FIELD: sorbents.
SUBSTANCE: invention relates to sol-gel technology of preparing hydrated zirconium dioxide-based sorbents comprising following stages: zirconium chloride solution electrolysis to form zirconium hydroxide sol; introducing water-soluble organic positively charged cationic polymer or non-charged nonionic polymer into zirconium hydroxide sol; dispersing mixed sol in gel-forming medium to form gel spheres; washing and drying gel spheres; said organic cationic polymer being selected from polyethyleneimine, polymer containing primary, secondary, or tertiary amino groups, and other compounds, and said organic nonionic polymer bring selected from polyvinyl alcohol, polyethyleneoxide, and other compounds.
EFFECT: increased selectivity and mechanical strength of sorbents.
7 cl, 3 tbl, 9 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PREPARING SPHERICALLY GRANULATED ZIRCONIUM HYDROXIDE OR OXIDE-BASED MATERIALS | 2003 |
|
RU2235686C1 |
| GRANULATED SORBENT ON BASE OF HYDRATED ZIRCONIUM DIOXIDE | 2005 |
|
RU2287363C1 |
| CHROMATOGRAPHIC MATERIAL AND METHOD FOR ITS PRODUCTION | 1992 |
|
RU2032461C1 |
| INORGANIC SPHERIC GRANULATED HYDRATED ION-EXCHANGE MATERIAL AND METHOD FOR ITS PRODUCTION | 1992 |
|
RU2034645C1 |
| INORGANIC SPHERICALLY GRANULATED COMPOSITE ZIRCONIUM HYDROXIDE-BASED SORBENT AND METHOD OF PREPARATION THEREOF | 1996 |
|
RU2113024C1 |
| GRANULATED INORGANIC SORBENT AND METHOD FOR ITS PRODUCTION | 1992 |
|
RU2032460C1 |
| INORGANIC SPHEROGRANULATED POROUS SORBENT BASED ON ZIRCONIUM HYDRIDE AND METHODS OF ITS PRODUCTION | 1994 |
|
RU2064825C1 |
| METHOD FOR PRODUCING A GRANULATED INORGANIC SORBENT | 2020 |
|
RU2756163C1 |
| 0 |
|
SU1776432A1 | |
| SORPTION AND FILTRATING MATERIAL FOR PURIFYING HALF-FINISHED WINE PRODUCT, ALCOHOL DRINKS AND GRAPE JUICES | 1992 |
|
RU2034646C1 |
