CN108773917A - A kind of corrosion inhibiting and descaling agent and preparation method thereof - Google Patents
A kind of corrosion inhibiting and descaling agent and preparation method thereof Download PDFInfo
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- CN108773917A CN108773917A CN201810528856.4A CN201810528856A CN108773917A CN 108773917 A CN108773917 A CN 108773917A CN 201810528856 A CN201810528856 A CN 201810528856A CN 108773917 A CN108773917 A CN 108773917A
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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
- C02F5/14—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 phosphorus
- C02F5/145—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 phosphorus combined with inorganic substances
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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
- C02F2303/00—Specific treatment goals
- C02F2303/08—Corrosion inhibition
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
This application discloses a kind of corrosion inhibiting and descaling agent and preparation method thereof, raw material is 1-hydroxy ethylidene-1,1-diphosphonic acid, hydrolysis of polymaleic anhydride, sodium carbonate, sodium citrate, water, polyvinyl alcohol, kayexalate, solubilised sulphur black, ethylenediamine tetramethylene phosphonic acid, hydroxypropyl acrylate, sodium hydroxide, acetoxime, isopropanol, diethylene triamine pentamethylene phosphonic and hydroxy ethylene diphosphonic acid；Chelating solubilising, calcium tolerance is good to be dispersed in water calcium carbonate, calcium phosphate, calcium sulfate crystallite or silt, does not precipitate, bactericidal is environmentally safe, corrosion inhibition rate 97-99.9%；Scale inhibition performance 96-99%, pH value 7-9, using effect is good under the conditions of high rigidity, high-alkali, high ferro, high ph-values, high temperature and oil-containing, operation concentration 5-25 × 10‑6, 50-60 DEG C is placed 1-3 months, and scale inhibition effect 98-99%, complexing dispersion iron functionalized chemical stability is good, has fine dispersion effect to iron oxide, mud.
Description
Technical field
The application belong to cyclization reagent technology field more particularly to a kind of environmental protection, the good corrosion inhibiting and descaling agent of corrosion inhibition and its
Preparation method.
Background technology
Antisludging agent（scale inhibitor）：Be with can be in disperse water slightly solubility inorganic salts, inhibit or interfere with indissoluble
Precipitation, fouling function of the property inorganic salts in metal surface, and metal equipment is maintained to have a kind of medicament of good heat-transfer effect.
Antisludging agent can remove de-sludging and prevent the formation of incrustation scale, improve heat exchanger effectiveness, reduce electric energy or reduce disappearing for fuel
Consumption;Water process can also reduce blowdown, improve the utilization rate of water, can generally save 60% or more, meet the new policies of China's energy-saving and emission-reduction
Plan.
Chelation is by two or more of central ion and certain same multidentate ligands in accordance with certain condition
The process of complex with cyclic structure made of coordination atom bonding is known as chelation.Chelating effect the result is that so that
The effect of scaling cations (such as ca2+, Mg2+ etc.) and chelating agent generates stable chelate, to prevent its at dirty anion
The contact of (such as CO3 2-, SO42-, PO43- and SiO32- etc.) so that be greatly reduced at the probability of dirt.Chelation be by
What stoichiometry carried out, such as 1 EDTA molecules chelating, 1 bivalent metal ion.
Reverse osmosis antisludging agent is used exclusively for reverse osmosis（RO）System and nanofiltration（NF）And ultrafiltration（UF）The antisludging agent of system,
Film surface fouling can be prevented, water yield and production water quality can be improved, reduce operating cost.
Reverse osmosis antisludging agent ionizes after being dissolved in water, generates the strand of negatively charged, it is dissolved in Ca2+ formation
The complex compound or chelate of water play scale effect to make inorganic salt solubility increase.
RO antisludging agents are one kind of antisludging agent, main component：Organic dispersion, organic complex, antozone hydroxyl are poly-
Close object etc.；The scope of application：The processing of system suitable for pure water system RO process sections.Physical property appearance light color liquid, pH 1.0-
2.5。
The medicament, which belongs to compound formulation, has good collaboration Treatment Effects, can effectively prevent incrustation scale, microorganism glues body
Form, improve salt rejection rate, the water yield of system.Environment interface is friendly, treatment efficiency is stablized.
