CN101746899A - Novel corrosion inhibition scale inhibitor - Google Patents
Novel corrosion inhibition scale inhibitor Download PDFInfo
- Publication number
- CN101746899A CN101746899A CN200810153836A CN200810153836A CN101746899A CN 101746899 A CN101746899 A CN 101746899A CN 200810153836 A CN200810153836 A CN 200810153836A CN 200810153836 A CN200810153836 A CN 200810153836A CN 101746899 A CN101746899 A CN 101746899A
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- Prior art keywords
- corrosion inhibition
- scale inhibitor
- novel corrosion
- inhibition scale
- equipment
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- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses a novel corrosion inhibition scale inhibitor, which comprises the following constitutions by weight: 1 to 16 polyepoxy sodium succinate, 1 to 18 polyaspartic sodium, 1 to 13 hydrolytic maleic anhydride, 1 to 25 gluconic acid sodium salt, 1 to 18 acrylic acid - acrylate - sulfonate copolymer, 1 to 8 zinc sulfate, 1 to 12 benzotriazol, and 0.5 to 2 NaOH. The novel corrosion inhibition scale inhibitor has the advantages that: the technology for removing SO2 by Ca(OH)2 can be normally run in a middle-sized and small-sized boiler houses, the repairing rate of the equipment is low, and the desulphurization cost can be reduced by 50 percent; the equipment of the copper or the cooper alloy structure can be protected; and a good corrosion inhibition scale inhibition effect can be realized in the environment that the temperature is less than 150 DEG C, and the PH is less than 12.
Description
Technical field
What the present invention relates to is Scale inhibitors in the water circulation system, particularly be a kind of novel corrosion inhibition scale inhibitor
Background technology
In the prior art, domestic medium small boiler room is to the desulfurization treatment process of recirculated water, and what great majority adopted is the NaOH absorption process, promptly adopts NaOH and SO
2Produce Na
2SO
3The back is discharging directly.But consume a large amount of expensive caustic soda although above-mentioned treatment process is easy to operate, its desulfurization unit cost approximately is Ca (OH)
2Remove SO
2More than one times.However, seldom there is use Ca (OH) in domestic medium small boiler room
2Remove SO
2, its reason is with Ca (OH)
2Remove SO
2To in desulfurated circulating water, add Ca (OH) in a large number
2Make Ca
2+Often be in in desulfurization with recirculated water fullly close, hypersaturated state, CaSO
3With CaSO
4Crystallization might take place at any place of the recycle system.CaSO
3With CaSO
4Fouling will stop up shower nozzle, pipeline, equipment can't be moved.Sweetening process will be carried out in the environment of PH＞10 simultaneously, and high pH value will cause the defective of corrosion damage equipment to iron and steel, copper alloy.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned technology, provide a kind of and can effectively control and destroy CaSO
3With CaSO
4Crystallization increases, and the control incrustation scale reduces the corrosion rate of incrustation scale to equipment at the surperficial up one-tenth of equipment or pipeline, prolongs a kind of novel corrosion inhibition scale inhibitor of service life of equipment.
The technical scheme that solves the problems of the technologies described above is: a kind of novel corrosion inhibition scale inhibitor, and described novel corrosion inhibition scale inhibitor is made up of following weight proportion:
Polyepoxy sodium succinate: 1-16; Poly (sodium aspartate): 1-18;
Hydrolysis maleic anhydride: 1-13; Sunmorl N 60S: 1-25;
Vinylformic acid-acrylate-sulfonate terpolymer: 1-18;
Zinc sulfate: 1-8; Benzotriazole: 1-12;
NaOH： 0.5-2。
The invention has the beneficial effects as follows: the present invention is applicable to and contains high Ca
2+, SO4
2-, SO3
2-, OH
-Etc. various ions and corresponding saline crystallization particulate mixed cycle water system thereof; Be applicable to the inhibition in the heat exchange recirculated water that copper equipment or copper alloy control equipment are arranged in high-temperature, the high pH value circulating water system, advantage of the present invention is:
1.. by the use of the present invention in medium small boiler system flue-gas desulfurizing engineering, make Ca (OH)
2Remove SO
2Technology can normally move in the medium small boiler room, the maintenance of equipment rate reduces, and makes the desulfurization expense reduce by 50%.
