FIELD: corrosion protection.
SUBSTANCE: invention relates to protecting metals from corrosion using inhibitors and can be used to protect steel equipment from corrosion during acid treatments, metal pickling, scale removal, and also in the presence of hydrogen sulphide in a corrosive environment. The use of N-(4,5-dihydro-1H-imidazol-2-yl)-5-heptyl-1,3,4-thiadiazol-2-amine, with the formula
as a corrosion inhibitor for St3 steel in the concentration range of 50-200 mg/l in a 15% aqueous HCl solution, as well as in a 0.1 M HCl solution in the presence of 300 mg/l hydrogen sulphide.
EFFECT: reduced corrosion rate of St3 steel.
1 cl, 2 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| CORROSION INHIBITOR FOR LOW CARBON STEEL IN 15% HYDROCHLORIC ACID SOLUTION | 2023 |
|
RU2812064C1 |
| INHIBITOR OF HCl ACID CORROSION OF STEEL | 2023 |
|
RU2812065C1 |
| ACID CORROSION INHIBITOR OF STEEL | 2023 |
|
RU2812061C1 |
| HYDROGEN SULFIDE CORROSION INHIBITOR OF STEEL | 2023 |
|
RU2809103C1 |
| STEEL CORROSION INHIBITOR IN HYDROCHLORIDE ENVIRONMENTS | 2023 |
|
RU2808983C1 |
| STEEL CORROSION INHIBITOR | 2023 |
|
RU2810477C1 |
| INHIBITOR OF HYDROCHLORIC ACID CORROSION OF STEEL | 2021 |
|
RU2776118C1 |
| APPLICATION OF 5-(2,4-DIMETHOXYPHENYL)-1,3,4-THIADIAZOLYL AMIDE OF 2,4-DIMETHOXYBENZOIC ACID AS INHIBITOR OF HYDROCHLORIC ACID CORROSION OF STEEL | 2021 |
|
RU2757778C1 |
| STEEL CORROSION INHIBITOR BASED ON SUBSTITUTED IMIDAZOLINE | 2023 |
|
RU2805531C1 |
| ACID CORROSION INHIBITOR OF STEEL ST3 | 2023 |
|
RU2821183C1 |
