CN1718863A - Film green corrosion inhibitor for inhibiting corrosion of carbon steel in sea water - Google Patents
Film green corrosion inhibitor for inhibiting corrosion of carbon steel in sea water Download PDFInfo
- Publication number
- CN1718863A CN1718863A CN 200510085648 CN200510085648A CN1718863A CN 1718863 A CN1718863 A CN 1718863A CN 200510085648 CN200510085648 CN 200510085648 CN 200510085648 A CN200510085648 A CN 200510085648A CN 1718863 A CN1718863 A CN 1718863A
- Authority
- CN
- China
- Prior art keywords
- corrosion
- corrosion inhibitor
- carbon steel
- inhibiter
- seawater
- 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 gluconate, zinc sulfate, dodecyl heteroside, sodium tungstate and sodium silicate. Their weight ratio ranges successively are 12-18, 55-60, 12-18, 5-10 and 3-7, the above-mentioned all the components can be obtained by utilizing by-products produced in the course of processing 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 film green corrosion inhibitor (being called for short SWC412) 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 novel green inhibiter in seawater, to replace the inhibiter of existing serious environment pollution.
A kind of inhibition carbon steel corrosive film green corrosion inhibitor in seawater, it is characterized in that it contains calglucon, zinc sulfate, lauryl glucosyl, sodium wolframate and water glass, their part by weight scope is followed successively by: 12-18,55-60,12-18,5-10 and 3-7.
The preparation method of above-mentioned inhibiter is characterized in that taking by weighing calglucon, zinc sulfate, lauryl glucosyl, sodium wolframate and water glass, is mixed with the aqueous solution respectively, then they is mixed; The preparation lauryl glucosyl aqueous solution must fully 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 five components to be formed.Each component is mixed with earlier the aqueous solution respectively, wherein calcium gluconate solution contains calglucon 14.3g and is called A liquid, the solution that is mixed with 57.1g zinc sulfate is called B liquid, the solution that is mixed with the 14.3g lauryl glucosyl is called C liquid, and the solution that is mixed with 8.6g sodium wolframate and 5.7g water glass lumps together and is called D liquid.The volume of four 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 be warmed to 60-70 ℃ of preparation, after the cooling 4 kinds of solution are mixed, be inhibiter of the present invention.
When doing corrosion inhibition test, solutions employed is 2 kinds, 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 SWC412 seawater media inhibitor 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 total concn of total amount in seawater of five components of this inhibiter is 280ppm, be 93.8% to the inhibition efficiency of 907 carbon steels.
Embodiment 2
Experimental technique is identical with embodiment 1, is followed successively by 15.2g, 55.4g, 16.6g, 6.2g and 6.6g and water is mixed with inhibiter according to the weight of calglucon, zinc sulfate, lauryl glucosyl, sodium wolframate and water glass.When the concentration of gross weight in seawater of five components of inhibiter is 250ppm, be 93.13% to the inhibition efficiency of 907 carbon steels.
For realizing purpose of the present invention, selected material calglucon, zinc sulfate, lauryl glucosyl, water glass and sodium wolframate all are the general industry product that environment do not had any pollution.This inhibiter belongs to film-forming corrosion inhibitor, experimental studies have found that: this inhibiter can fast filming under high density, can effectively reduce the working concentration of inhibiter like this.
Experimental result shows, this inhibiter is in the seawater medium, and the total concentration by weight of its 5 components has been done 28 days lacing film zero-G test to 907 carbon steels in the 200-350ppm scope, the inhibition efficiency that records is all more than 92%, and inhibition efficiency has reached 93.8% when this concentration is 280ppm.The surface-brightening of laboratory sample, do not see that macro etch and Cavitations are arranged.
Claims (2)
1. one kind is suppressed carbon steel corrosive film green corrosion inhibitor in seawater, it is characterized in that it contains calglucon, zinc sulfate, lauryl glucosyl, sodium wolframate and water glass, their part by weight scope is followed successively by: 12-18,55-60,12-18,5-10 and 3-7.
