CN101805068A - Scale inhibition dispersing agent and preparation method thereof - Google Patents
Scale inhibition dispersing agent and preparation method thereof Download PDFInfo
- Publication number
- CN101805068A CN101805068A CN 201010147936 CN201010147936A CN101805068A CN 101805068 A CN101805068 A CN 101805068A CN 201010147936 CN201010147936 CN 201010147936 CN 201010147936 A CN201010147936 A CN 201010147936A CN 101805068 A CN101805068 A CN 101805068A
- Authority
- CN
- China
- Prior art keywords
- scale inhibition
- dispersing agent
- maleic anhydride
- dispersion agent
- allyl ethers
- 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
Links
Abstract
The invention relates to the technical field of a water treatment reagent, in particular to a scale inhibition dispersing agent and a preparation method thereof. The scale inhibition dispersing agent belongs to a novel copolymer of maleic anhydride and allyl ether.The method for preparing the scale inhibition dispersing agent comprises the following steps: dripping evocating agents of an ammonium persulfate water solution into a water solution containing the maleic anhydride and the allyl ether when the reaction temperature is between 60 and 90 DEG C; and stirring the mixture to react for 3 to 6 hours after the dripping is completed. Because the molecular structure of the scale inhibition dispersing agent KW-360 of the invention adopts allyl ether type functional groups, the products have better scale inhibition dispersing performance than that of the existing copolymer type scale inhibition agent in common use. Particularly, the calcium carbonate scale inhibition performance is excellent, and the scale inhibition dispersing agent belongs to the ideal scale inhibition dispersing agent under the water quality conditions of high hardness, high alkali content and high concentration times.
Description
Technical field
The present invention relates to the water treatment agent technical field, especially a kind of dirt dispersion agent and preparation method thereof.
Background technology
Scale inhibitors, dispersion agent are the chemical agents that a class accounts for larger specific gravity in the daily processing of chemical such as recirculated water, reverse osmosis system.The Scale inhibitors that is applied the earliest in the water treatment approximately will be calculated polymeric phosphate.Polymeric phosphate also has corrosion inhibition concurrently except that having scale effect.But its shortcoming is a facile hydrolysis is orthophosphoric acid salt, if control improperly, can make original not too serious calcium carbonate scale problem change very serious calcium phosphate scale problem into.Appearance along with the organic phospho acid sixties in 20th century (salt) Scale inhibitors, as hydroxy ethylene diphosphonic acid (HEDP) and Amino Trimethylene Phosphonic Acid (ATMP) etc., show that the mitigation and antiscaling technology of lime carbonate has been obtained breakthrough in the water, particularly the nineties in 20th century is by a kind of novel Scale inhibitors polyamino polyether methylene phosphonic acids (PAPEMP) of Calgon company exploitation, have very high calcium tolerance, resistance carbonic acid dirt, resistance sulfuric acid dirt are very capable.These organic phospho acids all are can be closed, be adsorbed in by electrostatic force on the active site that causes the plane of crystal that dirty metallic salt forming by the part official in the molecule, suppress crystal growth, thereby make many crystal of formation remain on microcrystalline state; Meanwhile, because the Scale inhibitors molecule adsorbs on plane of crystal, make the crystal of bearing produce distortion.The crystal after the distortion and the adhesive power of metallic surface weaken, and therefore are difficult for being deposited on the metallic surface; Those do not participate in the functional group of absorption, crystal are presented ionic, make crystal be in dispersion state because of the repulsive force of electric charge increases.Therefore, the insoluble inorganic salt in their energy disperse water, prevention or interference indissoluble inorganic salt are in deposition, the fouling on hardware surface, and keeping hardware has the good heat transfer effect, guarantees to produce normally to carry out.But organic phosphoric acid (salt) when scale inhibition disperses inorganic scale also for water in bacterium and algae abundant nutrition is provided, make that the sterilization algae removal difficulty strengthens in the water treatment procedure, if sterilization effect is bad, can aggravate the corrosion of recirculated water equipment by bacterial foundry loam, reinforcement along with national environmental consciousness, country is more and more stricter to the emission limit set of phosphorus, and without phosphorus, low-phosphorous efficient scale inhibitor becomes new development trend.
