CN103130340A - Preparation method of scale and corrosion inhibitors for electrical power system - Google Patents
Preparation method of scale and corrosion inhibitors for electrical power system Download PDFInfo
- Publication number
- CN103130340A CN103130340A CN2011103909065A CN201110390906A CN103130340A CN 103130340 A CN103130340 A CN 103130340A CN 2011103909065 A CN2011103909065 A CN 2011103909065A CN 201110390906 A CN201110390906 A CN 201110390906A CN 103130340 A CN103130340 A CN 103130340A
- Authority
- CN
- China
- Prior art keywords
- scale
- corrosion inhibitors
- preparation
- power system
- zinc salt
- 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
Landscapes
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
The invention discloses a preparation method of scale and corrosion inhibitors, belongs to the technical field of a water treatment technology of an electrical power system, and aims to provide a preparation method of the scale and corrosion inhibitors, wherein the scale and corrosion inhibitors are simple in technological process, low in production cost, of a non-phosphorus formula product, stable in quality, efficient in scale and corrosion inhibition. The technical scheme is that the scale and corrosion inhibitors are mixtures compounded of polymaleic anhydride, polyepoxysuccinic acid and zinc salt and according to a certain percentage, wherein average molecular weights of the polymaleic anhydride, the polyepoxysuccinic acid and the zinc salt are bigger than 5500. The scale and corrosion inhibitors are simple in technological process and stable in quality, and the ratios of scale and corrosion inhibitions are higher than 93%. Meanwhile, the production technology of the scale and corrosion inhibitors is an environment-friendly and clean technology, free of discharge of three industrial wastes, simple in operation, low in production cost and applied to industrialization scale production.
Description
Technical field
The present invention relates to a kind of power system with the preparation method of anti-incrustation corrosion inhibitor, belong to the power system water-treatment technology field.
Background technology
Power industry is most important basic energy resource industry in the national economic development, is the first foundation industry of national economy, is the basic industry that involves the interests of the state and the people, and is the emphasis of first developing in the Strategy for economic development of countries in the world.As a kind of advanced person's productivity and basic industry, power industry has played vital role to the development and the social progress that promote national economy.With social economy and social development, very close relationship is arranged, it is not only the large problem of strategy that concerns economic security of the country, and closely related with daily life, social stability.Along with the development of China's economic, the demand of electricity is constantly enlarged, the water yield that is used for power industry also increases day by day, in use continuous circulation of these water and concentrated, the content of mineral substances in water also constantly increases, thereby causes equipment pipe fouling, corrosion.In order to prevent the equipment pipe fouling, improve plant factor, the normal operation of producing is guaranteed at save energy, water source, need to add various water quality stabilizers in recirculated cooling water.At present, the Scale inhibitors for power system mainly contains the kinds such as poly-phosphate, organophosphate, poly carboxylic acid.Poly-phosphate, the phosphorous Series Water Treatment Chemicals of organophosphate, life-time service, become incrustation scale except meeting generation calcium phosphate precipitation sticks on heat-exchange equipment, pipeline, a large amount of phosphatic discharging meetings are to environment, and country has stipulated strict emission standard to it.Therefore, poly carboxylic acid series water conditioner is developed faster.Poly carboxylic acid is as Scale inhibitors, and using more is polyacrylic acid (sodium) and polymaleic acid etc.Because the polymaleic acid scale-inhibiting properties obviously is better than polyacrylic acid (sodium), the consumption of polyacrylic acid (sodium) Scale inhibitors in industrial circulating cooling water is on a declining curve in recent years, is just progressively substituted by the more excellent polymaleic acid series Scale inhibitors of performance.Carboxyl in polymaleic anhydride (COOH) can be hydrolyzed into-CO-and-OH, they can be adsorbed onto on the active growth point of calcium carbonate crystal and close with the Ca2+ huge legendary turtle, having suppressed lattice grows up to certain direction, lattice is distorted childlike, the molecular weight of polymaleic anhydride is larger, (COOH) quantity is more, and scale inhibition effect is better for carboxyl.Applicant has been invented the preparation method of a kind of high molecular (molecular-weight average is greater than 5500) polymaleic anhydride, and by Chinese patent application CN 200910117136.X, it is disclosed.The present invention is based on a kind of power system anti-incrustation corrosion inhibitor of this high molecular polymaleic anhydride preparation, be that a kind of performance is remarkable, scale inhibition, inhibiter in the Open recirling cooling water system that is fit to be applied in ordinary cycle water and high rigidity in field of power, high alkalinity, high pH value, belong to without phosphorus formula, be better than present anti-incrustation corrosion inhibitor product both domestic and external.
