CN1718862A - Compounding type green corrosion inhibitor for inhibiting corrosion of carbon steel in sea water - Google Patents
Compounding type green corrosion inhibitor for inhibiting corrosion of carbon steel in sea water Download PDFInfo
- Publication number
- CN1718862A CN1718862A CN 200510085647 CN200510085647A CN1718862A CN 1718862 A CN1718862 A CN 1718862A CN 200510085647 CN200510085647 CN 200510085647 CN 200510085647 A CN200510085647 A CN 200510085647A CN 1718862 A CN1718862 A CN 1718862A
- Authority
- CN
- China
- Prior art keywords
- corrosion
- corrosion inhibitor
- carbon steel
- type green
- zinc sulfate
- 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 corrosion inhibitor contains the components of calcium gluconat, zinc sulfate and octacosane alcohol, their weight ratio ranges successively and respectively are 25-30, 55-60 and 12-17. The above-mentioned every component can be obtained by utilizing by-products produced in course of producing non-toxic nuisance-free agricultural and sideline products, foods and medicines through the processes of separation, purification and modification.
Description
Technical field
The present invention relates to a kind of inhibition carbon steel corrosive compounding type green corrosion inhibitor (being called for short SWC241) in seawater.
Background technology
The history in existing more than 100 year of the use of inhibiter, but because seawater has strong corrosion effect and the media environment of complexity and the diversity of influence factor, and the research of seawater media inhibitor is started late, tempo is slow; Especially in the research of the green corrosion inhibitor that inhibition and protection environment are laid equal stress on, still be in the test exploratory stage at present.The result of study of Karsulin shows, adds 10000mgL
-1Potassium bichromate can make the inhibition efficiency of seawater middle low carbon steel reach [Yugoslav Belgian Conf. Corros.Port.Materials, Dubrovnik, 1976:56～62] more than 80%, but but caused the spot corrosion of substrate carbon steel material.The novel carbon steel corrosion inhibitor of XM-303, XM-404 of development such as Guo Liangsheng is composite with amine molybdate, phosphoric acid triethylamine and primary zinc phosphate, inhibition efficiency can be brought up to 99.73%[98 whole nation environmental corrosion and protection seminar collection of thesis, 1998.].The problem of the maximum that existing corrosion inhibitor of sea water exists is exactly that the consumption of inhibiter is big, cost is high, seriously polluted to briny environment, the especially use of chromic salt, nitrite, the environment that the severe contamination mankind depend on for existence.Frequent generation along with serious day by day, the red tide of seawater eutrophication has higher inhibition efficiency though contain phosphor corrosion inhibitor, and its use still is very limited.
Summary of the invention
The object of the present invention is to provide a kind of efficient, nontoxic, cheap inhibition carbon steel corrosive compounding type green corrosion inhibitor in seawater, to replace the inhibiter of existing serious environment pollution.
A kind of inhibition carbon steel corrosive compounding type green corrosion inhibitor in seawater is characterized in that it contains calglucon, zinc sulfate and policosanol, and their part by weight scope is respectively 25-30,55-60,12-17 successively.
The preparation method of above-mentioned green corrosion inhibitor is characterized in that taking by weighing calglucon, zinc sulfate and policosanol, is mixed with the aqueous solution respectively, then the three is mixed; Preparation octacosane alcohol solution must stir and heating.
Each component of inhibiter of the present invention can utilize that the by product of non-toxic and non-pollution agricultural byproducts and the food medicine course of processing separates, purification and modification obtain, can turn waste into wealth effective and reasonablely, realize distributing rationally of resource, therefore cost low, nuisanceless, be beneficial to sustainable development, inhibition efficiency height, simple to operate during preparation, easy to use, can replace in the past environment is had the inhibiter of pollution.
Embodiment
Embodiment 1
Inhibiter of the present invention contains three components, each component is mixed with the aqueous solution respectively earlier, and wherein calcium gluconate solution contains calglucon 28.6g, is called A liquid, the solution that is mixed with 57.2g zinc sulfate is called B liquid, and the solution that is mixed with 14.2g policosanol (OCTA) is called C liquid.The volume of three kinds of aqueous solution is 1 liter.Because the saturation solubility of C liquid is less, in the process of preparation, need fully to stir, and heat to 65-75 ℃ of preparation, after the cooling, three kinds of solution are mixed, be inhibiter of the present invention.
