CN103130338A - Preparation method of scale and corrosion inhibitor for chemical industry field - Google Patents
Preparation method of scale and corrosion inhibitor for chemical industry field Download PDFInfo
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- CN103130338A CN103130338A CN2011103909686A CN201110390968A CN103130338A CN 103130338 A CN103130338 A CN 103130338A CN 2011103909686 A CN2011103909686 A CN 2011103909686A CN 201110390968 A CN201110390968 A CN 201110390968A CN 103130338 A CN103130338 A CN 103130338A
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Abstract
The invention discloses a preparation method of a scale and corrosion inhibitor for the chemical industry field and belongs to the technical field of chemical industry. The preparation method of the scale and corrosion inhibitor for the chemical industry field is technically characterized in that polymaleic anhydride with an average molecular weight higher than 5500 is used as a main raw material; water is used as a solvent; carboxyl (-COOH) in the raw material is hydrolyzed to be -CO- and -OH; zinc sulfate is added; and metal zinc ions and the polymaleic anhydride with high molecular weight form a stable complexation material through a complexation reaction. The preparation method of the scale and corrosion inhibitor for the chemical industry field is simple in technological process of production, stable in product quality and high in scale and corrosion inhibition rate. Meanwhile, the production process is an environment-friendly cleaning process. The preparation method of the scale and corrosion inhibitor for the chemical industry field is free from discharging of three industrial wastes, simple and convenient to operate, low in production cost and suitable for industrialization scale production.
Description
Technical field
The present invention relates to a kind of chemical field with the preparation method of anti-incrustation corrosion inhibitor, belong to chemical technology field.
Background technology
Along with developing rapidly of chemical industry production, the chemical industry water consumption also significantly increases.In use continuous circulation of water coolant 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 anti-incrustation corrosion inhibitors in recirculated cooling water.At present, the Scale inhibitors for industrial circulating cooling water 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 CN200910117136.X, it is disclosed.The present invention is based on a kind of chemical field 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 chemical field, 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
A kind of chemical field of the present invention is to be main raw material by molecular-weight average greater than 5500 polymaleic anhydride with the preparation method of anti-incrustation corrosion inhibitor, add zinc sulfate, the polymaleic anhydride of metallic zinc ion and high molecular forms stable complex compound by complex reaction, purpose be to provide that a kind of to have flow process simple, raw and auxiliary material is easy to get, reaction time is short, production cost is low, without phosphorus formula, steady quality, the preparation method of the efficient composite scale inhibitor of scale inhibitor.
Its technical scheme is: take molecular-weight average greater than 5500 polymaleic anhydride as main raw material, water is solvent, with the carboxyl in raw material (COOH) be hydrolyzed into-CO-and-OH, add zinc sulfate, the polymaleic anhydride of metallic zinc ion and high molecular forms stable complex compound by complex reaction.The quality proportioning of described polymaleic anhydride, water and zinc sulfate is: compound a kind of of 20-60: 30-70: 10-20.
Its beneficial effect is: the complex process flow process is simple, and raw and auxiliary material is easy to get, and reaction time is short, and production cost is low, and the corrosion-mitigation scale-inhibition rate is high.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.Simultaneously, its production technique is the environment-friendly type cleaning procedure, and is easy and simple to handle without the three industrial wastes discharging, is fit to commercial scale production.The molecular-weight average of polymaleic anhydride 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 high molecular, solution-stabilized, play corrosion inhibition in recirculated water, composite with polymaleic anhydride, the performance synergy improves the scale inhibitor effect.
Embodiment
Embodiment 1.Be 5600 to add in the 30kg aqueous solution with 60kg polymaleic acid molecular-weight average, then add zinc sulfate 10kg, stir fully and namely gets a kind of chemical field anti-incrustation corrosion inhibitor without precipitation.
Embodiment 2.Be 6500 to add in the 40kg aqueous solution with 40kg polymaleic acid molecular-weight average, then add zinc sulfate 20kg, stir fully and namely gets a kind of chemical field anti-incrustation corrosion inhibitor without precipitation.