Summary of the invention
The object of the present invention is to provide a kind ofly to have that technical process is simple, production cost is low, without phosphorus formula, steady quality, the efficient power system of scale inhibitor is with the preparation method of anti-incrustation corrosion inhibitor.
Its technical scheme is: press mass fraction, molecular-weight average is that the polymaleic anhydride of 48%-52%, the ratio that content is 48%-52% poly-epoxy succinic acid, zinc salt and water are respectively 50-60%, 10-20%, 10-15%, 10-20% greater than 5500 content.
Described zinc salt is Zinc Sulphate Monohydrate to the mixture of one or two or more kinds of Zinc Sulphate Heptahydrate.
The method of its preparation is: zinc salt and water first mix, and then add poly-epoxy succinic acid, add at last polymaleic anhydride.
The present invention has following advantage:
1, scale inhibitor is effective.The molecular-weight average of the polymaleic anhydride that adopts due to the present invention is greater than 5500, and the polymaleic anhydride of high molecular has efficient dispersiveness, and they can be adsorbed onto on the active growth point of calcium carbonate crystal and Ca
2+Chelating has suppressed lattice and has grown up to certain direction, lattice is distorted childlike, and (COOH) quantity is more, and scale inhibition effect is better for carboxyl.Add zinc sulfate, the polymaleic anhydride complex reaction of zine ion and poly-epoxy succinic acid, high molecular, solution-stabilized, play corrosion inhibition in recirculated water; Poly-epoxy succinic acid also has good corrosion-mitigation scale-inhibition function, and is composite with polymaleic anhydride, and the performance synergy improves the scale inhibitor effect.
2, without phosphorus formula, non-secondary pollution.Not phosphorous in the composite raw material that the present invention adopts, can eutrophication, draining can be to environment.
3, production technique non-pollution discharge.Manufacture is the environment-friendly type cleaning procedure, and without the three industrial wastes discharging, easy and simple to handle, production cost is low, is fit to commercial scale production.
Embodiment
Embodiment 1
With zinc salt 10kg, adding to stir in 12kg water fully dissolves zinc salt, then adding content is the aqueous solution 18kg of 48%-52% poly-epoxy succinic acid, and adding content after stirring is that the molecular-weight average of 48%-52% is that 5600 polymaleic anhydride 60kg stirs fully and namely gets anti-incrustation corrosion inhibitor A without precipitation again.
Embodiment 2
With zinc salt 12kg, adding to stir in 20kg water fully dissolves zinc salt, then adding content is the aqueous solution 18kg of 48%-52% poly-epoxy succinic acid, and adding content after stirring is that the polymaleic anhydride 50kg of the molecular-weight average 6500 of 48%-52% stirs fully and namely gets anti-incrustation corrosion inhibitor B without precipitation again.
Embodiment 3
With zinc salt 15kg, adding to stir in 10kg water fully dissolves zinc salt, then adding content is the aqueous solution 20kg of 48%-52% poly-epoxy succinic acid, and adding content after stirring is that the polymaleic anhydride 55kg of the molecular-weight average 8600 of 48%-52% stirs fully and namely gets anti-incrustation corrosion inhibitor C without precipitation again.
Scale-inhibiting properties measure to adopt the static-state scale inhibition test method(s) to carry out, specifically referring to mensuration---the tosca method of water conditioner scale-inhibiting properties; Corrosion inhibition measure to adopt the rotary hanging plate weight-loss method to carry out, specifically referring to the water conditioner corrosion inhibition mensuration---the rotary hanging plate method, measurement result sees Table 1.
