FIELD: protection of metals from corrosion.
SUBSTANCE: corrosion inhibitor composition contains (a) at least one diethanolamine-gluconate salt and (b) a biodegradable cationic compound having a molecular weight less than 500 Dalton, wherein the biodegradable cationic compound is choline chloride. Another version of the corrosion inhibitor composition contains at least one salt of diethanolamine-gluconate, isoascorbic acid as an antioxidant and a buffer containing calcium oxide.
EFFECT: corrosion inhibitors meet environmental requirements and are capable of preventing/suppressing corrosion in the presence of oxygen, especially in brines with high TDS (total amount of dissolved solid substances) used in oil deposits.
6 cl, 6 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| FOAM REMOVAL OF LIQUID WITH APPLICATION OF ETHER SULFONATES OF ALCOHOLS | 2016 |
|
RU2710269C2 |
| CORROSION INHIBITOR OF PROLONGED ACTION FOR PROTECTION OF OIL FIELD AND OIL-REFINING EQUIPMENT (VERSIONS) | 2012 |
|
RU2518034C2 |
| METHOD OF PREPARING PETROLEUM PRODUCT/NITRIC ACID/AIR INTERACTION PRODUCT MANIFESTING ANTICORROSION PROPERTIES, AND CORROSION INHIBITOR COMPOSITION | 2003 |
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| ANTI-CORROSION DETERGENT COMPOSITIONS AND USE THEREOF IN CLEANING DENTAL AND MEDICAL INSTRUMENTS | 2006 |
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RU2388797C2 |
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|
RU2749854C2 |
| COMPOSITIONS AND METHODS USEFUL FOR REMOVING TABLET COATINGS | 2014 |
|
RU2676474C2 |
| COMPOSITION FOR EQUIPMENT PROTECTION FROM CORROSION AND INORGANIC SALT DEPOSITS | 2006 |
|
RU2324005C2 |
| FORMATION OF HYDRATES AND CORROSION INHIBITOR BASED ON SULPHONATED CHITOSAN | 2020 |
|
RU2736036C1 |
| COMPLEX CARBOXYLATE POLYSACCHARIDE ESTER | 2015 |
|
RU2654031C2 |
| OXYETHYLATED ALKYL- (OR PHENOL)METHYL- OR ETHYL PHOSPHITES OF N-METHYL- OR ETHYLALKYLAMMONIUM AS CORROSION INHIBITORS POSSESSING BACTERICIDAL ACTIVITY WITH RESPECT TO SULFATE-REDUCING MICROORGANISMS | 2006 |
|
RU2298555C1 |