Embodiment 3.Be 8600 to add in the 70kg aqueous solution with 20kg polymaleic acid molecular-weight average, then add zinc sulfate 10kg, stir fully and namely gets a kind of chemical field anti-incrustation corrosion inhibitor without precipitation.
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 is measured and is adopted the rotary hanging plate weight-loss method to carry out, and specifically referring to mensuration---the rotary hanging plate method of water conditioner corrosion inhibition, adopts the measurement result of above three kinds of embodiment preparation, and scale inhibition performance and corrosion inhibition rate are all greater than 95%, and its scale inhibition slow release effect is better.
Claims (2)
1. a chemical field is with the preparation method of anti-incrustation corrosion inhibitor, it is characterized in that: take the polymaleic anhydride of molecular-weight average 5500 as main raw material, water is solvent, with the carboxyl in raw material (COOH) be hydrolyzed into-CO-and-OH, add zinc sulfate, the polymaleic anhydride of metallic zinc ion and high molecular forms stable complex compound by complex reaction.
2. a kind of chemical field according to claim 1 with the preparation method of anti-incrustation corrosion inhibitor, is characterised in that the quality proportioning of described polymaleic anhydride, water and zinc sulfate is: compound a kind of of 20-60: 30-70: 10-20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103909686A CN103130338A (en) | 2011-11-30 | 2011-11-30 | Preparation method of scale and corrosion inhibitor for chemical industry field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103909686A CN103130338A (en) | 2011-11-30 | 2011-11-30 | Preparation method of scale and corrosion inhibitor for chemical industry field |
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| CN103130338A true CN103130338A (en) | 2013-06-05 |
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| CN2011103909686A Pending CN103130338A (en) | 2011-11-30 | 2011-11-30 | Preparation method of scale and corrosion inhibitor for chemical industry field |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556417A (en) * | 2013-10-12 | 2015-04-29 | 中国石油化工股份有限公司 | Composite corrosion-inhibiting and antisludging agent composition and preparation method thereof |
| 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 |
| CN113308288A (en) * | 2021-06-18 | 2021-08-27 | 湖南加美乐素新材料股份有限公司 | Special building template paint and preparation method thereof |
Citations (6)
| 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 |
| CN1850661A (en) * | 2006-05-11 | 2006-10-25 | 同济大学 | Green environment-protective composite slow-corrosion scale resistor for circulated cooling-water treatment |
| CN101269887A (en) * | 2008-04-24 | 2008-09-24 | 邢献军 | Scale corrosion inhibitor for poly-maleic anhydride boiler |
| CN101575392A (en) * | 2009-06-24 | 2009-11-11 | 安徽省蓝天化工有限公司 | Preparation method of polymaleic acid |
| 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 CN2011103909686A patent/CN103130338A/en active Pending
Patent Citations (6)
| 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 |
| CN1850661A (en) * | 2006-05-11 | 2006-10-25 | 同济大学 | Green environment-protective composite slow-corrosion scale resistor for circulated cooling-water treatment |
| CN101269887A (en) * | 2008-04-24 | 2008-09-24 | 邢献军 | Scale corrosion inhibitor for poly-maleic anhydride boiler |
| CN101575392A (en) * | 2009-06-24 | 2009-11-11 | 安徽省蓝天化工有限公司 | Preparation method of polymaleic acid |
| 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 (1)
| Title |
|---|
| 李德福，刘洁: "《石油化工清洗技术》", 31 October 2003, 化学工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556417A (en) * | 2013-10-12 | 2015-04-29 | 中国石油化工股份有限公司 | Composite corrosion-inhibiting and antisludging agent composition and preparation method thereof |
| CN104556417B (en) * | 2013-10-12 | 2017-01-04 | 中国石油化工股份有限公司 | A kind of composite slow-corrosion scale resistor compositions and preparation method thereof |
| 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 |
| CN113308288A (en) * | 2021-06-18 | 2021-08-27 | 湖南加美乐素新材料股份有限公司 | Special building template paint and preparation method thereof |
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Application publication date: 20130605 |