CN102863090A - Corrosion and scale inhibitor for low-hardness water and preparation method thereof - Google Patents
Corrosion and scale inhibitor for low-hardness water and preparation method thereof Download PDFInfo
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- CN102863090A CN102863090A CN2011101898117A CN201110189811A CN102863090A CN 102863090 A CN102863090 A CN 102863090A CN 2011101898117 A CN2011101898117 A CN 2011101898117A CN 201110189811 A CN201110189811 A CN 201110189811A CN 102863090 A CN102863090 A CN 102863090A
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- mercaptobenzothiazole
- molybdate
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- zinc salt
- organophosphate
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Abstract
A corrosion and scale inhibitor for low-hardness water comprises the following components by weight: 25%-28% of molybdate, 10%-11.2% of 2-mercaptobenzothiazole, 37.5%-42% of organic phosphate, 1.75%-1.96% of zinc salt, 2%-2.24% of 0.01% lignin solution and 14.6%-23.75% of ionized water. The corrosion and scale inhibitor for low-hardness water is prepared by mixing molybdate, 2-mercaptobenzothiazole, the organic phosphate, zinc salt, the 0.01% lignin solution and the ionized water according to certain percentage, and molybdate has excellent anti-corrosive effect, so that corrosion of scales pasted on a system device to an inner wall of the device can be avoided, the service life of the device is prolonged, and the using cost is reduced. 2-mercaptobenzothiazole has good sterilization, disinfection and anti-corrosive effects, so that the scales can be effectively removed; and 2-mercaptobenzothiazole has good sterilization and disinfection effects, so that breeding of bacteria is avoided. Simultaneously, the organic phosphate serves as a cleaning agent softener, so that the cleaning efficiency is improved, and the cleaning and using cost is reduced.
Description
Technical field
The present invention relates to a kind of corrosion inhibiting and descaling agent, be specifically related to a kind of corrosion inhibiting and descaling agent for low-hardness water and preparation method thereof.
Background technology
Water hardness refers to be dissolved in the content of the salts substances in the water, be what of calcium salt and magnesium salts content, water hardness height does not cause direct harm to health, but can bring a lot of troubles to life, such as the detersive efficiency attenuating of scaling, soap and sanitising agent on the water appliance etc.
In the lower cooling water system of hardness ratio, for scavenge system inside owing to the inwall or other key position that contain the system device that calcium salt and magnesium salts cause in the water coolant adhere to a large amount of incrustation scales, generally adopt the high concentration phosphorus acid treatment that incrustation scale is cleaned, but because the high concentration phosphorus acid treatment contains more nutrient rich, anticorrosion-antiscaling effect is undesirable, cleaning efficiency is lower, and need adopt in large quantities high concentration phosphorus acid treatment when cleaning, and use cost is higher.
Therefore, a kind of anticorrosion-antiscaling effect is better, and usage quantity is less simultaneously, and lower-cost corrosion inhibiting and descaling agent is demanded urgently occurring.
Summary of the invention
Adopt the high concentration phosphorus acid treatment to carry out corrosion-mitigation scale-inhibition for solving in the existing cooling water system, usage quantity is large, cost is higher, cleaning efficiency is low, the problems such as anticorrosion-antiscaling effect is relatively poor the invention discloses a kind of corrosion inhibiting and descaling agent for low-hardness water and preparation method thereof, to reach the raising cleaning efficiency, reduce the usage quantity of medicament, reduce the purpose of use cost.
Technical scheme of the present invention is as follows:
A kind of corrosion inhibiting and descaling agent for low-hardness water, the component that comprises following weight percent, molybdate 25%-28%, 2-mercaptobenzothiazole 10%-11.2%, organophosphate 37.5%-42%, zinc salt 1.75%-1.96%, 0.01% lignin liquor 2%-2.24%, ionized water 14.6%-23.75%.
Preferably, the component that comprises following weight percent, molybdate 25.5%-27.5%, 2-mercaptobenzothiazole 10.2%-11%, organophosphate 38.25%-41.25%, zinc salt 1.78%-1.93%, 0.01% lignin liquor 2.04%-2.2%, ionized water 16.12%-22.23%.