Table 1 scale inhibition and inhibition assessment of performance test result
Claims (3)
1. a power system with the preparation method of anti-incrustation corrosion inhibitor, is characterized in that: with molecular-weight average greater than 5500 polymaleic anhydride, poly-epoxy succinic acid, zinc salt, the water mixture of composite formation according to a certain percentage.
2. a kind of power system according to claim 1 is with the preparation method of anti-incrustation corrosion inhibitor, it is characterized in that by mass fraction, molecular-weight average is that the polymaleic anhydride of 48%-52%, the ratio that content is 48%-52% poly-epoxy succinic acid, zinc salt and water are respectively 50-60%, 10-20%, 10-15%, 10-20% greater than 5500 content.
3. a kind of power system according to claim 1 is with the preparation method of anti-incrustation corrosion inhibitor, it is characterized in that zinc salt is Zinc Sulphate Monohydrate to one or two or more kinds mixture of Zinc Sulphate Heptahydrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103909065A CN103130340A (en) | 2011-11-30 | 2011-11-30 | Preparation method of scale and corrosion inhibitors for electrical power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103909065A CN103130340A (en) | 2011-11-30 | 2011-11-30 | Preparation method of scale and corrosion inhibitors for electrical power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103130340A true CN103130340A (en) | 2013-06-05 |
Family
ID=48490859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103909065A Pending CN103130340A (en) | 2011-11-30 | 2011-11-30 | Preparation method of scale and corrosion inhibitors for electrical power system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103130340A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015101124A1 (en) * | 2014-01-03 | 2015-07-09 | 广州特种承压设备检测研究院 | Phosphorous-free corrosion and scale inhibitor used in circulating cooling water of central air conditioning, and method of preparing said inhibitor |
| CN104925966A (en) * | 2015-07-06 | 2015-09-23 | 安徽省蓝天能源环保科技有限公司 | Scale and corrosion inhibitor for oil field system |
| CN105016490A (en) * | 2015-07-06 | 2015-11-04 | 安徽省蓝天能源环保科技有限公司 | Scale and corrosion inhibitor for power cycling water system |
| CN106809962A (en) * | 2015-12-01 | 2017-06-09 | 中国石油化工股份有限公司 | A kind of composite slow-corrosion scale resistor and its preparation method and application |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4530955A (en) * | 1983-04-08 | 1985-07-23 | Ciba-Geigy Corporation | Water treatment composition comprising a hydrolyzed maleic anhydride copolymer and a zinc compound |
| CN1785853A (en) * | 2004-12-10 | 2006-06-14 | 中国石化北京燕化石油化工股份有限公司 | Non-Phosphorus composite anti incrustation eorrosion snhibiter and its application in water treatment |
| CN1869288A (en) * | 2005-05-27 | 2006-11-29 | 北京化工大学 | Method for preparing anti-corrosion film on metal surface |
| CN101269887A (en) * | 2008-04-24 | 2008-09-24 | 邢献军 | Scale corrosion inhibitor for poly-maleic anhydride boiler |
| CN101580311A (en) * | 2009-06-24 | 2009-11-18 | 安徽省蓝天化工有限公司 | Polymaleic acid boiler scale-inhibition corrosion inhibitor |
-
2011
- 2011-11-30 CN CN2011103909065A patent/CN103130340A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4530955A (en) * | 1983-04-08 | 1985-07-23 | Ciba-Geigy Corporation | Water treatment composition comprising a hydrolyzed maleic anhydride copolymer and a zinc compound |
| CN1785853A (en) * | 2004-12-10 | 2006-06-14 | 中国石化北京燕化石油化工股份有限公司 | Non-Phosphorus composite anti incrustation eorrosion snhibiter and its application in water treatment |
| CN1869288A (en) * | 2005-05-27 | 2006-11-29 | 北京化工大学 | Method for preparing anti-corrosion film on metal surface |
| CN101269887A (en) * | 2008-04-24 | 2008-09-24 | 邢献军 | Scale corrosion inhibitor for poly-maleic anhydride boiler |
