CN102517106A - Slurry stabilizing agent and applications thereof - Google Patents
Slurry stabilizing agent and applications thereof Download PDFInfo
- Publication number
- CN102517106A CN102517106A CN201110415835XA CN201110415835A CN102517106A CN 102517106 A CN102517106 A CN 102517106A CN 201110415835X A CN201110415835X A CN 201110415835XA CN 201110415835 A CN201110415835 A CN 201110415835A CN 102517106 A CN102517106 A CN 102517106A
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- China
- Prior art keywords
- slurry
- grafting
- polymethyl acrylate
- percentage
- polyacrylamide
- 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.)
- Pending
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- 239000002002 slurry Substances 0.000 title claims abstract description 91
- 239000003381 stabilizer Substances 0.000 title abstract description 15
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims abstract description 27
- 229920002319 Poly(methyl acrylate) Polymers 0.000 claims abstract description 14
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 4
- 229910021645 metal ion Inorganic materials 0.000 claims abstract description 4
- 229920000578 graft copolymer Polymers 0.000 claims description 4
- 238000010008 shearing Methods 0.000 abstract description 4
- 229920002401 polyacrylamide Polymers 0.000 abstract 5
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 abstract 4
- 239000011976 maleic acid Substances 0.000 abstract 4
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 abstract 4
- 229920001577 copolymer Polymers 0.000 abstract 1
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 28
- 239000002245 particle Substances 0.000 description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 230000003068 static effect Effects 0.000 description 13
- 238000003756 stirring Methods 0.000 description 12
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 11
- 239000003245 coal Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- 150000002500 ions Chemical class 0.000 description 7
- 239000000571 coke Substances 0.000 description 6
- 239000002105 nanoparticle Substances 0.000 description 4
- 235000019738 Limestone Nutrition 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000006028 limestone Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 238000007613 slurry method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- -1 metals ion Chemical class 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
Landscapes
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
The invention discloses a slurry stabilizing agent and applications thereof. A polyacrylamide maleic acid polymethyl acrylate grafted copolymer is adopted; the molecular weight of polyacrylamide is 50,000-2,000,000; the grafting rate of polymethyl acrylate is 1-15 percent; the grafting rate of maleic acid is 2-30 percent; and the grafting rates refer to the weight ratio of polymethyl acrylate to polyacrylamide and the weight ratio of maleic acid to polyacrylamide. The rheologic property of slurry is improved by utilizing the polyacrylamide in molecular structure; metal ions are chelated by utilizing the grafted maleic acid in molecular structure; and inorganic minerals are dispersed by utilizing the polymethyl acrylate, wherein the addition is 10-150ppm only. The slurry stabilizing agent disclosed by the invention is capable of obviously improving the rheologic property of the slurry and enhancing the stability of the slurry, has a stabilizing effect on various slurries, enables the slurries to show proper viscosities at different shearing rates, is convenient to operate, low in use level and lower in cost and has a higher popularization and application value.
Description
Technical field
The present invention relates to improve the especially method of coal water slurry, the burnt slurry of water, Wingdale and nano-sized iron oxide slurry stability of slurry with a kind of high-performance slurry stablizer.
Background technology
Paste materials obtains to use widely in growing field, comes into one's own day by day.But because paste materials is one type of solid, liquid two-phase dispersion system, the use properties that deposition and layering influence slurry takes place in solid easily in liquid.Therefore, improve slurry stability, improve the rheological characteristics of slurry, reduce that dissociated ion content has very high realistic price in the slurry, correlation technique has broad application prospects.At present, aspect the raising slurry stability, have the stablizer of use raising system viscosity, use precipitation agent to eliminate metals ion, the interpolation colloid improves methods such as particle surface is electrical, the interphase interaction of raising particle.Chinese invention patent ZL011380632 has proposed a kind of method for preparing wide grain-size distributed slurry body with the grinding machine parallel connection; This method can be improved in the slurry energy level of a particle of a quantize and join; Strengthen interparticle interaction; But can't improve the viscosity of slurry under low shear rate, the effect of stability that therefore improves slurry is limited.Chinese invention patent application 87101648 has proposed to improve with control slurry ions content the method for slurry stability, though this method can weaken calcium, mg ion to the slurry Effect on Performance, can't slow down under the various states sedimentation speed of particle in the slurry.Chinese invention patent application 02133384.X has proposed a kind of making method of slurry; This method has been considered to reduce sedimentation speed with the particle diameter of particle in the refinement slurry; But this method energy consumption is too high, and viscosity is too high, is not suitable for the preparation and the conveying of micron-sized slurry.