It is good that polymkeric substance has a scale-inhibiting properties as dirt dispersion agent, and dispersing property is good, and is insensitive to oxygenant, Heat stability is good, and many advantages such as phosphorus content is low or not phosphorous are the focuses of water treatment field research always.Polymkeric substance develops into binary, ternary and multiple copolymer gradually from homopolymer at present, and various monomers with difference in functionality are introduced in a large number, have formed the field of a uniqueness.Present domestic more common polymkeric substance mainly contains carboxylic-acid polymkeric substance, sulfonic acid base polymer, phosphorous base polymer etc., and bibliographical information is less at home but contain the allyl ethers analog copolymer.
Summary of the invention
In order to overcome existing Scale inhibitors facile hydrolysis is orthophosphoric acid salt, thereby changes the deficiency of very serious calcium phosphate scale problem into, the invention provides a kind of dirt dispersion agent and preparation method thereof.
The technical solution adopted for the present invention to solve the technical problems is: a kind of dirt dispersion agent is the new copolymer of maleic anhydride and allyl ethers.
According to another embodiment of the invention, the solid content that further comprises described multipolymer is 35～45%, and molecular weight is 500～5000.
According to another embodiment of the invention, the weight ratio 50～80: 20～50 that further comprises described maleic anhydride and allyl ethers.
According to another embodiment of the invention, comprise that further described allyl ethers is an allyl polyethenoxy ether.
A kind of method for preparing dirt dispersion agent when temperature of reaction is 60～90 ℃, drips the initiator ammonium persulfate aqueous solution in the aqueous solution that contains maleic anhydride, allyl ethers, dropwise, and the stirring reaction time is 3～6 hours.
According to another embodiment of the invention, the mass ratio that further comprises described initiator and described maleic anhydride, described allyl ethers is 0.15: 1: 0.5～1.
The invention has the beneficial effects as follows, dirt dispersion agent KW-360 of the present invention is owing to introduced allyl ether series functional group in its molecular structure, this product is had than the better scale inhibition and dispersion performance of copolymer analog Scale inhibitors commonly used at present, the performance that particularly hinders calcium carbonate scale is especially outstanding, is ideal dirt dispersion agent under high hard, high-alkali, the high concentration multiple condition of water quality.
Embodiment
A kind of dirt dispersion agent is the new copolymer of maleic anhydride, allyl ethers.The solid content of described multipolymer is 35～45%, and molecular weight is 500～5000.The weight ratio 50～80: 20～50 of described maleic anhydride and allyl ethers.Described allyl ethers is an allyl polyethenoxy ether.
A kind of method for preparing dirt dispersion agent when temperature of reaction is 60～90 ℃, drips the initiator ammonium persulfate aqueous solution in the aqueous solution that contains maleic anhydride, allyl ethers, dropwise, and the stirring reaction time is 3～6 hours.The mass ratio of described initiator and described maleic anhydride, described allyl ethers is 0.15: 1: 0.5～1.
The invention provides is a kind of dirt dispersion agent, new copolymer for maleic anhydride, allyl ethers, the solid content of multipolymer is 35～45%, the molecular weight of multipolymer is 500～5000, the mass ratio 50～80: 20～50 of maleic anhydride, allyl ethers, dirt dispersion agent of the present invention contains carboxyl, ether functional group simultaneously, this product is had than the better scale inhibition and dispersion performance of copolymer analog Scale inhibitors commonly used at present, the performance that particularly hinders calcium carbonate scale is especially outstanding, is ideal dirt dispersion agent under high hard, high-alkali, the high concentration multiple condition of water quality.
Content for a better understanding of the present invention is described further below in conjunction with specific embodiment, but is not limited to this.
Embodiment 1
In the four-hole boiling flask that agitator, reflux exchanger, constant voltage addition funnel and thermometer are housed, add maleic anhydride 30g, allyl ethers 15g and deionized water 48g, open and stir heat riser, maleic anhydride is fully dissolved, temperature is under 70 ℃, dropping contains the solution of ammonium persulphate 4.5g and deionized water 20g, dropwise back insulation reaction 5 hours, cool off product.The solution ph of solid content 39.4%, 1% is 2.58.
Embodiment 2
In the four-hole boiling flask that agitator, reflux exchanger, constant voltage addition funnel and thermometer are housed, add maleic anhydride 30g, allyl ethers 20g and deionized water 50g, open and stir heat riser, maleic anhydride is fully dissolved, temperature is under 70 ℃, dropping contains the solution of ammonium persulphate 4.5g and deionized water 20g, dropwise back insulation reaction 6 hours, cool off product.The solution ph of solid content 40.8%, 1% is 2.52.
