查询词典 catalyst

The microwave method is superior to dipping method for preparation of solid base catalyst.

不同方法制得的催化剂以微波制备的较好。

The results show that direct decomposition of hydrogen sulfide under ultraviolet light could occur without catalyst.

实验结果表明，UVC可以在无催化剂条件下直接分解硫化氢制氢。

The results showed that magnesia base catalyst-sorbent was available to denitrification of flue gas by direct catalytic decomposition method the best calcinations time and temperature was 3-4 h and 350-500 ℃,and the denitrification rate was 85%- 95%.

结果表明，利用氧化镁基催化吸附剂可以对烟气进行直接催化分解脱硝，其最佳的焙烧温度和时间分别为350～500℃和3～4h，脱硝率可达85％～95％。

Applying the reaction route that methanol direct reforming and methanol decomposition carry out parallel, the kinetic model with power function type was established for Samp-10 catalyst in SRM, and the parameters of the model were also computed by the least twain multiply method.

以Samp-10催化剂为例，采用甲醇直接重整和甲醇分解平行进行的反应途径，建立了适合其在SRM制氢反应中使用的幂函数型动力学模型，并利用最小二乘法确定了模型参数，得到了其速率方程表达式。

A catalyst for preparing propylene by dismutation reaction of the gas mixture containing ethylene and butylene is composed of the active components (5-30%) including tungsten oxide, molybdenum oxide and rhenium oxide and the carrier (more than 50 wt.%) which may be molecular sieve of Silicate-2,H, beta, SAPO, ZSM, or MCM type.

一种以含乙烯和丁烯的混合气歧化制丙烯催化剂，组成为ABC/D，活性组份总的重量担载量为5－30％；其中A为钨的氧化物，B为钼的氧化物；C为铼的氧化物；D为混合物载体并且主要为分子筛(重量含量大于等于50％)，包括Silicate－2，Y，Hβ，SAPO系列，ZSM系列，和MCM系列分子筛。

The method is characterized in that: mixture of macromolecular dihydric alcohol and a dihydroxybutyl-terminated polydimethylsiloxane is dehydrated, added with diisocyanate for reaction, then added with a bis propionic acid, a dihydric alcohol chain extender and a catalyst - dibutyl tin laurate, and is diluted by acrylic ester; temperature reduction and emulsion are performed on the mixture after reaction; chain extension reaction is performed in water by a multi-amine chain extender, and siloxane modified polyurethane dispersoid which contains acrylic ester monomer is prepared; and an initiator - potassium persulphate is added into the siloxane modified polyurethane dispersoid for emulsion polymerization.

特征是先将大分子二元醇与二端羟丁基聚二甲基硅氧烷的混合液脱水后加入二异氰酸酯，反应后加入二羟甲基丙酸、二元醇扩链剂和催化剂二月桂酸二丁基锡，并用丙烯酸酯进行稀释，反应后降温乳化，用多元胺扩链剂在水中进行扩链反应，得到含有丙烯酸酯单体的硅氧烷改性聚氨酯分散体，然后再通过加入引发剂过硫酸钾进行乳液聚合。

Nano-Ni was first used as catalyst for disproportionation of resin acid .

将纳米镍催化剂首次应用于树脂酸的歧化反应中。

The mercerized zeolite thus prepared may be used as catalyst in disproportionation of tolune and reaction of alkyl transference.

制得的高硅丝光沸石可应用于制造甲苯歧化与烷基转移反应的催化剂。

Influence of N-methylmorpholine in C9 aromatics feed on behaviors of ZA-92 catalyst for toluene disproportionation and transalkylation were investigated.

研究了C9芳烃原料中N-甲基吗啉对ZA-92甲苯歧化与烷基转移工业催化剂催化性能的影响。

So it overcome the insufficiency of the one-time deplete of the already chloromethylation catalyst, which decreased its disserve to our entironment and realized the friendly entironmental chloromethylation.

与现有的催化剂不同，该催化体系含有一定量的水分，这样在反应过程中和反应结束后，都不会有大量的强致癌的中间体氯甲醚(来源：A27B9aC论文网www.abclunwen.com)的生成。

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。