935 B CN 104927935B CN 201510330814 A CN201510330814 A CN 201510330814A CN 104927935 B CN104927935 B CN 104927935B
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Abstract
The invention discloses a kind of additive for water-coal-slurry, according to mass percentage content by: modified polyacrylic acid is 20～50%, modified polyvinylalcohol is 3～20%, oleic acid is 0.5～3%, polyacrylamide is 20～50%, Tween 80 is 0.5～3%, and sodium tripolyphosphate is 1～5%, butyl glycol ether be 5～10% composition.The present invention has good stability, can prevent the coal grain of water-coal-slurry from settling, make water-coal-slurry suspension stability good, and period of storage is long, and preparation method is simple, and raw material sources are extensive, and cheap, market prospect is good.
Description
Technical field
The invention belongs to Coal Energy Source applied technical field, relate to a kind of additive, specifically relate to a kind of for water-coal-slurry
Additive.
Background technology
Water-coal-slurry is a kind of important material of industry.In the course of processing of coal slurry, often run into coal slurry sedimentation problem.Tradition
Solution be in coal slurry add surfactant or coal particle surface electrically charged, it is to avoid granule settle.These methods exist
In varying degrees, meet the requirement of industry, but, because the sky that Small molecular surfactant is formed due to coated particle surface
Between steric hindrance limited, still can not overcome the gathering between coal slurry granule, when gathering to a certain degree, due to deadweight excessive will
Change into sedimented particle from particle, from coal slurry, separate out precipitation.For extending the suspension time of granule, carry out various exploration,
Main basic ideas are that to make granule be formed sterically hindered, or make like charges on the band of surface, when making that between granule, son meets, send out
Raw mutually exclusive, thus avoid particle aggregation to become big.But, different in the steric hindrance of particle surface, surface charge is different, to heavy
Fall impact makes different, this surfactant depending primarily on use and the electric charge on surface.
Summary of the invention
The invention aims to solve water-coal-slurry in use, the problem that slurry stability is poor, coal powder density is the highest,
And a kind of additive for water-coal-slurry is provided.The additive of the present invention can prevent the coal grain of water-coal-slurry from settling, and makes water-coal-slurry suspend
Good stability, period of storage is long.
For reaching above-mentioned purpose, the present invention realizes purpose and the technical scheme is that
A kind of additive for water-coal-slurry, the mass percentage content of the composition each component of additive is:
Wherein, described modified polyvinylalcohol refers to the product of polyvinyl alcohol and phosphatase reaction, and the structure of its molecule is:
Wherein, the numerical value of n is 50-1000；
Wherein, described modified polyacrylic acid refers to the product of acrylic monomers and acrylic acid macromonomer copolymerization, so-called propylene
Acid macromonomer refers to, the product that end methoxy poly (ethylene glycol) reacts with acrylic acid, i.e. molecular structure is following material；
And the molecular structure of acrylic monomers and acrylic acid macromonomer copolymer is:
Wherein, n=50-100, q=30-100, m=20-80, the initiator of its reaction is potassium peroxydisulfate, acrylic monomers and propylene
The mass ratio of acid macromonomer is 100:8, and the solvent of reaction is deionized water, and reaction temperature is 70 DEG C, and the response time is
5-6 hour.
Polyvinyl alcohol described above is 1:1 with the mol ratio of phosphatase reaction, and its molecular weight is arbitrary value, preferably 0.5-3 ten thousand.
The molecular weight of modified acroleic acid described above is any amount, preferably 50000.
The preparation method of a kind of additive for water-coal-slurry of the present invention, proportionally weighs component described above, by component
In liquid component mix homogeneously, be subsequently adding solid constituent and stir, finally pack, obtain finished product.
The feature of the present invention and beneficial effect
A kind of additive for water-coal-slurry of the present invention, has good stability, can prevent the coal grain of water-coal-slurry from settling, make
Water-coal-slurry suspension stability is good, and period of storage is long, and preparation method is simple, and raw material sources are extensive, and cheap, market prospect is good.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further described in detail.