Preferably, the component that comprises following weight percent, molybdate 26%-27%, 2-mercaptobenzothiazole 10.4%-10.8%, organophosphate 39%-40.5%, zinc salt 1.82%-1.9%, 0.01% lignin liquor 2.08%-2.16%, ionized water 17.64%-20.7%.
Preferably, comprise the component of following weight percent, molybdate 26.5%, 2-mercaptobenzothiazole 10.6%, organophosphate 39.75%, zinc salt 1.86%, 0.01% lignin liquor 2.12%, ionized water 19.17%.
Preferably, described molybdate, 2-mercaptobenzothiazole, organophosphate, zinc salt, 0.01% lignin liquor cooperate according to 1:0.4:1.5:0.07:0.08.
Preferably, described molybdate is potassium molybdate or Sodium orthomolybdate.
A kind of preparation method of the corrosion inhibiting and descaling agent for low-hardness water, concrete steps are as follows:
The first step: according to the proportioning of claim 1, will put together after molybdate, the zinc salt weighing, will put together after 2-mercaptobenzothiazole, the organophosphate weighing, will place separately after 0.01% the lignin liquor weighing;
Second step: will put into reactor after the ionized water weighing, the unlatching heating unit heats the ionized water of reactor inside, and the simultaneously stirring of opening device when the ionized water temperature arrives 27 ℃-30 ℃, keeps thermostatically heating;
The 3rd step: add 0.01% lignin liquor in the reactor, keep 27 ℃-30 ℃ of constant temperature, continue to stir 50-70 minute;
The 4th step: add respectively 27 ℃-30 ℃ of molybdates, zinc salt, maintenance constant temperature in the reactor and continue to stir 50-70 minute;
The 5th step: when stirring, reactor is proceeded heating, when reactor temperature rises to 32 ℃-34 ℃, keep thermostatically heating, and in reactor, add 2-mercaptobenzothiazole and organophosphate, keep 32 ℃-34 ℃ of constant temperature, and continue to stir 3.5-4.5 hour, form product.
Corrosion inhibiting and descaling agent for low-hardness water disclosed by the invention, by molybdate, 2-mercaptobenzothiazole, organophosphate, zinc salt, 0.01% lignin liquor, ionized water, mix according to certain percentage, molybdate has good anticorrosive effect, avoided adhering to incrustation scale on the system device to the corrosion of equipment inner wall, in the work-ing life of raising equipment, reduce use cost; 2-mercaptobenzothiazole has the anticorrosive effect of good sterilization and disinfection, incrustation scale is removed effectively, and played good disinfection effect, avoids growing of bacterium; Adopt simultaneously organophosphate as the clean-out system tenderizer, improve the cleaning efficiency of incrustation scale, reduce cleaning and use cost.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the preparation method's of a kind of corrosion inhibiting and descaling agent for low-hardness water disclosed by the invention process flow sheet.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The invention discloses a kind of corrosion inhibiting and descaling agent for low-hardness water and preparation method thereof, to reach the raising cleaning efficiency, reduce the usage quantity of medicament, reduce the purpose of use cost.
Molybdate, 2-mercaptobenzothiazole, organophosphate, zinc salt, 0.01% lignin liquor cooperate according to 1:0.4:1.5:0.07:0.08.
Embodiment 1
A kind of corrosion inhibiting and descaling agent for low-hardness water comprises the component of following weight percent, molybdate 25%, 2-mercaptobenzothiazole 10%, organophosphate 37.5%, zinc salt 1.75%, 0.01% lignin liquor 2%, ionized water 23.75%.Wherein molybdate can be potassium molybdate or Sodium orthomolybdate etc., does not specifically limit.
Molybdate has good anticorrosive effect, has avoided adhering to incrustation scale on the system device to the corrosion of equipment inner wall, improves the work-ing life of equipment, reduces use cost; 2-mercaptobenzothiazole has the anticorrosive effect of good sterilization and disinfection, incrustation scale is removed effectively, and played good disinfection effect, avoids growing of bacterium, and 2-mercaptobenzothiazole can effectively prevent the corrosion of Valve joint; Adopt simultaneously organophosphate as the clean-out system tenderizer, improve the cleaning efficiency of incrustation scale, reduce cleaning and use cost.
