CN103663744A - Composite corrosion and scale inhibitor for circulating cooling water - Google Patents
Composite corrosion and scale inhibitor for circulating cooling water Download PDFInfo
- Publication number
- CN103663744A CN103663744A CN201310664935.5A CN201310664935A CN103663744A CN 103663744 A CN103663744 A CN 103663744A CN 201310664935 A CN201310664935 A CN 201310664935A CN 103663744 A CN103663744 A CN 103663744A
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- CN
- China
- Prior art keywords
- parts
- cooling water
- corrosion
- composite slow
- scale resistor
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- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
- C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F14/00—Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes
- C23F14/02—Inhibiting incrustation in apparatus for heating liquids for physical or chemical purposes by chemical means
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention belongs to the technical field of water treatment, and particularly relates to a composite corrosion and scale inhibitor for circulating cooling water. The composite corrosion and scale inhibitor for circulating cooling water is prepared from the following components in parts by weight: sodium molybdate, sodium succinate, polymaliec acid, benzotriazole and hydroxyethylidenediphosphonic acid. The composite corrosion and scale inhibitor is convenient to use, and has the advantages of small toxicity, no smell and favorable dispersibility.
Description
Technical field
The invention belongs to the technical field of water treatment, be specifically related to a kind of composite slow-corrosion scale resistor for recirculated cooling water.
Background technology
Recirculated cooling water plays the important and pivotal role in cooling system, but recirculated cooling water intensity used is high, basicity is large, have serious scale feature, under the various occasions of water temperature higher than envrionment temperature, the fouling meeting of the inorganic salt such as calcium carbonate brings serious consequence.While being used for industrial cooling circulating water system using it as heat-eliminating medium, can cause water quality deterioration, the problems such as corrosion and scaling occur, cause heat exchanger and line clogging or leakage, have a strong impact on production equipment and normally move.Along with the socioeconomic progress developing rapidly with technology, water technology comes into one's own day by day, by using effectively protection against corrosion and prevent fouling of water treatment agent, thus the utilization ratio of raising equipment and water and reach the object of saving water source and the energy.At present increasingly strict to the water treatment standard of corrosion-mitigation scale-inhibition, the feature of environmental protection of additive has also been proposed to high requirement simultaneously.
Summary of the invention
The object of the invention is to for the defect of above-mentioned existence and a kind of composite slow-corrosion scale resistor for recirculated cooling water is provided, this composite slow-corrosion scale resistor is easy to use, and toxicity is little, and tasteless dispersing property is good.
Technical scheme of the present invention is: a kind of composite slow-corrosion scale resistor for recirculated cooling water, is comprised of the component of following weight part:
5～10 parts of Sodium orthomolybdates
2～5 parts of Soduxins
7～13 parts of polymaleic aciies
1～1.5 part of benzotriazole
1～3 part of hydroxy ethylene diphosphonic acid.
The described composite slow-corrosion scale resistor for recirculated cooling water, is comprised of the component of following weight part:
5.7 parts of Sodium orthomolybdates
2.4 parts of Soduxins
7.3 parts of polymaleic aciies
1.2 parts of benzotriazoles
1.6 parts of hydroxy ethylene diphosphonic acids.
The described composite slow-corrosion scale resistor for recirculated cooling water, is comprised of the component of following weight part:
6.4 parts of Sodium orthomolybdates
3.8 parts of Soduxins
8.4 parts of polymaleic aciies
1.32 parts of benzotriazoles
2.26 parts of hydroxy ethylene diphosphonic acids.
The described composite slow-corrosion scale resistor for recirculated cooling water, is comprised of the component of following weight part:
8.35 parts of Sodium orthomolybdates
4.1 parts of Soduxins
11.5 parts of polymaleic aciies
1.18 parts of benzotriazoles
1.9 parts of hydroxy ethylene diphosphonic acids.
The described composite slow-corrosion scale resistor for recirculated cooling water, is comprised of the component of following weight part:
9.62 parts of Sodium orthomolybdates
4.7 parts of Soduxins
12.3 parts of polymaleic aciies
1.46 parts of benzotriazoles
2.78 parts of hydroxy ethylene diphosphonic acids.