Corrosion inhibiter by concentration appropriate and in the form of be present in environment（Medium）When middle, material corrosion can be prevented or slowed down
Chemical substance or compound, therefore corrosion inhibiter is referred to as corrosion inhibitor.Its dosage very little (0.1%~1%), but effect
Significantly.The method of this protection metal claims corrosion inhibiter to protect.Corrosion inhibiter is used for neutral medium（Boiler feed water, recirculated cooling water）,
Acid medium（The hydrochloric acid to descale, the acid dip solution of plating piece derusting before being electroplated）And gas medium（Vapour phase inhibitor）.
In American Society Testing and Materials《It is defined about the standard of corrosion and corrosion test term》In, corrosion inhibiter is " one
Kind by concentration appropriate and in the form of be present in environment（Medium）When middle, the chemical substance or severalization of corrosion can be prevented or slowed down
Learn the mixture of substance." in general, corrosion inhibiter refers to that those are used in the substance that protective action is played in metal surface, is added micro
Or a small amount of this kind of chemical substance can be such that the corrosion rate of metal material is in the medium substantially reduced until being zero.It can also protect simultaneously
It is constant to hold the original Physical and mechanical properties of metal material.Reasonable employment corrosion inhibiter is to prevent metal and its alloy in surrounding medium
The middle effective ways corroded.Inhibiter technology is due to good effect and higher economic benefit, it has also become anti-corrosion
One of most widely used method in erosion technology.Especially in the production and processing of oil product, chemical cleaning, atmospheric environment, industry
With water, machine, instrument manufacture and petrochemical production process in, neutralization technology has become one of main anticorrosion means.
Anti-incrustation corrosion inhibitor is made of organic phosphine, excellent copolymer and copper inhibitor etc., is all had to carbon steel, copper and copper alloy
There is excellent corrosion inhibition, there is remarkable scale inhibition and dispersion performance to calcium carbonate, calcium phosphate.This product is mainly used for open type circulating cooling
Water treatment system is particularly suitable for the system of cupric equipment.This product can be used for the water quality of high pH, high alkalinity, high rigidity, be current
One of the water treatment agent of comparatively ideal uncomfortable pH alkaline operations.
Anti-incrustation corrosion inhibitor type is various, typically the compounding of the special compound of some structures, and will be according to metal watch planar
The factors such as condition, corrosive medium composition and operating condition carry out type selection.Common antisludging agent has inorganic poly- phosphorus in water process
Hydrochlorate, organic phospho acid, phosphine carboxylic acid, organic phospho acid fat, polycarboxylic acids etc..
From the mechanism of action, the solubilization of effect chelating, cohesion and the peptizaiton of antisludging agent, electrostatic repulsion work
Four parts are acted on, crystal lattice distortion.And in laboratory evaluation experiment, peptizaiton is the remedial measure of chelating effect, lattice
Distortion effect is the remedial measure of peptizaiton.
Invention content
The technical issues of solution：
The application in view of the above technical problems, provides a kind of corrosion inhibiting and descaling agent and preparation method thereof, solves existing water treatment scale
Agent is of high cost, not environmentally friendly enough, scale inhibition and dispersion is poor and is sustained the technical problems such as poor performance.
Technical solution：
A kind of corrosion inhibiting and descaling agent, the raw material of the corrosion inhibiting and descaling agent match as follows in parts by weight：1-hydroxy ethylidene-1,1-diphosphonic acid 2-6
Part；8-12 parts of hydrolysis of polymaleic anhydride；4-8 parts of sodium carbonate；6-10 parts of sodium citrate；100 parts of water；6-10 parts of polyvinyl alcohol；It is poly-
5-9 parts of sodium styrene sulfonate；4-8 parts of solubilised sulphur black；2-6 parts of ethylenediamine tetramethylene phosphonic acid；Hydroxypropyl acrylate is 17-
19 parts；1-10 parts of sodium hydroxide；3-5 parts of acetoxime；8-12 parts of isopropanol；2-6 parts of diethylene triamine pentamethylene phosphonic；Hydroxyl is sub-
6-8 parts of ethyl di 2 ethylhexyl phosphonic acid.
As a preferred technical solution of the present invention：The raw material of the corrosion inhibiting and descaling agent matches as follows in parts by weight：
2 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid；8 parts of hydrolysis of polymaleic anhydride；4 parts of sodium carbonate；6 parts of sodium citrate；100 parts of water；Polyvinyl alcohol 6
Part；5 parts of kayexalate；4 parts of solubilised sulphur black；2 parts of ethylenediamine tetramethylene phosphonic acid；Hydroxypropyl acrylate is 17
Part；1 part of sodium hydroxide；3 parts of acetoxime；8 parts of isopropanol；2 parts of diethylene triamine pentamethylene phosphonic；Hydroxy ethylene diphosphonic acid 6
Part.