A kind of preparation method of the corrosion inhibiting and descaling agent for low-hardness water, concrete steps are as follows:
The first step: will put together after molybdate, the zinc salt weighing, will put together after 2-mercaptobenzothiazole, the organophosphate weighing, will place separately after 0.01% the lignin liquor weighing;
Second step: will put into reactor after the ionized water weighing, the unlatching heating unit heats the ionized water of reactor inside, and the simultaneously stirring of opening device when the ionized water temperature arrives 27 ℃-30 ℃, keeps thermostatically heating;
The 3rd step: add 0.01% lignin liquor in the reactor, keep 27 ℃-30 ℃ of constant temperature, continue to stir 50-70 minute;
The 4th step: add respectively 27 ℃-30 ℃ of molybdates, zinc salt, maintenance constant temperature in the reactor and continue to stir 50-70 minute;
The 5th step: when stirring, reactor is proceeded heating, when reactor temperature rises to 32 ℃-34 ℃, keep thermostatically heating, and in reactor, add 2-mercaptobenzothiazole and organophosphate, keep 32 ℃-34 ℃ of constant temperature, and continue to stir 3.5-4.5 hour.
Embodiment 2
All the other are identical with embodiment 1, and difference is that this medicament comprises the component of following weight percent, molybdate 28%, 2-mercaptobenzothiazole 11.2%, organophosphate 42%, zinc salt 1.96%, 0.01% lignin liquor 2.24%, ionized water 14.6%.
Embodiment 3
All the other are identical with embodiment 1, difference is, this medicament comprises the component of following weight percent, molybdate 25.5%, 2-mercaptobenzothiazole 10.2%, organophosphate 38.25%, zinc salt 1.78%, 0.01% lignin liquor 2.04%, ionized water 22.23%.
Embodiment 4
All the other are identical with embodiment 1, and difference is that this medicament comprises the component of following weight percent, molybdate 27.5%, 2-mercaptobenzothiazole 11%, organophosphate 41.25%, zinc salt 1.93%, 0.01% lignin liquor 2.2%, ionized water 16.12%.
Embodiment 5
All the other are identical with embodiment 1, and difference is that this medicament comprises the component of following weight percent, molybdate 26%, 2-mercaptobenzothiazole 10.4%, organophosphate 39%, zinc salt 1.82%, 0.01% lignin liquor 2.08%, ionized water 20.7%.
Embodiment 6
All the other are identical with embodiment 1, and difference is that this medicament comprises the component of following weight percent, molybdate 27%, 2-mercaptobenzothiazole 10.8%, organophosphate 40.5%, zinc salt 1.9%, 0.01% lignin liquor 2.16%, ionized water 17.64%.
Embodiment 7
All the other are identical with embodiment 1, difference is, this medicament comprises the component of following weight percent, molybdate 26.5%, 2-mercaptobenzothiazole 10.6%, organophosphate 39.75%, zinc salt 1.86%, 0.01% lignin liquor 2.12%, ionized water 19.17%.
This proportioning is optimal proportion of the present invention, adopt the proportioning mode of present embodiment, so that cooperate the corrosion inhibiting and descaling agent that forms, disinfection effect is remarkable, strong detergency, anti-corrosion effects is better, cleaning efficiency is higher, and usage quantity is less, and cost is lower, the damage of avoiding simultaneously bacteria breed that equipment is caused, the work-ing life of improving equipment.Adopting the best PH use range of the solvent that this proportioning generates is 3-10, and the solvent of this medicament is water miscible simultaneously.
In addition, this medicament deconditioning is outside low-hardness water, and to the cooling water treatment system of the abundant south of the River water system of rainfall, effect is comparatively desirable, can also prevent the corrosion at copper material Valve joint place, in addition, can also be used for the protection against corrosion of sealing and circulating water treatment, and effect is remarkable.