2.. this corrosion inhibiting and descaling agent can play effective protection to copper or copper alloy structure simultaneously when copper or copper alloy structure were arranged in equipment.
3.. the present invention can have good anticorrosion-antiscaling effect under t＜150 ℃, PH＜12 environment.
Embodiment
Below embodiments of the invention are described in further detail.
The invention provides a kind of novel corrosion inhibition scale inhibitor, it is characterized in that, described novel corrosion inhibition scale inhibitor is made up of following weight proportion:
Polyepoxy sodium succinate: 1-16; Poly (sodium aspartate): 1-18;
Hydrolysis maleic anhydride: 1-13; Sunmorl N 60S: 1-25;
Vinylformic acid-acrylate-sulfonate terpolymer: 1-18;
Zinc sulfate: 1-8; Benzotriazole: 1-12;
NaOH： 0.5-2。
Polyepoxy sodium succinate among the present invention (PESA): be that a kind of without phosphorus, polynary anti-incrustation corrosion inhibitor of " green " environment-friendly type of non-nitrogen, calcium sulfate, barium sulfate, Calcium Fluoride (Fluorspan) crane silicon dirt have good scale inhibition and dispersion performance.The PESA biodegradability is good, has wide range of applications, and is particularly useful for the cooling water system under high-alkali, high hard, the high PH high temperature value condition.
Poly (sodium aspartate) among the present invention (PASP): being water-soluble polymers, is a kind of novel green water conditioner, has the characteristic of without phosphorus, nontoxic, nuisanceless and fully biodegradable.To Ca
2+, Mg
2+Ion has extremely strong sequestering power, Excellence in Performance in high rigidity, high basicity, high pH value, high concentration multiple system, have inhibition and scale inhibition double effects, the dirty factors of one-tenth such as lime carbonate, calcium sulfate, barium sulfate, calcium phosphate there is splendid scale inhibition effect, can reaches 100% the scale inhibition performance of lime carbonate.PASP has dissemination simultaneously and can effectively prevent the corrosion of hardware.
Hydrolysis maleic anhydride (HPMA) among the present invention: be a kind of lower molecular weight polyelectrolyte, general relative molecular weight is 400～800, and is nontoxic, soluble in water, chemical stability and thermostability height, and decomposition temperature is more than 330 ℃.Tangible molten limit effect * is arranged under high temperature (＜350 ℃) and high PH.The HPMA scale inhibition time can reach 100h.HPMA has certain corrosion inhibition in addition, with the composite better effects if of zinc salt.
* described molten limit effect claims the threshold value effect again, refers to utilization inhibitor seldom and prevent the ability that a large amount of depositions is separated out from solution.Scale inhibition performance is lower when the concentration of inhibitor is very low, and when the concentration of inhibitor reached a threshold concentration, the scale inhibition performance generation hop of this inhibitor reached a high level.The concentration that continue to improve inhibitor more then scale inhibition performance tends to be steady.
Described Sunmorl N 60S: the inhibition of a kind of multi-hydroxy carboxy acid's type that Sunmorl N 60S is to use early, is much accounted of again in recent years, Scale inhibitors be because of containing a plurality of hydroxyls in the molecule, in the aqueous solution to Fe
3+, Cu
2+, Ca
2+Plasma has and good complex ability and the many salts of these ionic are also had good deactivation.Therefore, in recirculated water, be used as scale inhibition, inhibiter, simultaneously also as dispersion agent.
Common Sunmorl N 60S and the composite use of other sustained release dosages.Present splendid synergistic effect between them.
Described vinylformic acid-acrylate-sulfonate terpolymer (TH-613): being terpolymer, is a kind of novel polynary polyelectrolyte dirt dispersion agent that contains sulfonate.Owing on the molecular chain of multipolymer, contain strong acid, weak acid and non-ionic group simultaneously, he is applicable to that high temperature, high pH value, height use firmly with under the high-alkali condition, to the deposition of the ferric oxide in the water, calcium phosphate, zinc phosphate and lime carbonate, has good restraining effect.The TH-613 terpolymer is that higher calcium tolerance is arranged, and is good with water conditioner compatibilities commonly used such as zinc salts, is the stablizer of zine ion in water simultaneously.
Described zinc sulfate: zinc sulfate can promptly be set up provide protection to metal in recirculated water.