Embodiment 3
In the four-hole boiling flask that agitator, reflux exchanger, constant voltage addition funnel and thermometer are housed, add maleic anhydride 30g, allyl ethers 20g and deionized water 50g, open and stir heat riser, maleic anhydride is fully dissolved, temperature is under 85 ℃, dropping contains the solution of ammonium persulphate 4.5g and deionized water 20g, dropwise back insulation reaction 5 hours, cool off product.The solution ph of solid content 40.5%, 1% is 2.50.
1% solution PH measuring method in the foregoing description is as follows:
In beaker, take by weighing the 1.00g medicament, add distilled water to the 100g gross weight, solution stirring is even, on potentiometric titrator, measure the solution pH value.
Medicament determination of solid content method in the foregoing description is as follows:
Prior to 120 ℃ of weighing bottles that are dried to constant weight, take by weighing about 1g sample (being accurate to 0.001g) with pre-, carefully shake and make sample mobile naturally, formation layer of even film at the bottom of bottle.Put into electrically heated drying cabinet then, under 120 ℃, be dried to constant weight.
The solids content X that represents with mass percent calculates according to following formula
X＝(M1-M2)/M*100
M1 is the weighing bottle quality, g
M2 is dried test portion and weighing bottle quality, g
M is the test portion quality, g
Embodiment 4 resistance lime carbonate performance measurements
As follows to the dirt dispersion agent that above-mentioned example 1～3 is obtained with the resistance lime carbonate performance measurement result of the dirt dispersion agent HPMA that uses always at present:
| Embodiment | Drug concentration mg/L | Calcium hardness mg/L is (with CaCO 3Meter) | Total alkalinity mg/L is (with CaCO 3Meter) | Scale inhibition performance % |
| ??1 | ??5 | ??323.46 | ??327.26 | ??76.15 |
| ??1 | ??10 | ??371.02 | ??377.44 | ??97.73 |
| ??1 | ??15 | ??375.18 | ??381.81 | ??99.62 |
| ??2 | ??5 | ??323.46 | ??327.26 | ??76.15 |
| ??2 | ??10 | ??369.98 | ??373.08 | ??97.26 |
| ??2 | ??15 | ??373.36 | ??379.62 | ??98.79 |
| ??3 | ??5 | ??315.37 | ??305.12 | ??72.48 |
| ??3 | ??10 | ??371.98 | ??358.73 | ??98.17 |
| ??3 | ??15 | ??371.98 | ??358.73 | ??98.17 |
| ??HPMA | ??5 | ??270.62 | ??282.16 | ??52.17 |
| ??HPMA | ??10 | ??283.94 | ??302.16 | ??58.21 |
| ??HPMA | ??15 | ??298.93 | ??311.05 | ??65.02 |
| Blank | ??/ | ??155.66 | ??150.54 | ??/ |
Resistance lime carbonate assessment of performance method is as follows:
Add analytical pure calcium chloride and sodium bicarbonate in tap water, make the preparation water sample, the calcium ion wherein and the concentration of bicarbonate radical are 250mg/l.Get 750ml preparation water sample and be placed in the beaker of each 1000ml, one of them beaker is not with water conditioner, and remaining all adds a certain amount of water conditioner.Beaker is inserted in the water bath with thermostatic control that is warming up to about 50 ℃, be warming up to 80 ℃ then, carry out evaporation concentration.Beginning constant temperature also clocks.When testing evaporation concentration, take out beaker to the 500mL scale marks.Test solution is moved in the 500mL volumetric flask, and shake up, add a cover and continue to insert in 80 ℃ of waters bath with thermostatic control, began constant temperature 10 hours from timing.And be calculated as follows the scale inhibition performance r of water conditioner:
In the formula: Ca
0 2+---the Ca of actual measurement before the test solution test
2+Concentration multiply by cycles of concentration again and theoretical Ca
2+Concentration;
Ca
1 2+---add the test solution of Scale inhibitors, the Ca after the test
2+Concentration;
Ca
2 2+---do not add the Ca of test solution (blank) under same test conditions of Scale inhibitors
2+Concentration.
Annotate: the Ca in the literary composition
2+And HCO
3Be CaCO
3Meter.
Dirt dispersion agent KW-360 of the present invention is owing to introduced allyl ether series functional group in its molecular structure, this product is had than the better scale inhibition and dispersion performance of copolymer analog Scale inhibitors commonly used at present, the performance that particularly hinders calcium carbonate scale is especially outstanding, is ideal dirt dispersion agent under high hard, high-alkali, the high concentration multiple condition of water quality.
