CN104649425A - Synthetic polymer scale inhibitor and dispersant - Google Patents
Synthetic polymer scale inhibitor and dispersant Download PDFInfo
- Publication number
- CN104649425A CN104649425A CN201310576573.4A CN201310576573A CN104649425A CN 104649425 A CN104649425 A CN 104649425A CN 201310576573 A CN201310576573 A CN 201310576573A CN 104649425 A CN104649425 A CN 104649425A
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- Prior art keywords
- synthetic polymer
- dispersion agent
- dirt
- pam
- paa
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/12—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Abstract
The invention provides a synthetic polymer scale inhibitor and dispersant, which is composed of a poly maleic anhydride polyacrylic acid (PAA), polyacrylamide (PAM), sodium acrylate, poly ethylene oxide, dioctyl sodium sulfosuccinate, and a solvent. A preparation method of the product is as below: adding solvent into a reactor, adding PAA, PAM and sodium acrylate into the reactor, heating and stirring uniformly; and adding poly maleic anhydride, dioctyl sodium sulfosuccinate and poly ethylene oxide, and reacting for 60 min.
Description
Technical field
The present invention relates to a kind of dirt dispersion agent, is more particularly a kind of synthetic polymer dirt dispersion agent, belongs to chemical technology and water treatment field.
Background technology
Along with developing rapidly of polymer chemistry and constantly bringing forth new ideas of polymer chemistry synthetic technology, the polymkeric substance of large quantities of Multifunction constantly occurs.Particularly to the further investigation of the relation between the Structure and Properties of polymkeric substance, people can synthesize according to the requirement of use properties the macromolecular compound being more suitable for actual production and requiring.The development of copolymerization and the good use properties of multipolymer, make copolymerization product have prospect of the application more widely.Water solubility copolymer plays an important role in using as the anti-incrustation corrosion inhibitor in industrial circulating cooling water system.These water-soluble polymerss and water solubility copolymer are in use, the ability structure macromolecular with it of its antiscaling dispersion and macromolecular relative molecular mass close relation, being controlled within the specific limits by the relative molecular mass of polymkeric substance, is the main method obtaining high performance products.Polymeric scale inhibitor dispersion agent is the functional high molecule material of a large class excellent performance, and the functional group that can play antiscaling dispersion effect that they have mainly contains: carboxyl, phosphate, amide group, hydroxyl, sulfonic group, ester group etc.The synthetic method of this kind of water soluble functional polymers material mainly contains: free radical all closes the reaction kinetic etc. on reaction, free radical copolymerization, condensation polymerization reaction etc., macromolecular chain.
Polymkeric substance, as the dirt dispersion agent of industrial circulating cooling water system, must possess two conditions the most basic: one is have to have an effect with harmful ion in water, stops these harmful ions to form scale buildup in the functional group on the surface of equipment pipe.Polymkeric substance containing various difference in functionality group is also known as making functional high molecule material, and these functional groups not only have scale inhibition function but also must be water-soluble.Two is that macromolecular relative molecular mass has certain scope.Relative molecular mass scope required by the antiscaling dispersion best effect of polyacrylic acid (PAA) is between 500 ~ 20000.Equally, the relative molecular mass scope required by the best antiscaling dispersion effect of polyacrylamide (PAM) is between 8000 ~ 10000.When relative molecular mass is too little, macromole is difficult to absorption and gathers dirt particles surface, and dissemination is poor.Relative molecular mass is too large, can play " bridging action " and make accumulation of dirt, form cotton-shaped dirt.Polymkeric substance stops the formation of dirt probably can analyze from suppressing the generation of crystal and growth and their dispersion dirt particles two aspects.
Some polymkeric substance can not only prevent dirt, and the gap that can penetrate into dirt is gone, and makes dirt lax and deviates from gradually.During as there is not bery serious dirt, the poly-sodium acrylate adding higher concentration (30 ~ 100mg/l) in water, water will become muddy gradually, and turbidity increases, and show that dirt is lax gradually and flow out with water, but by time that this way scale removal will be longer.Polymaleic anhydride and polyacrylamide etc., apart from outside suppression calcium carbonate and calcium phosphate scale, can also make system (not using dispersion agent in the past) the stripping phosphate anion gradually that phosphoric acid salt crust has occurred.Such as certain system, after using the polyacrylamide zinc that " chromic salt " be hydrolyzed instead, although do not re-use poly-phosphate, always can detect the phosphate anion of about 3 ~ 4mg/l in water, after some months, not serious phosphoric acid salt crust dissolves substantially.
Summary of the invention
The object of the invention is to find a kind of maleic anhydride polymerization Scale inhibitors, can directly use, method is fast and convenient.
In order to this product that solves the problem adopts following preparation method: add solvent in the reactor, add in reactor by polyacrylic acid (PAA), polyacrylamide (PAM) and sodium acrylate, heated and stirred is even.Add polymaleic anhydride, dioctyl sodium sulphosuccinate and polyoxyethylene at about 45 ~ 50 DEG C, react 60 minutes, can product be obtained.