The advantage of sulfuric acid zinc salt: 1. can generate protective membrane rapidly; 2. cost is low; 3. unite effective when using with other inhibiter.
The shortcoming of sulfuric acid zinc salt: in PH＞8.0 o'clock, if use the sulfuric acid zinc salt separately, then zine ion is easily separated out from water so that is reduced or lose corrosion inhibition, for this reason, use medicament---the stablizer of zine ion that zine ion can be stabilized in the water simultaneously.Vinylformic acid-acrylate in this prescription-sulfonate terpolymer promptly is a kind of stablizer of splendid zine ion.
Described benzotriazole (BTA): be a kind of effective copper corrosion sustained release dosage.Can prevent that cupric ion from producing galvanic corrosion to steel, aluminium etc.Therefore, contain cupric ion, all should add this class sustained release dosage as having in copper material equipment or the water in the handled water system.It also can prevent the corrosion of sodium polyacrylate to copper in some prescription.
The inhibition mechanism of benzotriazole (BTA): the active copper atom of BTA and copper surface forms insoluble Cu-BTA protective membrane with the form of covalent linkage or coordinate bond on the surface of metallic copper, thereby has suppressed the corrosion of copper and alloy.
Described NaOH: reconcile the pH value of solution, make BTA be easier to be dissolved in the water.
The invention provides a kind of novel corrosion inhibition scale inhibitor, described novel corrosion inhibition scale inhibitor is made up of following weight proportion:
Polyepoxy sodium succinate: 1; Poly (sodium aspartate): 1;
Hydrolysis maleic anhydride: 1; Sunmorl N 60S: 1;
Vinylformic acid-acrylate-sulfonate terpolymer: 1;
Zinc sulfate: 1; Benzotriazole: 1;
NaOH： 0.5。
The invention provides a kind of novel corrosion inhibition scale inhibitor, described novel corrosion inhibition scale inhibitor is made up of following weight proportion:
Polyepoxy sodium succinate: 8.5; Poly (sodium aspartate): 9.5;
Hydrolysis maleic anhydride: 7; Sunmorl N 60S: 13;
Vinylformic acid-acrylate-sulfonate terpolymer: 9.5;
Zinc sulfate: 4.5; Benzotriazole: 6.5;
NaOH： 1.25。
The invention provides a kind of novel corrosion inhibition scale inhibitor, described novel corrosion inhibition scale inhibitor is made up of following weight proportion:
Polyepoxy sodium succinate: 16; Poly (sodium aspartate): 18;
Hydrolysis maleic anhydride: 13; Sunmorl N 60S: 25;
Vinylformic acid-acrylate-sulfonate terpolymer: 18;
Zinc sulfate: 8; Benzotriazole: 12;
NaOH： 2。
Below preparation of the present invention and using method are described:
When the medium small boiler room need be to the recirculated water desulfurization treatment process, with the various components among the present invention, put into reactor according to weight proportion and mix, more mixed the present invention is quantitatively added the desulfurization of medium small boiler room and get final product with in the recirculated water.
