As a new kind of hydrogenation catalyst, the effect of preparation condition on the structure of tungsten phosphide catalyst was studied.
考察了合成条件对新型加氢精制催化剂磷化钨结构的影响。
And the effects of kind of catalyst and polymerization condition on the preparation of low molecular weight lactic acid polymer were investigated.
研究探讨了催化剂种类及其用量、反应温度和时间等聚合条件对低分子量聚乳酸分子量的影响。
The process for preparation of isorotenone from rotenone by catalyst AlCl3 is feasible, and the reaction condition was mild.
实验结果表明，三氯化铝催化鱼藤酮异构化的方法可行，反应条件温和。
The process for preparation of isorotenone from rotenone by catalyst AlCl3 is feasible, and the reaction condition was mild.
实验结果表明，三氯化铝催化鱼藤酮异构化的方法可行，反应条件温和。
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