CN104194848A - Easily soluble coal water slurry dispersant powder and preparation method thereof - Google Patents
Easily soluble coal water slurry dispersant powder and preparation method thereof Download PDFInfo
- Publication number
- CN104194848A CN104194848A CN201410477318.9A CN201410477318A CN104194848A CN 104194848 A CN104194848 A CN 104194848A CN 201410477318 A CN201410477318 A CN 201410477318A CN 104194848 A CN104194848 A CN 104194848A
- Authority
- CN
- China
- Prior art keywords
- water slurry
- coal water
- molten type
- easy molten
- agent powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003245 coal Substances 0.000 title claims abstract description 31
- 239000000843 powder Substances 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 239000002002 slurry Substances 0.000 title claims abstract description 26
- 239000002270 dispersing agent Substances 0.000 title claims abstract description 18
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 22
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 21
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 239000006185 dispersion Substances 0.000 claims description 12
- 235000010627 Phaseolus vulgaris Nutrition 0.000 claims description 7
- 244000046052 Phaseolus vulgaris Species 0.000 claims description 7
- 241001312519 Trigonella Species 0.000 claims description 7
- KPFSGNRRZMYZPH-UHFFFAOYSA-M potassium;2-chloroacetate Chemical compound [K+].[O-]C(=O)CCl KPFSGNRRZMYZPH-UHFFFAOYSA-M 0.000 claims description 7
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 6
- 229920002752 Konjac Polymers 0.000 claims description 6
- 150000001298 alcohols Chemical class 0.000 claims description 6
- 235000010485 konjac Nutrition 0.000 claims description 6
- FDRCDNZGSXJAFP-UHFFFAOYSA-M sodium chloroacetate Chemical group [Na+].[O-]C(=O)CCl FDRCDNZGSXJAFP-UHFFFAOYSA-M 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract description 2
- 230000021523 carboxylation Effects 0.000 abstract 2
- 238000006473 carboxylation reaction Methods 0.000 abstract 2
- 150000004676 glycans Chemical class 0.000 abstract 2
- 229920001282 polysaccharide Polymers 0.000 abstract 2
- 239000005017 polysaccharide Substances 0.000 abstract 2
- 238000007605 air drying Methods 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 150000003384 small molecules Chemical class 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- 239000003250 coal slurry Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 229920006318 anionic polymer Polymers 0.000 description 1
- 150000002500 ions Chemical group 0.000 description 1
- 230000008121 plant development Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
The invention relates to an easily soluble coal water slurry dispersant powder and a preparation method thereof. The viscosity of coal water slurry is high under the condition of no dispersant when the coal water slurry is conveyed, the difficulty is higher in the conveying process of the coal water slurry, and meanwhile, the spraying effect is extremely poor during combustion. The preparation method comprises the following steps: mixing easily soluble polysaccharide, strong alkali and small molecule alcohol in a mass ratio of 20: (4-6): 100, and stirring for 3-4 h under the environment with the temperature of 40-50 DEG C; putting a carboxylation reagent in a reaction system, and reacting for 2h continuously, wherein the mass of the carboxylation reagent is half of the mass of the polysaccharide; removing liquid in the mixture through filtering, and air-drying the obtained powder so as to obtain the dispersant powder. The product exists in a powder form, so that plenty of cost can be prevented from being consumed on cheap water during the product transportation process; the product can be quickly dissolved under room temperature, and is convenient to use; the product is high in content of effective elements, and thus the viscosity of the coal water slurry can be greatly reduced under the condition that a small amount of the product is used.
Description
Technical field
the present invention relates to a kind of Coal Chemical Industry chemical, be specifically related to a kind of easy molten type coal water slurry dispersing agent powder and preparation method thereof.
Background technology
In modern coal combustion and conveying technology, have a kind of method be by coal pulverizer and water be mixed to form can be mobile coal water slurry after, carry.In the situation that there is no dispersion agent, the viscosity of coal water slurry is high, and the course of conveying difficulty of coal water slurry is larger, and in the time of burning, spray effect can be very poor simultaneously.Therefore in the preparation process of coal water slurry, the effect of dispersion agent is extremely important.The ultimate principle of dispersion agent is in macromole, to introduce a large amount of negative ion groups, in the time that macromole is attached on the small pulverized coal particle in coal water slurry, makes negative charge on pulverized coal particle band.Under the charge repulsion effect between particle, the overall viscosity of coal water slurry can present obvious reduction, makes coal water slurry be easy to carry and spraying.
At present, mostly the coal water slurry dispersing agent coming into operation is anionic polymer solution or emulsion.This is because the molten speed of high polymer is slow, for the convenience using, polymer preform need be become to solution or emulsion.Having caused so the most of composition in dispersion agent is all water, and the transport use cost of dispersion agent is too much consumed on the water.