Embodiment 1:
A kind of additive for water-coal-slurry, content is made up of following component by mass percentage:
Preparation method is: said components proportionally weighed, and by the liquid component mix homogeneously in recipe ingredient, is subsequently adding
Solid constituent stirs, and obtains the compositions of the on rust paint of slurries additive agent, according to needing the water adding 5% to enter during use
Row construction.
Embodiment effect: stablizing the water-coal-slurry time is 50 days.
Embodiment 2:
A kind of additive for water-coal-slurry, content is made up of following component by mass percentage:
Preparation method is with embodiment 1.
Embodiment effect: stablizing the water-coal-slurry time is 70 days.
Embodiment 3:
A kind of additive for water-coal-slurry, content is made up of following component by mass percentage:
Preparation method is with embodiment 1.
Embodiment effect: stablizing the water-coal-slurry time is 80 days.
Embodiment 4:
A kind of additive for water-coal-slurry, content is made up of following component by mass percentage:
Preparation method is with embodiment 1.
Embodiment effect: stablizing the water-coal-slurry time is 60 days.
Embodiment 5:
A kind of additive for water-coal-slurry, content is made up of following component by mass percentage:
Preparation method is with embodiment 1.
Embodiment effect: stablizing the water-coal-slurry time is 78 days.
Embodiment 6:
A kind of additive for water-coal-slurry, content is made up of following component by mass percentage:
Preparation method is with embodiment 1.
Embodiment effect: stablizing the water-coal-slurry time is 110 days.
Embodiment 7:
A kind of additive for water-coal-slurry, content is made up of following component by mass percentage:
Preparation method is with embodiment 1.
Embodiment effect: stablizing the water-coal-slurry time is 60 days.
Embodiment 8:
A kind of additive for water-coal-slurry, content is made up of following component by mass percentage:
Preparation method is with embodiment 1.
Embodiment effect: stablizing the water-coal-slurry time is 65 days.
Embodiment 9:
A kind of additive for water-coal-slurry, content is made up of following component by mass percentage:
Preparation method is with embodiment 1.
Embodiment effect: stablizing the water-coal-slurry time is 97 days.
Embodiment 10:
A kind of additive for water-coal-slurry, content is made up of following component by mass percentage:
Preparation method is with embodiment 1.
Embodiment effect: stablizing the water-coal-slurry time is 85 days.
Embodiment 11:
A kind of additive for water-coal-slurry, content is made up of following component by mass percentage:
Preparation method is with embodiment 1.
Embodiment effect: stablizing the water-coal-slurry time is 115 days.
Claims (5)
1. for an additive for water-coal-slurry, it is characterized in that, the mass percentage content of the composition each component of additive is:
Wherein, described modified polyvinylalcohol refers to the product of polyvinyl alcohol and phosphatase reaction, and the structure of its molecule is:
Wherein, the numerical value of n is 50-1000；
Wherein, described modified polyacrylic acid refers to the product of acrylic monomers and acrylic acid macromonomer copolymerization, so-called propylene
Acid macromonomer refers to, the product that end methoxy poly (ethylene glycol) reacts with acrylic acid, i.e. molecular structure is following material；
And the molecular structure of acrylic monomers and acrylic acid macromonomer copolymer is:
Wherein, n=50-100, q=30-100, m=20-80, the initiator of its reaction is potassium peroxydisulfate, acrylic monomers and propylene
The mass ratio of acid macromonomer is 100:8, and the solvent of reaction is deionized water, and reaction temperature is 70 DEG C, and the response time is
5-6 hour.
Additive for water-coal-slurry the most according to claim 1, it is characterised in that: described polyvinyl alcohol and phosphatase reaction
Mol ratio be 1:1, the molecular weight of described modified polyvinylalcohol is arbitrary value.
