1) Two-stage catalyze
两步催化
2) two step alkaline catalytic reaction
两步碱催化反应
3) acid/base two-step catalytic process
酸碱两步催化法
4) two-step acid-catalyzed process
酸催化两步法
1.
A two-step acid-catalyzed process for the preparation of biodiesel was carried out with cottonseed acid oil and methanol as the raw materials.
以棉籽酸化油和甲醇为原料,采用酸催化两步法制备生物柴油。
6) Biphasic catalysis
两相催化
1.
The development of biphasic catalysis involving water soluble phosphine rhodium complexes catalyzed olefin hydroformylation was discussed, as illustrated by the synthesis, structure stability and deactivation mechanism of water soluble phosphine ligand coordinated rhodium complexes and supported aqueous phase catalysts.
概述了烯烃氢甲酰化水溶性铑膦配合物催化剂分子设计的发展和水平 ,讨论有关水溶性铑膦配合物的结构、性能和在氢甲酰化催化反应中的应用 ,内容包括水溶性铑膦配合物催化剂和负载型水溶性铑膦配合物催化剂的设计、制备及其催化剂失活机理 ,并藉以说明水溶性配体和催化剂的合成、两相催化的应用开拓以及新型催化体系的设计乃将是今后研究的重点 。
2.
This paper describes the advances in the syntheses of watersoluble phosphines and aqueous biphasic catalysis by water soluble phosphine transitionmetal complexes, especially in the hydroformylation of olefins and the hydrogenation of α,β-unsaturated carbonyl compounds, and also in the asymmetric catalytic synthesis.
本文评述了水溶性膦配体的合成及以水溶性过渡金属膦络合物为催化剂的两相催化体系的研究和开发概况，着重介绍了两相体系在烯烃氢甲酰化、不饱和化合物的加氢及催化不对称合成中的应用，并对两相催化体系研究中存在的问题进行了探讨。
补充资料：三步两脚
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