...性 程序升温还原 开环选择性 [gap=828]Keywords】: Y zeolite,Pt-Pd,Pt-Ir,sulfur-resistant,TPR,selectivity of ring-opening ...
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为了改善滤波器的性能，提高滤波器的选择性，提出了互补开环谐振器（COLR）。
To improve the performance and selectivity of filter, a complementary open-loop resonator(COLR) is proposed.
简要综述了对2,3 -环氧醇及其衍生物进行区域及立体选择性开环的各种方法的近期进展。
This paper reviews briefly recent developments in the regio and stereoselective ring opening of 2, 3 epoxy alcohols and their derivatives by a variety of methods.
阐述了利用环氧丙烷和甲醇在催化剂HM-9512存在下，通过选择性开环加成制备1-甲氧基-2-丙醇的工艺过程。
A process for preparing 1-methoxy-2-propanol by selective ring cleavage-addition reaction of propylene oxide with MeOH in the presence of HM-9512 catalyst is described.
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