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Palygorskite ceramic solidified body for solidifying radioactive iodine as well as preparation method and application of palygorskite ceramic solidified body
The invention belongs to the technical field of radioactive iodine waste treatment, and discloses a palygorskite ceramic solidified body for solidifying radioactive iodine as well as a preparation method and application of the palygorskite ceramic solidified body. The chemical formula of the ceramic solidified body is Mg5Si8O20-XIX (OH) 2 (H2O) 4. 4H2O, x is 1-20, palygorskite is added into a sodium thiosulfate solution to be stirred and refluxed at the temperature of 70-90 DEG C, then radioactive silver iodide is added to be heated, stirred and dried to obtain palygorskite powder adsorbing radioactive iodide ions, deionized water is added to be mixed, the pressure of 200-300 MPa is applied to the obtained pasty mixture, sintering is conducted at the uniaxial pressure of 500-700 MPa and the temperature of 150-200 DEG C, and the ceramic solidified body is obtained. And demolding, drying, annealing at 600-700 DEG C, and naturally cooling to obtain the product. The ceramic solidified body provided by the invention has stable chemical properties and low cost, the content of solidified radioactive iodine is 13-83 wt%, and the ceramic solidified body can be used for disposing radioactive iodine wastes.
本发明属于放射性碘废物处理技术领域，公开了一种固化放射性碘的坡缕石陶瓷固化体及其制备方法和应用。该陶瓷固化体的化学式为Mg5Si8O20‑XIX(OH)2(H2O)4·4H2O，其中，x为1～20，是将坡缕石加入硫代硫酸钠溶液中70～90℃搅拌回流，再加入放射性碘化银加热搅拌，干燥得到吸附放射性碘离子的坡缕石粉体，再加入去离子水混料，对所得糊状混合物施加200～300MPa压力，在单轴压力500～700MPa，150～200℃烧结，经脱模干燥，在600～700℃退火，自然冷却后制得。本发明的陶瓷固化体具有稳定的化学性质、成本低，可固化的放射性碘的含量为13～83wt％，可用于处置放射性碘废物。
Palygorskite ceramic solidified body for solidifying radioactive iodine as well as preparation method and application of palygorskite ceramic solidified body
The invention belongs to the technical field of radioactive iodine waste treatment, and discloses a palygorskite ceramic solidified body for solidifying radioactive iodine as well as a preparation method and application of the palygorskite ceramic solidified body. The chemical formula of the ceramic solidified body is Mg5Si8O20-XIX (OH) 2 (H2O) 4. 4H2O, x is 1-20, palygorskite is added into a sodium thiosulfate solution to be stirred and refluxed at the temperature of 70-90 DEG C, then radioactive silver iodide is added to be heated, stirred and dried to obtain palygorskite powder adsorbing radioactive iodide ions, deionized water is added to be mixed, the pressure of 200-300 MPa is applied to the obtained pasty mixture, sintering is conducted at the uniaxial pressure of 500-700 MPa and the temperature of 150-200 DEG C, and the ceramic solidified body is obtained. And demolding, drying, annealing at 600-700 DEG C, and naturally cooling to obtain the product. The ceramic solidified body provided by the invention has stable chemical properties and low cost, the content of solidified radioactive iodine is 13-83 wt%, and the ceramic solidified body can be used for disposing radioactive iodine wastes.
本发明属于放射性碘废物处理技术领域，公开了一种固化放射性碘的坡缕石陶瓷固化体及其制备方法和应用。该陶瓷固化体的化学式为Mg5Si8O20‑XIX(OH)2(H2O)4·4H2O，其中，x为1～20，是将坡缕石加入硫代硫酸钠溶液中70～90℃搅拌回流，再加入放射性碘化银加热搅拌，干燥得到吸附放射性碘离子的坡缕石粉体，再加入去离子水混料，对所得糊状混合物施加200～300MPa压力，在单轴压力500～700MPa，150～200℃烧结，经脱模干燥，在600～700℃退火，自然冷却后制得。本发明的陶瓷固化体具有稳定的化学性质、成本低，可固化的放射性碘的含量为13～83wt％，可用于处置放射性碘废物。
Palygorskite ceramic solidified body for solidifying radioactive iodine as well as preparation method and application of palygorskite ceramic solidified body
一种固化放射性碘的坡缕石陶瓷固化体及其制备方法和应用
GUO WEIMING (author) / ZHAO YI (author) / SUN SHIKUAN (author) / AI QU (author) / CHEN YUANBIN (author) / LIN HUATAI (author)
2024-07-05
Patent
Electronic Resource
Chinese
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