With above-mentioned foundation desirable embodiment of the present invention is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the specification sheets, must determine its technical scope according to the claim scope.
Claims (6)
1. a dirt dispersion agent is characterized in that, is the new copolymer of maleic anhydride and allyl ethers.
2. dirt dispersion agent according to claim 1 is characterized in that, the solid content of described multipolymer is 35～45%, and molecular weight is 500～5000.
3. dirt dispersion agent according to claim 1 is characterized in that, the weight ratio 50～80: 20～50 of described maleic anhydride and allyl ethers.
4. dirt dispersion agent according to claim 1 is characterized in that, described allyl ethers is an allyl polyethenoxy ether.
5. a method for preparing dirt dispersion agent is characterized in that, when temperature of reaction is 60～90 ℃, drips the initiator ammonium persulfate aqueous solution in the aqueous solution that contains maleic anhydride, allyl ethers, dropwises, and the stirring reaction time is 3～6 hours.
6. the method for preparing the scale inhibition decentralized system according to claim 5 is characterized in that, the mass ratio of described initiator and described maleic anhydride, described allyl ethers is 0.15: 1: 0.5～1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010147936 CN101805068A (en) | 2010-04-16 | 2010-04-16 | Scale inhibition dispersing agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010147936 CN101805068A (en) | 2010-04-16 | 2010-04-16 | Scale inhibition dispersing agent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101805068A true CN101805068A (en) | 2010-08-18 |
Family
ID=42607051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010147936 Pending CN101805068A (en) | 2010-04-16 | 2010-04-16 | Scale inhibition dispersing agent and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101805068A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181023A (en) * | 2011-03-25 | 2011-09-14 | 兰州交通大学 | Composite water quality stabilizer JTW-3 and preparation method thereof |
| CN102634326A (en) * | 2012-03-21 | 2012-08-15 | 中国石油天然气股份有限公司 | Barium scale inhibitor for alkaline-surfactant-polymer flooding oil well |
| CN103837657A (en) * | 2014-03-18 | 2014-06-04 | 山东大学 | Method suitable for evaluating performance of deep-layer brine scale inhibitor |
| CN103833148A (en) * | 2012-11-21 | 2014-06-04 | 中国海洋石油总公司 | Efficient composite scale inhibitor |
| CN105621640A (en) * | 2016-01-06 | 2016-06-01 | 重庆大学 | Flue gas desulfurization antisludging agent |
| CN106279560A (en) * | 2016-07-28 | 2017-01-04 | 芜湖弘马新材料有限公司 | A kind of preparation method and application of the calcium carbonate dispersant for PVC profile |
| CN106748339A (en) * | 2017-03-21 | 2017-05-31 | 天津市科莱博瑞科技有限公司 | A kind of ammonium chloride anti-caking agent |
| CN108559023A (en) * | 2018-05-19 | 2018-09-21 | 兰州交通大学 | A kind of preparation of novel environment friendly high-efficiency type water quality stabilizer RG-9 |
| CN108641046A (en) * | 2018-05-19 | 2018-10-12 | 兰州交通大学 | A kind of preparation of novel environment friendly high-efficiency type water quality stabilizer RG-15 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1112787A (en) * | 1993-07-20 | 1995-11-29 | 日本触媒株式会社 | Maleic copolymer, process for producing the same and use thereof |
-
2010
- 2010-04-16 CN CN 201010147936 patent/CN101805068A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1112787A (en) * | 1993-07-20 | 1995-11-29 | 日本触媒株式会社 | Maleic copolymer, process for producing the same and use thereof |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181023A (en) * | 2011-03-25 | 2011-09-14 | 兰州交通大学 | Composite water quality stabilizer JTW-3 and preparation method thereof |
| CN102634326A (en) * | 2012-03-21 | 2012-08-15 | 中国石油天然气股份有限公司 | Barium scale inhibitor for alkaline-surfactant-polymer flooding oil well |
| CN102634326B (en) * | 2012-03-21 | 2013-11-13 | 中国石油天然气股份有限公司 | Barium scale inhibitor for alkaline-surfactant-polymer flooding oil well |
| CN103833148A (en) * | 2012-11-21 | 2014-06-04 | 中国海洋石油总公司 | Efficient composite scale inhibitor |
| CN103837657A (en) * | 2014-03-18 | 2014-06-04 | 山东大学 | Method suitable for evaluating performance of deep-layer brine scale inhibitor |
| CN103837657B (en) * | 2014-03-18 | 2016-01-20 | 山东大学 | One is applicable to Deep Formation Brine scale inhibitor performance evaluation method |
