查询词典 catalysts

The molar ratio of different metal ions within support, the preparation methods of supports and catalysts, and other factors had been studied. The activity of catalyst was evaluated by the synthesis experiments of diphenyl carbonate.

实验考察了载体金属离子的组成和配比、载体和催化剂的制备方法等因素对催化活性的影响，以苯酚氧化羰基化反应合成DPC的实验结果对催化活性进行了评价。

Meanwhile,part of crystalline disaggregation and increase of crystalline size are also due to the catalysts deactivation.

另外，在反应过程中，催化剂部分晶相发生破坏以及晶胞尺寸的增大，也对其失活有一定的作用。

CeO〓 and Li〓O are favorable for NO disassociation adsorption on catalysts.

助剂Li〓O、CeO〓可促进NO在催化剂上的解离吸附。

New type of VPO catalysts were prepared by adding Ce, Mo components and dispersion in organic medium .

通过在有机相制备中添加助剂和分散剂制备出一类新型的VPO催化剂。

It was shown that the photocatalytic activity of TiO_2 catalysts that were prepared by sol-hydrothermal method was better than that prepared by sol-gel method from the comparison investigations of sol-hydrothermal and sol-gel methods, which result in the better dispersiveness of the former.

通过对溶胶-水热法和溶胶-凝胶法的比较研究，发现溶胶-水热法的制备样品的活性要高于溶胶-凝胶法，分析认为主要与前者的分散性较好有关。

The mechanism of modified Catalysts treating leachate through microwave catalytic oxidation showed that, for those rich in granular organic matters, microwave catalytic oxidation attains good pretreatment effect, while for those rich in dissolved organic matter, the effluent attained the municipal wastewater effluent standardsⅢafter treated; Molecular weigh cutting experiments showed that the removal efficiency of organic matter changes disproportionally with different molecular weight.

单目标物质催化剂的机理分析表明，以空气为氧化剂时，Ni-O/CeO_2催化剂的催化效能高于以Fe-O/CeO_2催化剂的催化效能；以H_2O_2为氧化剂以Fe-O/CeO_2催化剂的催化效能高于Ni-O/CeO_2催化剂的催化效能；微波催化氧化反应与常温常压催化氧化反应和水浴催化氧化反应相比大大缩短了反应时间、提高了反应效率。

Based on that, toluene disproportionation over HZSM-5 catalysts under near critical and high temperature was comparatively studied.

用高压观测池通过可视观测确定了苯、甲苯和对二甲苯等二元系及三元系的临界性质以及甲苯歧化反应混合物临界性质随着反应进程的变化规律；在此基础上，分别研究了近临界区以及高温下以HZSM-5为催化剂的甲苯歧化反应。

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。

Effects of Volume, Pressure, Temperature Changes and Catalysts _DrI#q

i。 体积，压力，温度变化以及催化剂的影响 R

The key factors influencing the ECH's polymerization were studied, including initiators, addition method of monomer, dosage of catalysts, and reaction time.

研究了影响ECH聚合的一些关键因素，包括引发剂的类型及用量，单体的加料方式及催化剂用量等。

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。