FIELD: production of inhibited hydrochloric acid used for pickling of metals in metal working industry and oil producing industry; cleaning of equipment in power engineering.
SUBSTANCE: proposed corrosion inhibitor contains the following components, mass-%: urotropin, 10.0-40.0; copper sulfate, 0.1-2.0; 1-naphthylamine hydrochloride or 1-naphthylamine, 0.2-2.0; aniline, 1.0-10.0; monoethanolamine, 5.0-15.0; the remainder being water.
EFFECT: enhanced protection of carbon steel against corrosion in hydrochloric acid; avoidance of coppering of metal surfaces.
1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| INHIBITOR OF CARBON STEEL CORROSION IN ACID MEDIUM AND METHOD OF PRODUCTION OF INHIBITED HALOID-HYDROGEN ACID | 2008 |
|
RU2383658C1 |
| METAL CORROSION INHIBITOR IN SULFURIC, HYDROCHLORIC ACID ORTHOPHOSPHORIC ACIDS | 1999 |
|
RU2170288C2 |
| CORROSION INHIBITOR IN SULFURIC, HYDROCHLORIC AND ORTHOPHOSPHORIC ACIDS | 2004 |
|
RU2265675C1 |
| METAL CORROSION INHIBITOR IN SULFURIC AND CHLOR-HYDROGENOUS ACIDS | 2007 |
|
RU2343226C1 |
| INHIBITOR OF CORROSION OF METALS IN SULPHURIC, HYDROCHLORIC AND ORTHOPHOSPHORIC ACIDS | 2009 |
|
RU2418099C1 |
| CORROSION INHIBITOR OF METALS IN SULFURIC, HYDROCHLORIC AND ORTHOPHOSPHOROUS ACIDS | 2001 |
|
RU2203981C2 |
| ACID CORROSION INHIBITOR, MAINLY HYDROCHLORIC ACID CORROSION (VERSIONS) | 2006 |
|
RU2303082C1 |
| INHIBITOR FOR CORROSION OF METALS IN SULPHURIC, HYDROCHLORIC AND ORTHOPHOSPHORIC ACID | 2006 |
|
RU2330123C1 |
| METAL CORROSION INHIBITOR IN SULFURIC AND HYDROCHLORIDE ACIDS | 1998 |
|
RU2173734C2 |
| CORROSION INHIBITOR FOR PROTECTION OF METALS IN SULFURIC, HYDROCHLORIC AND SULFAMIC ACIDS | 2006 |
|
RU2296814C1 |