| CN105621640A (en) * | 2016-01-06 | 2016-06-01 | 重庆大学 | Flue gas desulfurization antisludging agent |
| CN105621640B (en) * | 2016-01-06 | 2018-02-09 | 重庆大学 | A kind of flue gas desulfurization antisludging agent |
| CN106279560A (en) * | 2016-07-28 | 2017-01-04 | 芜湖弘马新材料有限公司 | A kind of preparation method and application of the calcium carbonate dispersant for PVC profile |
| CN106279560B (en) * | 2016-07-28 | 2018-09-21 | 芜湖弘马新材料有限公司 | A kind of preparation method and application of calcium carbonate dispersant for PVC profile |
| CN106748339A (en) * | 2017-03-21 | 2017-05-31 | 天津市科莱博瑞科技有限公司 | A kind of ammonium chloride anti-caking agent |
| CN108559023A (en) * | 2018-05-19 | 2018-09-21 | 兰州交通大学 | A kind of preparation of novel environment friendly high-efficiency type water quality stabilizer RG-9 |
| CN108641046A (en) * | 2018-05-19 | 2018-10-12 | 兰州交通大学 | A kind of preparation of novel environment friendly high-efficiency type water quality stabilizer RG-15 |
| CN108641046B (en) * | 2018-05-19 | 2020-09-08 | 兰州交通大学 | Preparation of environment-friendly efficient water quality stabilizer RG-15 |
| CN108559023B (en) * | 2018-05-19 | 2020-10-16 | 兰州交通大学 | Preparation of novel environment-friendly efficient water quality stabilizer RG-9 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101805068A (en) | Scale inhibition dispersing agent and preparation method thereof | |
| CN102198982B (en) | Scale and corrosion inhibitor for circulating cooling water | |
| CN104891684B (en) | Without phosphorus composite slow-corrosion scale resistor for bitter recirculated water and preparation method thereof | |
| CN102786158B (en) | Corrosion-inhibition scale inhibitor composition and corrosion-inhibition scale inhibitor and application thereof | |
| CN101913714B (en) | Reverse osmosis water treatment agent and preparation method thereof | |
| CN100434376C (en) | Low phosphate green composite corrosion and scale inhibitor for treating circular cooling water and its usage | |
| CN102732892B (en) | Metal corrosion inhibitor composition, metal corrosion inhibitor thereof and application thereof | |
| CN101967024B (en) | Phosphorus-free corrosion and scale inhibitor | |
| CN101768244B (en) | Method for synthesizing phosphorus-free corrosion-inhibition scale inhibitor for water treatment from natural products | |
| CN101182643A (en) | Environment-friendly type composite pre-film reagent used for recirculated cooling water system pre-film processing and method of use thereof | |
| CN101560022B (en) | Compound corrosion and scale inhibitor | |
| CN101607766A (en) | A kind of preparation that is used for the corrosion inhibiting and descaling agent of high alkaline high chlorine circulating cooling water | |
| CN102774969A (en) | Biodegradable non-phosphorous anti-scale corrosion inhibitor and preparation method thereof | |
| CN101186394B (en) | Anti-antisludging disperser and preparation method thereof | |
| CN102079584A (en) | Non-phosphorus scale and corrosion inhibitor, and preparation method and applications thereof | |
| CN105502704A (en) | Compound corrosion and scale inhibitor | |
| CN105084561B (en) | Non-phosphorus scale and corrosion inhibitor containing fulvic acid and preparation method thereof | |
| CN103833150B (en) | For the dirt dispersion agent and preparation method thereof of recirculating cooling water system | |
| CN107777789A (en) | Low-phosphor efficient anti-incrustation corrosion inhibitor for circulating water treatment and preparation method thereof | |
| CN113248032B (en) | Method for adjusting circulating water scale and corrosion inhibitor formula based on supplementing water calcium-alkali ratio | |
| CN104556417A (en) | Composite corrosion-inhibiting and antisludging agent composition and preparation method thereof | |
| Nowak et al. | Nuclearmagnetic resonance studies of selectively hindered internal motion of substrate analogs at the active site of pyruvate kinase | |
| CN110818097A (en) | Phosphorus-free corrosion and scale inhibitor and preparation method thereof | |
| CN101767885B (en) | Phosphorus-free corrosion and scale inhibitor | |
| CN101428910A (en) | High-efficiency customization production for low-phosphor water treatment agent and complete-set applied technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100818 |