Claims (2)
1. a novel corrosion inhibition scale inhibitor is characterized in that, described novel corrosion inhibition scale inhibitor is made up of following weight proportion:
Polyepoxy sodium succinate: 1-16; Poly (sodium aspartate): 1-18;
Hydrolysis maleic anhydride: 1-13; Sunmorl N 60S: 1-25;
Vinylformic acid-acrylate-sulfonate terpolymer: 1-18;
Zinc sulfate: 1-8; Benzotriazole: 1-12;
NaOH：0.5-2。
2. according to a kind of novel corrosion inhibition scale inhibitor described in the claim 1, described novel corrosion inhibition scale inhibitor is made up of following weight proportion:
Polyepoxy sodium succinate: 8.5; Poly (sodium aspartate): 9.5;
Hydrolysis maleic anhydride: 7; Sunmorl N 60S: 13;
Vinylformic acid-acrylate-sulfonate terpolymer: 9.5;
Zinc sulfate: 4.5; Benzotriazole: 6.5;
NaOH：1.25。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810153836A CN101746899A (en) | 2008-12-09 | 2008-12-09 | Novel corrosion inhibition scale inhibitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810153836A CN101746899A (en) | 2008-12-09 | 2008-12-09 | Novel corrosion inhibition scale inhibitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101746899A true CN101746899A (en) | 2010-06-23 |
Family
ID=42474601
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810153836A Pending CN101746899A (en) | 2008-12-09 | 2008-12-09 | Novel corrosion inhibition scale inhibitor |
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|---|---|
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102010077A (en) * | 2010-12-29 | 2011-04-13 | 李秀宁 | Non-phosphate anti-incrustation corrosion inhibitor and preparation process thereof |
| CN102060391A (en) * | 2010-11-26 | 2011-05-18 | 河北省科学院能源研究所 | Phosphorus-free compound water treatment agent with excellent corrosion inhibition property and preparation method thereof |
| CN102145943A (en) * | 2010-09-15 | 2011-08-10 | 杭州英普水处理技术有限公司 | Distillation sea water desalinating scale inhibition and dispersion agent and preparation method thereof |
| CN102417242A (en) * | 2011-10-17 | 2012-04-18 | 南开大学 | Environmentally friendly composite corrosion and scale inhibitor for circulating cooling water |
| CN102583792A (en) * | 2012-04-06 | 2012-07-18 | 济南大学 | Method for preparing composite industrial circulating cooling water scale inhibitor |
| CN102718333A (en) * | 2012-07-11 | 2012-10-10 | 山东天庆科技发展有限公司 | Efficient low-phosphorus compound water treatment agent |
| CN102745824A (en) * | 2012-07-11 | 2012-10-24 | 成都润兴消毒药业有限公司 | Environment-friendly type water-processing corrosion and scale inhibitor and preparation method thereof |
| CN102807288A (en) * | 2012-07-13 | 2012-12-05 | 湖北海力化工科技有限公司 | Scale inhibitor for limestone wet-process desulphurization and preparation method thereof |
| CN103132080A (en) * | 2013-01-29 | 2013-06-05 | 厦门金越电器有限公司 | Copper oxidation discoloration resistant agent and preparation method thereof |
| CN103145257A (en) * | 2013-03-18 | 2013-06-12 | 滁州品创生物科技有限公司 | Water quality stabilizer |
| CN103556165A (en) * | 2013-10-25 | 2014-02-05 | 天津沃川水处理工程技术有限公司 | Heavy-duty detergent for inner wall of stainless steel sugar bowl, and preparation method thereof |
| CN103693765A (en) * | 2014-01-03 | 2014-04-02 | 广州市特种承压设备检测研究院 | Non-phosphorus corrosion and scale inhibitor for central air-conditioning circulating cooling water and preparation method thereof |
| CN105039996A (en) * | 2013-06-19 | 2015-11-11 | 陈民 | Corrosion inhibitor used for protecting brassware from corrosion |
| CN105621639A (en) * | 2014-11-07 | 2016-06-01 | 中国石油化工股份有限公司 | Scale-inhibiting corrosion inhibitor composition, scale-inhibiting corrosion inhibitor, and applications of scale-inhibiting corrosion inhibitor |
| CN105948281A (en) * | 2016-05-31 | 2016-09-21 | 常州姚氏同德化工有限公司 | Phosphorus-free corrosion and scale inhibitor and preparation method thereof |
| CN106277377A (en) * | 2016-08-29 | 2017-01-04 | 山东胜伟园林科技有限公司 | A kind of modified antisludging agent and preparation method thereof |
| CN108996714A (en) * | 2018-08-24 | 2018-12-14 | 广州科宝水处理科技有限公司 | A kind of recirculated cooling water phosphate-free corrosion inhibition antisludging agent |