In sum, must improve the stability of paste materials, the viscosity of control slurry under different states improves slurry stability, has been called one of problem that needs solve in the slurry manufacturing field.
Summary of the invention
The objective of the invention is to be to provide a kind of high-performance slurry stablizer; After adding slurry; Stablizer has a mineral ion in can the chelating slurry; Make between the ion effectively bridging and make slurry under low shear rate, have higher viscosity to keep the good static stability of slurry, and its viscosity reduces rapidly under high shear rate, guarantees good conveying and use properties.Significantly do not increase slurry method of viscosity under high shear rate; 1) the present invention need not transform existing slurry manufacturing system; 2) stablizer of the present invention can be regulated the content that influences slurry performance dissociated ion in the slurry; 3) the present invention is easy to operate, and consumption is few, and cost is low, has higher popularization and application values.
Technical scheme of the present invention is; Slurry stablizer and purposes are used to improve the method for slurry stability, in coal water slurry, the burnt slurry of water, add the high-performance stablizer; It is one type of SEPIGEL 305 toxilic acid polymethyl acrylate graft copolymer; The molecular weight of SEPIGEL 305 is 50000～2000000, and the percentage of grafting of methyl acrylate is that 1～15% (polymethyl acrylate, toxilic acid percentage of grafting are 2～30% (ratios that refer to polymethyl acrylate, toxilic acid quality and SEPIGEL 305 quality).Graft copolymer can terpolymer or SEPIGEL 305 and methyl acrylate, the toxilic acid graft reaction.
Utilize SEPIGEL 305 to improve the rheological property of slurry on the molecular structure; Utilize grafted toxilic acid chelated metal ions on the molecular structure; Utilize polymethyl acrylate to disperse inorganic mineral, its add-on is merely 10～150ppm.To different slurries, thereby reach the effect of less addition through the molecular weight of regulating this stablizer, its add-on is merely 10～150ppm.
The solution of above-mentioned polymkeric substance is added in the slurry, can change the rheological characteristics of slurry, the free metal ion in the chelating slurry reduces the ion content of slurry, significantly improves the stability of slurry.
Beneficial effect of the present invention is, compared with prior art, 1) the present invention is a kind of slurry method of viscosity under high shear rate that significantly do not increase; 2) the present invention need not transform existing slurry manufacturing system; 3) stablizer of the present invention can be regulated the content that influences slurry performance dissociated ion in the slurry; 4) the present invention is easy to operate, and consumption is few, and cost is low, has higher popularization and application values.
Embodiment
Embodiment 1:
In 1000g concentration is Datong District's coal coal water slurry (mean particle size of coal grain is 42.0 μ m) of 64%, add 1g, (molecular weight is 200000 to 1% stabiliser solution; The toxilic acid percentage of grafting is 12%, and the percentage of grafting of methyl acrylate is 1%, and molecular weight is 2000; Consumption is 10ppm); Stir and made slurry in 5 minutes, measure its rheological property, leave standstill and observe its static stability.
Embodiment 2:
In 1000g concentration is Datong District's coal coal water slurry (mean particle size of coal grain is 42.0 μ m) of 64%, add 2g, (molecular weight is 200000 to 1% stabiliser solution; The toxilic acid percentage of grafting is 12%, and the percentage of grafting of methyl acrylate is 1%, and molecular weight is 2000; Consumption is 20ppm); Stir and made slurry in 5 minutes, measure its rheological property, leave standstill and observe its static stability.
Embodiment 3:
In 1000g concentration is Datong District's coal coal water slurry (mean particle size of coal grain is 42.0 μ m) of 64%, add 8g, (molecular weight is 65000 to 1% stabiliser solution; The toxilic acid percentage of grafting is 12%; The percentage of grafting of methyl acrylate is 1%, and consumption is 80ppm), stir and made slurry in 5 minutes; Measure its rheological property, leave standstill and observe its static stability.
Embodiment 4:
In 1000g concentration is 75% water limestone slurry (mean particle size of Wingdale particulate is 10.7 μ m), add 4g, (molecular weight is 400000 to 1% stabiliser solution; The toxilic acid percentage of grafting is 28%, and the percentage of grafting of methyl acrylate is 1,5%; Consumption is 40ppm); Stir and made slurry in 5 minutes, measure its rheological property, leave standstill and observe its static stability.