Except component and proportioning that the various embodiments described above are mentioned, also include processing aid, concrete composition and content do not limit.Each the component place that wherein forms medicament adopts outside the above-mentioned data, also can be other numerical value, does not specifically limit.
Corrosion inhibiting and descaling agent for low-hardness water disclosed by the invention, by molybdate, 2-mercaptobenzothiazole, organophosphate, zinc salt, 0.01% lignin liquor, ionized water, mix according to certain percentage, molybdate has good anticorrosive effect, avoided adhering to incrustation scale on the system device to the corrosion of equipment inner wall, in the work-ing life of raising equipment, reduce use cost; 2-mercaptobenzothiazole has the anticorrosive effect of good sterilization and disinfection, incrustation scale is removed effectively, and played good disinfection effect, avoids growing of bacterium; Adopt simultaneously organophosphate as the clean-out system tenderizer, improve the cleaning efficiency of incrustation scale, reduce cleaning and use cost.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can in the situation that does not break away from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. corrosion inhibiting and descaling agent that is used for low-hardness water, it is characterized in that, the component that comprises following weight percent, molybdate 25%-28%, 2-mercaptobenzothiazole 10%-11.2%, organophosphate 37.5%-42%, zinc salt 1.75%-1.96%, 0.01% lignin liquor 2%-2.24%, ionized water 14.6%-23.75%.
2. the corrosion inhibiting and descaling agent for low-hardness water according to claim 1, it is characterized in that, the component that comprises following weight percent, molybdate 25.5%-27.5%, 2-mercaptobenzothiazole 10.2%-11%, organophosphate 38.25%-41.25%, zinc salt 1.78%-1.93%, 0.01% lignin liquor 2.04%-2.2%, ionized water 16.12%-22.23%.
3. the corrosion inhibiting and descaling agent for low-hardness water according to claim 2, it is characterized in that, the component that comprises following weight percent, molybdate 26%-27%, 2-mercaptobenzothiazole 10.4%-10.8%, organophosphate 39%-40.5%, zinc salt 1.82%-1.9%, 0.01% lignin liquor 2.08%-2.16%, ionized water 17.64%-20.7%.
4. the corrosion inhibiting and descaling agent for low-hardness water according to claim 3, it is characterized in that, the component that comprises following weight percent, molybdate 26.5%, 2-mercaptobenzothiazole 10.6%, organophosphate 39.75%, zinc salt 1.86%, 0.01% lignin liquor 2.12%, ionized water 19.17%.
5. each described corrosion inhibiting and descaling agent for low-hardness water according to claim 1-4, it is characterized in that described molybdate, 2-mercaptobenzothiazole, organophosphate, zinc salt, 0.01% lignin liquor cooperate according to 1:0.4:1.5:0.07:0.08.
6. each described corrosion inhibiting and descaling agent for low-hardness water is characterized in that according to claim 1-4, and described molybdate is potassium molybdate or Sodium orthomolybdate.
