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Effect of Anti‐Encrustation Additives on Zirconium Molybdate Hydrate
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2020-03-31 , DOI: 10.1002/ceat.201900638 Risako Abe 1 , Izumi Hirasawa 1 , Yasunori Miyazaki 2 , Masayuki Takeuchi 2
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2020-03-31 , DOI: 10.1002/ceat.201900638 Risako Abe 1 , Izumi Hirasawa 1 , Yasunori Miyazaki 2 , Masayuki Takeuchi 2
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Anti‐encrustation additives were mainly investigated in nitric acid solution with zirconium (Zr), molybdenum (Mo), and tellurium (Te) to prevent the encrustation of zirconium molybdate hydrate (ZMH). The ZMH generated by reaction crystallization of Mo and Zr as main fission products has a high adhesion property in spent nuclear fuel reprocessing. In addition, it is reported that Te, which is also one of the fission products, precipitates together with ZMH. Encrustation of precipitates containing Te was effectively prevented by adding molybdenum trioxide (MoO3) crystals as an anti‐encrustation reagent. The encrustation amount was found to be larger than that under the condition of only Zr and Mo without Te. Consequently, it was suggested that the high adhesion property of Te affected the encrustation amount of ZMH.
中文翻译：
防结垢添加剂对钼酸锆水合物的影响
防结壳添加剂主要是在硝酸溶液中与锆（Zr），钼（Mo）和碲（Te）一起研究的，以防止水合钼酸锆（ZMH）结壳。Mo和Zr作为主要裂变产物的反应结晶生成的ZMH在乏核燃料后处理中具有很高的粘附性。另外，据报道，也是裂变产物之一的Te与ZMH一起沉淀。通过添加三氧化钼（MoO 3）可有效防止含Te的沉淀物结壳。）晶体作为防结皮剂。发现包壳量大于在仅Zr和Mo而没有Te的条件下的包壳量。因此，表明Te的高粘附性影响了ZMH的结壳量。
更新日期：2020-03-31
中文翻译：
防结垢添加剂对钼酸锆水合物的影响
防结壳添加剂主要是在硝酸溶液中与锆（Zr），钼（Mo）和碲（Te）一起研究的，以防止水合钼酸锆（ZMH）结壳。Mo和Zr作为主要裂变产物的反应结晶生成的ZMH在乏核燃料后处理中具有很高的粘附性。另外，据报道，也是裂变产物之一的Te与ZMH一起沉淀。通过添加三氧化钼（MoO 3）可有效防止含Te的沉淀物结壳。）晶体作为防结皮剂。发现包壳量大于在仅Zr和Mo而没有Te的条件下的包壳量。因此，表明Te的高粘附性影响了ZMH的结壳量。
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