CN103991972B - A kind of dirt dispersion agent - Google Patents
A kind of dirt dispersion agent Download PDFInfo
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- CN103991972B CN103991972B CN201410216527.8A CN201410216527A CN103991972B CN 103991972 B CN103991972 B CN 103991972B CN 201410216527 A CN201410216527 A CN 201410216527A CN 103991972 B CN103991972 B CN 103991972B
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- dispersion agent
- dirt dispersion
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- inhibiting properties
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Abstract
The invention discloses a kind of dirt dispersion agent, it is made up of 40wt.% ~ 60wt.% α ', α-diamino hexanodioic acid tetramethylene phosphoric acid, 20wt.% ~ 30wt.% vinylformic acid-2-acrylamide-2-methyl propane sulfonic multipolymer, 4wt.% ~ 10wt.% zinc acetate, 5wt.% ~ 20wt.% deionized water.Dirt dispersion agent of the present invention all has good scale inhibition effect to calcium phosphate, calcium carbonate, scale-inhibiting properties is better, there is good dispersing property and good corrosion inhibition simultaneously, its dosage is 5 ~ 10mg/L, under static state, temperature 80 DEG C, pH value is about 9, scale-inhibiting properties can reach more than 93%, dispersing property can reach more than 89%, and Performance comparision is superior compared with dirt dispersion agent commercially available at present, the few and environmental protection of dosage.
Description
Technical field
The invention belongs to water-treatment technology field, be specifically related to a kind of environmental protection, be used in high temperature, the dirt dispersion agent of high ph-values.
Background technology
All there is the problem of pipeline scale at process buck in many chemical plant at home or power plant, this not only makes pipeline transportation be hindered, and also has certain corrosion-damaged effect to pipeline.The main method of current process scale inhibition has acid wash, and acid wash subject matter is: the first, and the sewage of discharge can not be up to standard, has pollution to environment.The second, this kind of method also has certain corrosive nature to pipeline.A kind of removing method is also had to be exactly mechanical removal method, run up under the effect of cleaning cutter in water in pipeline, powerful excision scale inhibition, because the thickness of calcium carbonate in pipeline etc. is different, so section is ununiformity, cleaning cutter is at the easy swaging clamp of pipe content, and the easy blocking pipe of fragment of excision, so this kind of method neither can be good at accepting.And above-mentioned two kinds of methods costly, and range of application is not very extensive.What current research was the hottest is exactly dirt dispersion agent, phosphorus system Scale inhibitors has good scale inhibition effect to calcium carbonate, but some conventional small molecules phosphorus system Scale inhibitorss easily decompose in water, produce secondary sedimentation product phosphoric acid calcium, not only fouling has a certain impact to pipeline, and outer pollution discharging environment, be therefore badly in need of a kind of environmental protection, efficiently dirt dispersion agent at present and solve the problem of chemical industry equipment pipeline scale in existing water treatment field.
Summary of the invention
Technical problem to be solved by this invention is the contaminate environment, the inefficient shortcoming of scale inhibition that overcome the existence of existing dirt dispersion agent, provides the dirt dispersion agent that a kind of environmental protection, scale-inhibiting properties and dispersing property are good.
Solving the problems of the technologies described above adopted technical scheme is that described dirt dispersion agent is made up of the raw material of following percent mass proportioning:
Above-mentioned dirt dispersion agent the best is made up of the raw material of following percent mass proportioning:
Above-mentioned α ', α-diamino hexanodioic acid tetramethylene phosphoric acid, vinylformic acid-2-acrylamide-2-methyl propane sulfonic multipolymer provide by the calm and peaceful water treatment company limited in Zaozhuang, Shandong Province, and wherein the molecular weight of vinylformic acid-2-acrylamide-2-methyl propane sulfonic multipolymer is 4000 ~ 5000 dalton.
The preparation method of above-mentioned dirt dispersion agent is: by α ', α-diamino hexanodioic acid tetramethylene phosphoric acid, vinylformic acid-2-acrylamide-2-methyl propane sulfonic multipolymer, zinc acetate add in deionized water, be stirred at 40 DEG C and dissolve completely, obtain colourless or amber dirt dispersion agent.
The phosphorus system Scale inhibitors α ' that the present invention selects molecular weight relatively large, α-diamino hexanodioic acid tetramethylene phosphoric acid, it not easily decomposes in water, scale-inhibiting properties is better, select vinylformic acid-2-acrylamide-2-methyl propane sulfonic multipolymer, it has good scale inhibition effect to calcium phosphate, and sulfonate group has good dispersing property simultaneously, select zinc acetate and vinylformic acid-2-acrylamide-2-methyl propane sulfonic polymer combination to use in addition, there is good corrosion inhibition.The dosage of dirt dispersion agent of the present invention is 5 ~ 10mg/L, dosage is less, under static state, temperature 80 DEG C, pH value is about 9, scale-inhibiting properties can reach more than 93%, dispersing property can reach more than 89%, and Performance comparision is superior compared with dirt dispersion agent commercially available at present, and environmental protection.
Embodiment
Below in conjunction with embodiment, the present invention is described in more detail, but protection scope of the present invention is not limited only to these embodiments.
Embodiment 1
To prepare 100g dirt dispersion agent, it is composed as follows:
Its preparation method is: add in 17g deionized water by 50g α ', α-diamino hexanodioic acid tetramethylene phosphoric acid, 25g vinylformic acid-2-acrylamide-2-methyl propane sulfonic multipolymer, 8g zinc acetate, stirs 30 minutes, obtain dirt dispersion agent under 40 DEG C of conditions.