7. preparation method who is used for the corrosion inhibiting and descaling agent of low-hardness water is characterized in that concrete steps are as follows:
The first step: according to the proportioning of claim 1, will put together after molybdate, the zinc salt weighing, will put together after 2-mercaptobenzothiazole, the organophosphate weighing, will place separately after 0.01% the lignin liquor weighing;
Second step: will put into reactor after the ionized water weighing, the unlatching heating unit heats the ionized water of reactor inside, and the simultaneously stirring of opening device when the ionized water temperature arrives 27 ℃-30 ℃, keeps thermostatically heating;
The 3rd step: add 0.01% lignin liquor in the reactor, keep 27 ℃-30 ℃ of constant temperature, continue to stir 50-70 minute;
The 4th step: add respectively 27 ℃-30 ℃ of molybdates, zinc salt, maintenance constant temperature in the reactor and continue to stir 50-70 minute;
The 5th step: when stirring, reactor is proceeded heating, when reactor temperature rises to 32 ℃-34 ℃, keep thermostatically heating, and in reactor, add 2-mercaptobenzothiazole and organophosphate, keep 32 ℃-34 ℃ of constant temperature, and continue to stir 3.5-4.5 hour, form product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101898117A CN102863090A (en) | 2011-07-08 | 2011-07-08 | Corrosion and scale inhibitor for low-hardness water and preparation method thereof |
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| CN2011101898117A CN102863090A (en) | 2011-07-08 | 2011-07-08 | Corrosion and scale inhibitor for low-hardness water and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104386854A (en) * | 2014-11-04 | 2015-03-04 | 中国海洋石油总公司 | Process for treating water used for steel electrosmelting pure-water circulation system |
| CN105753184A (en) * | 2016-05-09 | 2016-07-13 | 爱环吴世(苏州)环保有限公司 | Scale inhibitor for cooling circulating water and preparation method of scale inhibitor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01299700A (en) * | 1988-05-30 | 1989-12-04 | Hakutou Kagaku Kk | Simultaneous preventing agent for corrosion and scale of metals in water system |
| CN1463935A (en) * | 2002-06-07 | 2003-12-31 | 川化集团有限责任公司 | Environment-friendly water quality stabilizer |
| CN1706759A (en) * | 2004-06-09 | 2005-12-14 | 上海久安水质稳定剂厂 | Scale and corrosion inhibitor for continuous casting soft water and steel making soft water system |
| CN1919752A (en) * | 2006-09-11 | 2007-02-28 | 北京瀚博英电力科技有限公司 | Environment-friendly type composite corrosion and scale inhibitor |
| CN101302060A (en) * | 2008-05-30 | 2008-11-12 | 山西太钢不锈钢股份有限公司 | Corrosion and scale inhibitor for industrial recirculated cooling water |
| CN101921022A (en) * | 2010-08-03 | 2010-12-22 | 北京拓凯化工技术有限公司 | Scale and corrosion inhibitor using recycled water as circulating cooling water in fired power plant, method and application thereof |
| CN101928077A (en) * | 2010-08-30 | 2010-12-29 | 天津精华石化有限公司 | Low-phosphorus corrosion and scale inhibitor |
-
2011
- 2011-07-08 CN CN2011101898117A patent/CN102863090A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01299700A (en) * | 1988-05-30 | 1989-12-04 | Hakutou Kagaku Kk | Simultaneous preventing agent for corrosion and scale of metals in water system |
| CN1463935A (en) * | 2002-06-07 | 2003-12-31 | 川化集团有限责任公司 | Environment-friendly water quality stabilizer |
| CN1706759A (en) * | 2004-06-09 | 2005-12-14 | 上海久安水质稳定剂厂 | Scale and corrosion inhibitor for continuous casting soft water and steel making soft water system |
| CN1919752A (en) * | 2006-09-11 | 2007-02-28 | 北京瀚博英电力科技有限公司 | Environment-friendly type composite corrosion and scale inhibitor |
| CN101302060A (en) * | 2008-05-30 | 2008-11-12 | 山西太钢不锈钢股份有限公司 | Corrosion and scale inhibitor for industrial recirculated cooling water |
| CN101921022A (en) * | 2010-08-03 | 2010-12-22 | 北京拓凯化工技术有限公司 | Scale and corrosion inhibitor using recycled water as circulating cooling water in fired power plant, method and application thereof |
| CN101928077A (en) * | 2010-08-30 | 2010-12-29 | 天津精华石化有限公司 | Low-phosphorus corrosion and scale inhibitor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104386854A (en) * | 2014-11-04 | 2015-03-04 | 中国海洋石油总公司 | Process for treating water used for steel electrosmelting pure-water circulation system |
| CN104386854B (en) * | 2014-11-04 | 2015-12-30 | 中国海洋石油总公司 | A kind of Electric furnace steel making pure water circulating system water treatment process method |
| CN105753184A (en) * | 2016-05-09 | 2016-07-13 | 爱环吴世(苏州)环保有限公司 | Scale inhibitor for cooling circulating water and preparation method of scale inhibitor |
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Application publication date: 20130109 |