As a preferred technical solution of the present invention：The raw material of the corrosion inhibiting and descaling agent matches as follows in parts by weight：
6 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid；12 parts of hydrolysis of polymaleic anhydride；8 parts of sodium carbonate；10 parts of sodium citrate；100 parts of water；Polyvinyl alcohol
10 parts；9 parts of kayexalate；8 parts of solubilised sulphur black；6 parts of ethylenediamine tetramethylene phosphonic acid；Hydroxypropyl acrylate is 19
Part；10 parts of sodium hydroxide；5 parts of acetoxime；12 parts of isopropanol；6 parts of diethylene triamine pentamethylene phosphonic；Hydroxy ethylene diphosphonic acid
8 parts.
As a preferred technical solution of the present invention：The raw material of the corrosion inhibiting and descaling agent matches as follows in parts by weight：
4 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid；10 parts of hydrolysis of polymaleic anhydride；6 parts of sodium carbonate；8 parts of sodium citrate；100 parts of water；Polyvinyl alcohol 8
Part；7 parts of kayexalate；6 parts of solubilised sulphur black；4 parts of ethylenediamine tetramethylene phosphonic acid；Hydroxypropyl acrylate is 18
Part；5 parts of sodium hydroxide；4 parts of acetoxime；10 parts of isopropanol；4 parts of diethylene triamine pentamethylene phosphonic；Hydroxy ethylene diphosphonic acid 7
Part.
As a preferred technical solution of the present invention：The preparation method of the corrosion inhibiting and descaling agent, includes the following steps：
The first step：According to parts by weight proportioning weigh 1-hydroxy ethylidene-1,1-diphosphonic acid, hydrolysis of polymaleic anhydride, sodium carbonate, sodium citrate,
Water, polyvinyl alcohol, kayexalate, solubilised sulphur black, ethylenediamine tetramethylene phosphonic acid, hydroxypropyl acrylate, acetone
Oxime, isopropanol, diethylene triamine pentamethylene phosphonic, hydroxy ethylene diphosphonic acid and sodium hydroxide；
Second step：Second is added in the four-hole boiling flask equipped with electric mixer, constant pressure funnel, thermometer and reflux condensing tube
Diamines tetramethylene phosphonic acid and water are heated to 65-85 DEG C, stir 15-25min, and 1-hydroxy ethylidene-1,1-diphosphonic acid and sodium citrate is added dropwise,
It is warming up to 85-105 DEG C, reacts 3-5h；
Third walks：Ethylenediamine, solubilised sulphur black, sodium carbonate and hydroxypropyl acrylate is added, is warming up to 110-120 DEG C, reaction
2-6h；
4th step：It is warming up to 120-140 DEG C, surplus stock is added, stirs 50-90min, is discharged after being cooled to room temperature up to inhibition
Antisludging agent.
Advantageous effect：
A kind of corrosion inhibiting and descaling agent of the present invention and preparation method thereof using above technical scheme is compared with the prior art, have with
Lower technique effect：1, chelating solubilising, calcium tolerance is good, and scale inhibition and dispersion is good, by calcium carbonate, calcium phosphate, calcium sulfate crystallite or mud
Sand is dispersed in water, and is not precipitated, and bactericidal is environmentally safe, corrosion inhibition rate 97-99.9%；2, it is applied to offshore oil field re-injection
Sewage and oil pipeline, prevent metal ion, especially barium, strontium ion from forming dirt, and scale inhibition performance 96-99%, pH value 7-9 have ring
Border friendly；3, using effect is good under the conditions of high rigidity, high-alkali, high ferro, high ph-values, high temperature and oil-containing, with conventional formulation medicament
Run concentration 300-500 × 10-6It compares, this product antisludging agent usage amount is few, operation concentration 5-25 × 10-6, save use cost；
4, effect is lasting, and 50-60 DEG C is placed 1-3 months, and scale inhibition effect 98-99%, temperature resistance and scale inhibition stability are good, complexing dispersion iron
Functionalized chemical stability is good, has fine dispersion effect to iron oxide, mud, and corrosion inhibition is good, of low cost, easy to operate, closes
It is generated at no waste mine in the process, three-waste free discharge, can produce extensively and constantly replaces current material.