Specific embodiment
Embodiment 1:
Preparation method: add solvent in the reactor, add in reactor by polyacrylic acid (PAA), polyacrylamide (PAM) and sodium acrylate, heated and stirred is even.Add polymaleic anhydride, dioctyl sodium sulphosuccinate and polyoxyethylene at about 45 ~ 50 DEG C, react 60 minutes.
This product can not only prevent dirt, and the gap that can penetrate into dirt is gone, and makes dirt lax and deviates from gradually.
Embodiment 2:
Preparation method is the same.
This product makes the system stripping phosphate anion gradually that phosphoric acid salt crust occurs.
Embodiment 3:
Preparation method is the same.
When the present invention is adsorbed on the surface such as crystallization and dirt particles, strengthen the electronegativity of particulate, lax polymkeric substance stops again micropartical length adjacent to each other and poly-, thus makes dirt particles be kept the suspended state disperseed for a long time, not easily forms dirt.
This synthetic polymer dirt dispersion agent, particularly the synthetic polymer dirt dispersion agent of anionic has very high surfactivity in water, they are easily adsorbed onto on nucleus in water, the surface energy of nucleus is reduced, little crystallization is dissolved again, make macrocrystalline lattice distortion, destroy the orientation of the crystalline element of dirt.The powerful dispersant with high efficiency of above-mentioned polymkeric substance and other, as polyoxyethylene and sterol derivative with the use of, dissemination will strengthen, and be conducive to removing established dirt.The positive usual amounts of this product is less, and namely 0.1mg/l shows dissemination, is advisable with 2 ~ 10mg/l, but should allocate according to situations such as water quality.
Be clearly and completely described the technical scheme of the embodiment of the present invention above concrete enforcement, described embodiment is only the present invention's part embodiment, instead of whole embodiments, so protection scope of the present invention is not limited only to this.
Claims (5)
1. a synthetic polymer dirt dispersion agent, is characterized in that, it is by polymaleic anhydride, polyacrylic acid (PAA), polyacrylamide (PAM), sodium acrylate, polyoxyethylene, dioctyl sodium sulphosuccinate, solvent composition.
2. according to claim 1, described synthetic polymer dirt dispersion agent, is characterized in that, the relative molecular mass scope required by antiscaling dispersion best effect of described polyacrylic acid (PAA) is between 500 ~ 20000.
3. according to claim 1, described synthetic polymer dirt dispersion agent, is characterized in that, the relative molecular mass scope required by best antiscaling dispersion effect of described polyacrylamide (PAM) is between 8000 ~ 10000.
4. according to claim 1, described synthetic polymer dirt dispersion agent, is characterized in that, described solvent is chloroform.
5. according to Claims 1-4, described synthetic polymer dirt dispersion agent, it is characterized in that, be by weight: polymaleic anhydride 40 ~ 50 parts, polyacrylic acid (PAA) 20 ~ 35 parts, polyacrylamide (PAM) 10 ~ 20 parts, sodium acrylate 2 ~ 8 parts, polyoxyethylene 1 ~ 10 part, dioctyl sodium sulphosuccinate 1 ~ 5 part, chloroform 15 ~ 25 parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310576573.4A CN104649425A (en) | 2013-11-18 | 2013-11-18 | Synthetic polymer scale inhibitor and dispersant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310576573.4A CN104649425A (en) | 2013-11-18 | 2013-11-18 | Synthetic polymer scale inhibitor and dispersant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104649425A true CN104649425A (en) | 2015-05-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310576573.4A Pending CN104649425A (en) | 2013-11-18 | 2013-11-18 | Synthetic polymer scale inhibitor and dispersant |
Country Status (1)
| Country | Link |
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| CN (1) | CN104649425A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106699598A (en) * | 2016-11-18 | 2017-05-24 | 北京誉天利化工有限公司 | Water soluble dispersion scale inhibitor and application thereof |
| CN115448473A (en) * | 2022-08-29 | 2022-12-09 | 常熟金陵海虞热电有限公司 | Scale inhibitor for circulating cooling water of thermal power plant and preparation method thereof |
-
2013
- 2013-11-18 CN CN201310576573.4A patent/CN104649425A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106699598A (en) * | 2016-11-18 | 2017-05-24 | 北京誉天利化工有限公司 | Water soluble dispersion scale inhibitor and application thereof |
| CN106699598B (en) * | 2016-11-18 | 2019-03-01 | 北京誉天利化工有限公司 | A kind of water soluble disperse antisludging agent and its application |
| CN115448473A (en) * | 2022-08-29 | 2022-12-09 | 常熟金陵海虞热电有限公司 | Scale inhibitor for circulating cooling water of thermal power plant and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150527 |
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| WD01 | Invention patent application deemed withdrawn after publication |