FIELD: chemistry.
SUBSTANCE: invention relates to corrosion and scaling inhibitors and can be used in treatment of aqueous media of heat supply systems, water circulation supply of chemical, petrochemical, metallurgical, industrial and power plants, as well as in municipal services. Inhibitor includes phosphonates of alkali metals, phosphonocarboxylic acids and water-soluble polymers, wherein phosphonates of alkali metals are oxyethylene diphosphonates and/or nitrilotrimethyl phosphonates, and/or aminomethylene phosphonates and/or methylene diphosphonates and/or hexamethylenediamine tetramethylene phosphonates of alkali metals in following proportions, wt%: phosphonates of alkali metals 5-50, phosphonocarboxylic acids 5-45, water-soluble polymers 1-10.
EFFECT: invention allows to create corrosion and scaling inhibitor to aqueous media with high efficiency of preventing scaling and corrosion protection of process equipment made from steel and brass and simultaneously characterised by low content of phosphorus.
4 cl, 2 tbl, 31 ex
| Title | Year | Author | Number |
|---|---|---|---|
| INHIBITOR OF CORROSION AND SCALE FORMATION FOR USE IN SYSTEMS OF REVERSE COOLING OF POWER PLANTS OR OTHER INDUSTRIAL ENTERPRISES | 2019 |
|
RU2702542C1 |
| CORROSION INHIBITOR | 2010 |
|
RU2458184C1 |
| COMPOSITION FOR PREVENTING INORGANIC DEPOSITS | 2014 |
|
RU2564329C1 |
| COMPOSITION FOR PREVENTING INORGANIC DEPOSITS | 2012 |
|
RU2505623C1 |
| CORROSION AND SALT FORMATION INHIBITOR (VERSIONS) | 2003 |
|
RU2256727C1 |
| LOW-MOLECULAR COPOLYMERS OF MONOETHYLENICALLY UNSATURATED CARBOXYLIC ACIDS AND THEIR USE AS SCALING INHIBITORS IN WATER ROTATION SYSTEMS | 2017 |
|
RU2660651C1 |
| POLYMER MIXTURES AS DEPOSIT INHIBITORS IN WATER SUPPLY SYSTEMS | 2012 |
|
RU2608409C2 |
| METHOD FOR PRODUCING POLYMER SCALING INHIBITOR FOR WATER RECYCLING SYSTEMS | 2020 |
|
RU2752736C1 |
| UNIVERSAL REAGENT FOR DESTABILIZING WATER-OIL EMULSIONS AND SUSPENSIONS | 2017 |
|
RU2685134C2 |
| CORROSION AND SCALING INHIBITOR | 2020 |
|
RU2732844C1 |
