FIELD: chemical engineering.
SUBSTANCE: method of regenerating anionites involves treatment of anionite with 1-2% solution of sulphuric acid H2SO4, washing anionite from sulphuric acid solution with desalted water followed by heating anionite with desalinated water to temperature of 40-50 °C. Anionite is treated with 4% caustic soda solution NaOH, held in caustic soda solution for 60-90 minutes and then washed with desalinated water with gradual reduction of the water temperature to the initial value.
EFFECT: invention enables complete purification of anionites from iron-containing and silicon-containing complexes and organic compounds, increases dynamic exchange capacity of anionites after regeneration thereof.
1 cl, 2 tbl, 6 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PRESERVING AND STORING CATION-EXCHANGE RESINS IN DESALTING PLANT | 2024 |
|
RU2826722C1 |
| METHOD OF REMOVING ORGANIC AND INORGANIC ACIDS FROM REACTION MASS OF DECOMPOSITION OF ISOPROPYL BENZENE HYDROPEROXIDE | 2014 |
|
RU2570203C1 |
| IONITE REGENERATION METHOD | 0 |
|
SU937338A1 |
| METHOD FOR CONDUCTING WATER-CHEMICAL REGIME AND REGENERATION OF BAROMEMBRANE WATER TREATMENT PLANT USING UNIFIED CORRECTION AND WASHING COMPOSITION | 2020 |
|
RU2753350C1 |
| METHOD OF WATER TREATMENT | 0 |
|
SU1830052A3 |
| METHOD OF REGENERATION OF ION EXCHANGERS | 0 |
|
SU1407535A1 |
| METHOD OF DESALTING WATER | 1991 |
|
RU2072326C1 |
| WATER DEMINERALISATION METHOD | 2008 |
|
RU2361819C1 |
| METHOD OF EXTRACTING STIBIUM AND ARSENIUM FROM SOLUTION OF GOLD-CONTAINING CONCENTRATE BIOLEACH SOLUTIONS | 2009 |
|
RU2410454C1 |
| SACCHAROSE-CONTAINING SOLUTION PURIFICATION METHOD | 2003 |
|
RU2247153C1 |
