FIELD: protection of metals from corrosion.
SUBSTANCE: invention can be used for corrosion protection of gas and oil field equipment, as well as for etching metals and removing scale. Disclosed is the use of N-(1,3-dithiolan-2-ylidene)-5-(2,4,6-trimethylphenyl)-1,3,4-thiadiazol-2-amine of formula
as corrosion inhibitor 50–200 mg/l of low-carbon steel St3 in hydrochloric acid solution in the range of concentrations of 5–15 % at temperature of 25 °C.
EFFECT: reduction of corrosion rate of steel St3 from 13,2–3,3 mm/year in non-inhibited solution to 0,2–0,1 mm/year depending on concentration of inhibitor.
1 cl, 1 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
| ACID CORROSION INHIBITOR OF STEEL | 2023 |
|
RU2812061C1 |
| INHIBITOR OF HCl ACID CORROSION OF STEEL | 2023 |
|
RU2812065C1 |
| CORROSION INHIBITOR FOR LOW CARBON STEEL IN 15% HYDROCHLORIC ACID SOLUTION | 2023 |
|
RU2812064C1 |
| STEEL CORROSION INHIBITOR | 2023 |
|
RU2810477C1 |
| HYDROGEN SULFIDE CORROSION INHIBITOR OF STEEL | 2023 |
|
RU2809103C1 |
| STEEL CORROSION INHIBITOR IN HYDROCHLORIDE ENVIRONMENTS | 2023 |
|
RU2808983C1 |
| INHIBITOR OF HCL ACID CORROSION OF STEEL | 2023 |
|
RU2806257C1 |
| STEEL CORROSION INHIBITOR BASED ON SUBSTITUTED IMIDAZOLINE | 2023 |
|
RU2805531C1 |
| 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 |
| INHIBITOR OF HYDROCHLORIC ACID CORROSION OF STEEL | 2021 |
|
RU2776118C1 |