Solutions employed is 2 kinds when doing corrosion inhibition test, and a kind of is the natural sea-water that does not add any inhibiter, and second kind is the natural sea-water that adds the SWC241 inhibiter of above-mentioned preparation.Experiment material is 907 carbon steels, and specification is: 30mm * 20mm * 0.6mm, test sample surface-area are 1260mm
2Specimen in use is through polishing, tap water flushing, alcohol flushing, cold air drying, and is standby after being placed in the moisture eliminator that silica-gel drier is housed 24.
Weight-loss method is adopted in experiment, and this method is to measure erosion rate according to the changes in weight of sample before and after corrosion.For the data that make things convenient for each time different experiments and various sample can compare mutually, adopt the variation of the weightlessness on unit surface sign average corrosion rate gm in the unit time usually
-2D
-1
Calculation formula is as follows:
v＝(W
0-W
1-W
2)/At
In the formula: V-sample erosion rate (gm
-2D
-1) A-sample area (m
2); T-experimental period (d); W
0-sample original weight (g); W
1-test and remove the weight (g) of sample behind the corrosion product; W
2-correction the weightlessness (g) of same size same material check sample when removing corrosion product.
Use following formula to calculate the corrosion inhibition rate of inhibiter:
IE＝(1-V/V
0)×100％
In the formula: the corrosion inhibition rate of IE-inhibiter (%); Erosion rate (the gm of sample behind the V-adding inhibiter
-2D
-1); V
0Erosion rate (the gm of sample in the-blank seawater
-2D
-1).
The experimental result of measuring is as follows: when the concentration of total amount in seawater of three components of inhibiter is 300ppm, be 97.62% to the inhibition efficiency of 907 carbon steels.
Embodiment 2
Experimental technique is identical with embodiment 1, and the weight of three component calglucons, zinc sulfate and policosanols that used inhibiter contains is respectively 26.5g, 58.1g and 15.4g.When the total concentration by weight of these three components in seawater is 350ppm, be 98.63% to the inhibition efficiency of 907 carbon steels.
The selected material of the present invention all is the general industry product that environment do not had any pollution, calglucon, zinc sulfate and OCTA.Show through experimental study: between calglucon and the zinc sulfate, have the obvious synergistic effect between calglucon and the OCTA, and between zinc sulfate and OCTA, do not have synergistic effect.Its corrosion Inhibition Mechanism is the collaborative and solution metal ion generation coordination reaction of OCTA and gluconic acid radical ion; generate the three-dimensional protective membrane of one deck at protected material surface; the zine ion of zinc sulfate forms the zinc hydroxide precipitation in protected surface simultaneously; can fill up the hole of three-dimensional films; two kinds of effects are had complementary advantages, and have improved inhibition efficiency.
Experimental result shows, this inhibiter in the seawater medium, when the total concentration by weight of its three components in the 120-500ppm scope, 907 carbon steels have been done 27 days lacing film zero-G test, all more than 98%, inhibition efficiency reaches 98.73% to the inhibition efficiency that records when concentration reaches 350ppm.The surface-brightening of laboratory sample, macro etch and Cavitations are not arranged.
Claims (2)
1. one kind is suppressed carbon steel corrosive compounding type green corrosion inhibitor in seawater, it is characterized in that it contains calglucon, zinc sulfate and policosanol, and their part by weight scope is respectively 25-30,55-60,12-17 successively.