Beneficial effect of the present invention is: the component toxicity of the composite slow-corrosion scale resistor for recirculated cooling water of the present invention is little, little to environmental influence, there is good corrosion inhibition, prevent the corrosion of recirculated cooling water to metallic conduit, corrosion mitigating effect reaches 97%～99.3%, makes its corrosion rate be reduced to 0.0025～0.003mm/a; Also there is good scale inhibition effect simultaneously.
In sum, described composite slow-corrosion scale resistor is easy to use, and toxicity is little, and tasteless dispersing property is good.
Embodiment
Below by specific embodiment, the present invention will be described in detail.
Embodiment 1
For a composite slow-corrosion scale resistor for recirculated cooling water, by the component of following weight part, formed:
5 parts of Sodium orthomolybdates
2 parts of Soduxins
7 parts of polymaleic aciies
1 part of benzotriazole
1 part of hydroxy ethylene diphosphonic acid.
Described in employing embodiment 1, composite slow-corrosion scale resistor makes corrosion mitigating effect reach 97%, makes its corrosion rate be reduced to 0.0025mm/a.
Embodiment 2
The described composite slow-corrosion scale resistor for recirculated cooling water, is comprised of the component of following weight part:
5.7 parts of Sodium orthomolybdates
2.4 parts of Soduxins
7.3 parts of polymaleic aciies
1.2 parts of benzotriazoles
1.6 parts of hydroxy ethylene diphosphonic acids.
Described in employing embodiment 2, composite slow-corrosion scale resistor makes corrosion mitigating effect reach 97.8%, makes its corrosion rate be reduced to 0.0029mm/a.
Embodiment 3
The described composite slow-corrosion scale resistor for recirculated cooling water, is comprised of the component of following weight part:
6.4 parts of Sodium orthomolybdates
3.8 parts of Soduxins
8.4 parts of polymaleic aciies
1.32 parts of benzotriazoles
2.26 parts of hydroxy ethylene diphosphonic acids.
Described in employing embodiment 3, composite slow-corrosion scale resistor makes corrosion mitigating effect reach 98.3%, makes its corrosion rate be reduced to 0.0027mm/a.
Embodiment 4
The described composite slow-corrosion scale resistor for recirculated cooling water, is comprised of the component of following weight part:
8.35 parts of Sodium orthomolybdates
4.1 parts of Soduxins
11.5 parts of polymaleic aciies
1.18 parts of benzotriazoles
1.9 parts of hydroxy ethylene diphosphonic acids.
Described in employing embodiment 4, composite slow-corrosion scale resistor makes corrosion mitigating effect reach 98.9%, makes its corrosion rate be reduced to 0.0026mm/a.
Embodiment 5
The described composite slow-corrosion scale resistor for recirculated cooling water, is comprised of the component of following weight part:
9.62 parts of Sodium orthomolybdates
4.7 parts of Soduxins
12.3 parts of polymaleic aciies
1.46 parts of benzotriazoles
2.78 parts of hydroxy ethylene diphosphonic acids.
Described in employing embodiment 5, composite slow-corrosion scale resistor makes corrosion mitigating effect reach 99.1%, makes its corrosion rate be reduced to 0.00258mm/a.
Embodiment 6
For a composite slow-corrosion scale resistor for recirculated cooling water, by the component of following weight part, formed:
10 parts of Sodium orthomolybdates
5 parts of Soduxins
13 parts of polymaleic aciies
1.5 parts of benzotriazoles
3 parts of hydroxy ethylene diphosphonic acids.
Described in employing embodiment 6, composite slow-corrosion scale resistor makes corrosion mitigating effect reach 99.3%, makes its corrosion rate be reduced to 0.003mm/a.
Claims (5)
1. for a composite slow-corrosion scale resistor for recirculated cooling water, it is characterized in that, by the component of following weight part, formed:
5～10 parts of Sodium orthomolybdates
2～5 parts of Soduxins
7～13 parts of polymaleic aciies
1～1.5 part of benzotriazole
1～3 part of hydroxy ethylene diphosphonic acid.