Summary of the invention
The object of this invention is to provide a kind of easy molten type coal water slurry dispersing agent powder and preparation method thereof, to overcome the problem that dispersion agent water-content is high.
The technical solution adopted in the present invention is:
Easy molten type coal water slurry dispersing agent powder, is characterized in that:
Component by following weight part is mixed:
20 parts of easy molten type saccharans
Highly basic 4-6 part
100 parts of small molecular alcohols
10 parts of carboxylated reagent.
Described easy molten type saccharan is trigonella bean gum or konjak gum.
Described highly basic is sodium hydroxide or potassium hydroxide.
Described small molecular alcohol is ethanol or Virahol.
Described carboxylated reagent is sodium chloroacetate or potassium chloroacetate.
The preparation method of easy molten type coal water slurry dispersing agent powder, is characterized in that: realized by following steps:
Step 1: by easy molten type saccharan, highly basic and small molecular alcohol, in mass ratio 20:(4-6): 100 mix, and under 40-50 DEG C of environment, stir 3-4h;
Step 2: carboxylated reagent is put in reaction system by the half of saccharan quality, continued reaction 2h;
Step 3: by removing by filter the liquid in mixture, dry gained powder and be dispersion agent powder;
Wherein, easy molten type saccharan is trigonella bean gum or konjak gum, and highly basic is sodium hydroxide or potassium hydroxide, and small molecular alcohol is ethanol or Virahol, and carboxylated reagent is sodium chloroacetate or potassium chloroacetate.
The present invention has the following advantages:
1, product of the present invention exists with powder form, can avoid in Product transport a large amount of cost consumptions on cheap moisture.
2, product of the present invention can at room temperature dissolve fast, easy to use.Be domestic natural plant that can plant development as the saccharan of polymer support, belong to renewable resources and be easy to and obtain.
3, product active constituent content of the present invention is high, therefore under less consumption, can significantly reduce viscosity in aqueous coal slurries.As Fig. 1, in the time of consumption about 0.5%, viscosity is the highest can reduce by 58%.
Brief description of the drawings
Fig. 1 is that dispersant dosage of the present invention is to viscosity influence.
Embodiment
Below in conjunction with embodiment, the present invention will be described in detail.
Easy to be molten type coal water slurry dispersing agent powder involved in the present invention, is mixed by the component of following weight part:
20 parts of easy molten type saccharans
Highly basic 4-6 part
100 parts of small molecular alcohols
10 parts of carboxylated reagent;
Wherein:
Easy molten type saccharan is trigonella bean gum or konjak gum;
Highly basic is sodium hydroxide or potassium hydroxide;
Small molecular alcohol is ethanol or Virahol;
Carboxylated reagent is sodium chloroacetate or potassium chloroacetate.
Specifically realized by following steps:
Step 1: easy molten type saccharan, highly basic and small molecular alcohol are mixed, stir 3-4h under 40-50 DEG C of environment;
Step 2: carboxylated reagent is put in reaction system, continued reaction 2h;
Step 3: by removing by filter the liquid in mixture, dry gained powder and be dispersion agent powder.
Embodiment 1:
20 parts of easy molten type saccharans
4 parts, highly basic
100 parts of small molecular alcohols
10 parts of carboxylated reagent;
Wherein:
Easy molten type saccharan is trigonella bean gum;
Highly basic is sodium hydroxide;
Small molecular alcohol is ethanol;
Carboxylated reagent is sodium chloroacetate.
Specifically realized by following steps:
Step 1: easy molten type saccharan, highly basic and small molecular alcohol are mixed, stir 4h under 40 DEG C of environment;
Step 2: carboxylated reagent is put in reaction system, continued reaction 2h;
Step 3: by removing by filter the liquid in mixture, dry gained powder and be dispersion agent powder.
Embodiment 2:
20 parts of easy molten type saccharans
5 parts, highly basic
100 parts of small molecular alcohols
10 parts of carboxylated reagent;
Wherein:
Easy molten type saccharan is trigonella bean gum;
Highly basic is potassium hydroxide;
Small molecular alcohol is ethanol;
Carboxylated reagent is potassium chloroacetate.
Specifically realized by following steps:
Step 1: easy molten type saccharan, highly basic and small molecular alcohol are mixed, stir 3.5h under 45 DEG C of environment;
Step 2: carboxylated reagent is put in reaction system, continued reaction 2h;
Step 3: by removing by filter the liquid in mixture, dry gained powder and be dispersion agent powder.
Embodiment 3:
20 parts of easy molten type saccharans
6 parts, highly basic
100 parts of small molecular alcohols
10 parts of carboxylated reagent;
Wherein:
Easy molten type saccharan is konjak gum;
Highly basic is potassium hydroxide;
Small molecular alcohol is Virahol;
Carboxylated reagent is potassium chloroacetate.