2. the preparation method of claims 1 described green corrosion inhibitor is characterized in that taking by weighing calglucon, zinc sulfate and policosanol, is mixed with the aqueous solution respectively, then the three is mixed; Preparation octacosane alcohol solution must fully stir and heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510085647 CN1718862A (en) | 2005-04-26 | 2005-07-21 | Compounding type green corrosion inhibitor for inhibiting corrosion of carbon steel in sea water |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510043388 | 2005-04-26 | ||
| CN200510043388.4 | 2005-04-26 | ||
| CN 200510085647 CN1718862A (en) | 2005-04-26 | 2005-07-21 | Compounding type green corrosion inhibitor for inhibiting corrosion of carbon steel in sea water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1718862A true CN1718862A (en) | 2006-01-11 |
Family
ID=35930808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510085647 Pending CN1718862A (en) | 2005-04-26 | 2005-07-21 | Compounding type green corrosion inhibitor for inhibiting corrosion of carbon steel in sea water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1718862A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100419123C (en) * | 2006-04-07 | 2008-09-17 | 中国科学院海洋研究所 | Acidic cleaner for carbon steel and applications |
| CN100424228C (en) * | 2006-01-14 | 2008-10-08 | 中国海洋大学 | Scale and corrosion inhibitor for inhibiting corrosion of carbon steel |
| CN102296298A (en) * | 2011-08-30 | 2011-12-28 | 吴江市精工铝字制造厂 | Aluminum alloy corrosion inhibitor of saline medium |
-
2005
- 2005-07-21 CN CN 200510085647 patent/CN1718862A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100424228C (en) * | 2006-01-14 | 2008-10-08 | 中国海洋大学 | Scale and corrosion inhibitor for inhibiting corrosion of carbon steel |
| CN100419123C (en) * | 2006-04-07 | 2008-09-17 | 中国科学院海洋研究所 | Acidic cleaner for carbon steel and applications |
| CN102296298A (en) * | 2011-08-30 | 2011-12-28 | 吴江市精工铝字制造厂 | Aluminum alloy corrosion inhibitor of saline medium |
| CN102296298B (en) * | 2011-08-30 | 2012-12-05 | 吴江市精工铝字制造厂 | Aluminum alloy corrosion inhibitor of saline medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100591802C (en) | Chromium-free passivation liquid for galvanized sheet and manufacture method thereof | |
| CN1718863A (en) | Film green corrosion inhibitor for inhibiting corrosion of carbon steel in sea water | |
| CN101230260B (en) | Compound inhibitor for exploitation of oil-gas field and preparation method thereof | |
| CN105481116A (en) | Circulating cooling water corrosion and scale inhibitor and preparation method thereof | |
| CN102634835B (en) | Anticorrosive layered double-hydroxy composite metal hydroxide film and preparation method thereof | |
| CN1718862A (en) | Compounding type green corrosion inhibitor for inhibiting corrosion of carbon steel in sea water | |
| CN104894566A (en) | Composite corrosion inhibitor for seawater circulation cooling system carbon steel material anticorrosion | |
| CN101503426B (en) | Novel technique for coproduction of 2-phosphonobutane-1,2,4-tricabroxylic acid and methyl chloride | |
| Valdez et al. | Corrosion control in the desalination industry | |
| CN107512784A (en) | A kind of corrosion inhibiting and descaling agent for organic alcohols refrigerating system and preparation method thereof | |
| CN104531087A (en) | Superpolymer composite antifreezing solution | |
| CN102225809A (en) | Ascorbic acid phosphorus-free corrosion and scale inhibitor, and preparation method thereof | |
| CN1273394C (en) | Multi-component composite water treatment agent | |
| CN104230015A (en) | Composite slow-release scale inhibitor suitable for petrochemical wastewater reusing circulating water system | |
| CN110257178B (en) | Descaling cleaning agent for galvanizing equipment | |
| CN102330092B (en) | Green corrosion inhibitor used for titanium in acid medium | |
| CN103757641A (en) | Corrosion inhibition cleanser for sea water desalting plant and application thereof | |
| CN105026513A (en) | Corrosion inhibitors for cooling water applications | |
| CN103834956A (en) | Cleaning agent household heating system consisting of various metal materials and preparation method for cleaning agent | |
| CN114684931A (en) | Corrosion inhibitor suitable for high-salt and high-chlorine working condition and preparation method thereof | |
| CN106011832A (en) | Meta-aluminate passivation solution used for passivation of electrolytic manganese metal and use method of solution | |
| Tarmizi et al. | Utilization of Dendrobium crumenatum as anti-corrosion additive for mild steel in differnt seawater velocities | |
| CN110184610A (en) | A kind of seawater circulation water environmental protection carbon steel composite corrosion inhibitor and preparation method thereof | |
| CN100424228C (en) | Scale and corrosion inhibitor for inhibiting corrosion of carbon steel | |
| CN108251847A (en) | A kind of compound preservative containing benzotriazole 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 |