FIELD: metal protection.
SUBSTANCE: invention relates to the field of protection of metals from corrosion. It is proposed to use the products of the purification of spent engine oil, isolated during the cleaning process with the help of separating agent carbamide as a protective coating of the steel pipeline from underground corrosion. Waste engine oil purification products belong to the third hazard class, are accessible due to the lack of restrictions on the raw material base, are hydrophobic, in addition, they are an inhibitor of anodic action against underground corrosion of steel, their protective efficiency reaches 70-95%.
EFFECT: resulting products are hydrophobic and are an inhibitor of anodic action against underground corrosion of steel.
1 cl, 5 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| INHIBITOR OF ANODIC ACTION OF UNDERGROUND STEEL CORROSION | 2021 |
|
RU2771344C1 |
| PROTECTIVE COATING OF STEEL PIPELINE AGAINST UNDERGROUND CORROSION | 2020 |
|
RU2760782C1 |
| PROTECTION METHOD OF STEEL AGAINST ATMOSPHERIC CORROSION WITH RAPE OIL FILMS | 2011 |
|
RU2477764C2 |
| METHOD FOR PROTECTION OF CARBON STEEL AGAINST ATMOSPHERIC CORROSION WITH COATINGS BASED ON ZINC-FILLED RAPESEED OIL | 2011 |
|
RU2482222C1 |
| PROCEDURE FOR PROTECTION OF METAL ITEMS FROM ATMOSPHERE CORROSION UNDER CONDITIONS OF SALT SPRAY | 2010 |
|
RU2432387C1 |
| METHOD FOR OBTAINING AN ANTICORROSIVE COMPOSITION | 2022 |
|
RU2786285C1 |
| PROTECTIVE LUBRICANT FOR METAL COMPONENTS | 2014 |
|
RU2554007C1 |
| PROTECTIVE LUBRICANT COMPOSITION | 2021 |
|
RU2779026C1 |
| BITUMEN-POLYMER PRIMER | 2017 |
|
RU2663134C1 |
| PROTECTIVE ANTICORROSION COMPOSITION | 2023 |
|
RU2817153C1 |
