Preparation method of modified diopside glass solidified body containing molybdenum-containing radioactive waste

• Main Authors: HUO JICHUAN, HUO YONGLIN, ZHANG XINGQUAN, JIANG QIN
• Format: Patent
• Language: Chinese; English
• Published: 31.05.2022
• Subjects: DECONTAMINATION ARRANGEMENTS THEREFOR; NUCLEAR ENGINEERING; NUCLEAR PHYSICS; PHYSICS; PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL

The invention discloses a preparation method of a modified diopside glass solidified body containing molybdenum-containing radioactive waste, which comprises the following steps: carrying out ball milling on diopside powder, borax and simulated molybdenum-containing radioactive waste by a ball milling method, and uniformly mixing to obtain a mixture; and heating the mixture to 1200-1250 DEG C, preserving heat and melting for 3-4 hours, then rapidly pouring on a preheated carbon plate, quenching and forming, and finally cooling to obtain the modified diopside glass solidified body. The diopside is modified by borax, so that the firing temperature of the diopside glass can be effectively reduced. The maximum ladle capacity of the modified diopside glass to Mo is 9wt%. Through a leaching test, the leaching rate of Mo in a leach solution of the modified diopside glass solidified body for 28 days is 1.8 * 10 <-5 > g/(m < 2 >. D), which indicates that the modified diopside glass solidified body has good chemical st