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Method for preparing monodisperse uranium dioxide microspheres
The invention relates to a method for preparing monodisperse uranium dioxide microspheres, and belongs to the technical field of ceramic forming. According to the method, a uranium gel solution is broken into liquid drops with uniform size by utilizing the shearing force of silicone oil on the uranium gel solution of an internal gel method, and the monodisperse UO2 ceramic microspheres with good sphericity and uniform size are prepared. hexamethylenetetramine in the uranium gel solution is heated and decomposed in hot silicone oil to release ammonia, so that liquid drops are cured into gel microspheres, and the gel microspheres are washed, dried and sintered to obtain the monodisperse UO2 ceramic microspheres with good sphericity and uniform size. The size of the UO2 microspheres can be adjusted according to the flow rates of two injection pumps and the viscosity of the silicone oil, and the operation is very flexible and convenient.
本发明涉及一种制备单分散二氧化铀微球的方法，属于陶瓷成型技术领域。该方法利用硅油对内凝胶法的铀胶液的剪切力，使铀胶液破碎成一个个尺寸均一的液滴，制备出球形度好、尺寸均一的单分散UO陶瓷微球。其中铀胶液中的六次甲基四胺在热硅油受热分解放出氨，使液滴固化成凝胶微球，凝胶微球经过洗涤，干燥，烧结后即可得到球形度好，尺寸均一的单分散UO陶瓷微球。UO微球的大小可以根据两台注射泵的流速和硅油的粘度来进行调节，十分灵活方便。
Method for preparing monodisperse uranium dioxide microspheres
The invention relates to a method for preparing monodisperse uranium dioxide microspheres, and belongs to the technical field of ceramic forming. According to the method, a uranium gel solution is broken into liquid drops with uniform size by utilizing the shearing force of silicone oil on the uranium gel solution of an internal gel method, and the monodisperse UO2 ceramic microspheres with good sphericity and uniform size are prepared. hexamethylenetetramine in the uranium gel solution is heated and decomposed in hot silicone oil to release ammonia, so that liquid drops are cured into gel microspheres, and the gel microspheres are washed, dried and sintered to obtain the monodisperse UO2 ceramic microspheres with good sphericity and uniform size. The size of the UO2 microspheres can be adjusted according to the flow rates of two injection pumps and the viscosity of the silicone oil, and the operation is very flexible and convenient.
本发明涉及一种制备单分散二氧化铀微球的方法，属于陶瓷成型技术领域。该方法利用硅油对内凝胶法的铀胶液的剪切力，使铀胶液破碎成一个个尺寸均一的液滴，制备出球形度好、尺寸均一的单分散UO陶瓷微球。其中铀胶液中的六次甲基四胺在热硅油受热分解放出氨，使液滴固化成凝胶微球，凝胶微球经过洗涤，干燥，烧结后即可得到球形度好，尺寸均一的单分散UO陶瓷微球。UO微球的大小可以根据两台注射泵的流速和硅油的粘度来进行调节，十分灵活方便。
Method for preparing monodisperse uranium dioxide microspheres
一种制备单分散二氧化铀微球的方法
XU RUI (author) / MA JINGTAO (author) / HAO SHAOCHANG (author) / ZHAO XINGYU (author) / LI JIANJUN (author) / DENG CHANGSHENG (author) / LIU BING (author)
2020-06-05
Patent
Electronic Resource
Chinese
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