| 摘要 |
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 |
