niobic是什么意思
2024-01-26 17:14:16
niobic
adj. 五价铌的
例句
- A series of niobic acids at different calcination temperatures was prepared. 在不同焙烧温度下制备了一系列固体铌酸催化剂。
- A new catalyst, niobic acid, was used for the synthesis of di 2 ethylhexyl maleate with yield of 86. 研究了用新型催化剂铌酸催化合成马来酸二辛酯的工艺。
- Using niobic acid as catalyst, cyclohexane as dehydrant, benzyl propionate was synthesized based on propionic acid and benzyl alcohol. 摘要以铌作催化剂，环己烷为带水剂，用丙酸和苯甲醇直接合成了丙酸苄酯。
- Niobic acid and compounds containing niobium are applied in a wide range of catalysis fields for their unique acidic property and thermal stability. 摘要铌酸和含铌化合物独特酸性和热稳定性，广泛的应用催化领域中。
- Niobic acid as a solid catalyst can be directly applied in the hydrolysis, esterification, condensation and alkylation reaction etc. 铌酸可直接作为固体催化剂，应用于水解、酯化、缩合、烷基化等反应中；
- Using liquid-phase esterification as a probe-reaction the catalytic activity of niobic acid on the synthesis of ethyl propionate was studied. 首次以丙酸与乙醇的酯化反应为探针反应,探索了铌酸液相催化合成丙酸乙酯的适宜条件。