FIELD: chemistry.
SUBSTANCE: invention pertains to protection of metals from acid corrosion using an inhibitor and can be used for pickling metals in acids and acid treatment equipment in the energy and food industry. The inhibitor contains the following components in the given percentage mass ratios: product of condensation of an amine with aldehyde, in form of n-dimethylaminosalicyl-n-bromo-aniline 18.1-23.9, N-(heptacarbamoil)imidazolidinone-2 11.9-13.7, methylethyloctylphenyl-ammonium iodide 16.4-27.3, urotropine 40.9-47.8.
EFFECT: introduction of the inhibitor in the said acids increases protection from corrosion of the mentioned metals and lowers reduces hydrogenation of steel.
2 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METAL CORROSION INHIBITOR IN SULFURIC, CHLORIDE HYDRIDE AND ORTHOPHOSPHORIC ACID | 2007 |
|
RU2352687C1 |
| CORROSION INHIBITOR IN SULFURIC, HYDROCHLORIC AND ORTHOPHOSPHORIC ACIDS | 2004 |
|
RU2265675C1 |
| INHIBITING AGENT FOR INHIBITING CORROSION OF METALS IN SULFURIC, HYDROCHLORIC AND ORTHOPHOSPHORIC ACIDS | 2006 |
|
RU2320777C1 |
| METAL CORROSION INHIBITOR IN SULFURIC AND CHLOR-HYDROGENOUS ACIDS | 2007 |
|
RU2343226C1 |
| CORROSION INHIBITOR FOR PROTECTION OF METALS IN SULFURIC, HYDROCHLORIC AND ORTHOPHOSPHORIC ACIDS | 2006 |
|
RU2296816C1 |
| INHIBITOR OF METAL CORROSION IN SULPHURIC AND HYDROCHLORIC ACIDS | 2010 |
|
RU2456374C1 |
| INHIBITOR OF METAL CORROSION IN SULFURIC, HYDROCHLORIC, AND SULFAMIC ACIDS | 2001 |
|
RU2190696C1 |
| INHIBITOR OF METAL CORROSION IN HYDROCHLORIC AND SULFURIC ACIDS | 2002 |
|
RU2210627C1 |
| METAL CORROSION INHIBITOR IN SULFURIC AND HYDROCHLORIDE ACIDS | 1998 |
|
RU2173734C2 |
| METAL CORROSION INHIBITOR IN HYDROCHLORIC AND SULFURIC ACIDS | 1993 |
|
RU2114214C1 |
