FIELD: rare metal technologies.
SUBSTANCE: method comprises sorption of rhenium on a sorption material, which is chitosan-impregnated carbonaceous fibrous material with well developed surface. Sorption material is prepared via electrochemical treatment of carbonaceous fibrous material in 0.05-0.5% solution of chitosan in dilute hydrochloric acid in presence of sodium chloride as background electrolyte under conditions of anode polarization within a range of values from immersion potential to potential 1.5 v against silver chloride reference electrode. Desorption of rhenium is accomplished with 7-10% ammonia solution.
EFFECT: enhanced rhenium recovery efficiency due to use of sorbent combining sufficient sorption capacity with improved kinetic and environmental characteristics.
3 cl, 2 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| RHENIUM DESORPTION PROCESS | 2006 |
|
RU2321615C2 |
| METHOD OF PRODUCTION OF COMPOSITE SORPTION MATERIALS | 2004 |
|
RU2281160C1 |
| METHODS FOR PRODUCTION AND PURIFICATION OF BOVINE SERUM ALBUMIN | 2005 |
|
RU2289588C2 |
| METHOD FOR EXTRACTING RHENIUM FROM WATER SOLUTIONS | 2016 |
|
RU2637452C1 |
| PRODUCTION PROCESS OF A SORPTION MATERIAL | 2017 |
|
RU2645131C1 |
| METHOD OF PRODUCING SORBENT, SELECTIVE TOWARDS CAESIUM RADIONUCLIDES (VERSIONS) | 2009 |
|
RU2412757C1 |
| METHOD OF SORPTION CLEANING OF AQUEOUS MEDIA FROM ORGANIC SUBSTANCES AND IONS OF HEAVY METALS | 2018 |
|
RU2689616C1 |
| METHOD OF REMOVING STRONTIUM AND CALCIUM IONS FROM AQUEOUS SOLUTIONS (OPTIONS) | 2002 |
|
RU2223232C1 |
| METHOD OF PRODUCTION OF NON-ORGANIC SORBENT BASED ON MANGANESE OXIDES | 2002 |
|
RU2218209C1 |
| SUITABLE FOR REGENERATION COMPOSITE ADSORPTION CARBON MATERIAL AND METHOD OF REGENERATION THEREOF | 2000 |
|
RU2171139C1 |
