| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention pertains to sorption technologies of extracting radionuclides from water media and can be used for purifying waste solutions of radiochemical production, natural water solutions from dangerous radioactive contaminations by extracting them with a sorbent. The proposed method provides for extracting radionuclides of uranium, plutonium, caesium, strontium from water solutions through sorption by using a sorbent from a non-magnetic fraction of a product of recycling metallurgic slag, containing the following: calcium silicate Ca2SiO4, iron-lithium oxide Li9,28Fe21,34O32, coesite SiO2, ferrous grossularite Ca3Al1,332Fe0,668Si3O12, ringwoodite Fe2SiO4, sodium aluminium silicate Na14,88Al15,26Si32,74O96. The process is carried out at pH not less than 2 and final pH value not more than 14. ^ EFFECT: extraction of radionuclides from water solutions, with use of a sorbent made from cheap inorganic material, which has high distribution coefficient relative the whole range of radionuclides. ^ 1 tbl, 5 ex |