Embodiment 5:
In 1000g concentration is 75% water limestone slurry (mean particle size of Wingdale particulate is 10.7 μ m), add 6g, (molecular weight is 400000 to 1% stabiliser solution; The toxilic acid percentage of grafting is 28%; The percentage of grafting of methyl acrylate is 15%, and consumption is 60ppm), stir and made slurry in 5 minutes; Measure its rheological property, leave standstill and observe its static stability.
Embodiment 6:
In 1000g concentration is 75% water limestone slurry (mean particle size of Wingdale particulate is 10.7 μ m), add 8g, (molecular weight is 400000 to 1% stabiliser solution; The toxilic acid percentage of grafting is 28%; The percentage of grafting of methyl acrylate is 15%, and consumption is 80ppm), stir and made slurry in 5 minutes; Measure its rheological property, leave standstill and observe its static stability.
Embodiment 7:
In 1000g concentration is in the burnt slurry of 68% Shandong refinery coke water (mean particle size of refinery coke particulate is 32.3 μ m), adds 1.5g, and (molecular weight is 800000 to 1% stabiliser solution; The toxilic acid percentage of grafting is 5%; The percentage of grafting of methyl acrylate is 15%, and consumption is 15ppm), stir and made slurry in 5 minutes; Measure its rheological property, leave standstill and observe its static stability.
Embodiment 8:
In 1000g concentration is in the burnt slurry of 68% Shandong refinery coke water (mean particle size of refinery coke particulate is 32.3 μ m), adds 3.5g, and (molecular weight is 800000 to 1% stabiliser solution; The toxilic acid percentage of grafting is 5%; The percentage of grafting of methyl acrylate is 15%, and consumption is 35ppm), stir and made slurry in 5 minutes; Measure its rheological property, leave standstill and observe its static stability.
Embodiment 9:
In 1000g concentration is in the burnt slurry of 68% Shandong refinery coke water (mean particle size of refinery coke particulate is 32.3 μ m), adds 5g, and (molecular weight is 800000 to 1% stabiliser solution; The toxilic acid percentage of grafting is 5%; The percentage of grafting of methyl acrylate is 15%, and consumption is 50ppm), stir and made slurry in 5 minutes; Measure its rheological property, leave standstill and observe its static stability.
Embodiment 10:
In 100g concentration is in 67% the water nano-sized iron oxide slurry (mean particle size of ferric oxide particles is 472nm), adds 1.0g, and (molecular weight is 1800000 to 1% stabiliser solution; The toxilic acid percentage of grafting is 2%; The percentage of grafting of methyl acrylate is 7%, and consumption is 100ppm), stir and made slurry in 5 minutes; Measure its rheological property, leave standstill and observe its static stability.
Embodiment 11:
In 100g concentration is in 67% the water nano-sized iron oxide slurry (mean particle size of ferric oxide particles is 472nm), adds 1.3g, and (molecular weight is 1800000 to 1% stabiliser solution; The toxilic acid percentage of grafting is 2%; The percentage of grafting of methyl acrylate is 7%, and consumption is 130ppm), stir and made slurry in 5 minutes; Measure its rheological property, leave standstill and observe its static stability.
Embodiment 12:
In 100g concentration is in 67% the water nano-sized iron oxide slurry (mean particle size of ferric oxide particles is 472nm), adds 1.5g, and (molecular weight is 1800000 to 1% stabiliser solution; Molecular weight is 1800000, and the toxilic acid percentage of grafting is 2%, and the percentage of grafting of methyl acrylate is 7%; Consumption is 150ppm); Stir and made slurry in 5 minutes, measure its rheological property, leave standstill and observe its static stability.
With the stability of GB-T 18856.5-2008 evaluation slurry, measure slurry at 1S with GB-T 18856.4-2008
-1And 100S
-1Viscosity under the shearing rate will be used stablizer CMC (Xylo-Mucine) and XG 550 always and replace the aforementioned stable agent to repeat above-mentioned experiment, and experimental result is following:
Table 1 adds the stability of dissimilar stablizer slurries
Table 2 adds dissimilar stablizer slurries at 1S
-1Slurry viscosity under the shearing rate
Table 3 adds dissimilar stablizer slurries at 100S
-1Slurry viscosity under the shearing rate
Claims (3)
1. the purposes of a slurry stability is characterized in that the slurry stablizer is a SEPIGEL 305 toxilic acid polymethyl acrylate graft copolymer, utilizes SEPIGEL 305 to improve the rheological property of slurry on the molecular structure; Utilize grafted toxilic acid chelated metal ions on the molecular structure; Utilize polymethyl acrylate to disperse inorganic mineral, its add-on is merely 10～150ppm.
