FIELD: chemistry.
SUBSTANCE: invention pertains to the method of obtaining an inhibitor of precipitation of mineral salts, The inhibitor is obtained by reaction of hexamethylenediamine and ammonium chloride with formaldehyde and phosphorous acid in a medium of diluted hydrochloric acid at high temperature with subsequent neutralisation of the obtained solution using sodium hydroxide to pH of 6.5±1.0. The process is carried out with molar ratio of hexamethylenediamine to ammonium chloride of 1:3-6.
EFFECT: high inhibition effect with stabilised treatment of water.
1 cl, 1 tbl, 6 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PREPARING INHIBITOR OF MINERAL SALT DEPOSITS | 1998 |
|
RU2133751C1 |
| POLYALKYLENE POLYAMINE POLYMETHYLPHOSPHONIC ACID SYNTHESIS METHOD | 2010 |
|
RU2434875C1 |
| COMPOSITION FOR INHIBITING SCALING AND CORROSION OF METALS IN WATER CONSUMPTION SYSTEMS | 2008 |
|
RU2398050C1 |
| ORGANOPHOSPHONATE COMPOSITION FOR STABILIZATION WATER TREATMENT IN WATER USE SYSTEMS | 2020 |
|
RU2745822C1 |
| METHOD OF PRODUCING MINERAL SALT DEPOSITION INHIBITOR | 2008 |
|
RU2378281C1 |
| METHOD OF PREPARING INHIBITOR OF MINERAL SALT DEPOSITS | 2000 |
|
RU2168514C1 |
| INHIBITION OF FORMING DEPOSITS USING N-R-IMINOBIS (METHYLPHOSPHONIC) ACIDS AND METHOD OF PRODUCING INHIBITOR | 2016 |
|
RU2656019C2 |
| COMPOSITION FOR REMOVING HIGH-TEMPERATURE MINERAL SALT DEPOSITS FROM THERMAL POWER EQUIPMENT | 2000 |
|
RU2177458C1 |
| METHOD OF PREVENTING SCALING, CORROSION AND BIOGROWTH IN WATER SUPPLY SYSTEMS | 2009 |
|
RU2409523C2 |
| PROCESS FOR PREPARING MINERAL SALT DEPOSITION INHIBITOR | 0 |
|
SU1796631A1 |