The α ' of the present embodiment, α-diamino hexanodioic acid tetramethylene phosphoric acid, vinylformic acid-2-acrylamide-2-methyl propane sulfonic multipolymer provide by the calm and peaceful water treatment company limited in Zaozhuang, Shandong Province, and wherein the molecular weight of vinylformic acid-2-acrylamide-2-methyl propane sulfonic multipolymer is 4000 ~ 5000 dalton.
Embodiment 2
To prepare 100g dirt dispersion agent, it is composed as follows:
Its preparation method is identical with embodiment 1.
Embodiment 3
To prepare 100g dirt dispersion agent, it is composed as follows:
Its preparation method is identical with embodiment 1.
Embodiment 4
To prepare 100g dirt dispersion agent, it is composed as follows:
Its preparation method is identical with embodiment 1.
Embodiment 5
To prepare 100g dirt dispersion agent, it is composed as follows:
Its preparation method is identical with embodiment 1.
In order to verify beneficial effect of the present invention, contriver adopts EDTA volumetry and spectrophotometer to measure the scale-inhibiting properties of Scale inhibitors dispersion agent prepared by the embodiment of the present invention 1 ~ 5 and dispersing property, and test result is in table 1, and concrete testing method is as follows:
(1) scale-inhibiting properties testing method
The CaCl of 50mL deionized water and 4mL6mg/mL is added in 100mL volumetric flask
2the aqueous solution, shakes up, and then adds Scale inhibitors dispersion agent, shakes up, slowly add 4mL18.3mg/mLNaHCO with drop-burette
3the aqueous solution (limit edged shakes up), add 38mL deionized water again, its pH value is regulated to be about 9 with boric acid, in gained solution, the concentration of Scale inhibitors dispersion agent is 7mg/L, volumetric flask is placed in 80 DEG C of water-bath reactions 10 hours, doing blank test (except not adding except dirt dispersion agent, other condition is all the same in blank test) simultaneously, then surveying scale-inhibiting properties by EDTA volumetry.
(2) dispersing property testing method
The CaCl of 50mL deionized water and 4mL6mg/mL is added in 100mL Erlenmeyer flask
2the aqueous solution, shakes up, and then adds Scale inhibitors dispersion agent, shakes up, slowly add 4mL18.3mg/mLNaHCO with drop-burette
3the aqueous solution (limit edged shakes up), then add 4mL10m
gthe Fe of/L
2+(with FeSO
4meter), finally add 34mL deionized water, its pH value is regulated to be about 9 with boric acid, in gained solution, the concentration of Scale inhibitors dispersion agent is 7mg/L, Erlenmeyer flask is placed in 80 DEG C of water-bath reactions 5 hours, measuring absorbancy with spectrophotometer in 420nm place, doing blank test (except not adding except dirt dispersion agent, other condition is all the same in blank test) simultaneously.
The scale inhibition of table 1 dirt dispersion agent of the present invention and dispersing property
| Dirt dispersion agent | Temperature (DEG C) | Dosage (mg/L) | PH value | Scale-inhibiting properties | Dispersing property |
| Embodiment 1 | 80 | 7 | 9.14 | 96％ | 92％ |
| Embodiment 2 | 80 | 7 | 9.14 | 95％ | 89％ |
| Embodiment 3 | 80 | 7 | 9.14 | 94％ | 90％ |
| Embodiment 4 | 80 | 7 | 9.14 | 93％ | 90％ |
| Embodiment 5 | 80 | 7 | 9.14 | 93％ | 91％ |
As can be seen from Table 1, the scale-inhibiting properties of dirt dispersion agent of the present invention can reach more than 93%, and dispersing property can more than 89%.
Claims (1)
1. a dirt dispersion agent, is characterized in that it is made up of the raw material of following percent mass proportioning:
The molecular weight of above-mentioned vinylformic acid-2-acrylamide-2-methyl propane sulfonic multipolymer is 4000 ~ 5000 dalton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410216527.8A CN103991972B (en) | 2014-05-22 | 2014-05-22 | A kind of dirt dispersion agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410216527.8A CN103991972B (en) | 2014-05-22 | 2014-05-22 | A kind of dirt dispersion agent |
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| Publication Number | Publication Date |
|---|---|
| CN103991972A CN103991972A (en) | 2014-08-20 |
| CN103991972B true CN103991972B (en) | 2016-02-17 |
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| CN201410216527.8A Expired - Fee Related CN103991972B (en) | 2014-05-22 | 2014-05-22 | A kind of dirt dispersion agent |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114291909B (en) * | 2021-12-21 | 2023-09-08 | 宁夏理工学院 | Scale inhibition dispersing agent |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101302060A (en) * | 2008-05-30 | 2008-11-12 | 山西太钢不锈钢股份有限公司 | Corrosion and scale inhibitor for industrial recirculated cooling water |
| CN101759300A (en) * | 2008-12-26 | 2010-06-30 | 上海淼清水处理有限公司 | Composite scale and corrosion inhibitor |
| CN102923868A (en) * | 2012-11-15 | 2013-02-13 | 天津大学 | Composite corrosion and scale inhibitor for reclaimed water as circulating cooling water of power plant |
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2014
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101302060A (en) * | 2008-05-30 | 2008-11-12 | 山西太钢不锈钢股份有限公司 | Corrosion and scale inhibitor for industrial recirculated cooling water |
| CN101759300A (en) * | 2008-12-26 | 2010-06-30 | 上海淼清水处理有限公司 | Composite scale and corrosion inhibitor |
| CN102923868A (en) * | 2012-11-15 | 2013-02-13 | 天津大学 | Composite corrosion and scale inhibitor for reclaimed water as circulating cooling water of power plant |
Non-Patent Citations (1)
| Title |
|---|
| 2,5-二氨基己二酸四亚甲基膦酸的阻垢缓蚀性能研究;何好启 等;《工业水处理》;20080831;第28卷(第8期);结论部分 * |
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