FIELD: preparation of selective sorbents for recovery toxic and valuable components from aqueous media. SUBSTANCE: process comprises sorption of semifunctional compound on macroporous anionites followed by condensation thereof with formaldehyde within anionite pores. Polyfunctional compound includes soluble metal sulfides or hydrosulfides or gaseous hydrogen sulfide. Anionites are macroporous polymerization or polycondensation type containing quaternary ammonium base groups and/or primary and secondary amino groups. Process makes it possible to prepare sorbent for selective and effective recovery of mercury and silver ions from various aqueous media. EFFECT: higher efficiency.
Title | Year | Author | Number |
---|---|---|---|
METHOD FOR PRODUCING SORBENT OF RARE-EARTH METALS | 2014 |
|
RU2579133C1 |
METHOD OF PRODUCING RUTHENIUM SORBENT | 2016 |
|
RU2605255C1 |
METHOD FOR OBTAINING SORBENT FOR RECOVERING SELENIUM, TELLURIUM | 2017 |
|
RU2660148C1 |
METHOD OF PREPARING POLYMER ORGANOMINERAL SORBENT | 1994 |
|
RU2082496C1 |
METHOD FOR SORPTION EXTRACTION OF RARE-EARTH ELEMENTS IN PRESENCE OF FLUORIDE IONS | 2023 |
|
RU2824510C1 |
METHOD OF PRODUCING COMPLEX-FORMING IONITE | 0 |
|
SU1479465A1 |
COMPOUND BASED ON STYRENE AND DIVINYLBENZENE MACROPOROUS COPOLYMER AS IMMUNOSORBENT FOR REMOVING DIPHTHERIA TOXIN FROM ORGANISM BIOLOGICAL FLUIDS | 1995 |
|
RU2081170C1 |
METHOD FOR RECOVERY OF OSMIUM FROM ACID SOLUTIONS | 1993 |
|
RU2057072C1 |
METHOD OF PREPARING MODIFIED SORBENT | 1996 |
|
RU2105015C1 |
METHOD OF EXTRACTING RHENIUM FROM URANIUM SOLUTIONS | 2016 |
|
RU2627838C1 |
Authors
Dates
1997-06-10—Published
1995-05-05—Filed