FIELD: scale removal materials.
SUBSTANCE: invention relates to compositions for removal of scale from surfaces of pipes, heat exchangers, and process apparatuses. Composition of invention contains, wt %: sodium, potassium, or ammonium pyrosulfate or persulfite 0.09-10.0, polyphenol compounds from conifer bark 0.003-2.0, urotropin 0.01-4.0, nonionic surfactant 0.0015-0.009, polyhexamethyleneguanidine chloride 0.1-1.5, aqueous hydrochloric acid 2.0-15.0, and water - the balance.
EFFECT: accelerated scale dissolution and enhanced corrosion protection.
1 tbl, 6 ex
| Title | Year | Author | Number |
|---|---|---|---|
| COMPOSITION FOR REMOVAL OF SCALE AND DEPOSIT | 2005 |
|
RU2324661C2 |
| COMPOSITION FOR REMOVING DEPOSITS AND SCUM FROM INNER SURFACES OF HEAT-EXCHANGE EQUIPMENT | 2007 |
|
RU2331591C1 |
| METHOD OF SCALE REMOVAL AND PROTECTION AGAINST SALT DEPOSIT AND CORROSION | 2007 |
|
RU2339586C1 |
| DESCALING COMPOSITION | 2003 |
|
RU2238915C1 |
| SCALE REMOVAL COMPOSITION | 2014 |
|
RU2554583C1 |
| SCALE REMOVAL COMPOSITION | 2013 |
|
RU2515829C1 |
| PREPARATION FOR SCALING AND CLEANING OF INTERNAL SURFACES OF HEAT POWER AND PROCESS EQUIPMENT FROM SCALING DEPOSITS | 2020 |
|
RU2738662C1 |
| METHOD FOR CLEANING INTERNAL SURFACES OF HEAT POWER AND PROCESS EQUIPMENT FROM SCALE DEPOSITS WITH THE DESCALER | 2020 |
|
RU2735015C1 |
| COMPOSITION FOR DISSOLUTION / REMOVAL OF HARDNESS SALTS | 2019 |
|
RU2715205C1 |
| COMPOSITION FOR DESCALING HEAT-EXCHANGE SURFACES | 2010 |
|
RU2443637C2 |