Specifically realized by following steps:
Step 1: easy molten type saccharan, highly basic and small molecular alcohol are mixed, stir 3h under 50 DEG C of environment;
Step 2: carboxylated reagent is put in reaction system, continued reaction 2h;
Step 3: by removing by filter the liquid in mixture, dry gained powder and be dispersion agent powder.
As Fig. 1, product active constituent content of the present invention is high, therefore under less consumption, can significantly reduce viscosity in aqueous coal slurries, in figure, shows, in the time of consumption about 0.5%, viscosity is the highest can reduce by 58%.
It is cited that content of the present invention is not limited to embodiment, and the conversion of any equivalence that those of ordinary skill in the art take technical solution of the present invention by reading specification sheets of the present invention, is claim of the present invention and contains.
Claims (6)
1. easy molten type coal water slurry dispersing agent powder, is characterized in that:
Component by following weight part is mixed:
20 parts of easy molten type saccharans
Highly basic 4-6 part
100 parts of small molecular alcohols
10 parts of carboxylated reagent.
2. easy molten type coal water slurry dispersing agent powder according to claim 1, is characterized in that:
Described easy molten type saccharan is trigonella bean gum or konjak gum.
3. easy molten type coal water slurry dispersing agent powder according to claim 2, is characterized in that:
Described highly basic is sodium hydroxide or potassium hydroxide.
4. easy molten type coal water slurry dispersing agent powder according to claim 3, is characterized in that:
Described small molecular alcohol is ethanol or Virahol.
5. easy molten type coal water slurry dispersing agent powder according to claim 4, is characterized in that:
Described carboxylated reagent is sodium chloroacetate or potassium chloroacetate.
6. the preparation method of easy molten type coal water slurry dispersing agent powder, is characterized in that: realized by following steps:
Step 1: by easy molten type saccharan, highly basic and small molecular alcohol, in mass ratio 20:(4-6): 100 mix, and under 40-50 DEG C of environment, stir 3-4h;
Step 2: carboxylated reagent is put in reaction system by the half of saccharan quality, continued reaction 2h;
Step 3: by removing by filter the liquid in mixture, dry gained powder and be dispersion agent powder;
Wherein, easy molten type saccharan is trigonella bean gum or konjak gum, and highly basic is sodium hydroxide or potassium hydroxide, and small molecular alcohol is ethanol or Virahol, and carboxylated reagent is sodium chloroacetate or potassium chloroacetate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410477318.9A CN104194848B (en) | 2014-09-18 | 2014-09-18 | Easy molten type coal water slurry dispersing agent powder and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410477318.9A CN104194848B (en) | 2014-09-18 | 2014-09-18 | Easy molten type coal water slurry dispersing agent powder and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104194848A true CN104194848A (en) | 2014-12-10 |
| CN104194848B CN104194848B (en) | 2016-01-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410477318.9A Expired - Fee Related CN104194848B (en) | 2014-09-18 | 2014-09-18 | Easy molten type coal water slurry dispersing agent powder and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104194848B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5819390A (en) * | 1981-07-27 | 1983-02-04 | Mitsubishi Acetate Co Ltd | Dispersant for coal/water slurry |
| JPS5896693A (en) * | 1981-12-04 | 1983-06-08 | Sekitan Gijutsu Kenkyusho | Coal slurry composition |
| JPH0913053A (en) * | 1995-06-30 | 1997-01-14 | Ajinomoto Co Inc | Coal slurry composition and its production |
| CN102618343A (en) * | 2012-04-10 | 2012-08-01 | 雷军 | Instant water coal briquette and molding method thereof |
-
2014
- 2014-09-18 CN CN201410477318.9A patent/CN104194848B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5819390A (en) * | 1981-07-27 | 1983-02-04 | Mitsubishi Acetate Co Ltd | Dispersant for coal/water slurry |
| JPS5896693A (en) * | 1981-12-04 | 1983-06-08 | Sekitan Gijutsu Kenkyusho | Coal slurry composition |
| JPH0913053A (en) * | 1995-06-30 | 1997-01-14 | Ajinomoto Co Inc | Coal slurry composition and its production |
| CN102618343A (en) * | 2012-04-10 | 2012-08-01 | 雷军 | Instant water coal briquette and molding method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 魏香奕等: "魔芋葡甘露聚糖羧甲基化改性条件的优化", 《食品与发酵工业》, vol. 31, no. 7, 30 July 2005 (2005-07-30) * |
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| Publication number | Publication date |
|---|---|
| CN104194848B (en) | 2016-01-20 |
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Granted publication date: 20160120 |
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