查询词典 catalyst

Adding Fe^3＋, H2O2 and other catalyst can improve the decoloration rate greatly.

加入Fe^3＋，H2O2等其他物质可提高染料的脱色率。

In all the methods of catalysts preparation, sol-gel process drying by high temperature decrepitation could achieve the best catalyst.

而在浸渍法和几种溶胶—凝胶法中，使用溶胶—凝胶法并使用高温烧爆法干燥的催化剂取得了最高的产量。

Catalysts made the deposition dehydrogenate to form coke and the coke convert from low-temperature type to high-temperature type. The higher the catalyst activity was, the more the conversion was.

催化剂促使沉积物脱氢形成积炭，并且使积炭从低温型向高温型转化，催化剂活性越高，转化越明显。

Deliquescent Ca3B2N4 catalyst by high pressure and high temperature.

采用潮解的Ca3B2N4触媒获得一种正交结构B2CN化合物。

A dominant B2CN crystal with orthorhombic structure was synthesized using deliquescent Ca3B2N4 catalyst by high pressure and high temperature. This crystal is a white photoluminescence material with blue-violet luminescence characteristic.

采用乱层石墨结构B2CN为前驱物，在高温高压下获得了六方B2CN晶体；采用Ca3B2N4触媒；在压力为3~6 GPa；温度为800~1600 ℃范围内测定了立方B(CxN1-x)的P-T相图；合成出了立方B(CxN1-x)(x=0.1~0.4)化合物。

We knew this could be the catalyst that would unlock the potential of the PC to democratize computing and create the right conditions for an explosion in programs and applications that would lead to really rapid growth of the PC market.

我们认识到它可能成为释放PC潜力、普及计算技术的催化剂，为应用和软件的爆炸式增长创造合适的条件，并推动PC市场快速增长。

Polymerization of a phenylacetylene monomer bearing a dendron moiety was carried out by using a rhodium complex Rh[Cl2]2 as catalyst. The structure of the resultant was characterized with infrared, nuclear magnetic resonance, and UV-visible absorption spectroscopic techniques; the experimental data confirmed the generation of the expected polyphenylacetylene derivative (P1) with dendron pendants.

本文合成了带树枝状聚苯甲醚修饰基团的苯乙炔单体，在Rh[Cl2]2催化剂的作用下得到了侧链带聚苯甲醚树枝的新型聚苯乙炔衍生物，用红外吸收光谱、核磁共振谱、紫外可见吸收光谱和凝胶渗透色谱表征了聚合物的结构。

These dendritic NOBIN derived Schiff base ligands have been applied to titanium catalyzed hetero-Diels-Alder reaction of Danishefshy's diene and aldehydes, affording the corresponding 2-substituted 2, 3-dihydro-4H-pyran-4-one in quantitative yields and excellent enantioselectivities (up to 97. 2%ee). Comparing the reactivities and enantioselectivities of reaction catalyzed by the titanium complexes of these Schiff base ligands, it was found that a series of ligands L〓 were superior to the other three series of ligands L〓, L〓 and L〓, a significant positive NLE and a dendrimer effect existed in the L〓 dendritic catalyst system. The disposition of the dendritic wedges and the dendron size in the ligands were observed to have a significant impact on the enantioselectivity of the reaction.

NOBIN衍生的树枝状大分子希夫碱手性配体与钛形成的配合物在催化不对称杂Diels-Alder反应中的应用将得到的四个系列NOBIN衍生的树枝状希夫碱三齿手性配体与四异丙氧基钛形成的配合物用于催化Danishefsky's diene与醛的不对称杂Diels-Alder反应，通过反应条件的优化，获得了定量的收率和最高达97.2％ee值的对映选择性；考察了这四个系列NOBIN衍生的树枝状希夫碱钛配合物的催化活性和对映选择性，结果发现它们的活性次序依次为L〓≈L〓＞L〓＞L〓，对映选择性次序依次为L〓＞L〓＞L〓＞L〓。

The research achievements including NO generation of coal-burning power plant, all kinds of denitration technology at domestic and abroad, property of selective catalyst reducing denitration technology and comparison of different catalysts were introduced.

本文介绍火电厂燃煤锅炉NO的生成途径、目前国内外各种脱硝技术方法、选择性催化还原烟气脱硝技术特点及不同催化剂型式性能比较等研究成果。

The results showed that the frame density and particle size distribution of the catalyst have significant impacts on the fluidization performances.

结果表明，HCC催化剂的骨架密度、筛分组成等物理性质对流化行为影响很大。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。