FIELD: processes for producing nuclear-pure zirconium, namely processes for purifying zirconium from hafnium, possibly in ore-processing plants and in nuclear industry.
SUBSTANCE: zirconium and hafnium separation process comprises steps of preparing aqueous solution of initial mixture containing salts of zirconium and hafnium; further multiple separation by crystallization of zirconium salts from saturated solution of hafnium; before crystallization providing generation of gaseous hydrates in order to remove excess solvent from solution due to saturating solution with hydrate-generating gas at lowered temperature.
EFFECT: lowered energy consumption for separating zirconium and hafnium, elimination of using chemical reagents for such process.
4 cl, 5 tbl, 5 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PURIFICATION OF THE WATER | 2006 |
|
RU2311347C2 |
| METHOD FOR PURIFYING ZIRCONIUM AGAINST HAFNIUM | 1996 |
|
RU2104947C1 |
| METHOD OF PRODUCING GAS HYDRATES BY CONDENSATION OF NANOCLUSTERS | 2018 |
|
RU2718795C2 |
| METHOD AND APPARATUS FOR FORMING FROST WORK | 2010 |
|
RU2437773C1 |
| METHOD OF CRYSTALLIZING GASOHYBRIDS | 0 |
|
SU1421360A1 |
| METHOD FOR GAS HYDRATES CRYSTALLIZATION | 0 |
|
SU1799286A3 |
| METHOD OF DETERMINING CONTENT OF PORE WATER IN EQUILIBRIUM WITH GAS HYDRATE IN DISPERSION MEDIA (VERSIONS) | 2008 |
|
RU2391650C1 |
| METHOD OF CLEANING NATURAL GAS | 2004 |
|
RU2288774C2 |
| PROCESS STAGE FOR SEPARATION AND REFINING TETRA-FLUORIDES OF ZIRCONIUM AND HAFNIUM | 2010 |
|
RU2434957C2 |
| METHOD OF OBTAINING FINE-DISPERSED AQUEOUS EMULSIONS | 0 |
|
SU1411013A1 |
