查询词典 catalysts

These catalysts were employed in the HKR of epichlorohydrin, styrene oxide and phenyl glycidyl ether.

研究了其对环氧苯乙烷、环氧氯丙烷以及苯氧基环氧丙烷等的水解动力学拆分的催化作用。

A series of Bi-Zn composite oxide catalysts were prepared by coprecipitation and used for the synthesis of phenyl isocyanate by catalytic decomposition of methyl N-phenyl carbamate.

采用共沉淀法制备了一系列Bi-Zn复合氧化物催化剂并将其用于催化苯氨基甲酸甲酯分解制备苯基异氰酸酯。

In addition to the nature of the reactants outside the concentration, temperature and catalysts are also affected the reaction rate of the important factors.

除了反应物的性质以外，浓度、温度和催化剂也是影响反应速率的重要因素。

Due to its exceptional structure, theNASICON-type zirconium phosphates exhibit excellent properties of ionicconduction, low thermal expansion and capability of ion exchange, etc. As aresult, they are one kind of outstanding carriers for antimicrobial, catalysts,nuclear radwaste and so on.

得益于其结构的特殊性，这一类材料具有良好的离子导电、低热膨胀和离子交换等性能，是抗菌剂、催化剂和固定核废料放射性同位素等极好的载体。

Barley Grass Fiber contains pineapple enzyme and enzymes sourced from the barley grass powder.Enzymes are the catalysts for the body's essential chemical reactions and are responsible for our digestive processes that provides cellular energy and for antioxidant effects that offers a natural therapy for rejuvenation with cell protection against free radical.

大麦纤维素富含的菠萝酵素及其他源自大麦草粉酵素是消化过程的是消化反应主要的催化剂，它负责将人体消化过程中输送转化成的能量至细胞组织，促形成保护免受自由基对细胞氧化的作用，提供了人体美颜抗老的自然疗法。

In this paper, a turbostratic CN precursor was prepared by means of pyrolysis of melamine, then it was treated by high temperature and high pressure. The pyrolysis process of melamine, mechanism of hydrogen elimination and the effect of catalysts on pyrolysis of melamine were studied. The crystal structures, bonding states and chemical compositions of CN precursor obtained by pyrolyzing melamine are analyzed by X ray diffraction, burning spectrum, scanning elecron microscope and Fourier transform infrared Spectroscopy.

本文采用三聚氰胺热解法制备了乱层石墨结构的碳氮前驱物并进行了探索性的高温高压实验；研究了三聚氰胺热解的工艺、去氢机理以及催化剂对三聚氰胺热解过程的影响规律；借助 X 射线衍射、燃烧谱、透射电镜和红外光谱等手段，对获得的碳氮前驱物进行了成分、晶体结构、价键结构的分析。

Using catalysts to purify automotive exhaust gas has more and more been regarded by human society. It is generally accepted that the most important factor in the catalyst is the oxygen storage materials, which have a direct relation to the puring performance.

采用催化净化技术来治理汽车排放污染正越来越受到人们的广泛关注，而其中储氧材料性能的优劣直接关系到汽车尾气净化催化剂的净化效果。

Thermal absorbents and negative catalysts (including char forming promotors) are effective flame retarding additives to explosives. It had been theoretically and practically proved in this paper that it is possible to manufacture flame retarding explosives.

本文对炸药的阻燃研究表明：吸热剂对于AMATOL炸药和负催化剂对于TNT，B炸药，RDX，HMX都是有效的阻燃剂，制造阻燃炸药从理论上和实践上都是可行的。

Catalysts with metal compound promotors are widely used in sulfur recovery units.

各种负载金属催化剂在硫磺装置上被广泛应用，这些催化剂在停工过程中需要进行还原、热浸泡、烧碳再生、惰性气体吹扫、钝化处理，这些处理过程都面临过氧导致催化剂床层飞温危险。

The homogeneous catalysts for selective O-methylation of phenols with DMC are generally organic bases, such as tertiary amines or phosphines, tetrabutylammonium halide and Schiff bases.

酚与DMC甲基化反应的均相催化剂一般选择叔胺、叔膦、季铵盐及Schiff碱等有机碱，多相催化剂为碱金属碳酸盐、沸石、氧化铝及附载有金属盐的氧化铝和煅烧的Mg-Al水滑石。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。