Specific implementation mode
Embodiment 1:
2 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid is weighed according to parts by weight proportioning；8 parts of hydrolysis of polymaleic anhydride；4 parts of sodium carbonate；Citric acid
6 parts of sodium；100 parts of water；6 parts of polyvinyl alcohol；5 parts of kayexalate；4 parts of solubilised sulphur black；Ethylenediamine tetramethylene phosphine
2 parts of acid；Hydroxypropyl acrylate is 17 parts；1 part of sodium hydroxide；3 parts of acetoxime；8 parts of isopropanol；Diethylene triamine pentamethylene phosphonic
2 parts；6 parts of hydroxy ethylene diphosphonic acid.
Second two is added in the four-hole boiling flask equipped with electric mixer, constant pressure funnel, thermometer and reflux condensing tube
Amine tetramethylene phosphonic acid and water are heated to 65-85 DEG C, stir 15-25min, and 1-hydroxy ethylidene-1,1-diphosphonic acid and sodium citrate is added dropwise, and rise
Temperature reacts 3-5h to 85-105 DEG C.
Ethylenediamine, solubilised sulphur black, sodium carbonate and hydroxypropyl acrylate is added, is warming up to 110-120 DEG C, reacts 2-
6h。
It is warming up to 120-140 DEG C, surplus stock is added, stirs 50-90min, discharges after being cooled to room temperature and is hindered up to inhibition
Dirty agent.
Chelating solubilising, calcium tolerance is good to be dispersed in water calcium carbonate, calcium phosphate, calcium sulfate crystallite or silt, does not precipitate,
Bactericidal, environmentally safe, corrosion inhibition rate 97-99.9%；Prevent metal ion, especially barium, strontium ion from forming dirt, scale inhibition
Rate 96-99%, pH value 7-9, using effect is good under the conditions of high rigidity, high-alkali, high ferro, high ph-values, high temperature and oil-containing, runs concentration
5-25×10-6, 50-60 DEG C is placed 1-3 months, and scale inhibition effect 98-99%, complexing dispersion iron functionalized chemical stability is good, to oxygen
Change iron, mud has fine dispersion effect.
Embodiment 2:
6 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid is weighed according to parts by weight proportioning；12 parts of hydrolysis of polymaleic anhydride；8 parts of sodium carbonate；Citric acid
10 parts of sodium；100 parts of water；10 parts of polyvinyl alcohol；9 parts of kayexalate；8 parts of solubilised sulphur black；Ethylenediamine tetramethylene
6 parts of phosphonic acids；Hydroxypropyl acrylate is 19 parts；10 parts of sodium hydroxide；5 parts of acetoxime；12 parts of isopropanol；Five methene of diethylenetriamine
6 parts of phosphonic acids；8 parts of hydroxy ethylene diphosphonic acid.
Second two is added in the four-hole boiling flask equipped with electric mixer, constant pressure funnel, thermometer and reflux condensing tube
Amine tetramethylene phosphonic acid and water are heated to 65-85 DEG C, stir 15-25min, and 1-hydroxy ethylidene-1,1-diphosphonic acid and sodium citrate is added dropwise, and rise
Temperature reacts 3-5h to 85-105 DEG C.
Ethylenediamine, solubilised sulphur black, sodium carbonate and hydroxypropyl acrylate is added, is warming up to 110-120 DEG C, reacts 2-
6h。
Chelating solubilising, calcium tolerance is good, and scale inhibition and dispersion is good, and calcium carbonate, calcium phosphate, calcium sulfate crystallite or silt are disperseed
Yu Shuizhong is not precipitated, and bactericidal is environmentally safe, corrosion inhibition rate 97-99.9%；Applied to offshore oil field return water and defeated
Oil-piping, prevents metal ion, especially barium, strontium ion from forming dirt, and scale inhibition performance 96-99%, pH value 7-9 have environmental-friendly
Property；Using effect is good under the conditions of high rigidity, high-alkali, high ferro, high ph-values, high temperature and oil-containing, and concentration is run with conventional formulation medicament
300-500×10-6It compares, this product antisludging agent usage amount is few, operation concentration 5-25 × 10-6, save use cost；Effect is lasting,
50-60 DEG C is placed 1-3 months, and scale inhibition effect 98-99%, temperature resistance and scale inhibition stability are good, and complexing dispersion iron functionalized chemical is stablized
Property it is good, have fine dispersion effect, corrosion inhibition good in iron oxide, mud, it is of low cost, it is easy to operate, without useless in building-up process
Material generates, three-waste free discharge, can produce extensively and constantly replace current material.
