FIELD: chemistry.
SUBSTANCE: invention relates to production of sorption materials for extracting gold ions from hydrochloric acid solutions. Disclosed is a method of producing a sorbent containing crown-ester on a carrier, intended for sorption of gold from hydrochloric acid solutions with concentration of hydrochloric acid of 0.1–0.3 mol/l. Method envisages preparation of a carrier, treatment of the prepared carrier with benzo-15-crown-5 solution in chloroform or methanol in the presence of nitrobenzene as a diluent or without a diluent, distillation of the solvent and drying of the obtained sorbent.
EFFECT: invention enables to obtain a sorbent with an increased gold distribution coefficient.
1 cl, 2 dwg, 5 tbl, 5 ex
| Title | Year | Author | Number |
|---|---|---|---|
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|
RU2636482C1 |
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|
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| METHOD FOR PRODUCING GRANULATED SOLID EXTRACTION SOLUTIONS ON THE BASE OF MACROCYCLE POLYETHER | 1992 |
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|
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| RADIONUCLIDE EXTRACTION BY CROWN-ESTER CONTAINING EXTRACTANTS | 2004 |
|
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| METHOD OF NOBLE METALS EXTRACTION | 1992 |
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| METHOD OF PREPARING COPPER SELECTIVE SORBENT | 1993 |
|
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| METHOD OF DRAWING GOLD FROM NITROGEN-CONTAINING COMPLEXING SORBENTS | 0 |
|
SU1101295A1 |
| METHOD OF SORBENT ACTIVATION | 0 |
|
SU1133832A1 |