| CN109680282A (en) * | 2018-12-14 | 2019-04-26 | 中国科学院上海应用物理研究所 | A method of inhibiting molten salt system galvanic corrosion |
| CN110526424A (en) * | 2019-09-10 | 2019-12-03 | 上海丰信环保科技有限公司 | A kind of non-phosphorus scale and corrosion inhibitor and preparation method thereof |
| CN111439852A (en) * | 2020-05-22 | 2020-07-24 | 德蓝水技术股份有限公司 | Zinc salt corrosion inhibitor and preparation method thereof |
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2008
- 2008-12-09 CN CN200810153836A patent/CN101746899A/en active Pending
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102145943A (en) * | 2010-09-15 | 2011-08-10 | 杭州英普水处理技术有限公司 | Distillation sea water desalinating scale inhibition and dispersion agent and preparation method thereof |
| CN102060391A (en) * | 2010-11-26 | 2011-05-18 | 河北省科学院能源研究所 | Phosphorus-free compound water treatment agent with excellent corrosion inhibition property and preparation method thereof |
| CN102010077A (en) * | 2010-12-29 | 2011-04-13 | 李秀宁 | Non-phosphate anti-incrustation corrosion inhibitor and preparation process thereof |
| CN102417242A (en) * | 2011-10-17 | 2012-04-18 | 南开大学 | Environmentally friendly composite corrosion and scale inhibitor for circulating cooling water |
| CN102583792A (en) * | 2012-04-06 | 2012-07-18 | 济南大学 | Method for preparing composite industrial circulating cooling water scale inhibitor |
| CN102718333A (en) * | 2012-07-11 | 2012-10-10 | 山东天庆科技发展有限公司 | Efficient low-phosphorus compound water treatment agent |
| CN102745824A (en) * | 2012-07-11 | 2012-10-24 | 成都润兴消毒药业有限公司 | Environment-friendly type water-processing corrosion and scale inhibitor and preparation method thereof |
| CN102807288A (en) * | 2012-07-13 | 2012-12-05 | 湖北海力化工科技有限公司 | Scale inhibitor for limestone wet-process desulphurization and preparation method thereof |
| CN103132080A (en) * | 2013-01-29 | 2013-06-05 | 厦门金越电器有限公司 | Copper oxidation discoloration resistant agent and preparation method thereof |
| CN103145257B (en) * | 2013-03-18 | 2014-06-04 | 滁州品创生物科技有限公司 | Water quality stabilizer |
| CN103145257A (en) * | 2013-03-18 | 2013-06-12 | 滁州品创生物科技有限公司 | Water quality stabilizer |
| CN105039996A (en) * | 2013-06-19 | 2015-11-11 | 陈民 | Corrosion inhibitor used for protecting brassware from corrosion |
| CN103556165A (en) * | 2013-10-25 | 2014-02-05 | 天津沃川水处理工程技术有限公司 | Heavy-duty detergent for inner wall of stainless steel sugar bowl, and preparation method thereof |
| CN103693765B (en) * | 2014-01-03 | 2014-12-24 | 广州市特种承压设备检测研究院 | Non-phosphorus corrosion and scale inhibitor for central air-conditioning circulating cooling water and preparation method thereof |
| CN103693765A (en) * | 2014-01-03 | 2014-04-02 | 广州市特种承压设备检测研究院 | Non-phosphorus corrosion and scale inhibitor for central air-conditioning circulating cooling water and preparation method thereof |
| CN105621639A (en) * | 2014-11-07 | 2016-06-01 | 中国石油化工股份有限公司 | Scale-inhibiting corrosion inhibitor composition, scale-inhibiting corrosion inhibitor, and applications of scale-inhibiting corrosion inhibitor |
| CN105621639B (en) * | 2014-11-07 | 2019-04-19 | 中国石油化工股份有限公司 | A kind of anti-incrustation corrosion inhibitor composition and anti-incrustation corrosion inhibitor and its application |
| CN105948281A (en) * | 2016-05-31 | 2016-09-21 | 常州姚氏同德化工有限公司 | Phosphorus-free corrosion and scale inhibitor and preparation method thereof |
| CN106277377A (en) * | 2016-08-29 | 2017-01-04 | 山东胜伟园林科技有限公司 | A kind of modified antisludging agent and preparation method thereof |
| CN108996714A (en) * | 2018-08-24 | 2018-12-14 | 广州科宝水处理科技有限公司 | A kind of recirculated cooling water phosphate-free corrosion inhibition antisludging agent |
| CN109680282A (en) * | 2018-12-14 | 2019-04-26 | 中国科学院上海应用物理研究所 | A method of inhibiting molten salt system galvanic corrosion |
| CN110526424A (en) * | 2019-09-10 | 2019-12-03 | 上海丰信环保科技有限公司 | A kind of non-phosphorus scale and corrosion inhibitor and preparation method thereof |
| CN111439852A (en) * | 2020-05-22 | 2020-07-24 | 德蓝水技术股份有限公司 | Zinc salt corrosion inhibitor and preparation method thereof |
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Open date: 20100623 |