Embodiment 3:
4 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid is weighed according to parts by weight proportioning；10 parts of hydrolysis of polymaleic anhydride；6 parts of sodium carbonate；Citric acid
8 parts of sodium；100 parts of water；8 parts of polyvinyl alcohol；7 parts of kayexalate；6 parts of solubilised sulphur black；Ethylenediamine tetramethylene phosphine
4 parts of acid；Hydroxypropyl acrylate is 18 parts；5 parts of sodium hydroxide；4 parts of acetoxime；10 parts of isopropanol；Five methene phosphine of diethylenetriamine
4 parts of acid；7 parts of hydroxy ethylene diphosphonic acid.
Second two is added in the four-hole boiling flask equipped with electric mixer, constant pressure funnel, thermometer and reflux condensing tube
Amine tetramethylene phosphonic acid and water are heated to 65-85 DEG C, stir 15-25min, and 1-hydroxy ethylidene-1,1-diphosphonic acid and sodium citrate is added dropwise, and rise
Temperature reacts 3-5h to 85-105 DEG C.
Ethylenediamine, solubilised sulphur black, sodium carbonate and hydroxypropyl acrylate is added, is warming up to 110-120 DEG C, reacts 2-
6h。
Chelating solubilising, calcium tolerance is good, and scale inhibition and dispersion is good, and calcium carbonate, calcium phosphate, calcium sulfate crystallite or silt are disperseed
Yu Shuizhong is not precipitated, and bactericidal is environmentally safe, corrosion inhibition rate 99.9%；Applied to offshore oil field return water and oil transportation
Pipeline, prevents metal ion, especially barium, strontium ion from forming dirt, scale inhibition performance 99%, and pH value 8 has environment friendly；It is high hard
Using effect is good under the conditions of degree, high-alkali, high ferro, high ph-values, high temperature and oil-containing, and concentration 500 × 10 is run with conventional formulation medicament-6
It compares, this product antisludging agent usage amount is few, runs concentration 5 × 10-6, save use cost；Effect is lasting, and 60 DEG C are placed 3 months,
Scale inhibition effect 99%, temperature resistance and scale inhibition stability are good, and complexing dispersion iron functionalized chemical stability is good, has to iron oxide, mud good
Good peptizaiton, corrosion inhibition is good, of low cost, easy to operate, and no waste mine generates in building-up process, and three-waste free discharge can be with
It produces extensively and constantly replaces current material.
Composition all components in above example can be commercially available.
The above embodiments are merely intended to illustrate the present invention rather than to limit it, therefore with the present invention's
Any change in the comparable meaning and scope of claims, should be construed as being included in the scope of the claims.
Claims (5)
1. a kind of corrosion inhibiting and descaling agent, it is characterised in that the raw material of the corrosion inhibiting and descaling agent matches as follows in parts by weight：Hydroxyl second
Pitch 2-6 parts of di 2 ethylhexyl phosphonic acid；8-12 parts of hydrolysis of polymaleic anhydride；4-8 parts of sodium carbonate；6-10 parts of sodium citrate；100 parts of water；Polyethylene
6-10 parts of alcohol；5-9 parts of kayexalate；4-8 parts of solubilised sulphur black；2-6 parts of ethylenediamine tetramethylene phosphonic acid；Acrylic acid
Hydroxypropyl acrylate is 17-19 parts；1-10 parts of sodium hydroxide；3-5 parts of acetoxime；8-12 parts of isopropanol；Diethylene triamine pentamethylene phosphonic
2-6 parts；6-8 parts of hydroxy ethylene diphosphonic acid.
2. a kind of corrosion inhibiting and descaling agent according to claim 1, it is characterised in that the corrosion inhibiting and descaling agent raw material is by weight
Number proportioning is as follows：2 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid；8 parts of hydrolysis of polymaleic anhydride；4 parts of sodium carbonate；6 parts of sodium citrate；100 parts of water；
6 parts of polyvinyl alcohol；5 parts of kayexalate；4 parts of solubilised sulphur black；2 parts of ethylenediamine tetramethylene phosphonic acid；Acrylic acid hydroxyl
Propyl ester is 17 parts；1 part of sodium hydroxide；3 parts of acetoxime；8 parts of isopropanol；2 parts of diethylene triamine pentamethylene phosphonic；Hydroxy ethylene
6 parts of di 2 ethylhexyl phosphonic acid.