2. according to claim 1 for the composite slow-corrosion scale resistor of recirculated cooling water, it is characterized in that, by the component of following weight part, formed:
5.7 parts of Sodium orthomolybdates
2.4 parts of Soduxins
7.3 parts of polymaleic aciies
1.2 parts of benzotriazoles
1.6 parts of hydroxy ethylene diphosphonic acids.
3. according to claim 1 for the composite slow-corrosion scale resistor of recirculated cooling water, it is characterized in that, by the component of following weight part, formed:
6.4 parts of Sodium orthomolybdates
3.8 parts of Soduxins
8.4 parts of polymaleic aciies
1.32 parts of benzotriazoles
2.26 parts of hydroxy ethylene diphosphonic acids.
4. according to claim 1 for the composite slow-corrosion scale resistor of recirculated cooling water, it is characterized in that, by the component of following weight part, formed:
8.35 parts of Sodium orthomolybdates
4.1 parts of Soduxins
11.5 parts of polymaleic aciies
1.18 parts of benzotriazoles
1.9 parts of hydroxy ethylene diphosphonic acids.
5. according to claim 1 for the composite slow-corrosion scale resistor of recirculated cooling water, it is characterized in that, by the component of following weight part, formed:
9.62 parts of Sodium orthomolybdates
4.7 parts of Soduxins
12.3 parts of polymaleic aciies
1.46 parts of benzotriazoles
2.78 parts of hydroxy ethylene diphosphonic acids.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310664935.5A CN103663744A (en) | 2013-12-09 | 2013-12-09 | Composite corrosion and scale inhibitor for circulating cooling water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310664935.5A CN103663744A (en) | 2013-12-09 | 2013-12-09 | Composite corrosion and scale inhibitor for circulating cooling water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103663744A true CN103663744A (en) | 2014-03-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310664935.5A Pending CN103663744A (en) | 2013-12-09 | 2013-12-09 | Composite corrosion and scale inhibitor for circulating cooling water |
Country Status (1)
| Country | Link |
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| CN (1) | CN103663744A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310607A (en) * | 2014-10-22 | 2015-01-28 | 山东华亚环保科技有限公司 | Compound corrosion inhibitor used for boiler water |
| CN109264877A (en) * | 2018-11-19 | 2019-01-25 | 山东天庆科技发展有限公司 | A kind of composite highly effective non-phosphorus scale and corrosion inhibitor and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038312A (en) * | 1988-06-03 | 1989-12-27 | 山东省海洋仪器仪表研究所 | Composite molybdate as high-efficiency inhibitor of corrosion and dirty |
| KR20060123885A (en) * | 2005-05-30 | 2006-12-05 | 에스케이케미칼주식회사 | Method of water treatment for preventing corrosion and scale formation of metal |
| CN102730848A (en) * | 2011-04-02 | 2012-10-17 | 中国石油化工股份有限公司 | Composite anti-incrustation corrosion inhibiter and its application in water treatment |
| 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 |
| CN103319010A (en) * | 2012-03-19 | 2013-09-25 | 常州市排水管理处 | Scale and corrosion inhibitor |
-
2013
- 2013-12-09 CN CN201310664935.5A patent/CN103663744A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1038312A (en) * | 1988-06-03 | 1989-12-27 | 山东省海洋仪器仪表研究所 | Composite molybdate as high-efficiency inhibitor of corrosion and dirty |
| KR20060123885A (en) * | 2005-05-30 | 2006-12-05 | 에스케이케미칼주식회사 | Method of water treatment for preventing corrosion and scale formation of metal |
| CN102730848A (en) * | 2011-04-02 | 2012-10-17 | 中国石油化工股份有限公司 | Composite anti-incrustation corrosion inhibiter and its application in water treatment |
| CN103319010A (en) * | 2012-03-19 | 2013-09-25 | 常州市排水管理处 | 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310607A (en) * | 2014-10-22 | 2015-01-28 | 山东华亚环保科技有限公司 | Compound corrosion inhibitor used for boiler water |
| CN109264877A (en) * | 2018-11-19 | 2019-01-25 | 山东天庆科技发展有限公司 | A kind of composite highly effective non-phosphorus scale and corrosion inhibitor and preparation method thereof |
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| PB01 | Publication | ||
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Application publication date: 20140326 |