查询词典 isomerization

Solid acid; turpentine; isomerization; zeolite; camphene

固体酸；松节油；异构化；沸石分子筛；莰烯

Seventhly, the effect of reuse of HY zeolite on isomerization reaction wasstudied.The results were as follows:when the HY zeolite was used many timescontinuously, the conversion rate of pinene dropped down markedly, but theselectivity of camphene fell no more.

7HY型沸石分子筛的重复使用对异构化反应的影响的结果指出，HY型沸石分子筛连续多次重复使用，蒎烯转化率显著降低，但莰烯选择性没有明显降低，其经烧炭再生能重复利用。

The results were asfollows:When the ratio of HY zeolite to raw material was 2.5g/100mL and thereaction was heated to 140℃for 4h,the effect of isomerization of turpentinewas better, the conversion rate of pinene was 97.02%,and the selectivity ofcamphene was 42.88%.When the ratio of HZSM-5 zeolite to raw material was4.5g/100mL and the reaction was heated to 140℃for 4h,the effect ofisomerization of turpentine was better, the conversion rate of pinene was86.24%,and the selectivity of camphene was 46.95%.

结(来源：A45BC论ba文网www.abclunwen.com)果表明：HY型沸石分子筛催化，当其用量为2.5g／100mL原料，反应在140℃下维持4h时，松节油的异构化效果较好，蒎烯转化率达97.02％，莰烯选择性为42.88％；而HZSM-5型沸石分子筛催化，当其用量为4.5 g／100mL原料，反应在140℃下维持4h时，松节油的异构化效果较好，蒎烯转化率达86.24％，莰烯选择性为46.95％。

By employ those techniques,the energy thresholds for conformational isomerization in a given reactant-product conformer pair(e.g.tryptamine) are directly determined.

文中还简要介绍了一种新的应用于构象异构动力学研究的光谱方法，即激励辐射泵浦-注孔和激励辐射泵浦-布居转移。

The shaped pulses were shown to be phase-sensitive at intensities too low to access different higher electronic states, and so these pulses apparently steer the isomerization through constructive and destructive interference effects, a mechanism supported by observed signatures of vibrational coherence.

脉冲形状被证明是在太低以至于不能进入不同的较高电子态的强度上对相位变化灵敏的，因此这些脉冲机制通过构成和破坏干扰反应操纵着异构化作用，这种机制由观测到的相干信号支持。

The shaped pulses were shown to be phase-sensitive atintensities too low to access different higher electronic states,and so these pulses apparently steer the isomerization throughconstructive and destructive interference effects, a mechanismsupported by observed signatures of vibrational coherence.

变过形的脉冲在低强度下显得很敏感，这种强度很小，因此很难进入更高的电子状态。于是，很明显地，这些脉冲能给通过破坏性和建设性的干扰效应来操控异构化作用。观测到的振动一致信号更支持了这样一种机制。

The catalysts are arranged in the order of their acidities as reflected in the amount of the disproportionation and skeletal isomerization products.

依不均衡反应及骨架异构化反应之产物的量，可把触媒按照其酸性程度排列。

On the basis of researching catalyst,the isomerization reaction of nerolidol wasinvestigated in detail,and then the optimum technical conditions are selected toprepare farnesol in a higher yield.

同时研究了催化剂——原钒酸酯以及目的产物的物理性质和化学性质，探讨了合成金合欢醇的可能反应机理和可能产物的化学结构，取得了令人满意的结果。

On the basis of consulting an amount of literatures and comparing differentsynthetic methods,a route of isomerization of nerolidol to produce farnesol wasadopted.

在查阅了大量文献资料的基础上，通过对比分析各种方法路线的优劣，选用从橙花叔醇异构化合成金合欢醇的路线，其主要优点是路线简单，分离容易。

Besides, the isomerization reactions of cyclopropanone in the ground state were investigated in this work.

此外， 还对环丙酮基态异构化反应进行了理论研究。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。