FIELD: sorbents.
SUBSTANCE: invention relates to sorbents based on metal oxyhydrate gels, which can be used in sorption technologies to recover metals from process solutions, to treat waste waters originated from hydrometallurgical enterprises, and to prepare pure substance in chemical industry. Process of invention comprises following stages: alkali precipitation of metal oxyhydrate, ripening of precipitate, separation. Drying, and granulation of sorbent. Granulated sorbent is further exposed for 2 h to magnetic field 980 oersted, after which sorbent is kept for 7 days in air at room temperature.
EFFECT: considerably increased sorption capacity.
3 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PREPARATION SORBENT FROM METAL OXYHYDRATE GELS | 2007 |
|
RU2326728C1 |
| METHOD FOR SORBENT PREPARATION BASED ON GELS OF HEAVY METALS OXYHYDRATES | 2008 |
|
RU2359752C1 |
| METHOD OF PRODUCING SORBENTS BASED ON MIXED GELS OF ZIRCONIUM OXYHYDRATE AND SILICIC ACID | 2010 |
|
RU2448769C1 |
| METHOD FOR ELECTRIC CURRENT GENERATION IN OXYHYDRATE GEL SYSTEMS | 2006 |
|
RU2300161C1 |
| METHOD OF PRODUCTION OF GRANULATED INORGANIC SORBENTS ON BASE OF OXYHYDRATES OF METALS | 2004 |
|
RU2261757C1 |
| METHOD OF PREPARING SORBENT | 1994 |
|
RU2082494C1 |
| METHOD OF PREPARING FERRIC HYDROXYHYDRATE-BASED SORBENT | 1994 |
|
RU2073562C1 |
| METHOD OF PREPARING SORBENT | 1994 |
|
RU2082495C1 |
| SILICIC ACID XEROGEL-BASED SORBENTS PREPARATION METHOD | 2005 |
|
RU2296617C1 |
| METHOD OF PREPARING SORBENT | 1994 |
|
RU2082493C1 |