2. the preparation method of claims 1 described green corrosion inhibitor is characterized in that taking by weighing calglucon, zinc sulfate, lauryl glucosyl, sodium wolframate and water glass, is mixed with the aqueous solution respectively, then they is mixed; The preparation lauryl glucosyl aqueous solution must fully stir and heating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510085648 CN1718863A (en) | 2005-04-26 | 2005-07-21 | Film green corrosion inhibitor for inhibiting corrosion of carbon steel in sea water |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510043387 | 2005-04-26 | ||
| CN200510043387.X | 2005-04-26 | ||
| CN 200510085648 CN1718863A (en) | 2005-04-26 | 2005-07-21 | Film green corrosion inhibitor for inhibiting corrosion of carbon steel in sea water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1718863A true CN1718863A (en) | 2006-01-11 |
Family
ID=35930809
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510085648 Pending CN1718863A (en) | 2005-04-26 | 2005-07-21 | Film green corrosion inhibitor for inhibiting corrosion of carbon steel in sea water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1718863A (en) |
Cited By (6)
| 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 |
| CN102167537A (en) * | 2011-01-27 | 2011-08-31 | 南京瑞迪高新技术公司 | Reinforced concrete antirust agent with sulfate corrosion resistant function |
| 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 |
| CN102345130A (en) * | 2011-08-30 | 2012-02-08 | 吴江市精工铝字制造厂 | Corrosion inhibitor |
| CN105039997A (en) * | 2015-06-25 | 2015-11-11 | 广东电网有限责任公司电力科学研究院 | Tungstate carbon steel compound corrosion inhibitor for natural seawater |
| CN107829092A (en) * | 2017-12-26 | 2018-03-23 | 辽宁师范大学 | A kind of environmental type carbon steel corrosion inhibitor |
-
2005
- 2005-07-21 CN CN 200510085648 patent/CN1718863A/en active Pending
Cited By (7)
| 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 |
| CN102167537A (en) * | 2011-01-27 | 2011-08-31 | 南京瑞迪高新技术公司 | Reinforced concrete antirust agent with sulfate corrosion resistant function |
| 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 |
| CN102345130A (en) * | 2011-08-30 | 2012-02-08 | 吴江市精工铝字制造厂 | Corrosion inhibitor |
| 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 |
| CN105039997A (en) * | 2015-06-25 | 2015-11-11 | 广东电网有限责任公司电力科学研究院 | Tungstate carbon steel compound corrosion inhibitor for natural seawater |
| CN107829092A (en) * | 2017-12-26 | 2018-03-23 | 辽宁师范大学 | A kind of environmental type carbon steel corrosion inhibitor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| 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 | |
| CN100491595C (en) | Acid pickling inhibitor and preparation method thereof | |
| CN101705492A (en) | Steel hydrochloric acid pickling corrosion inhibitor | |
| CN1915866A (en) | Long effective environmental protection type corrosion inhibitor for inclosed recirculated cooling water | |
| CN105481116A (en) | Circulating cooling water corrosion and scale inhibitor and preparation method thereof | |
| CN104894566A (en) | Composite corrosion inhibitor for seawater circulation cooling system carbon steel material anticorrosion | |
| CN1718862A (en) | Compounding type green corrosion inhibitor for inhibiting corrosion of carbon steel in sea water | |
| CN107512784A (en) | A kind of corrosion inhibiting and descaling agent for organic alcohols refrigerating system and preparation method thereof | |
| Ali et al. | Gallic acid as corrosion inhibitor for aluminum 6061 in alkali solutions | |
| CN102225809A (en) | Ascorbic acid phosphorus-free corrosion and scale inhibitor, and preparation method thereof | |
| CN104787946A (en) | Steel rolling waste acid complete resource recycling method | |
| CN108996714A (en) | A kind of recirculated cooling water phosphate-free corrosion inhibition antisludging agent | |
| CN110257178B (en) | Descaling cleaning agent for galvanizing equipment | |
| CN1565994A (en) | Polynary composite water treatment agent | |
| CN102660745A (en) | Green corrosion inhibitor for hot-dip zinc-aluminium alloy steel, and application thereof | |
| CN112815767A (en) | Cleaning method of seawater desalination device | |
| CN103757641A (en) | Corrosion inhibition cleanser for sea water desalting plant and application thereof | |
| CN111039423A (en) | Antiscaling agent for circulating cooling water treatment and preparation method thereof | |
| CN102330092B (en) | Green corrosion inhibitor used for titanium in acid medium | |
| CN105177544A (en) | Novel cold-rolled steel sheet passivating agent | |
| CN102051628A (en) | Degradable environment-friendly dirt remover | |
| CN106011832A (en) | Meta-aluminate passivation solution used for passivation of electrolytic manganese metal and use method of solution | |
| CN114684931A (en) | Corrosion inhibitor suitable for high-salt and high-chlorine working condition and preparation method thereof | |
| CN105540880A (en) | Energy saving nursing agent for evaporative condenser |
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 |