文献类型：专利

英文题名：Catalyst used in catalytic oxidation of tritiated hydrogen, comprises transition metal oxide and molybdenum oxide, and transition metal oxide is prepared by adding aqueous solution of transition metal oxide in sodium hydroxide solution

作者：LIU W;QIAN Y;WANG X;WU M;BAO G;QIN Z

机构：[1]UNIV EAST CHINA SCI & TECHNOLOGY

申请号：CN103831098-A

申请日：2014-03-04

公开日：2014-06-04

语种：英文

收录：DERWENT

摘要：NOVELTY - Catalyst comprises (in wt.%): transition metal oxide and molybdenum oxide, where content of molybdenum is 0.1-10%. USE - Catalyst used in catalytic oxidation of tritiated hydrogen (claimed). ADVANTAGE - The catalyst is hydrophobically modified, and has improved duration and activity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing catalyst, which involves: (A) preparing transition metal oxide by adding dropwise aqueous solution of transition metal oxide in aqueous sodium hydroxide solution, where mass fraction of water is 10-50% in transition metal oxide solution and water content is 10-20% in aqueous sodium hydroxide solution; (B) stirring the obtained mixture at room temperature; (C) filtering the obtained material; (D) washing the filtered material; (E) drying the washed material; (F) calcining the obtained material in a muffle furnace at 50 degrees C, where heating speed is 2.5 degrees C per minute; (G) maintaining the temperature at 500 degrees C for 4 hours to obtain transition metal oxide; (H) grinding the obtained transition metal oxide; (I) weighing the obtained transition metal oxide; (J) preparing 3-8% of transition metal oxide solution in toluene; (K) refluxing the obtained transition metal oxide solution in toluene and n-octyl triethoxysilane 120 degrees C for 5 hours, where mass ratio of transition metal oxide solution and n-octyl triethoxysilane is 1:3; (L) filtering the obtained product; (M) washing the filtered material with ethanol; (N) drying the washed material at 110 degrees C to obtain transition metal oxide having hydrophobic properties; (O) depositing molybdenum load on the obtained transition metal oxide by dipping; and (P) precipitating the obtained product to obtain the desired product.