| CN101580311A (en) * | 2009-06-24 | 2009-11-18 | 安徽省蓝天化工有限公司 | Polymaleic acid boiler scale-inhibition corrosion inhibitor |
Non-Patent Citations (4)
| Title |
|---|
| 唐飞等: "工业循环冷却水阻垢剂的应用和研究进展", 《化工科技》 * |
| 李德福、刘洁主编: "《石油化工清洗技术》", 31 October 2003, 化学工业出版社 * |
| 舒红英等: "无磷阻垢剂的研究进展", 《江西化工》 * |
| 郑书忠主编: "《工业水处理技术及化学品》", 31 August 2010, 化学工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015101124A1 (en) * | 2014-01-03 | 2015-07-09 | 广州特种承压设备检测研究院 | Phosphorous-free corrosion and scale inhibitor used in circulating cooling water of central air conditioning, and method of preparing said inhibitor |
| CN104925966A (en) * | 2015-07-06 | 2015-09-23 | 安徽省蓝天能源环保科技有限公司 | Scale and corrosion inhibitor for oil field system |
| CN105016490A (en) * | 2015-07-06 | 2015-11-04 | 安徽省蓝天能源环保科技有限公司 | Scale and corrosion inhibitor for power cycling water system |
| CN106809962A (en) * | 2015-12-01 | 2017-06-09 | 中国石油化工股份有限公司 | A kind of composite slow-corrosion scale resistor and its preparation method and application |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100434376C (en) | Low phosphate green composite corrosion and scale inhibitor for treating circular cooling water and its usage | |
| CN102351328B (en) | Green total organic carbon steel scale and corrosion inhibitor for circulating cooling water system | |
| CN103523935B (en) | Preparation method of tracing type phosphorus-free corrosion and scale inhibitor | |
| CN103482775B (en) | Composite scale and corrosion inhibitor and preparation method thereof | |
| CN102774969A (en) | Biodegradable non-phosphorous anti-scale corrosion inhibitor and preparation method thereof | |
| WO2015101124A1 (en) | Phosphorous-free corrosion and scale inhibitor used in circulating cooling water of central air conditioning, and method of preparing said inhibitor | |
| CN101700937A (en) | Composite scale inhibitor | |
| CN101412565A (en) | Efficient scale corrosion inhibitor for carbon steel system | |
| CN101423300B (en) | Scale and corrosion inhibitor suitable for reclaimed water reuse system | |
| CN103420497A (en) | Non-phosphorous corrosion and scale inhibitor containing lignosulfonate and application thereof | |
| CN103466814A (en) | High temperature resisting composite water treatment agent and preparation method thereof | |
| CN103130340A (en) | Preparation method of scale and corrosion inhibitors for electrical power system | |
| CN103130344A (en) | Green environment-friendly corrosion and scale inhibitor | |
| CN105016490A (en) | Scale and corrosion inhibitor for power cycling water system | |
| CN102167451B (en) | Composite multiple dirt dispersion agent for oilfield flooding treatment and preparation method thereof | |
| CN104310600A (en) | Environment-friendly composite water treatment agent and application thereof | |
| CN102838216A (en) | Corrosion and scale inhibitor for treating water in heating boiler in winter | |
| CN106277379A (en) | A kind of environment-friendly chitosan compound corrosion inhibiting and descaling agent and preparation method thereof | |
| CN102030421A (en) | Composite scale inhibitor as well as preparation method and application thereof | |
| CN106007017A (en) | Green and environment-friendly composite scale and corrosion inhibition chemical and preparation method thereof | |
| CN102701471A (en) | High-harness water corrosion and scale inhibitor | |
| CN103130338A (en) | Preparation method of scale and corrosion inhibitor for chemical industry field | |
| CN102745824A (en) | Environment-friendly type water-processing corrosion and scale inhibitor and preparation method thereof | |
| CN107021566A (en) | Efficient low-phosphorus high temperature buck dispersant preparation method and its application | |
| CN104140162A (en) | Non-phosphorus scale and corrosion inhibitor employing seawater as circulating cooling water, and preparation method thereof |
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 |
Application publication date: 20130605 |