3. a kind of corrosion inhibiting and descaling agent according to claim 1, it is characterised in that the corrosion inhibiting and descaling agent raw material is by weight
Number proportioning is as follows：6 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid；12 parts of hydrolysis of polymaleic anhydride；8 parts of sodium carbonate；10 parts of sodium citrate；Water 100
Part；10 parts of polyvinyl alcohol；9 parts of kayexalate；8 parts of solubilised sulphur black；6 parts of ethylenediamine tetramethylene phosphonic acid；Propylene
Sour hydroxypropyl acrylate is 19 parts；10 parts of sodium hydroxide；5 parts of acetoxime；12 parts of isopropanol；6 parts of diethylene triamine pentamethylene phosphonic；Hydroxyl
8 parts of ethylidene diphosphonic acid.
4. a kind of corrosion inhibiting and descaling agent according to claim 1, it is characterised in that the corrosion inhibiting and descaling agent raw material is by weight
Number proportioning is as follows：4 parts of 1-hydroxy ethylidene-1,1-diphosphonic acid；10 parts of hydrolysis of polymaleic anhydride；6 parts of sodium carbonate；8 parts of sodium citrate；Water 100
Part；8 parts of polyvinyl alcohol；7 parts of kayexalate；6 parts of solubilised sulphur black；4 parts of ethylenediamine tetramethylene phosphonic acid；Acrylic acid
Hydroxypropyl acrylate is 18 parts；5 parts of sodium hydroxide；4 parts of acetoxime；10 parts of isopropanol；4 parts of diethylene triamine pentamethylene phosphonic；Hydroxyl is sub-
7 parts of ethyl di 2 ethylhexyl phosphonic acid.
5. the preparation method of corrosion inhibiting and descaling agent described in a kind of claim 1, which is characterized in that include the following steps：
The first step：According to parts by weight proportioning weigh 1-hydroxy ethylidene-1,1-diphosphonic acid, hydrolysis of polymaleic anhydride, sodium carbonate, sodium citrate,
Water, polyvinyl alcohol, kayexalate, solubilised sulphur black, ethylenediamine tetramethylene phosphonic acid, hydroxypropyl acrylate, acetone
Oxime, isopropanol, diethylene triamine pentamethylene phosphonic, hydroxy ethylene diphosphonic acid and sodium hydroxide；
Second step：Second is added in the four-hole boiling flask equipped with electric mixer, constant pressure funnel, thermometer and reflux condensing tube
Diamines tetramethylene phosphonic acid and water are heated to 65-85 DEG C, stir 15-25min, and 1-hydroxy ethylidene-1,1-diphosphonic acid and sodium citrate is added dropwise,
It is warming up to 85-105 DEG C, reacts 3-5h；
Third walks：Ethylenediamine, solubilised sulphur black, sodium carbonate and hydroxypropyl acrylate is added, is warming up to 110-120 DEG C, reaction
2-6h；
4th step：It is warming up to 120-140 DEG C, surplus stock is added, stirs 50-90min, is discharged after being cooled to room temperature up to inhibition
Antisludging agent.
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| Application Number | Priority Date | Filing Date | Title |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110451665A (en) * | 2019-08-21 | 2019-11-15 | 詹蕴 | A kind of preparation method of efficient sterilizing corrosion inhibiting and descaling agent |
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| CN104803491A (en) * | 2014-01-23 | 2015-07-29 | 王金山 | Black corrosion-inhibition scale inhibitor |
| CN105036362A (en) * | 2015-06-30 | 2015-11-11 | 苏州佑君环境科技有限公司 | Low-phosphorous and environmental friendly antisludging agent and preparation method of antisludging agent |
| CN105036358A (en) * | 2015-06-30 | 2015-11-11 | 苏州佑君环境科技有限公司 | Scale inhibitor for ash flushing water pipe and preparation method of scale inhibitor |
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2018
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|---|---|---|---|---|
| CN101182078A (en) * | 2007-11-12 | 2008-05-21 | 中国海洋石油总公司 | Corrosion inhibition anti-sludging agent for boiler heating network |
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| CN105036362A (en) * | 2015-06-30 | 2015-11-11 | 苏州佑君环境科技有限公司 | Low-phosphorous and environmental friendly antisludging agent and preparation method of antisludging agent |
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Application publication date: 20181109 |