Published November 28, 2025
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Granules of SIV, AM-4, and ETS-4 Titanosilicate Sorbents Based on the Products of Processing Ti-Bearing Raw Materials of the Kola Peninsula and Their Sorption Behavior with Respect to 137Cs and 90Sr Radionuclides

Creators

  • 1. Nanomaterials Research Center, Kola Science Center, Russian Academy of Sciences, Fersman Street 14, 184200 Apatity, Russia
  • 2. Russian Academy of Sciences
  • 3. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninskii Avenue 31, bldg. 4, 119071 Moscow, Russia
  • 4. Geological Institute, Kola Science Center, Russian Academy of Sciences, Fersman Street 14, 184200 Apatity, Russia
  • 5. I.V. Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Science Center, Russian Academy of Sciences, 26a Fersman Street, 184209 Apatity, Russia

Description

The paper focuses on a transition from studying synthetic analogs of rare titanosilicate minerals (lintisite, ivanyukite, and zorite) in the powdery state to investigating their new granulated forms. Five different methods for granulating titanosilicate samples are tested: fluidized bed and spray dry granulation, spray bed granulation, screw rotor granulation, and manual pressing of paste through a stainless-steel sieve with a 1 mm mesh size. The results of studying sorption of trace amounts of 137Cs and 90Sr radionuclides from model solutions of various compositions onto inorganic sorbents in powdered and granulated forms are presented.
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