2. the purposes of slurry stability according to claim 1, the molecular weight that it is characterized in that SEPIGEL 305 is 50000～2000000, and the polymethyl acrylate molecular weight is 2000～20000, and percentage of grafting is 1～15%, and the toxilic acid percentage of grafting is 2～30%.
3. slurry stablizer; It is characterized in that SEPIGEL 305 toxilic acid polymethyl acrylate graft copolymer; The molecular weight of SEPIGEL 305 is 50000～2000000; The percentage of grafting of polymethyl acrylate is 1～15%, and the toxilic acid percentage of grafting is 2～30%, and percentage of grafting refers to the ratio of polymethyl acrylate, toxilic acid quality and SEPIGEL 305 quality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110415835XA CN102517106A (en) | 2011-12-13 | 2011-12-13 | Slurry stabilizing agent and applications thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110415835XA CN102517106A (en) | 2011-12-13 | 2011-12-13 | Slurry stabilizing agent and applications thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102517106A true CN102517106A (en) | 2012-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110415835XA Pending CN102517106A (en) | 2011-12-13 | 2011-12-13 | Slurry stabilizing agent and applications thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102517106A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103232869A (en) * | 2013-05-09 | 2013-08-07 | 陕西省石油化工研究设计院 | Water-coal-slurry additive for preparing slurry through concentrated water |
| CN104927935A (en) * | 2015-06-16 | 2015-09-23 | 上海海乔化工有限公司 | Additive used for coal water slurry |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58219296A (en) * | 1982-06-16 | 1983-12-20 | Nippon Shokubai Kagaku Kogyo Co Ltd | Dispersant for coal-water slurry |
| JPH067661A (en) * | 1992-06-25 | 1994-01-18 | Dai Ichi Kogyo Seiyaku Co Ltd | Additive for highly concentrated coal-water slurry |
| CN1687157A (en) * | 2005-05-18 | 2005-10-26 | 江南大学 | Method for preparing macromolecule modifier for organic pigment |
| CN101054429A (en) * | 2007-04-16 | 2007-10-17 | 上海华明高技术（集团）有限公司 | Hydrophobic association polyacrylamide of side chain graft polycaprolactone and preparation method thereof |
| CN101280518A (en) * | 2008-03-05 | 2008-10-08 | 浙江传化股份有限公司 | Alkali-resistant sequestering dispersant and preparation thereof |
| CN101353500A (en) * | 2008-07-24 | 2009-01-28 | 中山大桥化工集团有限公司 | Amphiphilic polymer pigment dispersant for water paint |
| CN101368117A (en) * | 2008-07-03 | 2009-02-18 | 中国矿业大学(北京) | Preparation and application of polyacrylic acid system slurries additive |
-
2011
- 2011-12-13 CN CN201110415835XA patent/CN102517106A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58219296A (en) * | 1982-06-16 | 1983-12-20 | Nippon Shokubai Kagaku Kogyo Co Ltd | Dispersant for coal-water slurry |
| JPH067661A (en) * | 1992-06-25 | 1994-01-18 | Dai Ichi Kogyo Seiyaku Co Ltd | Additive for highly concentrated coal-water slurry |
| CN1687157A (en) * | 2005-05-18 | 2005-10-26 | 江南大学 | Method for preparing macromolecule modifier for organic pigment |
| CN101054429A (en) * | 2007-04-16 | 2007-10-17 | 上海华明高技术（集团）有限公司 | Hydrophobic association polyacrylamide of side chain graft polycaprolactone and preparation method thereof |
| CN101280518A (en) * | 2008-03-05 | 2008-10-08 | 浙江传化股份有限公司 | Alkali-resistant sequestering dispersant and preparation thereof |
| CN101368117A (en) * | 2008-07-03 | 2009-02-18 | 中国矿业大学(北京) | Preparation and application of polyacrylic acid system slurries additive |
| CN101353500A (en) * | 2008-07-24 | 2009-01-28 | 中山大桥化工集团有限公司 | Amphiphilic polymer pigment dispersant for water paint |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103232869A (en) * | 2013-05-09 | 2013-08-07 | 陕西省石油化工研究设计院 | Water-coal-slurry additive for preparing slurry through concentrated water |
| CN104927935A (en) * | 2015-06-16 | 2015-09-23 | 上海海乔化工有限公司 | Additive used for coal water slurry |
| CN104927935B (en) * | 2015-06-16 | 2016-08-31 | 上海海乔化工有限公司 | A kind of additive for water-coal-slurry |
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Application publication date: 20120627 |