催化的

Benzonitrile was selectively hydrogenated into benzylamine under mild conditions over activated amorphous nickel aluminium alloy catalyst which was prepared by rapidly quenching method.

由铜鼓快速淬冷法制备的非晶态NiAl合金催化剂经活化后用于催化苯甲腈加氢制苄胺的反应，考察了溶剂种类、苯甲腈初始浓度、催化剂用量、反应温度及反应压力等因素的影响，并测定了该催化加氢反应的表观活化能。

Prolonged reaction time or higher reaction temperature is beneficial for further boosting the conversion of benzyl alcohol.

而且，钨物种主要以无定形的形式存在，这样高分散的富含催化氧化活性中心的钨物种提高了对1， 3-丁二醇的催化氧化性能。

Furthermore, the electrocatalysis activities of powder properly prepared by microwave calcining are much higher than that by high temperature calcine.

并且，通过合适的微波焙烧工艺合成的粉体的电催化活性要比高温焙烧所得粉体的催化活性高。

A three-electrode system composed of TiO2/Ni as the working electrode, porous nickel as the counter electrode and saturated calomel electrode as the reference electrode was used for the photoelectrocatalytic degradation of sulfosalicylic acid under anodic bias potential.

建立了以刮浆工艺制得的TiO2/Ni为工作电极、泡沫镍为对电极、饱和甘汞电极为参比电极的光电催化反应体系，研究了在磺基水杨酸的光电催化降解过程中，外加电压和溶液PH值对降解速率的影响。

The experimental results show that:Under the conditions of reaction temperature 350℃,space velocity 4 800 h~(-1)and volume ratio of air to waste gas 15,the conversion rates of chloromethane and total hydrocarbon are all larger than 99%;There is almost no phosgene generation;HCl in the tail gas of oxidation can be well absorbed by NaOH solution;The activity of the catalyst usingγ-Al_2O_3 a...

实验结果表明：在反应温度为350℃、空速为4 800 h~(-1)、空气与氯甲烷废气的体积比为15的条件下，氯甲烷转化率和总烃转化率均大于99%，催化氧化过程中基本不产生光气；催化氧化反应后尾气中的HCl用NaOH溶液作吸收剂的吸收效果较好；γ-Al_2O_3为载体的催化剂活性基本稳定。

In this paper, under the condition of systematic discussing the endangerment of waste water including phenol ,the present treatment method, the mechanism of photocatalytic of TiO2 semiconductor and the reaction of magnetic chymistry, a new method of taking off phenol is proposed:photocatalytic degradation of phenol by TiO2 coupling with magnetic field.

本文在系统的论述了含酚废水的危害及其处理技术、半导体TiO2光催化和磁化学反应的机理的基础之上，提出了磁场-TiO2光催化耦合降解水中苯酚的新方法。

Examples include trypsinogen and chymotrypsinogen, secrete d by the pancreas and converted by proteolysis in the small intestine into the active enzymes trypsin and chymotrypsin; and numerous coagulation factors.

这作用受不同的催化或受的活化型本身的催化。原细胞合成并贮存钝化型式的原。胰脏分泌的胰蛋白原及胰凝乳蛋白原在小肠内活化成胰蛋白及胰乳凝蛋白。

As well as activity was exhibited. Theaddition of cinchonidine led to a remarkable increase in the reaction rate, as confirmed bythe IR study that the modifier activates the carbonyl groups of the reactant through itsquinuclidine nitrogen. On the contrary,〓 exerted a strong inhibition effect on theenantioselective hydrogenation. Chapter 3 Finely dispersed polyvinylpyrrolidone-stabilized iridium andbimetallic clusters were prepared by the alcohol-water reduction method.

第三章 采用醇水还原的方法制备了聚乙烯基吡咯烷酮稳定的铱纳米簇及双金属纳米簇，对丙酮酸甲酯的催化氢化表明，在铱金属簇催化体系中，辛可尼定不仅诱导了一定的对映选择性，同时对反应活性有明显的促进作用，平均反应速率可提高2-6倍。

Under the visible light catalysis, along with hard content's increase, the methyl orange degeneration rate increases gradually, when TiO2/the Fe2O3 compound proportion is 20:2, has the anatase structure catalysis effect to be best, the degeneration rate achieves 87.2%, but when the compound proportion surpasses 20:2, the degeneration rate drops.

在可见光的催化下，随着铁含量的增加，甲基橙的降解率逐渐增加，TiO2/ Fe2O3复合比例为20：2时，具有锐钛矿型的结构催化效果最佳，降解率达到87.2%，而当复合比例超过20：2时，降解率有所下降。

A dimeric catalyst is formed from titanium main catalyst and alkylauminium cocatalyst and the copolymerization catalyst is formed from metallocene catalyst and corespondent cocatalyst, and the above-mentioned both catalysts are formed into the invented double-function catalytic system which can directly make ethylene implement dimerization in same polymerization system, and at the same time, produce copolymerization reaction to form linear low-density polyethylene.

一种用于由乙烯合成线性低密度聚乙烯的双功能催化体系，二聚催化剂由钛系主催化剂和烷基铝助催化剂组成，共聚催化剂由茂金属催化剂和相应的助催化剂组成，这两种催化剂组成的双功能催化体系，可在同一聚合体系中，直接使乙烯二聚的同时就地发生共聚反应，生成线性低密度聚乙烯。

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％。