FIELD: corrosion prevention.
SUBSTANCE: invention relates to the field of prevention of corrosion in aqueous solutions in industry and energy by creating a protective film on the metal surface. A method for preventing metal corrosion in aqueous solutions is carried out by creating a protective coating on the metal surface, while an aqueous solution containing 100-200 mg/l of nitrile trimethylenephosphonic acid (NTP) and 3-6 mg of magnesium ions (in terms of the concentration metal), metal surface treatment is carried out under normal conditions for at least 6 hours to form a protective coating with a thickness of at least 60 nm.
EFFECT: increasing the efficiency of corrosion treatment by creating a protective coating in the form of a film on a metal surface, including the metal surface of large parts.
3 cl, 2 tbl, 19 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PREVENTION OF METAL CORROSION IN AQUEOUS SOLUTIONS | 2021 |
|
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| COMPOSITION FOR REMOVING HIGH-TEMPERATURE MINERAL SALT DEPOSITS FROM THERMAL POWER EQUIPMENT | 2000 |
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| METHOD OF OBTAINING INHIBITOR OF PRECIPITATION OF MINERAL SALTS | 2007 |
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| METHOD OF PREVENTING SCALING AND CORROSION IN WATER SUPPLY SYSTEMS | 2011 |
|
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| CORROSION AND SCALING INHIBITOR | 2014 |
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| COMPOSITION FOR PREVENTING OF DEPOSITIONS AND CORROSION | 1993 |
|
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| ORGANOPHOSPHONATE COMPOSITION FOR STABILIZATION WATER TREATMENT IN WATER USE SYSTEMS | 2020 |
|
RU2745822C1 |
