the procedure of precipitation of nuclear fuel material with peroxide of hydrogen peroxide from acidic solutions, and products obtained

摘要

Pptn. of peroxides of nuclear fuel and breeder materials, esp. U, Th and/or Pu, with H2O2 from solns. of the corresp. metal salt(s) in HNO3 or HF is carried out at pH max. 0.5 (0.05-0.5), then the filtrate is conc. by evapn. and recycled to the pptn. soln. No ammonium salts are formed and the ppte. gives a UO2 or mixed oxide powder with as good pressing and sintering properties as possible after calcination and redn.