Additive for water-coal-slurry the most according to claim 2, it is characterised in that: the molecule of described modified polyvinylalcohol
Amount is 0.5-3 ten thousand.
Additive for water-coal-slurry the most according to claim 1, it is characterised in that: the molecule of described modified polyacrylic acid
Amount is any amount.
Additive for water-coal-slurry the most according to claim 4, it is characterised in that: the molecule of described modified polyacrylic acid
Amount is 50000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510330814.6A CN104927935B (en) | 2015-06-16 | 2015-06-16 | A kind of additive for water-coal-slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510330814.6A CN104927935B (en) | 2015-06-16 | 2015-06-16 | A kind of additive for water-coal-slurry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104927935A CN104927935A (en) | 2015-09-23 |
| CN104927935B true CN104927935B (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510330814.6A Expired - Fee Related CN104927935B (en) | 2015-06-16 | 2015-06-16 | A kind of additive for water-coal-slurry |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110564469B (en) * | 2019-10-08 | 2021-05-14 | 万华化学（宁波）有限公司 | Polar high-molecular additive for coal water slurry, and preparation method and application thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59120232A (en) * | 1982-12-25 | 1984-07-11 | Nippon Oil & Fats Co Ltd | Additive for coal-water slurry |
| JPS59149989A (en) * | 1983-02-16 | 1984-08-28 | Hitachi Ltd | Preparation of coal/water slurry |
| CN101225336A (en) * | 2008-02-01 | 2008-07-23 | 福州大学 | Alkali lignin-sulphonated acetone formaldehyde polycondensates coal water slurry additive and preparation method thereof |
| CN101747963A (en) * | 2010-01-21 | 2010-06-23 | 肖国雄 | Biomass water-coal-slurry and preparation method thereof |
| CN101921639A (en) * | 2010-08-28 | 2010-12-22 | 福州大学 | Method for preparing water-coal-slurry additive taking enzymatic hydrolysis lignin as raw material |
| CN102517106A (en) * | 2011-12-13 | 2012-06-27 | 南京大学 | Slurry stabilizing agent and applications thereof |
| CN103468334A (en) * | 2013-08-01 | 2013-12-25 | 安徽省安邦矿物有限公司 | Suspension stabilizer for coal-water slurry |
| CN103509617A (en) * | 2013-01-17 | 2014-01-15 | 湖南东盈煤化工技术开发有限公司 | Special composite coal water slurry additive for coal gasification |
-
2015
- 2015-06-16 CN CN201510330814.6A patent/CN104927935B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59120232A (en) * | 1982-12-25 | 1984-07-11 | Nippon Oil & Fats Co Ltd | Additive for coal-water slurry |
| JPS59149989A (en) * | 1983-02-16 | 1984-08-28 | Hitachi Ltd | Preparation of coal/water slurry |
| CN101225336A (en) * | 2008-02-01 | 2008-07-23 | 福州大学 | Alkali lignin-sulphonated acetone formaldehyde polycondensates coal water slurry additive and preparation method thereof |
| CN101747963A (en) * | 2010-01-21 | 2010-06-23 | 肖国雄 | Biomass water-coal-slurry and preparation method thereof |
| CN101921639A (en) * | 2010-08-28 | 2010-12-22 | 福州大学 | Method for preparing water-coal-slurry additive taking enzymatic hydrolysis lignin as raw material |
| CN102517106A (en) * | 2011-12-13 | 2012-06-27 | 南京大学 | Slurry stabilizing agent and applications thereof |
| CN103509617A (en) * | 2013-01-17 | 2014-01-15 | 湖南东盈煤化工技术开发有限公司 | Special composite coal water slurry additive for coal gasification |
| CN103468334A (en) * | 2013-08-01 | 2013-12-25 | 安徽省安邦矿物有限公司 | Suspension stabilizer for coal-water slurry |
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| CN104927935A (en) | 2015-09-23 |
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Granted publication date: 20160831 Termination date: 20200616 |