查询词典 catalytic

The apparatus can be used to atomize feed injected into the cracking zone of a fluid catalytic cracker.

所述装置可用于雾化注入流化床催化裂化设备的裂化段的进料。

It was used to simulate the catalytic distillation column of methyl acetate and methanol azeotrope hydrolysis combined with the macro-dynamic equation of methyl acetate hydrolysis.

应用该方法结合实验测定的醋酸甲酯催化水解动力学数据对醋酸甲酯与甲醇共沸物催化精馏水解小试过程进行了模拟计算，得到了满意的结果。

Their catalytic activity were evaluated by comparing their structure and basicity. The mechanism of the reaction has also been discussed.

通过结构特点和碱性强弱解释评价其催化活性，并且对反应机理进行了初步探讨。

GUP decomposed to guanidine polyphosphate GPP(at about 180℃), then to ammonium polyphosphate APP (at about 285℃), and in turn to polyphosphoric acid PPA (at about 385℃). The pyrolysis process of basswood was changed by the treatment of FRW or its components. It was discovered that BZ lose weight at quite lower temperature (165℃) than UZ did, and this may attribute to the catalytic effect of B on the pyrolysis of basswood to form char.

FRW阻燃剂及其组分均改变了木材的热解途径，其中，观察到BZ在较低的温度下（约165℃）即发生明显的失重，说明硼酸的阻燃机理除了传统理论认为的物理覆盖作用以外尚存在化学催化作；GUP 处理使紫椴木材的最大失重速率温度从375℃降低到314℃，同时失重率也显著降低，而成炭率升高；FZ的失重率低于其他处理材。

This catalytic system can be used in the preparation of a broad range of esters.

该催化剂适用于醛与多种底物醇的氧化酯化反应，尤其是对于一些长链饱和醇也有很好的催化活性。

The catalytic effects of 16a-e on the asymmetric addition of diethylzinc to benzaldehyde were evaluated, and it was found that they could promote the reaction with up to 63% yield and 27% ee.

研究了化合物16a-e催化二乙基锌对苯甲醛的不对称加成，发现16b-e可以催化该反应的进行，最高产率为63％，ee值27％。

It is an economic, efficient method to treat the waste of Benzene by the catalytic combustion.

采用催化燃烧的方法治理苯系废弃物是一种经济、高效的方法。

In this thesis, the emphasis is on the research of synthesis of a novel chiral imidazolium salt and application of chiral/achiral imidazolium salt in catalytic benzoin condensations.

本文致力于手性咪唑鎓盐离子液体的合成及手性/非手性咪哗基催化安息香缩合反应的研究。

In fact, the application of chiral ILs in asymmetric catalytic transformations is still at a preliminary stage.Benzoin is an important intermediate in organosynthesis. And more than, chiral benzoin is important structure unit of many bioactive compounds and building blocks of many enantioselective synthesis.

苯偶姻是一种重要的有机合成中间体，而且光学活性苯偶姻是许多生物活性化合物的重要结构单元，是可用于立体选择性合成生物活性有机分子的重要合成砌块。

The coking crude benzol hydrogenation process and its catalytic system are discussed, and the domestic application of the hydrogenation process is introduced briefly.

论述了焦化粗苯加氢精制的工艺方法及其催化体系，并简单介绍了国内加氢工艺的应用。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。